зеркало из https://github.com/mozilla/gecko-dev.git
7439 строки
244 KiB
C++
7439 строки
244 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifdef XP_WIN
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# include "objbase.h"
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// Some Windows header defines this, so undef it as it conflicts with our
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// function of the same name.
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# undef GetCurrentTime
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#endif
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#include "mozilla/dom/HTMLMediaElement.h"
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#include "AudioChannelService.h"
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#include "AudioDeviceInfo.h"
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#include "AudioStreamTrack.h"
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#include "AutoplayPolicy.h"
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#include "ChannelMediaDecoder.h"
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#include "DOMMediaStream.h"
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#include "DecoderDoctorDiagnostics.h"
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#include "DecoderDoctorLogger.h"
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#include "DecoderTraits.h"
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#include "FrameStatistics.h"
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#include "GMPCrashHelper.h"
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#ifdef MOZ_ANDROID_HLS_SUPPORT
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# include "HLSDecoder.h"
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#endif
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#include "HTMLMediaElement.h"
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#include "ImageContainer.h"
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#include "Layers.h"
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#include "MP4Decoder.h"
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#include "MediaContainerType.h"
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#include "MediaError.h"
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#include "MediaManager.h"
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#include "MediaMetadataManager.h"
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#include "MediaResource.h"
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#include "MediaShutdownManager.h"
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#include "MediaSourceDecoder.h"
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#include "MediaStreamError.h"
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#include "MediaStreamGraph.h"
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#include "MediaStreamListener.h"
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#include "MediaTrackList.h"
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#include "SVGObserverUtils.h"
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#include "TimeRanges.h"
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#include "VideoFrameContainer.h"
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#include "VideoStreamTrack.h"
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#include "base/basictypes.h"
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#include "jsapi.h"
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#include "mozilla/ArrayUtils.h"
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#include "mozilla/AsyncEventDispatcher.h"
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#include "mozilla/EMEUtils.h"
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#include "mozilla/EventDispatcher.h"
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#include "mozilla/EventStateManager.h"
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#include "mozilla/FloatingPoint.h"
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#include "mozilla/MathAlgorithms.h"
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#include "mozilla/NotNull.h"
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#include "mozilla/Preferences.h"
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#include "mozilla/PresShell.h"
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#include "mozilla/Sprintf.h"
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#include "mozilla/StaticPrefs.h"
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#include "mozilla/Telemetry.h"
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#include "mozilla/dom/AudioTrack.h"
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#include "mozilla/dom/AudioTrackList.h"
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#include "mozilla/dom/BlobURLProtocolHandler.h"
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#include "mozilla/dom/ElementInlines.h"
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#include "mozilla/dom/HTMLAudioElement.h"
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#include "mozilla/dom/HTMLInputElement.h"
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#include "mozilla/dom/HTMLMediaElementBinding.h"
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#include "mozilla/dom/HTMLSourceElement.h"
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#include "mozilla/dom/HTMLVideoElement.h"
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#include "mozilla/dom/MediaEncryptedEvent.h"
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#include "mozilla/dom/MediaErrorBinding.h"
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#include "mozilla/dom/MediaSource.h"
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#include "mozilla/dom/PlayPromise.h"
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#include "mozilla/dom/Promise.h"
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#include "mozilla/dom/TextTrack.h"
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#include "mozilla/dom/VideoPlaybackQuality.h"
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#include "mozilla/dom/VideoTrack.h"
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#include "mozilla/dom/VideoTrackList.h"
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#include "mozilla/dom/WakeLock.h"
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#include "mozilla/dom/power/PowerManagerService.h"
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#include "mozilla/net/UrlClassifierFeatureFactory.h"
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#include "nsAttrValueInlines.h"
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#include "nsContentPolicyUtils.h"
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#include "nsContentUtils.h"
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#include "nsCycleCollectionParticipant.h"
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#include "nsDisplayList.h"
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#include "nsDocShell.h"
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#include "nsError.h"
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#include "nsGenericHTMLElement.h"
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#include "nsGkAtoms.h"
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#include "nsIAsyncVerifyRedirectCallback.h"
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#include "nsIAutoplay.h"
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#include "nsICachingChannel.h"
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#include "nsICategoryManager.h"
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#include "nsIClassOfService.h"
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#include "nsIContentPolicy.h"
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#include "nsIContentSecurityPolicy.h"
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#include "nsIDocShell.h"
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#include "mozilla/dom/Document.h"
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#include "nsIFrame.h"
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#include "nsIObserverService.h"
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#include "nsIPermissionManager.h"
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#include "nsIRequest.h"
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#include "nsIScriptError.h"
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#include "nsIScriptSecurityManager.h"
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#include "nsISupportsPrimitives.h"
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#include "nsIThreadInternal.h"
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#include "nsITimer.h"
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#include "nsIXPConnect.h"
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#include "nsJSUtils.h"
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#include "nsLayoutUtils.h"
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#include "nsMediaFragmentURIParser.h"
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#include "nsMimeTypes.h"
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#include "nsNetUtil.h"
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#include "nsNodeInfoManager.h"
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#include "nsPresContext.h"
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#include "nsQueryObject.h"
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#include "nsRange.h"
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#include "nsSize.h"
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#include "nsThreadUtils.h"
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#include "nsURIHashKey.h"
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#include "nsVideoFrame.h"
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#include "ReferrerInfo.h"
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#include "xpcpublic.h"
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#include <algorithm>
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#include <cmath>
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#include <limits>
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mozilla::LazyLogModule gMediaElementLog("nsMediaElement");
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static mozilla::LazyLogModule gMediaElementEventsLog("nsMediaElementEvents");
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extern mozilla::LazyLogModule gAutoplayPermissionLog;
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#define AUTOPLAY_LOG(msg, ...) \
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MOZ_LOG(gAutoplayPermissionLog, LogLevel::Debug, (msg, ##__VA_ARGS__))
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#define LOG(type, msg) MOZ_LOG(gMediaElementLog, type, msg)
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#define LOG_EVENT(type, msg) MOZ_LOG(gMediaElementEventsLog, type, msg)
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using namespace mozilla::layers;
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using mozilla::net::nsMediaFragmentURIParser;
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using namespace mozilla::dom::HTMLMediaElement_Binding;
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namespace mozilla {
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namespace dom {
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// Number of milliseconds between progress events as defined by spec
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static const uint32_t PROGRESS_MS = 350;
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// Number of milliseconds of no data before a stall event is fired as defined by
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// spec
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static const uint32_t STALL_MS = 3000;
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// Used by AudioChannel for suppresssing the volume to this ratio.
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#define FADED_VOLUME_RATIO 0.25
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// These constants are arbitrary
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// Minimum playbackRate for a media
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static const double MIN_PLAYBACKRATE = 1.0 / 16;
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// Maximum playbackRate for a media
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static const double MAX_PLAYBACKRATE = 16.0;
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// These are the limits beyonds which SoundTouch does not perform too well and
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// when speech is hard to understand anyway. Threshold above which audio is
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// muted
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static const double THRESHOLD_HIGH_PLAYBACKRATE_AUDIO = 4.0;
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// Threshold under which audio is muted
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static const double THRESHOLD_LOW_PLAYBACKRATE_AUDIO = 0.25;
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static double ClampPlaybackRate(double aPlaybackRate) {
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MOZ_ASSERT(aPlaybackRate >= 0.0);
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if (aPlaybackRate == 0.0) {
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return aPlaybackRate;
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}
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if (aPlaybackRate < MIN_PLAYBACKRATE) {
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return MIN_PLAYBACKRATE;
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}
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if (aPlaybackRate > MAX_PLAYBACKRATE) {
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return MAX_PLAYBACKRATE;
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}
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return aPlaybackRate;
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}
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// Media error values. These need to match the ones in MediaError.webidl.
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static const unsigned short MEDIA_ERR_ABORTED = 1;
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static const unsigned short MEDIA_ERR_NETWORK = 2;
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static const unsigned short MEDIA_ERR_DECODE = 3;
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static const unsigned short MEDIA_ERR_SRC_NOT_SUPPORTED = 4;
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static void ResolvePromisesWithUndefined(
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const nsTArray<RefPtr<PlayPromise>>& aPromises) {
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for (auto& promise : aPromises) {
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promise->MaybeResolveWithUndefined();
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}
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}
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static void RejectPromises(const nsTArray<RefPtr<PlayPromise>>& aPromises,
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nsresult aError) {
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for (auto& promise : aPromises) {
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promise->MaybeReject(aError);
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}
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}
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// Under certain conditions there may be no-one holding references to
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// a media element from script, DOM parent, etc, but the element may still
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// fire meaningful events in the future so we can't destroy it yet:
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// 1) If the element is delaying the load event (or would be, if it were
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// in a document), then events up to loadeddata or error could be fired,
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// so we need to stay alive.
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// 2) If the element is not paused and playback has not ended, then
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// we will (or might) play, sending timeupdate and ended events and possibly
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// audio output, so we need to stay alive.
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// 3) if the element is seeking then we will fire seeking events and possibly
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// start playing afterward, so we need to stay alive.
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// 4) If autoplay could start playback in this element (if we got enough data),
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// then we need to stay alive.
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// 5) if the element is currently loading, not suspended, and its source is
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// not a MediaSource, then script might be waiting for progress events or a
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// 'stalled' or 'suspend' event, so we need to stay alive.
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// If we're already suspended then (all other conditions being met),
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// it's OK to just disappear without firing any more events,
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// since we have the freedom to remain suspended indefinitely. Note
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// that we could use this 'suspended' loophole to garbage-collect a suspended
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// element in case 4 even if it had 'autoplay' set, but we choose not to.
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// If someone throws away all references to a loading 'autoplay' element
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// sound should still eventually play.
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// 6) If the source is a MediaSource, most loading events will not fire unless
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// appendBuffer() is called on a SourceBuffer, in which case something is
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// already referencing the SourceBuffer, which keeps the associated media
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// element alive. Further, a MediaSource will never time out the resource
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// fetch, and so should not keep the media element alive if it is
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// unreferenced. A pending 'stalled' event keeps the media element alive.
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//
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// Media elements owned by inactive documents (i.e. documents not contained in
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// any document viewer) should never hold a self-reference because none of the
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// above conditions are allowed: the element will stop loading and playing
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// and never resume loading or playing unless its owner document changes to
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// an active document (which can only happen if there is an external reference
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// to the element).
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// Media elements with no owner doc should be able to hold a self-reference.
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// Something native must have created the element and may expect it to
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// stay alive to play.
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// It's very important that any change in state which could change the value of
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// needSelfReference in AddRemoveSelfReference be followed by a call to
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// AddRemoveSelfReference before this element could die!
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// It's especially important if needSelfReference would change to 'true',
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// since if we neglect to add a self-reference, this element might be
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// garbage collected while there are still event listeners that should
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// receive events. If we neglect to remove the self-reference then the element
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// just lives longer than it needs to.
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class nsMediaEvent : public Runnable {
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public:
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explicit nsMediaEvent(const char* aName, HTMLMediaElement* aElement)
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: Runnable(aName),
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mElement(aElement),
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mLoadID(mElement->GetCurrentLoadID()) {}
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~nsMediaEvent() {}
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NS_IMETHOD Run() override = 0;
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protected:
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bool IsCancelled() { return mElement->GetCurrentLoadID() != mLoadID; }
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RefPtr<HTMLMediaElement> mElement;
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uint32_t mLoadID;
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};
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class HTMLMediaElement::nsAsyncEventRunner : public nsMediaEvent {
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private:
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nsString mName;
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public:
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nsAsyncEventRunner(const nsAString& aName, HTMLMediaElement* aElement)
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: nsMediaEvent("HTMLMediaElement::nsAsyncEventRunner", aElement),
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mName(aName) {}
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NS_IMETHOD Run() override {
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// Silently cancel if our load has been cancelled.
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if (IsCancelled()) return NS_OK;
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return mElement->DispatchEvent(mName);
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}
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};
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/*
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* If no error is passed while constructing an instance, the instance will
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* resolve the passed promises with undefined; otherwise, the instance will
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* reject the passed promises with the passed error.
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*
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* The constructor appends the constructed instance into the passed media
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* element's mPendingPlayPromisesRunners member and once the the runner is run
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* (whether fulfilled or canceled), it removes itself from
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* mPendingPlayPromisesRunners.
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*/
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class HTMLMediaElement::nsResolveOrRejectPendingPlayPromisesRunner
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: public nsMediaEvent {
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nsTArray<RefPtr<PlayPromise>> mPromises;
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nsresult mError;
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public:
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nsResolveOrRejectPendingPlayPromisesRunner(
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HTMLMediaElement* aElement, nsTArray<RefPtr<PlayPromise>>&& aPromises,
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nsresult aError = NS_OK)
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: nsMediaEvent(
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"HTMLMediaElement::nsResolveOrRejectPendingPlayPromisesRunner",
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aElement),
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mPromises(std::move(aPromises)),
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mError(aError) {
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mElement->mPendingPlayPromisesRunners.AppendElement(this);
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}
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void ResolveOrReject() {
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if (NS_SUCCEEDED(mError)) {
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ResolvePromisesWithUndefined(mPromises);
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} else {
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RejectPromises(mPromises, mError);
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}
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}
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NS_IMETHOD Run() override {
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if (!IsCancelled()) {
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ResolveOrReject();
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}
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mElement->mPendingPlayPromisesRunners.RemoveElement(this);
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return NS_OK;
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}
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};
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class HTMLMediaElement::nsNotifyAboutPlayingRunner
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: public nsResolveOrRejectPendingPlayPromisesRunner {
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public:
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nsNotifyAboutPlayingRunner(
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HTMLMediaElement* aElement,
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nsTArray<RefPtr<PlayPromise>>&& aPendingPlayPromises)
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: nsResolveOrRejectPendingPlayPromisesRunner(
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aElement, std::move(aPendingPlayPromises)) {}
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NS_IMETHOD Run() override {
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if (IsCancelled()) {
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mElement->mPendingPlayPromisesRunners.RemoveElement(this);
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return NS_OK;
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}
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mElement->DispatchEvent(NS_LITERAL_STRING("playing"));
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return nsResolveOrRejectPendingPlayPromisesRunner::Run();
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}
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};
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class nsSourceErrorEventRunner : public nsMediaEvent {
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private:
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nsCOMPtr<nsIContent> mSource;
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public:
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nsSourceErrorEventRunner(HTMLMediaElement* aElement, nsIContent* aSource)
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: nsMediaEvent("dom::nsSourceErrorEventRunner", aElement),
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mSource(aSource) {}
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NS_IMETHOD Run() override {
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// Silently cancel if our load has been cancelled.
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if (IsCancelled()) return NS_OK;
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LOG_EVENT(LogLevel::Debug,
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("%p Dispatching simple event source error", mElement.get()));
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return nsContentUtils::DispatchTrustedEvent(
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mElement->OwnerDoc(), mSource, NS_LITERAL_STRING("error"),
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CanBubble::eNo, Cancelable::eNo);
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}
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};
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/**
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* This listener observes the first video frame to arrive with a non-empty size,
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* and calls HTMLMediaElement::UpdateInitialMediaSize() with that size.
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*/
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class HTMLMediaElement::VideoFrameListener
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: public DirectMediaStreamTrackListener {
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public:
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explicit VideoFrameListener(HTMLMediaElement* aElement)
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: mElement(aElement),
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mMainThreadEventTarget(aElement->MainThreadEventTarget()),
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mInitialSizeFound(false) {
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MOZ_ASSERT(NS_IsMainThread());
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MOZ_ASSERT(mElement);
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MOZ_ASSERT(mMainThreadEventTarget);
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}
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void Forget() {
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MOZ_ASSERT(NS_IsMainThread());
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mElement = nullptr;
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}
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void ReceivedSize(gfx::IntSize aSize) {
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MOZ_ASSERT(NS_IsMainThread());
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if (!mElement) {
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return;
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}
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mElement->UpdateInitialMediaSize(aSize);
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}
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void NotifyRealtimeTrackData(MediaStreamGraph* aGraph,
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StreamTime aTrackOffset,
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const MediaSegment& aMedia) override {
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if (mInitialSizeFound) {
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return;
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}
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if (aMedia.GetType() != MediaSegment::VIDEO) {
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MOZ_ASSERT(false, "Should only lock on to a video track");
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return;
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}
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const VideoSegment& video = static_cast<const VideoSegment&>(aMedia);
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for (VideoSegment::ConstChunkIterator c(video); !c.IsEnded(); c.Next()) {
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if (c->mFrame.GetIntrinsicSize() != gfx::IntSize(0, 0)) {
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mInitialSizeFound = true;
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// This is fine to dispatch straight to main thread (instead of via
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// ...AfterStreamUpdate()) since it reflects state of the element,
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// not the stream. Events reflecting stream or track state should be
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// dispatched so their order is preserved.
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mMainThreadEventTarget->Dispatch(NewRunnableMethod<gfx::IntSize>(
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"dom::HTMLMediaElement::VideoFrameListener::ReceivedSize", this,
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&VideoFrameListener::ReceivedSize, c->mFrame.GetIntrinsicSize()));
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return;
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}
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}
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}
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private:
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// These fields may only be accessed on the main thread
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WeakPtr<HTMLMediaElement> mElement;
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// We hold mElement->MainThreadEventTarget() here because the mElement could
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// be reset in Forget().
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nsCOMPtr<nsISerialEventTarget> mMainThreadEventTarget;
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// These fields may only be accessed on the MSG's appending thread.
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// (this is a direct listener so we get called by whoever is producing
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// this track's data)
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bool mInitialSizeFound;
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};
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class HTMLMediaElement::StreamCaptureTrackSource
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: public MediaStreamTrackSource,
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public MediaStreamTrackSource::Sink {
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public:
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NS_DECL_ISUPPORTS_INHERITED
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NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(StreamCaptureTrackSource,
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MediaStreamTrackSource)
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StreamCaptureTrackSource(HTMLMediaElement* aElement,
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MediaStreamTrackSource* aCapturedTrackSource,
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DOMMediaStream* aOwningStream,
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TrackID aDestinationTrackID)
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: MediaStreamTrackSource(aCapturedTrackSource->GetPrincipal(),
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nsString()),
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mElement(aElement),
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mCapturedTrackSource(aCapturedTrackSource),
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mOwningStream(aOwningStream),
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mDestinationTrackID(aDestinationTrackID) {
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MOZ_ASSERT(mElement);
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MOZ_ASSERT(mCapturedTrackSource);
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MOZ_ASSERT(mOwningStream);
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MOZ_ASSERT(IsTrackIDExplicit(mDestinationTrackID));
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mCapturedTrackSource->RegisterSink(this);
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}
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void Destroy() override {
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if (mCapturedTrackSource) {
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mCapturedTrackSource->UnregisterSink(this);
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mCapturedTrackSource = nullptr;
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}
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}
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MediaSourceEnum GetMediaSource() const override {
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return MediaSourceEnum::Other;
|
|
}
|
|
|
|
CORSMode GetCORSMode() const override {
|
|
if (!mCapturedTrackSource) {
|
|
// This could happen during shutdown.
|
|
return CORS_NONE;
|
|
}
|
|
|
|
return mCapturedTrackSource->GetCORSMode();
|
|
}
|
|
|
|
void Stop() override {
|
|
if (mElement && mElement->mSrcStream) {
|
|
// Only notify if we're still playing the source stream. GC might have
|
|
// cleared it before the track sources.
|
|
mElement->NotifyOutputTrackStopped(mOwningStream, mDestinationTrackID);
|
|
}
|
|
mElement = nullptr;
|
|
mOwningStream = nullptr;
|
|
|
|
Destroy();
|
|
}
|
|
|
|
/**
|
|
* Do not keep the track source alive. The source lifetime is controlled by
|
|
* its associated tracks.
|
|
*/
|
|
bool KeepsSourceAlive() const override { return false; }
|
|
|
|
/**
|
|
* Do not keep the track source on. It is controlled by its associated tracks.
|
|
*/
|
|
bool Enabled() const override { return false; }
|
|
|
|
void Disable() override {}
|
|
|
|
void Enable() override {}
|
|
|
|
void PrincipalChanged() override {
|
|
if (!mCapturedTrackSource) {
|
|
// This could happen during shutdown.
|
|
return;
|
|
}
|
|
|
|
mPrincipal = mCapturedTrackSource->GetPrincipal();
|
|
MediaStreamTrackSource::PrincipalChanged();
|
|
}
|
|
|
|
void MutedChanged(bool aNewState) override {
|
|
if (!mCapturedTrackSource) {
|
|
// This could happen during shutdown.
|
|
return;
|
|
}
|
|
|
|
MediaStreamTrackSource::MutedChanged(aNewState);
|
|
}
|
|
|
|
private:
|
|
virtual ~StreamCaptureTrackSource() = default;
|
|
|
|
RefPtr<HTMLMediaElement> mElement;
|
|
RefPtr<MediaStreamTrackSource> mCapturedTrackSource;
|
|
RefPtr<DOMMediaStream> mOwningStream;
|
|
TrackID mDestinationTrackID;
|
|
};
|
|
|
|
NS_IMPL_ADDREF_INHERITED(HTMLMediaElement::StreamCaptureTrackSource,
|
|
MediaStreamTrackSource)
|
|
NS_IMPL_RELEASE_INHERITED(HTMLMediaElement::StreamCaptureTrackSource,
|
|
MediaStreamTrackSource)
|
|
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(
|
|
HTMLMediaElement::StreamCaptureTrackSource)
|
|
NS_INTERFACE_MAP_END_INHERITING(MediaStreamTrackSource)
|
|
NS_IMPL_CYCLE_COLLECTION_INHERITED(HTMLMediaElement::StreamCaptureTrackSource,
|
|
MediaStreamTrackSource, mElement,
|
|
mCapturedTrackSource, mOwningStream)
|
|
|
|
/**
|
|
* There is a reference cycle involving this class: MediaLoadListener
|
|
* holds a reference to the HTMLMediaElement, which holds a reference
|
|
* to an nsIChannel, which holds a reference to this listener.
|
|
* We break the reference cycle in OnStartRequest by clearing mElement.
|
|
*/
|
|
class HTMLMediaElement::MediaLoadListener final
|
|
: public nsIStreamListener,
|
|
public nsIChannelEventSink,
|
|
public nsIInterfaceRequestor,
|
|
public nsIObserver,
|
|
public nsIThreadRetargetableStreamListener {
|
|
~MediaLoadListener() {}
|
|
|
|
NS_DECL_THREADSAFE_ISUPPORTS
|
|
NS_DECL_NSIREQUESTOBSERVER
|
|
NS_DECL_NSISTREAMLISTENER
|
|
NS_DECL_NSICHANNELEVENTSINK
|
|
NS_DECL_NSIOBSERVER
|
|
NS_DECL_NSIINTERFACEREQUESTOR
|
|
NS_DECL_NSITHREADRETARGETABLESTREAMLISTENER
|
|
|
|
public:
|
|
explicit MediaLoadListener(HTMLMediaElement* aElement)
|
|
: mElement(aElement), mLoadID(aElement->GetCurrentLoadID()) {
|
|
MOZ_ASSERT(mElement, "Must pass an element to call back");
|
|
}
|
|
|
|
private:
|
|
RefPtr<HTMLMediaElement> mElement;
|
|
nsCOMPtr<nsIStreamListener> mNextListener;
|
|
const uint32_t mLoadID;
|
|
};
|
|
|
|
NS_IMPL_ISUPPORTS(HTMLMediaElement::MediaLoadListener, nsIRequestObserver,
|
|
nsIStreamListener, nsIChannelEventSink, nsIInterfaceRequestor,
|
|
nsIObserver, nsIThreadRetargetableStreamListener)
|
|
|
|
NS_IMETHODIMP
|
|
HTMLMediaElement::MediaLoadListener::Observe(nsISupports* aSubject,
|
|
const char* aTopic,
|
|
const char16_t* aData) {
|
|
nsContentUtils::UnregisterShutdownObserver(this);
|
|
|
|
// Clear mElement to break cycle so we don't leak on shutdown
|
|
mElement = nullptr;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLMediaElement::MediaLoadListener::OnStartRequest(nsIRequest* aRequest) {
|
|
nsContentUtils::UnregisterShutdownObserver(this);
|
|
|
|
if (!mElement) {
|
|
// We've been notified by the shutdown observer, and are shutting down.
|
|
return NS_BINDING_ABORTED;
|
|
}
|
|
|
|
// Media element playback is not currently supported when recording or
|
|
// replaying. See bug 1304146.
|
|
if (recordreplay::IsRecordingOrReplaying()) {
|
|
mElement->ReportLoadError("Media elements not available when recording",
|
|
nullptr, 0);
|
|
return NS_ERROR_NOT_AVAILABLE;
|
|
}
|
|
|
|
// The element is only needed until we've had a chance to call
|
|
// InitializeDecoderForChannel. So make sure mElement is cleared here.
|
|
RefPtr<HTMLMediaElement> element;
|
|
element.swap(mElement);
|
|
|
|
AbstractThread::AutoEnter context(element->AbstractMainThread());
|
|
|
|
if (mLoadID != element->GetCurrentLoadID()) {
|
|
// The channel has been cancelled before we had a chance to create
|
|
// a decoder. Abort, don't dispatch an "error" event, as the new load
|
|
// may not be in an error state.
|
|
return NS_BINDING_ABORTED;
|
|
}
|
|
|
|
// Don't continue to load if the request failed or has been canceled.
|
|
nsresult status;
|
|
nsresult rv = aRequest->GetStatus(&status);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
if (NS_FAILED(status)) {
|
|
if (element) {
|
|
// Handle media not loading error because source was a tracking URL (or
|
|
// fingerprinting, cryptomining, etc).
|
|
// We make a note of this media node by including it in a dedicated
|
|
// array of blocked tracking nodes under its parent document.
|
|
if (net::UrlClassifierFeatureFactory::IsClassifierBlockingErrorCode(
|
|
status)) {
|
|
Document* ownerDoc = element->OwnerDoc();
|
|
if (ownerDoc) {
|
|
ownerDoc->AddBlockedNodeByClassifier(element);
|
|
}
|
|
}
|
|
element->NotifyLoadError(
|
|
nsPrintfCString("%u: %s", uint32_t(status), "Request failed"));
|
|
}
|
|
return status;
|
|
}
|
|
|
|
nsCOMPtr<nsIHttpChannel> hc = do_QueryInterface(aRequest);
|
|
bool succeeded;
|
|
if (hc && NS_SUCCEEDED(hc->GetRequestSucceeded(&succeeded)) && !succeeded) {
|
|
uint32_t responseStatus = 0;
|
|
Unused << hc->GetResponseStatus(&responseStatus);
|
|
nsAutoCString statusText;
|
|
Unused << hc->GetResponseStatusText(statusText);
|
|
element->NotifyLoadError(
|
|
nsPrintfCString("%u: %s", responseStatus, statusText.get()));
|
|
|
|
nsAutoString code;
|
|
code.AppendInt(responseStatus);
|
|
nsAutoString src;
|
|
element->GetCurrentSrc(src);
|
|
const char16_t* params[] = {code.get(), src.get()};
|
|
element->ReportLoadError("MediaLoadHttpError", params, ArrayLength(params));
|
|
return NS_BINDING_ABORTED;
|
|
}
|
|
|
|
nsCOMPtr<nsIChannel> channel = do_QueryInterface(aRequest);
|
|
if (channel &&
|
|
NS_SUCCEEDED(rv = element->InitializeDecoderForChannel(
|
|
channel, getter_AddRefs(mNextListener))) &&
|
|
mNextListener) {
|
|
rv = mNextListener->OnStartRequest(aRequest);
|
|
} else {
|
|
// If InitializeDecoderForChannel() returned an error, fire a network error.
|
|
if (NS_FAILED(rv) && !mNextListener) {
|
|
// Load failed, attempt to load the next candidate resource. If there
|
|
// are none, this will trigger a MEDIA_ERR_SRC_NOT_SUPPORTED error.
|
|
element->NotifyLoadError(NS_LITERAL_CSTRING("Failed to init decoder"));
|
|
}
|
|
// If InitializeDecoderForChannel did not return a listener (but may
|
|
// have otherwise succeeded), we abort the connection since we aren't
|
|
// interested in keeping the channel alive ourselves.
|
|
rv = NS_BINDING_ABORTED;
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLMediaElement::MediaLoadListener::OnStopRequest(nsIRequest* aRequest,
|
|
nsresult aStatus) {
|
|
if (mNextListener) {
|
|
return mNextListener->OnStopRequest(aRequest, aStatus);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLMediaElement::MediaLoadListener::OnDataAvailable(nsIRequest* aRequest,
|
|
nsIInputStream* aStream,
|
|
uint64_t aOffset,
|
|
uint32_t aCount) {
|
|
if (!mNextListener) {
|
|
NS_ERROR(
|
|
"Must have a chained listener; OnStartRequest should have "
|
|
"canceled this request");
|
|
return NS_BINDING_ABORTED;
|
|
}
|
|
return mNextListener->OnDataAvailable(aRequest, aStream, aOffset, aCount);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLMediaElement::MediaLoadListener::AsyncOnChannelRedirect(
|
|
nsIChannel* aOldChannel, nsIChannel* aNewChannel, uint32_t aFlags,
|
|
nsIAsyncVerifyRedirectCallback* cb) {
|
|
// TODO is this really correct?? See bug #579329.
|
|
if (mElement) {
|
|
mElement->OnChannelRedirect(aOldChannel, aNewChannel, aFlags);
|
|
}
|
|
nsCOMPtr<nsIChannelEventSink> sink = do_QueryInterface(mNextListener);
|
|
if (sink) {
|
|
return sink->AsyncOnChannelRedirect(aOldChannel, aNewChannel, aFlags, cb);
|
|
}
|
|
cb->OnRedirectVerifyCallback(NS_OK);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLMediaElement::MediaLoadListener::CheckListenerChain() {
|
|
MOZ_ASSERT(mNextListener);
|
|
nsCOMPtr<nsIThreadRetargetableStreamListener> retargetable =
|
|
do_QueryInterface(mNextListener);
|
|
if (retargetable) {
|
|
return retargetable->CheckListenerChain();
|
|
}
|
|
return NS_ERROR_NO_INTERFACE;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLMediaElement::MediaLoadListener::GetInterface(const nsIID& aIID,
|
|
void** aResult) {
|
|
return QueryInterface(aIID, aResult);
|
|
}
|
|
|
|
void HTMLMediaElement::ReportLoadError(const char* aMsg,
|
|
const char16_t** aParams,
|
|
uint32_t aParamCount) {
|
|
ReportToConsole(nsIScriptError::warningFlag, aMsg, aParams, aParamCount);
|
|
}
|
|
|
|
void HTMLMediaElement::ReportToConsole(uint32_t aErrorFlags, const char* aMsg,
|
|
const char16_t** aParams,
|
|
uint32_t aParamCount) const {
|
|
nsContentUtils::ReportToConsole(aErrorFlags, NS_LITERAL_CSTRING("Media"),
|
|
OwnerDoc(), nsContentUtils::eDOM_PROPERTIES,
|
|
aMsg, aParams, aParamCount);
|
|
}
|
|
|
|
class HTMLMediaElement::AudioChannelAgentCallback final
|
|
: public nsIAudioChannelAgentCallback {
|
|
public:
|
|
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
|
|
NS_DECL_CYCLE_COLLECTION_CLASS(AudioChannelAgentCallback)
|
|
|
|
explicit AudioChannelAgentCallback(HTMLMediaElement* aOwner)
|
|
: mOwner(aOwner),
|
|
mAudioChannelVolume(1.0),
|
|
mPlayingThroughTheAudioChannel(false),
|
|
mAudioCapturedByWindow(false),
|
|
mSuspended(nsISuspendedTypes::NONE_SUSPENDED),
|
|
mIsOwnerAudible(IsOwnerAudible()),
|
|
mIsShutDown(false) {
|
|
MOZ_ASSERT(mOwner);
|
|
MaybeCreateAudioChannelAgent();
|
|
}
|
|
|
|
void UpdateAudioChannelPlayingState(bool aForcePlaying = false) {
|
|
MOZ_ASSERT(!mIsShutDown);
|
|
bool playingThroughTheAudioChannel =
|
|
aForcePlaying || IsPlayingThroughTheAudioChannel();
|
|
|
|
if (playingThroughTheAudioChannel != mPlayingThroughTheAudioChannel) {
|
|
if (!MaybeCreateAudioChannelAgent()) {
|
|
return;
|
|
}
|
|
|
|
mPlayingThroughTheAudioChannel = playingThroughTheAudioChannel;
|
|
NotifyAudioChannelAgent(mPlayingThroughTheAudioChannel);
|
|
}
|
|
}
|
|
|
|
bool ShouldResetSuspend() const {
|
|
// The disposable-pause should be clear after media starts playing.
|
|
if (!mOwner->Paused() &&
|
|
mSuspended == nsISuspendedTypes::SUSPENDED_PAUSE_DISPOSABLE) {
|
|
return true;
|
|
}
|
|
|
|
// If the blocked media is paused, we don't need to resume it. We reset the
|
|
// mSuspended in order to unregister the agent.
|
|
if (mOwner->Paused() && mSuspended == nsISuspendedTypes::SUSPENDED_BLOCK) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void NotifyPlayStateChanged() {
|
|
MOZ_ASSERT(!mIsShutDown);
|
|
if (ShouldResetSuspend()) {
|
|
SetSuspended(nsISuspendedTypes::NONE_SUSPENDED);
|
|
NotifyAudioPlaybackChanged(
|
|
AudioChannelService::AudibleChangedReasons::ePauseStateChanged);
|
|
}
|
|
UpdateAudioChannelPlayingState();
|
|
}
|
|
|
|
NS_IMETHODIMP WindowVolumeChanged(float aVolume, bool aMuted) override {
|
|
MOZ_ASSERT(mAudioChannelAgent);
|
|
|
|
MOZ_LOG(
|
|
AudioChannelService::GetAudioChannelLog(), LogLevel::Debug,
|
|
("HTMLMediaElement::AudioChannelAgentCallback, WindowVolumeChanged, "
|
|
"this = %p, aVolume = %f, aMuted = %s\n",
|
|
this, aVolume, aMuted ? "true" : "false"));
|
|
|
|
if (mAudioChannelVolume != aVolume) {
|
|
mAudioChannelVolume = aVolume;
|
|
mOwner->SetVolumeInternal();
|
|
}
|
|
|
|
const uint32_t muted = mOwner->mMuted;
|
|
if (aMuted && !mOwner->ComputedMuted()) {
|
|
mOwner->SetMutedInternal(muted | MUTED_BY_AUDIO_CHANNEL);
|
|
} else if (!aMuted && mOwner->ComputedMuted()) {
|
|
mOwner->SetMutedInternal(muted & ~MUTED_BY_AUDIO_CHANNEL);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP WindowSuspendChanged(SuspendTypes aSuspend) override {
|
|
MOZ_ASSERT(mAudioChannelAgent);
|
|
|
|
MOZ_LOG(
|
|
AudioChannelService::GetAudioChannelLog(), LogLevel::Debug,
|
|
("HTMLMediaElement::AudioChannelAgentCallback, WindowSuspendChanged, "
|
|
"this = %p, aSuspend = %s\n",
|
|
this, SuspendTypeToStr(aSuspend)));
|
|
|
|
switch (aSuspend) {
|
|
case nsISuspendedTypes::NONE_SUSPENDED:
|
|
Resume();
|
|
break;
|
|
case nsISuspendedTypes::SUSPENDED_PAUSE:
|
|
case nsISuspendedTypes::SUSPENDED_PAUSE_DISPOSABLE:
|
|
case nsISuspendedTypes::SUSPENDED_BLOCK:
|
|
Suspend(aSuspend);
|
|
break;
|
|
case nsISuspendedTypes::SUSPENDED_STOP_DISPOSABLE:
|
|
Stop();
|
|
break;
|
|
default:
|
|
MOZ_LOG(AudioChannelService::GetAudioChannelLog(), LogLevel::Debug,
|
|
("HTMLMediaElement::AudioChannelAgentCallback, "
|
|
"WindowSuspendChanged, "
|
|
"this = %p, Error : unknown suspended type!\n",
|
|
this));
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP WindowAudioCaptureChanged(bool aCapture) override {
|
|
MOZ_ASSERT(mAudioChannelAgent);
|
|
|
|
if (mAudioCapturedByWindow != aCapture) {
|
|
mAudioCapturedByWindow = aCapture;
|
|
AudioCaptureStreamChangeIfNeeded();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
void AudioCaptureStreamChangeIfNeeded() {
|
|
MOZ_ASSERT(!mIsShutDown);
|
|
if (!IsPlayingStarted()) {
|
|
return;
|
|
}
|
|
|
|
if (!mOwner->HasAudio()) {
|
|
return;
|
|
}
|
|
|
|
mOwner->AudioCaptureStreamChange(mAudioCapturedByWindow);
|
|
}
|
|
|
|
void NotifyAudioPlaybackChanged(AudibleChangedReasons aReason) {
|
|
MOZ_ASSERT(!mIsShutDown);
|
|
if (!IsPlayingStarted()) {
|
|
return;
|
|
}
|
|
|
|
AudibleState newAudibleState = IsOwnerAudible();
|
|
if (mIsOwnerAudible == newAudibleState) {
|
|
return;
|
|
}
|
|
|
|
mIsOwnerAudible = newAudibleState;
|
|
mAudioChannelAgent->NotifyStartedAudible(mIsOwnerAudible, aReason);
|
|
}
|
|
|
|
bool IsPlaybackBlocked() {
|
|
MOZ_ASSERT(!mIsShutDown);
|
|
// If the tab hasn't been activated yet, the media element in that tab can't
|
|
// be playback now until the tab goes to foreground first time or user
|
|
// clicks the unblocking tab icon.
|
|
if (!IsTabActivated()) {
|
|
// Even we haven't start playing yet, we still need to notify the audio
|
|
// channe system because we need to receive the resume notification later.
|
|
UpdateAudioChannelPlayingState(true /* force to start */);
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void Shutdown() {
|
|
MOZ_ASSERT(!mIsShutDown);
|
|
if (mAudioChannelAgent) {
|
|
mAudioChannelAgent->NotifyStoppedPlaying();
|
|
mAudioChannelAgent = nullptr;
|
|
}
|
|
mIsShutDown = true;
|
|
}
|
|
|
|
float GetEffectiveVolume() const {
|
|
MOZ_ASSERT(!mIsShutDown);
|
|
return mOwner->Volume() * mAudioChannelVolume;
|
|
}
|
|
|
|
SuspendTypes GetSuspendType() const {
|
|
MOZ_ASSERT(!mIsShutDown);
|
|
return mSuspended;
|
|
}
|
|
|
|
private:
|
|
~AudioChannelAgentCallback() { MOZ_ASSERT(mIsShutDown); };
|
|
|
|
bool MaybeCreateAudioChannelAgent() {
|
|
if (mAudioChannelAgent) {
|
|
return true;
|
|
}
|
|
|
|
mAudioChannelAgent = new AudioChannelAgent();
|
|
nsresult rv =
|
|
mAudioChannelAgent->Init(mOwner->OwnerDoc()->GetInnerWindow(), this);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
mAudioChannelAgent = nullptr;
|
|
MOZ_LOG(
|
|
AudioChannelService::GetAudioChannelLog(), LogLevel::Debug,
|
|
("HTMLMediaElement::AudioChannelAgentCallback, Fail to initialize "
|
|
"the audio channel agent, this = %p\n",
|
|
this));
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void NotifyAudioChannelAgent(bool aPlaying) {
|
|
MOZ_ASSERT(mAudioChannelAgent);
|
|
|
|
if (aPlaying) {
|
|
AudioPlaybackConfig config;
|
|
nsresult rv =
|
|
mAudioChannelAgent->NotifyStartedPlaying(&config, IsOwnerAudible());
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return;
|
|
}
|
|
|
|
WindowVolumeChanged(config.mVolume, config.mMuted);
|
|
WindowSuspendChanged(config.mSuspend);
|
|
} else {
|
|
mAudioChannelAgent->NotifyStoppedPlaying();
|
|
}
|
|
}
|
|
|
|
void SetSuspended(SuspendTypes aSuspend) {
|
|
if (mSuspended == aSuspend) {
|
|
return;
|
|
}
|
|
|
|
MaybeNotifyMediaResumed(aSuspend);
|
|
mSuspended = aSuspend;
|
|
MOZ_LOG(AudioChannelService::GetAudioChannelLog(), LogLevel::Debug,
|
|
("HTMLMediaElement::AudioChannelAgentCallback, "
|
|
"SetAudioChannelSuspended, "
|
|
"this = %p, aSuspend = %s\n",
|
|
this, SuspendTypeToStr(aSuspend)));
|
|
}
|
|
|
|
void Resume() {
|
|
if (!IsSuspended()) {
|
|
MOZ_LOG(AudioChannelService::GetAudioChannelLog(), LogLevel::Debug,
|
|
("HTMLMediaElement::AudioChannelAgentCallback, "
|
|
"ResumeFromAudioChannel, "
|
|
"this = %p, don't need to be resumed!\n",
|
|
this));
|
|
return;
|
|
}
|
|
|
|
SetSuspended(nsISuspendedTypes::NONE_SUSPENDED);
|
|
IgnoredErrorResult rv;
|
|
RefPtr<Promise> toBeIgnored = mOwner->Play(rv);
|
|
MOZ_ASSERT_IF(
|
|
toBeIgnored && toBeIgnored->State() == Promise::PromiseState::Rejected,
|
|
rv.Failed());
|
|
if (rv.Failed()) {
|
|
NS_WARNING("Not able to resume from AudioChannel.");
|
|
}
|
|
|
|
NotifyAudioPlaybackChanged(
|
|
AudioChannelService::AudibleChangedReasons::ePauseStateChanged);
|
|
}
|
|
|
|
void Suspend(SuspendTypes aSuspend) {
|
|
if (IsSuspended()) {
|
|
return;
|
|
}
|
|
|
|
SetSuspended(aSuspend);
|
|
if (aSuspend == nsISuspendedTypes::SUSPENDED_PAUSE ||
|
|
aSuspend == nsISuspendedTypes::SUSPENDED_PAUSE_DISPOSABLE) {
|
|
IgnoredErrorResult rv;
|
|
mOwner->Pause(rv);
|
|
if (NS_WARN_IF(rv.Failed())) {
|
|
return;
|
|
}
|
|
}
|
|
NotifyAudioPlaybackChanged(
|
|
AudioChannelService::AudibleChangedReasons::ePauseStateChanged);
|
|
}
|
|
|
|
void Stop() {
|
|
SetSuspended(nsISuspendedTypes::NONE_SUSPENDED);
|
|
mOwner->Pause();
|
|
}
|
|
|
|
bool IsPlayingStarted() {
|
|
if (MaybeCreateAudioChannelAgent()) {
|
|
return mAudioChannelAgent->IsPlayingStarted();
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void MaybeNotifyMediaResumed(SuspendTypes aSuspend) {
|
|
// In fennec, we should send the notification when media is resumed from the
|
|
// pause-disposable which was called by media control.
|
|
if (mSuspended != nsISuspendedTypes::SUSPENDED_PAUSE_DISPOSABLE &&
|
|
aSuspend != nsISuspendedTypes::NONE_SUSPENDED) {
|
|
return;
|
|
}
|
|
|
|
if (!IsPlayingStarted()) {
|
|
return;
|
|
}
|
|
|
|
uint64_t windowID = mAudioChannelAgent->WindowID();
|
|
mOwner->MainThreadEventTarget()->Dispatch(NS_NewRunnableFunction(
|
|
"dom::HTMLMediaElement::AudioChannelAgentCallback::"
|
|
"MaybeNotifyMediaResumed",
|
|
[windowID]() -> void {
|
|
nsCOMPtr<nsIObserverService> observerService =
|
|
services::GetObserverService();
|
|
if (NS_WARN_IF(!observerService)) {
|
|
return;
|
|
}
|
|
|
|
nsCOMPtr<nsISupportsPRUint64> wrapper =
|
|
do_CreateInstance(NS_SUPPORTS_PRUINT64_CONTRACTID);
|
|
if (NS_WARN_IF(!wrapper)) {
|
|
return;
|
|
}
|
|
|
|
wrapper->SetData(windowID);
|
|
observerService->NotifyObservers(wrapper, "media-playback-resumed",
|
|
u"active");
|
|
}));
|
|
}
|
|
|
|
bool IsTabActivated() {
|
|
if (MaybeCreateAudioChannelAgent()) {
|
|
return !mAudioChannelAgent->ShouldBlockMedia();
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool IsSuspended() const {
|
|
return (mSuspended == nsISuspendedTypes::SUSPENDED_PAUSE ||
|
|
mSuspended == nsISuspendedTypes::SUSPENDED_PAUSE_DISPOSABLE ||
|
|
mSuspended == nsISuspendedTypes::SUSPENDED_BLOCK);
|
|
}
|
|
|
|
AudibleState IsOwnerAudible() const {
|
|
// Muted or the volume should not be ~0
|
|
if (mOwner->mMuted || (std::fabs(mOwner->Volume()) <= 1e-7)) {
|
|
return mOwner->HasAudio()
|
|
? AudioChannelService::AudibleState::eMaybeAudible
|
|
: AudioChannelService::AudibleState::eNotAudible;
|
|
}
|
|
|
|
// No audio track.
|
|
if (!mOwner->HasAudio()) {
|
|
return AudioChannelService::AudibleState::eNotAudible;
|
|
}
|
|
|
|
// Might be audible but not yet.
|
|
if (mOwner->HasAudio() && !mOwner->mIsAudioTrackAudible) {
|
|
return AudioChannelService::AudibleState::eMaybeAudible;
|
|
}
|
|
|
|
// Suspended or paused media doesn't produce any sound.
|
|
if (mSuspended != nsISuspendedTypes::NONE_SUSPENDED || mOwner->mPaused) {
|
|
return AudioChannelService::AudibleState::eNotAudible;
|
|
}
|
|
|
|
return AudioChannelService::AudibleState::eAudible;
|
|
}
|
|
|
|
bool IsPlayingThroughTheAudioChannel() const {
|
|
// If we have an error, we are not playing.
|
|
if (mOwner->GetError()) {
|
|
return false;
|
|
}
|
|
|
|
// We should consider any bfcached page or inactive document as non-playing.
|
|
if (!mOwner->IsActive()) {
|
|
return false;
|
|
}
|
|
|
|
// It might be resumed from remote, we should keep the audio channel agent.
|
|
if (IsSuspended()) {
|
|
return true;
|
|
}
|
|
|
|
// Are we paused
|
|
if (mOwner->mPaused) {
|
|
return false;
|
|
}
|
|
|
|
// No audio track
|
|
if (!mOwner->HasAudio()) {
|
|
return false;
|
|
}
|
|
|
|
// A loop always is playing
|
|
if (mOwner->HasAttr(kNameSpaceID_None, nsGkAtoms::loop)) {
|
|
return true;
|
|
}
|
|
|
|
// If we are actually playing...
|
|
if (mOwner->IsCurrentlyPlaying()) {
|
|
return true;
|
|
}
|
|
|
|
// If we are playing an external stream.
|
|
if (mOwner->mSrcAttrStream) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
RefPtr<AudioChannelAgent> mAudioChannelAgent;
|
|
HTMLMediaElement* mOwner;
|
|
|
|
// The audio channel volume
|
|
float mAudioChannelVolume;
|
|
// Is this media element playing?
|
|
bool mPlayingThroughTheAudioChannel;
|
|
// True if the sound is being captured by the window.
|
|
bool mAudioCapturedByWindow;
|
|
// We have different kinds of suspended cases,
|
|
// - SUSPENDED_PAUSE
|
|
// It's used when we temporary lost platform audio focus. MediaElement can
|
|
// only be resumed when we gain the audio focus again.
|
|
// - SUSPENDED_PAUSE_DISPOSABLE
|
|
// It's used when user press the pause button on the remote media-control.
|
|
// MediaElement can be resumed by remote media-control or via play().
|
|
// - SUSPENDED_BLOCK
|
|
// It's used to reduce the power consumption, we won't play the auto-play
|
|
// audio/video in the page we have never visited before. MediaElement would
|
|
// be resumed when the page is active. See bug647429 for more details.
|
|
// - SUSPENDED_STOP_DISPOSABLE
|
|
// When we permanently lost platform audio focus, we should stop playing
|
|
// and stop the audio channel agent. MediaElement can only be restarted by
|
|
// play().
|
|
SuspendTypes mSuspended;
|
|
// Indicate whether media element is audible for users.
|
|
AudibleState mIsOwnerAudible;
|
|
bool mIsShutDown;
|
|
};
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_CLASS(HTMLMediaElement::AudioChannelAgentCallback)
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(
|
|
HTMLMediaElement::AudioChannelAgentCallback)
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mAudioChannelAgent)
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(
|
|
HTMLMediaElement::AudioChannelAgentCallback)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mAudioChannelAgent)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
|
|
|
|
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(
|
|
HTMLMediaElement::AudioChannelAgentCallback)
|
|
NS_INTERFACE_MAP_ENTRY(nsIAudioChannelAgentCallback)
|
|
NS_INTERFACE_MAP_END
|
|
|
|
NS_IMPL_CYCLE_COLLECTING_ADDREF(HTMLMediaElement::AudioChannelAgentCallback)
|
|
NS_IMPL_CYCLE_COLLECTING_RELEASE(HTMLMediaElement::AudioChannelAgentCallback)
|
|
|
|
class HTMLMediaElement::ChannelLoader final {
|
|
public:
|
|
NS_INLINE_DECL_REFCOUNTING(ChannelLoader);
|
|
|
|
void LoadInternal(HTMLMediaElement* aElement) {
|
|
if (mCancelled) {
|
|
return;
|
|
}
|
|
|
|
// determine what security checks need to be performed in AsyncOpen().
|
|
nsSecurityFlags securityFlags =
|
|
aElement->ShouldCheckAllowOrigin()
|
|
? nsILoadInfo::SEC_REQUIRE_CORS_DATA_INHERITS
|
|
: nsILoadInfo::SEC_ALLOW_CROSS_ORIGIN_DATA_INHERITS;
|
|
|
|
if (aElement->GetCORSMode() == CORS_USE_CREDENTIALS) {
|
|
securityFlags |= nsILoadInfo::SEC_COOKIES_INCLUDE;
|
|
}
|
|
|
|
MOZ_ASSERT(
|
|
aElement->IsAnyOfHTMLElements(nsGkAtoms::audio, nsGkAtoms::video));
|
|
nsContentPolicyType contentPolicyType =
|
|
aElement->IsHTMLElement(nsGkAtoms::audio)
|
|
? nsIContentPolicy::TYPE_INTERNAL_AUDIO
|
|
: nsIContentPolicy::TYPE_INTERNAL_VIDEO;
|
|
|
|
// If aElement has 'triggeringprincipal' attribute, we will use the value as
|
|
// triggeringPrincipal for the channel, otherwise it will default to use
|
|
// aElement->NodePrincipal().
|
|
// This function returns true when aElement has 'triggeringprincipal', so if
|
|
// setAttrs is true we will override the origin attributes on the channel
|
|
// later.
|
|
nsCOMPtr<nsIPrincipal> triggeringPrincipal;
|
|
bool setAttrs = nsContentUtils::QueryTriggeringPrincipal(
|
|
aElement, aElement->mLoadingSrcTriggeringPrincipal,
|
|
getter_AddRefs(triggeringPrincipal));
|
|
|
|
nsCOMPtr<nsILoadGroup> loadGroup = aElement->GetDocumentLoadGroup();
|
|
nsCOMPtr<nsIChannel> channel;
|
|
nsresult rv = NS_NewChannelWithTriggeringPrincipal(
|
|
getter_AddRefs(channel), aElement->mLoadingSrc,
|
|
static_cast<Element*>(aElement), triggeringPrincipal, securityFlags,
|
|
contentPolicyType,
|
|
nullptr, // aPerformanceStorage
|
|
loadGroup,
|
|
nullptr, // aCallbacks
|
|
nsICachingChannel::LOAD_BYPASS_LOCAL_CACHE_IF_BUSY |
|
|
nsIChannel::LOAD_MEDIA_SNIFFER_OVERRIDES_CONTENT_TYPE |
|
|
nsIChannel::LOAD_CALL_CONTENT_SNIFFERS);
|
|
|
|
if (NS_FAILED(rv)) {
|
|
// Notify load error so the element will try next resource candidate.
|
|
aElement->NotifyLoadError(NS_LITERAL_CSTRING("Fail to create channel"));
|
|
return;
|
|
}
|
|
|
|
if (setAttrs) {
|
|
nsCOMPtr<nsILoadInfo> loadInfo = channel->LoadInfo();
|
|
// The function simply returns NS_OK, so we ignore the return value.
|
|
Unused << loadInfo->SetOriginAttributes(
|
|
triggeringPrincipal->OriginAttributesRef());
|
|
}
|
|
|
|
nsCOMPtr<nsIClassOfService> cos(do_QueryInterface(channel));
|
|
if (cos) {
|
|
if (aElement->mUseUrgentStartForChannel) {
|
|
cos->AddClassFlags(nsIClassOfService::UrgentStart);
|
|
|
|
// Reset the flag to avoid loading again without initiated by user
|
|
// interaction.
|
|
aElement->mUseUrgentStartForChannel = false;
|
|
}
|
|
|
|
// Unconditionally disable throttling since we want the media to fluently
|
|
// play even when we switch the tab to background.
|
|
cos->AddClassFlags(nsIClassOfService::DontThrottle);
|
|
}
|
|
|
|
// The listener holds a strong reference to us. This creates a
|
|
// reference cycle, once we've set mChannel, which is manually broken
|
|
// in the listener's OnStartRequest method after it is finished with
|
|
// the element. The cycle will also be broken if we get a shutdown
|
|
// notification before OnStartRequest fires. Necko guarantees that
|
|
// OnStartRequest will eventually fire if we don't shut down first.
|
|
RefPtr<MediaLoadListener> loadListener = new MediaLoadListener(aElement);
|
|
|
|
channel->SetNotificationCallbacks(loadListener);
|
|
|
|
nsCOMPtr<nsIHttpChannel> hc = do_QueryInterface(channel);
|
|
if (hc) {
|
|
// Use a byte range request from the start of the resource.
|
|
// This enables us to detect if the stream supports byte range
|
|
// requests, and therefore seeking, early.
|
|
rv = hc->SetRequestHeader(NS_LITERAL_CSTRING("Range"),
|
|
NS_LITERAL_CSTRING("bytes=0-"), false);
|
|
MOZ_ASSERT(NS_SUCCEEDED(rv));
|
|
aElement->SetRequestHeaders(hc);
|
|
}
|
|
|
|
rv = channel->AsyncOpen(loadListener);
|
|
if (NS_FAILED(rv)) {
|
|
// Notify load error so the element will try next resource candidate.
|
|
aElement->NotifyLoadError(NS_LITERAL_CSTRING("Failed to open channel"));
|
|
return;
|
|
}
|
|
|
|
// Else the channel must be open and starting to download. If it encounters
|
|
// a non-catastrophic failure, it will set a new task to continue loading
|
|
// another candidate. It's safe to set it as mChannel now.
|
|
mChannel = channel;
|
|
|
|
// loadListener will be unregistered either on shutdown or when
|
|
// OnStartRequest for the channel we just opened fires.
|
|
nsContentUtils::RegisterShutdownObserver(loadListener);
|
|
}
|
|
|
|
nsresult Load(HTMLMediaElement* aElement) {
|
|
MOZ_ASSERT(aElement);
|
|
// Per bug 1235183 comment 8, we can't spin the event loop from stable
|
|
// state. Defer NS_NewChannel() to a new regular runnable.
|
|
return aElement->MainThreadEventTarget()->Dispatch(
|
|
NewRunnableMethod<HTMLMediaElement*>("ChannelLoader::LoadInternal",
|
|
this, &ChannelLoader::LoadInternal,
|
|
aElement));
|
|
}
|
|
|
|
void Cancel() {
|
|
mCancelled = true;
|
|
if (mChannel) {
|
|
mChannel->Cancel(NS_BINDING_ABORTED);
|
|
mChannel = nullptr;
|
|
}
|
|
}
|
|
|
|
void Done() {
|
|
MOZ_ASSERT(mChannel);
|
|
// Decoder successfully created, the decoder now owns the MediaResource
|
|
// which owns the channel.
|
|
mChannel = nullptr;
|
|
}
|
|
|
|
nsresult Redirect(nsIChannel* aChannel, nsIChannel* aNewChannel,
|
|
uint32_t aFlags) {
|
|
NS_ASSERTION(aChannel == mChannel, "Channels should match!");
|
|
mChannel = aNewChannel;
|
|
|
|
// Handle forwarding of Range header so that the intial detection
|
|
// of seeking support (via result code 206) works across redirects.
|
|
nsCOMPtr<nsIHttpChannel> http = do_QueryInterface(aChannel);
|
|
NS_ENSURE_STATE(http);
|
|
|
|
NS_NAMED_LITERAL_CSTRING(rangeHdr, "Range");
|
|
|
|
nsAutoCString rangeVal;
|
|
if (NS_SUCCEEDED(http->GetRequestHeader(rangeHdr, rangeVal))) {
|
|
NS_ENSURE_STATE(!rangeVal.IsEmpty());
|
|
|
|
http = do_QueryInterface(aNewChannel);
|
|
NS_ENSURE_STATE(http);
|
|
|
|
nsresult rv = http->SetRequestHeader(rangeHdr, rangeVal, false);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
private:
|
|
~ChannelLoader() { MOZ_ASSERT(!mChannel); }
|
|
// Holds a reference to the first channel we open to the media resource.
|
|
// Once the decoder is created, control over the channel passes to the
|
|
// decoder, and we null out this reference. We must store this in case
|
|
// we need to cancel the channel before control of it passes to the decoder.
|
|
nsCOMPtr<nsIChannel> mChannel;
|
|
|
|
bool mCancelled = false;
|
|
};
|
|
|
|
class HTMLMediaElement::ErrorSink {
|
|
public:
|
|
explicit ErrorSink(HTMLMediaElement* aOwner) : mOwner(aOwner) {
|
|
MOZ_ASSERT(mOwner);
|
|
}
|
|
|
|
void SetError(uint16_t aErrorCode, const nsACString& aErrorDetails) {
|
|
// Since we have multiple paths calling into DecodeError, e.g.
|
|
// MediaKeys::Terminated and EMEH264Decoder::Error. We should take the 1st
|
|
// one only in order not to fire multiple 'error' events.
|
|
if (mError) {
|
|
return;
|
|
}
|
|
|
|
if (!IsValidErrorCode(aErrorCode)) {
|
|
NS_ASSERTION(false, "Undefined MediaError codes!");
|
|
return;
|
|
}
|
|
|
|
mError = new MediaError(mOwner, aErrorCode, aErrorDetails);
|
|
mOwner->DispatchAsyncEvent(NS_LITERAL_STRING("error"));
|
|
if (mOwner->ReadyState() == HAVE_NOTHING &&
|
|
aErrorCode == MEDIA_ERR_ABORTED) {
|
|
// https://html.spec.whatwg.org/multipage/embedded-content.html#media-data-processing-steps-list
|
|
// "If the media data fetching process is aborted by the user"
|
|
mOwner->DispatchAsyncEvent(NS_LITERAL_STRING("abort"));
|
|
mOwner->ChangeNetworkState(NETWORK_EMPTY);
|
|
mOwner->DispatchAsyncEvent(NS_LITERAL_STRING("emptied"));
|
|
if (mOwner->mDecoder) {
|
|
mOwner->ShutdownDecoder();
|
|
}
|
|
} else if (aErrorCode == MEDIA_ERR_SRC_NOT_SUPPORTED) {
|
|
mOwner->ChangeNetworkState(NETWORK_NO_SOURCE);
|
|
} else {
|
|
mOwner->ChangeNetworkState(NETWORK_IDLE);
|
|
}
|
|
}
|
|
|
|
void ResetError() { mError = nullptr; }
|
|
|
|
RefPtr<MediaError> mError;
|
|
|
|
private:
|
|
bool IsValidErrorCode(const uint16_t& aErrorCode) const {
|
|
return (aErrorCode == MEDIA_ERR_DECODE || aErrorCode == MEDIA_ERR_NETWORK ||
|
|
aErrorCode == MEDIA_ERR_ABORTED ||
|
|
aErrorCode == MEDIA_ERR_SRC_NOT_SUPPORTED);
|
|
}
|
|
|
|
// Media elememt's life cycle would be longer than error sink, so we use the
|
|
// raw pointer and this class would only be referenced by media element.
|
|
HTMLMediaElement* mOwner;
|
|
};
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_CLASS(HTMLMediaElement)
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(HTMLMediaElement,
|
|
nsGenericHTMLElement)
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mMediaSource)
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mSrcMediaSource)
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mSrcStream)
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mSrcAttrStream)
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mSourcePointer)
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mLoadBlockedDoc)
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mSourceLoadCandidate)
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mAudioChannelWrapper)
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mErrorSink->mError)
|
|
for (uint32_t i = 0; i < tmp->mOutputStreams.Length(); ++i) {
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mOutputStreams[i].mStream)
|
|
}
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mPlayed);
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mTextTrackManager)
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mAudioTrackList)
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mVideoTrackList)
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mMediaKeys)
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mIncomingMediaKeys)
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mSelectedVideoStreamTrack)
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mPendingPlayPromises)
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mSeekDOMPromise)
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mSetMediaKeysDOMPromise)
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(HTMLMediaElement,
|
|
nsGenericHTMLElement)
|
|
tmp->RemoveMutationObserver(tmp);
|
|
if (tmp->mSrcStream) {
|
|
// Need to EndMediaStreamPlayback to clear mSrcStream and make sure
|
|
// everything gets unhooked correctly.
|
|
tmp->EndSrcMediaStreamPlayback();
|
|
}
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mSrcAttrStream)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mMediaSource)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mSrcMediaSource)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mSourcePointer)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mLoadBlockedDoc)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mSourceLoadCandidate)
|
|
if (tmp->mAudioChannelWrapper) {
|
|
tmp->mAudioChannelWrapper->Shutdown();
|
|
}
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mAudioChannelWrapper)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mErrorSink->mError)
|
|
for (OutputMediaStream& s : tmp->mOutputStreams) {
|
|
s.mStream->SetFinishedOnInactive(true);
|
|
}
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mOutputStreams)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mPlayed)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mTextTrackManager)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mAudioTrackList)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mVideoTrackList)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mMediaKeys)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mIncomingMediaKeys)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mSelectedVideoStreamTrack)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mPendingPlayPromises)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mSeekDOMPromise)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mSetMediaKeysDOMPromise)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
|
|
|
|
NS_IMPL_ISUPPORTS_CYCLE_COLLECTION_INHERITED_0(HTMLMediaElement,
|
|
nsGenericHTMLElement)
|
|
|
|
void HTMLMediaElement::ContentRemoved(nsIContent* aChild,
|
|
nsIContent* aPreviousSibling) {
|
|
if (aChild == mSourcePointer) {
|
|
mSourcePointer = aPreviousSibling;
|
|
}
|
|
}
|
|
|
|
already_AddRefed<MediaSource> HTMLMediaElement::GetMozMediaSourceObject()
|
|
const {
|
|
RefPtr<MediaSource> source = mMediaSource;
|
|
return source.forget();
|
|
}
|
|
|
|
void HTMLMediaElement::GetMozDebugReaderData(nsAString& aString) {
|
|
if (mDecoder && !mSrcStream) {
|
|
nsAutoCString result;
|
|
mDecoder->GetMozDebugReaderData(result);
|
|
CopyUTF8toUTF16(result, aString);
|
|
}
|
|
}
|
|
|
|
already_AddRefed<Promise> HTMLMediaElement::MozRequestDebugInfo(
|
|
ErrorResult& aRv) {
|
|
RefPtr<Promise> promise = CreateDOMPromise(aRv);
|
|
if (NS_WARN_IF(aRv.Failed())) {
|
|
return nullptr;
|
|
}
|
|
|
|
nsAutoString result;
|
|
GetMozDebugReaderData(result);
|
|
|
|
if (mVideoFrameContainer) {
|
|
result.AppendPrintf(
|
|
"Compositor dropped frame(including when element's invisible): %u\n",
|
|
mVideoFrameContainer->GetDroppedImageCount());
|
|
}
|
|
|
|
if (mMediaKeys) {
|
|
nsString EMEInfo;
|
|
GetEMEInfo(EMEInfo);
|
|
result.AppendLiteral("EME Info: ");
|
|
result.Append(EMEInfo);
|
|
result.AppendLiteral("\n");
|
|
}
|
|
|
|
if (mDecoder) {
|
|
mDecoder->RequestDebugInfo()->Then(
|
|
mAbstractMainThread, __func__,
|
|
[promise, result](const nsACString& aString) {
|
|
promise->MaybeResolve(result + NS_ConvertUTF8toUTF16(aString));
|
|
},
|
|
[promise, result]() { promise->MaybeResolve(result); });
|
|
} else {
|
|
promise->MaybeResolve(result);
|
|
}
|
|
|
|
return promise.forget();
|
|
}
|
|
|
|
/* static */
|
|
void HTMLMediaElement::MozEnableDebugLog(const GlobalObject&) {
|
|
DecoderDoctorLogger::EnableLogging();
|
|
}
|
|
|
|
already_AddRefed<Promise> HTMLMediaElement::MozRequestDebugLog(
|
|
ErrorResult& aRv) {
|
|
RefPtr<Promise> promise = CreateDOMPromise(aRv);
|
|
if (NS_WARN_IF(aRv.Failed())) {
|
|
return nullptr;
|
|
}
|
|
|
|
DecoderDoctorLogger::RetrieveMessages(this)->Then(
|
|
mAbstractMainThread, __func__,
|
|
[promise](const nsACString& aString) {
|
|
promise->MaybeResolve(NS_ConvertUTF8toUTF16(aString));
|
|
},
|
|
[promise](nsresult rv) { promise->MaybeReject(rv); });
|
|
|
|
return promise.forget();
|
|
}
|
|
|
|
already_AddRefed<Promise> HTMLMediaElement::MozDumpDebugInfo() {
|
|
ErrorResult rv;
|
|
RefPtr<Promise> promise = CreateDOMPromise(rv);
|
|
if (NS_WARN_IF(rv.Failed())) {
|
|
return nullptr;
|
|
}
|
|
if (mDecoder) {
|
|
mDecoder->DumpDebugInfo()->Then(mAbstractMainThread, __func__,
|
|
promise.get(),
|
|
&Promise::MaybeResolveWithUndefined);
|
|
} else {
|
|
promise->MaybeResolveWithUndefined();
|
|
}
|
|
return promise.forget();
|
|
}
|
|
|
|
void HTMLMediaElement::SetVisible(bool aVisible) {
|
|
mForcedHidden = !aVisible;
|
|
if (mDecoder) {
|
|
mDecoder->SetForcedHidden(!aVisible);
|
|
}
|
|
}
|
|
|
|
bool HTMLMediaElement::IsVideoDecodingSuspended() const {
|
|
return mDecoder && mDecoder->IsVideoDecodingSuspended();
|
|
}
|
|
|
|
bool HTMLMediaElement::IsVisible() const {
|
|
return mVisibilityState == Visibility::ApproximatelyVisible;
|
|
}
|
|
|
|
already_AddRefed<layers::Image> HTMLMediaElement::GetCurrentImage() {
|
|
MarkAsTainted();
|
|
|
|
// TODO: In bug 1345404, handle case when video decoder is already suspended.
|
|
ImageContainer* container = GetImageContainer();
|
|
if (!container) {
|
|
return nullptr;
|
|
}
|
|
|
|
AutoLockImage lockImage(container);
|
|
RefPtr<layers::Image> image = lockImage.GetImage(TimeStamp::Now());
|
|
return image.forget();
|
|
}
|
|
|
|
bool HTMLMediaElement::HasSuspendTaint() const {
|
|
MOZ_ASSERT(!mDecoder || (mDecoder->HasSuspendTaint() == mHasSuspendTaint));
|
|
return mHasSuspendTaint;
|
|
}
|
|
|
|
already_AddRefed<DOMMediaStream> HTMLMediaElement::GetSrcObject() const {
|
|
NS_ASSERTION(!mSrcAttrStream || mSrcAttrStream->GetPlaybackStream(),
|
|
"MediaStream should have been set up properly");
|
|
RefPtr<DOMMediaStream> stream = mSrcAttrStream;
|
|
return stream.forget();
|
|
}
|
|
|
|
void HTMLMediaElement::SetSrcObject(DOMMediaStream& aValue) {
|
|
SetSrcObject(&aValue);
|
|
}
|
|
|
|
void HTMLMediaElement::SetSrcObject(DOMMediaStream* aValue) {
|
|
mSrcAttrStream = aValue;
|
|
UpdateAudioChannelPlayingState();
|
|
DoLoad();
|
|
}
|
|
|
|
bool HTMLMediaElement::Ended() {
|
|
return (mDecoder && mDecoder->IsEnded()) ||
|
|
(mSrcStream && mSrcStreamPlaybackEnded);
|
|
}
|
|
|
|
void HTMLMediaElement::GetCurrentSrc(nsAString& aCurrentSrc) {
|
|
nsAutoCString src;
|
|
GetCurrentSpec(src);
|
|
CopyUTF8toUTF16(src, aCurrentSrc);
|
|
}
|
|
|
|
nsresult HTMLMediaElement::OnChannelRedirect(nsIChannel* aChannel,
|
|
nsIChannel* aNewChannel,
|
|
uint32_t aFlags) {
|
|
MOZ_ASSERT(mChannelLoader);
|
|
return mChannelLoader->Redirect(aChannel, aNewChannel, aFlags);
|
|
}
|
|
|
|
void HTMLMediaElement::ShutdownDecoder() {
|
|
RemoveMediaElementFromURITable();
|
|
NS_ASSERTION(mDecoder, "Must have decoder to shut down");
|
|
|
|
mWaitingForKeyListener.DisconnectIfExists();
|
|
if (mMediaSource) {
|
|
mMediaSource->CompletePendingTransactions();
|
|
}
|
|
if (!mOutputStreams.IsEmpty()) {
|
|
mNextAvailableMediaDecoderOutputTrackID =
|
|
mDecoder->GetNextOutputStreamTrackID();
|
|
}
|
|
mDecoder->Shutdown();
|
|
DDUNLINKCHILD(mDecoder.get());
|
|
mDecoder = nullptr;
|
|
ReportAudioTrackSilenceProportionTelemetry();
|
|
}
|
|
|
|
void HTMLMediaElement::ReportPlayedTimeAfterBlockedTelemetry() {
|
|
if (!mHasPlayEverBeenBlocked) {
|
|
return;
|
|
}
|
|
mHasPlayEverBeenBlocked = false;
|
|
|
|
const double playTimeThreshold = 7.0;
|
|
const double playTimeAfterBlocked = mCurrentLoadPlayTime.Total();
|
|
if (playTimeAfterBlocked <= 0.0) {
|
|
return;
|
|
}
|
|
|
|
const bool isDurationLessThanTimeThresholdAndMediaPlayedToTheEnd =
|
|
Duration() < playTimeThreshold && Ended();
|
|
LOG(LogLevel::Debug, ("%p PLAYED_TIME_AFTER_AUTOPLAY_BLOCKED=%f, isVideo=%d",
|
|
this, playTimeAfterBlocked, IsVideo()));
|
|
if (IsVideo() && playTimeAfterBlocked >= playTimeThreshold) {
|
|
AccumulateCategorical(
|
|
mozilla::Telemetry::LABELS_MEDIA_PLAYED_TIME_AFTER_AUTOPLAY_BLOCKED::
|
|
VPlayedMoreThan7s);
|
|
} else if (IsVideo() && playTimeAfterBlocked < playTimeThreshold) {
|
|
if (isDurationLessThanTimeThresholdAndMediaPlayedToTheEnd) {
|
|
AccumulateCategorical(
|
|
mozilla::Telemetry::LABELS_MEDIA_PLAYED_TIME_AFTER_AUTOPLAY_BLOCKED::
|
|
VPlayedToTheEnd);
|
|
} else {
|
|
AccumulateCategorical(
|
|
mozilla::Telemetry::LABELS_MEDIA_PLAYED_TIME_AFTER_AUTOPLAY_BLOCKED::
|
|
VPlayedLessThan7s);
|
|
}
|
|
} else if (!IsVideo() && playTimeAfterBlocked >= playTimeThreshold) {
|
|
AccumulateCategorical(
|
|
mozilla::Telemetry::LABELS_MEDIA_PLAYED_TIME_AFTER_AUTOPLAY_BLOCKED::
|
|
APlayedMoreThan7s);
|
|
} else if (!IsVideo() && playTimeAfterBlocked < playTimeThreshold) {
|
|
if (isDurationLessThanTimeThresholdAndMediaPlayedToTheEnd) {
|
|
AccumulateCategorical(
|
|
mozilla::Telemetry::LABELS_MEDIA_PLAYED_TIME_AFTER_AUTOPLAY_BLOCKED::
|
|
APlayedToTheEnd);
|
|
} else {
|
|
AccumulateCategorical(
|
|
mozilla::Telemetry::LABELS_MEDIA_PLAYED_TIME_AFTER_AUTOPLAY_BLOCKED::
|
|
APlayedLessThan7s);
|
|
}
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::AbortExistingLoads() {
|
|
// Abort any already-running instance of the resource selection algorithm.
|
|
mLoadWaitStatus = NOT_WAITING;
|
|
|
|
// Set a new load ID. This will cause events which were enqueued
|
|
// with a different load ID to silently be cancelled.
|
|
mCurrentLoadID++;
|
|
|
|
// Immediately reject or resolve the already-dispatched
|
|
// nsResolveOrRejectPendingPlayPromisesRunners. These runners won't be
|
|
// executed again later since the mCurrentLoadID had been changed.
|
|
for (auto& runner : mPendingPlayPromisesRunners) {
|
|
runner->ResolveOrReject();
|
|
}
|
|
mPendingPlayPromisesRunners.Clear();
|
|
|
|
if (mChannelLoader) {
|
|
mChannelLoader->Cancel();
|
|
mChannelLoader = nullptr;
|
|
}
|
|
|
|
bool fireTimeUpdate = false;
|
|
|
|
// We need to remove VideoFrameListener before VideoTracks get emptied.
|
|
if (mVideoFrameListener) {
|
|
mSelectedVideoStreamTrack->RemoveDirectListener(mVideoFrameListener);
|
|
mVideoFrameListener->Forget();
|
|
mVideoFrameListener = nullptr;
|
|
}
|
|
|
|
// When aborting the existing loads, empty the objects in audio track list and
|
|
// video track list, no events (in particular, no removetrack events) are
|
|
// fired as part of this. Ending MediaStream sends track ended notifications,
|
|
// so we empty the track lists prior.
|
|
if (AudioTracks()) {
|
|
AudioTracks()->EmptyTracks();
|
|
}
|
|
if (VideoTracks()) {
|
|
VideoTracks()->EmptyTracks();
|
|
}
|
|
|
|
if (mDecoder) {
|
|
fireTimeUpdate = mDecoder->GetCurrentTime() != 0.0;
|
|
ShutdownDecoder();
|
|
}
|
|
if (mSrcStream) {
|
|
EndSrcMediaStreamPlayback();
|
|
}
|
|
|
|
RemoveMediaElementFromURITable();
|
|
mLoadingSrc = nullptr;
|
|
mLoadingSrcTriggeringPrincipal = nullptr;
|
|
DDLOG(DDLogCategory::Property, "loading_src", "");
|
|
DDUNLINKCHILD(mMediaSource.get());
|
|
mMediaSource = nullptr;
|
|
|
|
if (mNetworkState == NETWORK_LOADING || mNetworkState == NETWORK_IDLE) {
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("abort"));
|
|
}
|
|
|
|
mErrorSink->ResetError();
|
|
mCurrentPlayRangeStart = -1.0;
|
|
mLoadedDataFired = false;
|
|
mAutoplaying = true;
|
|
mIsLoadingFromSourceChildren = false;
|
|
mSuspendedAfterFirstFrame = false;
|
|
mAllowSuspendAfterFirstFrame = true;
|
|
mHaveQueuedSelectResource = false;
|
|
mSuspendedForPreloadNone = false;
|
|
mDownloadSuspendedByCache = false;
|
|
mMediaInfo = MediaInfo();
|
|
mIsEncrypted = false;
|
|
mPendingEncryptedInitData.Reset();
|
|
mWaitingForKey = NOT_WAITING_FOR_KEY;
|
|
mSourcePointer = nullptr;
|
|
mBlockedAsWithoutMetadata = false;
|
|
|
|
mTags = nullptr;
|
|
mAudioTrackSilenceStartedTime = 0.0;
|
|
|
|
if (mNetworkState != NETWORK_EMPTY) {
|
|
NS_ASSERTION(!mDecoder && !mSrcStream,
|
|
"How did someone setup a new stream/decoder already?");
|
|
// ChangeNetworkState() will call UpdateAudioChannelPlayingState()
|
|
// indirectly which depends on mPaused. So we need to update mPaused first.
|
|
if (!mPaused) {
|
|
mPaused = true;
|
|
RejectPromises(TakePendingPlayPromises(), NS_ERROR_DOM_MEDIA_ABORT_ERR);
|
|
}
|
|
ChangeNetworkState(NETWORK_EMPTY);
|
|
ChangeReadyState(HAVE_NOTHING);
|
|
|
|
// TODO: Apply the rules for text track cue rendering Bug 865407
|
|
if (mTextTrackManager) {
|
|
mTextTrackManager->GetTextTracks()->SetCuesInactive();
|
|
}
|
|
|
|
if (fireTimeUpdate) {
|
|
// Since we destroyed the decoder above, the current playback position
|
|
// will now be reported as 0. The playback position was non-zero when
|
|
// we destroyed the decoder, so fire a timeupdate event so that the
|
|
// change will be reflected in the controls.
|
|
FireTimeUpdate(false);
|
|
}
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("emptied"));
|
|
UpdateAudioChannelPlayingState();
|
|
}
|
|
|
|
// We may have changed mPaused, mAutoplaying, and other
|
|
// things which can affect AddRemoveSelfReference
|
|
AddRemoveSelfReference();
|
|
|
|
mIsRunningSelectResource = false;
|
|
|
|
mEventDeliveryPaused = false;
|
|
mPendingEvents.Clear();
|
|
mCurrentLoadPlayTime.Reset();
|
|
|
|
AssertReadyStateIsNothing();
|
|
}
|
|
|
|
void HTMLMediaElement::NoSupportedMediaSourceError(
|
|
const nsACString& aErrorDetails) {
|
|
if (mDecoder) {
|
|
ShutdownDecoder();
|
|
}
|
|
mErrorSink->SetError(MEDIA_ERR_SRC_NOT_SUPPORTED, aErrorDetails);
|
|
ChangeDelayLoadStatus(false);
|
|
UpdateAudioChannelPlayingState();
|
|
RejectPromises(TakePendingPlayPromises(),
|
|
NS_ERROR_DOM_MEDIA_NOT_SUPPORTED_ERR);
|
|
}
|
|
|
|
typedef void (HTMLMediaElement::*SyncSectionFn)();
|
|
|
|
// Runs a "synchronous section", a function that must run once the event loop
|
|
// has reached a "stable state". See:
|
|
// http://www.whatwg.org/specs/web-apps/current-work/multipage/webappapis.html#synchronous-section
|
|
class nsSyncSection : public nsMediaEvent {
|
|
private:
|
|
nsCOMPtr<nsIRunnable> mRunnable;
|
|
|
|
public:
|
|
nsSyncSection(HTMLMediaElement* aElement, nsIRunnable* aRunnable)
|
|
: nsMediaEvent("dom::nsSyncSection", aElement), mRunnable(aRunnable) {}
|
|
|
|
NS_IMETHOD Run() override {
|
|
// Silently cancel if our load has been cancelled.
|
|
if (IsCancelled()) return NS_OK;
|
|
mRunnable->Run();
|
|
return NS_OK;
|
|
}
|
|
};
|
|
|
|
void HTMLMediaElement::RunInStableState(nsIRunnable* aRunnable) {
|
|
if (mShuttingDown) {
|
|
return;
|
|
}
|
|
|
|
nsCOMPtr<nsIRunnable> event = new nsSyncSection(this, aRunnable);
|
|
nsContentUtils::RunInStableState(event.forget());
|
|
}
|
|
|
|
void HTMLMediaElement::QueueLoadFromSourceTask() {
|
|
if (!mIsLoadingFromSourceChildren || mShuttingDown) {
|
|
return;
|
|
}
|
|
|
|
if (mDecoder) {
|
|
// Reset readyState to HAVE_NOTHING since we're going to load a new decoder.
|
|
ShutdownDecoder();
|
|
ChangeReadyState(HAVE_NOTHING);
|
|
}
|
|
|
|
AssertReadyStateIsNothing();
|
|
|
|
ChangeDelayLoadStatus(true);
|
|
ChangeNetworkState(NETWORK_LOADING);
|
|
RefPtr<Runnable> r =
|
|
NewRunnableMethod("HTMLMediaElement::LoadFromSourceChildren", this,
|
|
&HTMLMediaElement::LoadFromSourceChildren);
|
|
RunInStableState(r);
|
|
}
|
|
|
|
void HTMLMediaElement::QueueSelectResourceTask() {
|
|
// Don't allow multiple async select resource calls to be queued.
|
|
if (mHaveQueuedSelectResource) return;
|
|
mHaveQueuedSelectResource = true;
|
|
ChangeNetworkState(NETWORK_NO_SOURCE);
|
|
RefPtr<Runnable> r =
|
|
NewRunnableMethod("HTMLMediaElement::SelectResourceWrapper", this,
|
|
&HTMLMediaElement::SelectResourceWrapper);
|
|
RunInStableState(r);
|
|
}
|
|
|
|
static bool HasSourceChildren(nsIContent* aElement) {
|
|
for (nsIContent* child = aElement->GetFirstChild(); child;
|
|
child = child->GetNextSibling()) {
|
|
if (child->IsHTMLElement(nsGkAtoms::source)) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
static nsCString DocumentOrigin(Document* aDoc) {
|
|
if (!aDoc) {
|
|
return NS_LITERAL_CSTRING("null");
|
|
}
|
|
nsCOMPtr<nsIPrincipal> principal = aDoc->NodePrincipal();
|
|
if (!principal) {
|
|
return NS_LITERAL_CSTRING("null");
|
|
}
|
|
nsCString origin;
|
|
if (NS_FAILED(principal->GetOrigin(origin))) {
|
|
return NS_LITERAL_CSTRING("null");
|
|
}
|
|
return origin;
|
|
}
|
|
|
|
void HTMLMediaElement::Load() {
|
|
LOG(LogLevel::Debug,
|
|
("%p Load() hasSrcAttrStream=%d hasSrcAttr=%d hasSourceChildren=%d "
|
|
"handlingInput=%d hasAutoplayAttr=%d IsAllowedToPlay=%d "
|
|
"ownerDoc=%p (%s) ownerDocUserActivated=%d "
|
|
"muted=%d volume=%f",
|
|
this, !!mSrcAttrStream, HasAttr(kNameSpaceID_None, nsGkAtoms::src),
|
|
HasSourceChildren(this), EventStateManager::IsHandlingUserInput(),
|
|
HasAttr(kNameSpaceID_None, nsGkAtoms::autoplay),
|
|
AutoplayPolicy::IsAllowedToPlay(*this), OwnerDoc(),
|
|
DocumentOrigin(OwnerDoc()).get(),
|
|
OwnerDoc() ? OwnerDoc()->HasBeenUserGestureActivated() : 0, mMuted,
|
|
mVolume));
|
|
|
|
if (mIsRunningLoadMethod) {
|
|
return;
|
|
}
|
|
|
|
mIsDoingExplicitLoad = true;
|
|
DoLoad();
|
|
}
|
|
|
|
void HTMLMediaElement::DoLoad() {
|
|
// Check if media is allowed for the docshell.
|
|
nsCOMPtr<nsIDocShell> docShell = OwnerDoc()->GetDocShell();
|
|
if (docShell && !docShell->GetAllowMedia()) {
|
|
LOG(LogLevel::Debug, ("%p Media not allowed", this));
|
|
return;
|
|
}
|
|
|
|
if (mIsRunningLoadMethod) {
|
|
return;
|
|
}
|
|
|
|
if (EventStateManager::IsHandlingUserInput()) {
|
|
// Detect if user has interacted with element so that play will not be
|
|
// blocked when initiated by a script. This enables sites to capture user
|
|
// intent to play by calling load() in the click handler of a "catalog
|
|
// view" of a gallery of videos.
|
|
mIsBlessed = true;
|
|
// Mark the channel as urgent-start when autopaly so that it will play the
|
|
// media from src after loading enough resource.
|
|
if (HasAttr(kNameSpaceID_None, nsGkAtoms::autoplay)) {
|
|
mUseUrgentStartForChannel = true;
|
|
}
|
|
}
|
|
|
|
SetPlayedOrSeeked(false);
|
|
mIsRunningLoadMethod = true;
|
|
AbortExistingLoads();
|
|
SetPlaybackRate(mDefaultPlaybackRate, IgnoreErrors());
|
|
QueueSelectResourceTask();
|
|
ResetState();
|
|
mIsRunningLoadMethod = false;
|
|
}
|
|
|
|
void HTMLMediaElement::ResetState() {
|
|
// There might be a pending MediaDecoder::PlaybackPositionChanged() which
|
|
// will overwrite |mMediaInfo.mVideo.mDisplay| in UpdateMediaSize() to give
|
|
// staled videoWidth and videoHeight. We have to call ForgetElement() here
|
|
// such that the staled callbacks won't reach us.
|
|
if (mVideoFrameContainer) {
|
|
mVideoFrameContainer->ForgetElement();
|
|
mVideoFrameContainer = nullptr;
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::SelectResourceWrapper() {
|
|
SelectResource();
|
|
MaybeBeginCloningVisually();
|
|
mIsRunningSelectResource = false;
|
|
mHaveQueuedSelectResource = false;
|
|
mIsDoingExplicitLoad = false;
|
|
}
|
|
|
|
void HTMLMediaElement::SelectResource() {
|
|
if (!mSrcAttrStream && !HasAttr(kNameSpaceID_None, nsGkAtoms::src) &&
|
|
!HasSourceChildren(this)) {
|
|
// The media element has neither a src attribute nor any source
|
|
// element children, abort the load.
|
|
ChangeNetworkState(NETWORK_EMPTY);
|
|
ChangeDelayLoadStatus(false);
|
|
return;
|
|
}
|
|
|
|
ChangeDelayLoadStatus(true);
|
|
|
|
ChangeNetworkState(NETWORK_LOADING);
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("loadstart"));
|
|
|
|
// Delay setting mIsRunningSeletResource until after UpdatePreloadAction
|
|
// so that we don't lose our state change by bailing out of the preload
|
|
// state update
|
|
UpdatePreloadAction();
|
|
mIsRunningSelectResource = true;
|
|
|
|
// If we have a 'src' attribute, use that exclusively.
|
|
nsAutoString src;
|
|
if (mSrcAttrStream) {
|
|
SetupSrcMediaStreamPlayback(mSrcAttrStream);
|
|
} else if (GetAttr(kNameSpaceID_None, nsGkAtoms::src, src)) {
|
|
nsCOMPtr<nsIURI> uri;
|
|
MediaResult rv = NewURIFromString(src, getter_AddRefs(uri));
|
|
if (NS_SUCCEEDED(rv)) {
|
|
LOG(LogLevel::Debug, ("%p Trying load from src=%s", this,
|
|
NS_ConvertUTF16toUTF8(src).get()));
|
|
NS_ASSERTION(
|
|
!mIsLoadingFromSourceChildren,
|
|
"Should think we're not loading from source children by default");
|
|
|
|
RemoveMediaElementFromURITable();
|
|
mLoadingSrc = uri;
|
|
mLoadingSrcTriggeringPrincipal = mSrcAttrTriggeringPrincipal;
|
|
DDLOG(DDLogCategory::Property, "loading_src",
|
|
nsCString(NS_ConvertUTF16toUTF8(src)));
|
|
mMediaSource = mSrcMediaSource;
|
|
DDLINKCHILD("mediasource", mMediaSource.get());
|
|
UpdatePreloadAction();
|
|
if (mPreloadAction == HTMLMediaElement::PRELOAD_NONE && !mMediaSource) {
|
|
// preload:none media, suspend the load here before we make any
|
|
// network requests.
|
|
SuspendLoad();
|
|
return;
|
|
}
|
|
|
|
rv = LoadResource();
|
|
if (NS_SUCCEEDED(rv)) {
|
|
return;
|
|
}
|
|
} else {
|
|
const char16_t* params[] = {src.get()};
|
|
ReportLoadError("MediaLoadInvalidURI", params, ArrayLength(params));
|
|
rv = MediaResult(rv.Code(), "MediaLoadInvalidURI");
|
|
}
|
|
// The media element has neither a src attribute nor a source element child:
|
|
// set the networkState to NETWORK_EMPTY, and abort these steps; the
|
|
// synchronous section ends.
|
|
mMainThreadEventTarget->Dispatch(NewRunnableMethod<nsCString>(
|
|
"HTMLMediaElement::NoSupportedMediaSourceError", this,
|
|
&HTMLMediaElement::NoSupportedMediaSourceError, rv.Description()));
|
|
} else {
|
|
// Otherwise, the source elements will be used.
|
|
mIsLoadingFromSourceChildren = true;
|
|
LoadFromSourceChildren();
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::NotifyLoadError(const nsACString& aErrorDetails) {
|
|
if (!mIsLoadingFromSourceChildren) {
|
|
LOG(LogLevel::Debug, ("NotifyLoadError(), no supported media error"));
|
|
NoSupportedMediaSourceError(aErrorDetails);
|
|
} else if (mSourceLoadCandidate) {
|
|
DispatchAsyncSourceError(mSourceLoadCandidate);
|
|
QueueLoadFromSourceTask();
|
|
} else {
|
|
NS_WARNING("Should know the source we were loading from!");
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::NotifyMediaTrackEnabled(MediaTrack* aTrack) {
|
|
MOZ_ASSERT(aTrack);
|
|
if (!aTrack) {
|
|
return;
|
|
}
|
|
#ifdef DEBUG
|
|
nsString id;
|
|
aTrack->GetId(id);
|
|
|
|
LOG(LogLevel::Debug, ("MediaElement %p %sTrack with id %s enabled", this,
|
|
aTrack->AsAudioTrack() ? "Audio" : "Video",
|
|
NS_ConvertUTF16toUTF8(id).get()));
|
|
#endif
|
|
|
|
MOZ_ASSERT((aTrack->AsAudioTrack() && aTrack->AsAudioTrack()->Enabled()) ||
|
|
(aTrack->AsVideoTrack() && aTrack->AsVideoTrack()->Selected()));
|
|
|
|
if (aTrack->AsAudioTrack()) {
|
|
SetMutedInternal(mMuted & ~MUTED_BY_AUDIO_TRACK);
|
|
} else if (aTrack->AsVideoTrack()) {
|
|
if (!IsVideo()) {
|
|
MOZ_ASSERT(false);
|
|
return;
|
|
}
|
|
mDisableVideo = false;
|
|
} else {
|
|
MOZ_ASSERT(false, "Unknown track type");
|
|
}
|
|
|
|
if (mSrcStream) {
|
|
if (aTrack->AsVideoTrack()) {
|
|
MOZ_ASSERT(!mSelectedVideoStreamTrack);
|
|
MOZ_ASSERT(!mVideoFrameListener);
|
|
|
|
mSelectedVideoStreamTrack = aTrack->AsVideoTrack()->GetVideoStreamTrack();
|
|
VideoFrameContainer* container = GetVideoFrameContainer();
|
|
if (mSrcStreamIsPlaying && container) {
|
|
mSelectedVideoStreamTrack->AddVideoOutput(container);
|
|
MaybeBeginCloningVisually();
|
|
}
|
|
HTMLVideoElement* self = static_cast<HTMLVideoElement*>(this);
|
|
if (self->VideoWidth() <= 1 && self->VideoHeight() <= 1) {
|
|
// MediaInfo uses dummy values of 1 for width and height to
|
|
// mark video as valid. We need a new stream size listener
|
|
// if size is 0x0 or 1x1.
|
|
mVideoFrameListener = new VideoFrameListener(this);
|
|
mSelectedVideoStreamTrack->AddDirectListener(mVideoFrameListener);
|
|
}
|
|
}
|
|
|
|
if (mReadyState == HAVE_NOTHING) {
|
|
// No MediaStreamTracks are captured until we have metadata.
|
|
return;
|
|
}
|
|
for (OutputMediaStream& ms : mOutputStreams) {
|
|
if (aTrack->AsVideoTrack() && ms.mCapturingAudioOnly) {
|
|
// If the output stream is for audio only we ignore video tracks.
|
|
continue;
|
|
}
|
|
AddCaptureMediaTrackToOutputStream(aTrack, ms);
|
|
}
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::NotifyMediaTrackDisabled(MediaTrack* aTrack) {
|
|
MOZ_ASSERT(aTrack);
|
|
if (!aTrack) {
|
|
return;
|
|
}
|
|
#ifdef DEBUG
|
|
nsString id;
|
|
aTrack->GetId(id);
|
|
|
|
LOG(LogLevel::Debug, ("MediaElement %p %sTrack with id %s disabled", this,
|
|
aTrack->AsAudioTrack() ? "Audio" : "Video",
|
|
NS_ConvertUTF16toUTF8(id).get()));
|
|
#endif
|
|
|
|
MOZ_ASSERT((!aTrack->AsAudioTrack() || !aTrack->AsAudioTrack()->Enabled()) &&
|
|
(!aTrack->AsVideoTrack() || !aTrack->AsVideoTrack()->Selected()));
|
|
|
|
if (aTrack->AsAudioTrack()) {
|
|
// If we don't have any alive track , we don't need to mute MediaElement.
|
|
MOZ_DIAGNOSTIC_ASSERT(AudioTracks(), "Element can't have been unlinked");
|
|
if (AudioTracks()->Length() > 0) {
|
|
bool shouldMute = true;
|
|
for (uint32_t i = 0; i < AudioTracks()->Length(); ++i) {
|
|
if ((*AudioTracks())[i]->Enabled()) {
|
|
shouldMute = false;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (shouldMute) {
|
|
SetMutedInternal(mMuted | MUTED_BY_AUDIO_TRACK);
|
|
}
|
|
}
|
|
} else if (aTrack->AsVideoTrack()) {
|
|
if (mSrcStream) {
|
|
MOZ_ASSERT(mSelectedVideoStreamTrack);
|
|
if (mSelectedVideoStreamTrack && mVideoFrameListener) {
|
|
mSelectedVideoStreamTrack->RemoveDirectListener(mVideoFrameListener);
|
|
mVideoFrameListener->Forget();
|
|
mVideoFrameListener = nullptr;
|
|
}
|
|
VideoFrameContainer* container = GetVideoFrameContainer();
|
|
if (mSrcStreamIsPlaying && container) {
|
|
mSelectedVideoStreamTrack->RemoveVideoOutput(container);
|
|
}
|
|
mSelectedVideoStreamTrack = nullptr;
|
|
}
|
|
}
|
|
|
|
if (mReadyState == HAVE_NOTHING) {
|
|
// No MediaStreamTracks are captured until we have metadata, and code
|
|
// below doesn't do anything for captured decoders.
|
|
return;
|
|
}
|
|
|
|
for (OutputMediaStream& ms : mOutputStreams) {
|
|
if (ms.mCapturingDecoder) {
|
|
MOZ_ASSERT(!ms.mCapturingMediaStream);
|
|
continue;
|
|
}
|
|
MOZ_ASSERT(ms.mCapturingMediaStream);
|
|
for (int32_t i = ms.mTrackPorts.Length() - 1; i >= 0; --i) {
|
|
if (ms.mTrackPorts[i].first() == aTrack->GetId()) {
|
|
// The source of this track just ended. Force-notify that it ended.
|
|
// If we bounce it to the MediaStreamGraph it might not be picked up,
|
|
// for instance if the MediaInputPort was destroyed in the same
|
|
// iteration as it was added.
|
|
MediaStreamTrack* outputTrack = ms.mStream->FindOwnedDOMTrack(
|
|
ms.mTrackPorts[i].second()->GetDestination(),
|
|
ms.mTrackPorts[i].second()->GetDestinationTrackId());
|
|
MOZ_ASSERT(outputTrack);
|
|
if (outputTrack) {
|
|
mMainThreadEventTarget->Dispatch(
|
|
NewRunnableMethod("MediaStreamTrack::OverrideEnded", outputTrack,
|
|
&MediaStreamTrack::OverrideEnded));
|
|
}
|
|
|
|
ms.mTrackPorts[i].second()->Destroy();
|
|
ms.mTrackPorts.RemoveElementAt(i);
|
|
break;
|
|
}
|
|
}
|
|
#ifdef DEBUG
|
|
for (auto pair : ms.mTrackPorts) {
|
|
MOZ_ASSERT(pair.first() != aTrack->GetId(),
|
|
"The same MediaTrack was forwarded to the output stream more "
|
|
"than once. This shouldn't happen.");
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::DealWithFailedElement(nsIContent* aSourceElement) {
|
|
if (mShuttingDown) {
|
|
return;
|
|
}
|
|
|
|
DispatchAsyncSourceError(aSourceElement);
|
|
mMainThreadEventTarget->Dispatch(
|
|
NewRunnableMethod("HTMLMediaElement::QueueLoadFromSourceTask", this,
|
|
&HTMLMediaElement::QueueLoadFromSourceTask));
|
|
}
|
|
|
|
void HTMLMediaElement::NotifyOutputTrackStopped(DOMMediaStream* aOwningStream,
|
|
TrackID aDestinationTrackID) {
|
|
for (OutputMediaStream& ms : mOutputStreams) {
|
|
if (!ms.mCapturingMediaStream) {
|
|
continue;
|
|
}
|
|
|
|
if (ms.mStream != aOwningStream) {
|
|
continue;
|
|
}
|
|
|
|
for (int32_t i = ms.mTrackPorts.Length() - 1; i >= 0; --i) {
|
|
MediaInputPort* port = ms.mTrackPorts[i].second();
|
|
if (port->GetDestinationTrackId() != aDestinationTrackID) {
|
|
continue;
|
|
}
|
|
|
|
port->Destroy();
|
|
ms.mTrackPorts.RemoveElementAt(i);
|
|
return;
|
|
}
|
|
}
|
|
|
|
// An output track ended but its port is already gone.
|
|
// It was probably cleared by the removal of the source MediaTrack.
|
|
}
|
|
|
|
void HTMLMediaElement::LoadFromSourceChildren() {
|
|
NS_ASSERTION(mDelayingLoadEvent,
|
|
"Should delay load event (if in document) during load");
|
|
NS_ASSERTION(mIsLoadingFromSourceChildren,
|
|
"Must remember we're loading from source children");
|
|
|
|
AddMutationObserverUnlessExists(this);
|
|
|
|
while (true) {
|
|
Element* child = GetNextSource();
|
|
if (!child) {
|
|
// Exhausted candidates, wait for more candidates to be appended to
|
|
// the media element.
|
|
mLoadWaitStatus = WAITING_FOR_SOURCE;
|
|
ChangeNetworkState(NETWORK_NO_SOURCE);
|
|
ChangeDelayLoadStatus(false);
|
|
ReportLoadError("MediaLoadExhaustedCandidates");
|
|
return;
|
|
}
|
|
|
|
// Must have src attribute.
|
|
nsAutoString src;
|
|
if (!child->GetAttr(kNameSpaceID_None, nsGkAtoms::src, src)) {
|
|
ReportLoadError("MediaLoadSourceMissingSrc");
|
|
DealWithFailedElement(child);
|
|
return;
|
|
}
|
|
|
|
// If we have a type attribute, it must be a supported type.
|
|
nsAutoString type;
|
|
if (child->GetAttr(kNameSpaceID_None, nsGkAtoms::type, type)) {
|
|
DecoderDoctorDiagnostics diagnostics;
|
|
CanPlayStatus canPlay = GetCanPlay(type, &diagnostics);
|
|
diagnostics.StoreFormatDiagnostics(OwnerDoc(), type,
|
|
canPlay != CANPLAY_NO, __func__);
|
|
if (canPlay == CANPLAY_NO) {
|
|
const char16_t* params[] = {type.get(), src.get()};
|
|
ReportLoadError("MediaLoadUnsupportedTypeAttribute", params,
|
|
ArrayLength(params));
|
|
DealWithFailedElement(child);
|
|
return;
|
|
}
|
|
}
|
|
HTMLSourceElement* childSrc = HTMLSourceElement::FromNode(child);
|
|
LOG(LogLevel::Debug,
|
|
("%p Trying load from <source>=%s type=%s", this,
|
|
NS_ConvertUTF16toUTF8(src).get(), NS_ConvertUTF16toUTF8(type).get()));
|
|
|
|
nsCOMPtr<nsIURI> uri;
|
|
NewURIFromString(src, getter_AddRefs(uri));
|
|
if (!uri) {
|
|
const char16_t* params[] = {src.get()};
|
|
ReportLoadError("MediaLoadInvalidURI", params, ArrayLength(params));
|
|
DealWithFailedElement(child);
|
|
return;
|
|
}
|
|
|
|
RemoveMediaElementFromURITable();
|
|
mLoadingSrc = uri;
|
|
mLoadingSrcTriggeringPrincipal = childSrc->GetSrcTriggeringPrincipal();
|
|
DDLOG(DDLogCategory::Property, "loading_src",
|
|
nsCString(NS_ConvertUTF16toUTF8(src)));
|
|
mMediaSource = childSrc->GetSrcMediaSource();
|
|
DDLINKCHILD("mediasource", mMediaSource.get());
|
|
NS_ASSERTION(mNetworkState == NETWORK_LOADING,
|
|
"Network state should be loading");
|
|
|
|
if (mPreloadAction == HTMLMediaElement::PRELOAD_NONE && !mMediaSource) {
|
|
// preload:none media, suspend the load here before we make any
|
|
// network requests.
|
|
SuspendLoad();
|
|
return;
|
|
}
|
|
|
|
if (NS_SUCCEEDED(LoadResource())) {
|
|
return;
|
|
}
|
|
|
|
// If we fail to load, loop back and try loading the next resource.
|
|
DispatchAsyncSourceError(child);
|
|
}
|
|
MOZ_ASSERT_UNREACHABLE("Execution should not reach here!");
|
|
}
|
|
|
|
void HTMLMediaElement::SuspendLoad() {
|
|
mSuspendedForPreloadNone = true;
|
|
ChangeNetworkState(NETWORK_IDLE);
|
|
ChangeDelayLoadStatus(false);
|
|
}
|
|
|
|
void HTMLMediaElement::ResumeLoad(PreloadAction aAction) {
|
|
NS_ASSERTION(mSuspendedForPreloadNone,
|
|
"Must be halted for preload:none to resume from preload:none "
|
|
"suspended load.");
|
|
mSuspendedForPreloadNone = false;
|
|
mPreloadAction = aAction;
|
|
ChangeDelayLoadStatus(true);
|
|
ChangeNetworkState(NETWORK_LOADING);
|
|
if (!mIsLoadingFromSourceChildren) {
|
|
// We were loading from the element's src attribute.
|
|
MediaResult rv = LoadResource();
|
|
if (NS_FAILED(rv)) {
|
|
NoSupportedMediaSourceError(rv.Description());
|
|
}
|
|
} else {
|
|
// We were loading from a child <source> element. Try to resume the
|
|
// load of that child, and if that fails, try the next child.
|
|
if (NS_FAILED(LoadResource())) {
|
|
LoadFromSourceChildren();
|
|
}
|
|
}
|
|
}
|
|
|
|
bool HTMLMediaElement::AllowedToPlay() const {
|
|
return AutoplayPolicy::IsAllowedToPlay(*this);
|
|
}
|
|
|
|
uint32_t HTMLMediaElement::GetPreloadDefault() const {
|
|
if (mMediaSource) {
|
|
return HTMLMediaElement::PRELOAD_ATTR_METADATA;
|
|
}
|
|
if (OnCellularConnection()) {
|
|
return Preferences::GetInt("media.preload.default.cellular",
|
|
HTMLMediaElement::PRELOAD_ATTR_NONE);
|
|
}
|
|
return Preferences::GetInt("media.preload.default",
|
|
HTMLMediaElement::PRELOAD_ATTR_METADATA);
|
|
}
|
|
|
|
uint32_t HTMLMediaElement::GetPreloadDefaultAuto() const {
|
|
if (OnCellularConnection()) {
|
|
return Preferences::GetInt("media.preload.auto.cellular",
|
|
HTMLMediaElement::PRELOAD_ATTR_METADATA);
|
|
}
|
|
return Preferences::GetInt("media.preload.auto",
|
|
HTMLMediaElement::PRELOAD_ENOUGH);
|
|
}
|
|
|
|
void HTMLMediaElement::UpdatePreloadAction() {
|
|
PreloadAction nextAction = PRELOAD_UNDEFINED;
|
|
// If autoplay is set, or we're playing, we should always preload data,
|
|
// as we'll need it to play.
|
|
if ((AutoplayPolicy::IsAllowedToPlay(*this) &&
|
|
HasAttr(kNameSpaceID_None, nsGkAtoms::autoplay)) ||
|
|
!mPaused) {
|
|
nextAction = HTMLMediaElement::PRELOAD_ENOUGH;
|
|
} else {
|
|
// Find the appropriate preload action by looking at the attribute.
|
|
const nsAttrValue* val =
|
|
mAttrs.GetAttr(nsGkAtoms::preload, kNameSpaceID_None);
|
|
// MSE doesn't work if preload is none, so it ignores the pref when src is
|
|
// from MSE.
|
|
uint32_t preloadDefault = GetPreloadDefault();
|
|
uint32_t preloadAuto = GetPreloadDefaultAuto();
|
|
if (!val) {
|
|
// Attribute is not set. Use the preload action specified by the
|
|
// media.preload.default pref, or just preload metadata if not present.
|
|
nextAction = static_cast<PreloadAction>(preloadDefault);
|
|
} else if (val->Type() == nsAttrValue::eEnum) {
|
|
PreloadAttrValue attr =
|
|
static_cast<PreloadAttrValue>(val->GetEnumValue());
|
|
if (attr == HTMLMediaElement::PRELOAD_ATTR_EMPTY ||
|
|
attr == HTMLMediaElement::PRELOAD_ATTR_AUTO) {
|
|
nextAction = static_cast<PreloadAction>(preloadAuto);
|
|
} else if (attr == HTMLMediaElement::PRELOAD_ATTR_METADATA) {
|
|
nextAction = HTMLMediaElement::PRELOAD_METADATA;
|
|
} else if (attr == HTMLMediaElement::PRELOAD_ATTR_NONE) {
|
|
nextAction = HTMLMediaElement::PRELOAD_NONE;
|
|
}
|
|
} else {
|
|
// Use the suggested "missing value default" of "metadata", or the value
|
|
// specified by the media.preload.default, if present.
|
|
nextAction = static_cast<PreloadAction>(preloadDefault);
|
|
}
|
|
}
|
|
|
|
if (nextAction == HTMLMediaElement::PRELOAD_NONE && mIsDoingExplicitLoad) {
|
|
nextAction = HTMLMediaElement::PRELOAD_METADATA;
|
|
}
|
|
|
|
mPreloadAction = nextAction;
|
|
|
|
if (nextAction == HTMLMediaElement::PRELOAD_ENOUGH) {
|
|
if (mSuspendedForPreloadNone) {
|
|
// Our load was previouly suspended due to the media having preload
|
|
// value "none". The preload value has changed to preload:auto, so
|
|
// resume the load.
|
|
ResumeLoad(PRELOAD_ENOUGH);
|
|
} else {
|
|
// Preload as much of the video as we can, i.e. don't suspend after
|
|
// the first frame.
|
|
StopSuspendingAfterFirstFrame();
|
|
}
|
|
|
|
} else if (nextAction == HTMLMediaElement::PRELOAD_METADATA) {
|
|
// Ensure that the video can be suspended after first frame.
|
|
mAllowSuspendAfterFirstFrame = true;
|
|
if (mSuspendedForPreloadNone) {
|
|
// Our load was previouly suspended due to the media having preload
|
|
// value "none". The preload value has changed to preload:metadata, so
|
|
// resume the load. We'll pause the load again after we've read the
|
|
// metadata.
|
|
ResumeLoad(PRELOAD_METADATA);
|
|
}
|
|
}
|
|
}
|
|
|
|
MediaResult HTMLMediaElement::LoadResource() {
|
|
AbstractThread::AutoEnter context(AbstractMainThread());
|
|
|
|
NS_ASSERTION(mDelayingLoadEvent,
|
|
"Should delay load event (if in document) during load");
|
|
|
|
if (mChannelLoader) {
|
|
mChannelLoader->Cancel();
|
|
mChannelLoader = nullptr;
|
|
}
|
|
|
|
// Set the media element's CORS mode only when loading a resource
|
|
mCORSMode = AttrValueToCORSMode(GetParsedAttr(nsGkAtoms::crossorigin));
|
|
|
|
HTMLMediaElement* other = LookupMediaElementURITable(mLoadingSrc);
|
|
if (other && other->mDecoder) {
|
|
// Clone it.
|
|
// TODO: remove the cast by storing ChannelMediaDecoder in the URI table.
|
|
nsresult rv = InitializeDecoderAsClone(
|
|
static_cast<ChannelMediaDecoder*>(other->mDecoder.get()));
|
|
if (NS_SUCCEEDED(rv)) return rv;
|
|
}
|
|
|
|
if (mMediaSource) {
|
|
MediaDecoderInit decoderInit(
|
|
this, mMuted ? 0.0 : mVolume, mPreservesPitch,
|
|
ClampPlaybackRate(mPlaybackRate),
|
|
mPreloadAction == HTMLMediaElement::PRELOAD_METADATA, mHasSuspendTaint,
|
|
HasAttr(kNameSpaceID_None, nsGkAtoms::loop),
|
|
MediaContainerType(MEDIAMIMETYPE("application/x.mediasource")));
|
|
|
|
RefPtr<MediaSourceDecoder> decoder = new MediaSourceDecoder(decoderInit);
|
|
if (!mMediaSource->Attach(decoder)) {
|
|
// TODO: Handle failure: run "If the media data cannot be fetched at
|
|
// all, due to network errors, causing the user agent to give up
|
|
// trying to fetch the resource" section of resource fetch algorithm.
|
|
decoder->Shutdown();
|
|
return MediaResult(NS_ERROR_FAILURE, "Failed to attach MediaSource");
|
|
}
|
|
ChangeDelayLoadStatus(false);
|
|
nsresult rv = decoder->Load(mMediaSource->GetPrincipal());
|
|
if (NS_FAILED(rv)) {
|
|
decoder->Shutdown();
|
|
LOG(LogLevel::Debug,
|
|
("%p Failed to load for decoder %p", this, decoder.get()));
|
|
return MediaResult(rv, "Fail to load decoder");
|
|
}
|
|
rv = FinishDecoderSetup(decoder);
|
|
return MediaResult(rv, "Failed to set up decoder");
|
|
}
|
|
|
|
AssertReadyStateIsNothing();
|
|
|
|
RefPtr<ChannelLoader> loader = new ChannelLoader;
|
|
nsresult rv = loader->Load(this);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
mChannelLoader = loader.forget();
|
|
}
|
|
return MediaResult(rv, "Failed to load channel");
|
|
}
|
|
|
|
nsresult HTMLMediaElement::LoadWithChannel(nsIChannel* aChannel,
|
|
nsIStreamListener** aListener) {
|
|
NS_ENSURE_ARG_POINTER(aChannel);
|
|
NS_ENSURE_ARG_POINTER(aListener);
|
|
|
|
*aListener = nullptr;
|
|
|
|
// Make sure we don't reenter during synchronous abort events.
|
|
if (mIsRunningLoadMethod) return NS_OK;
|
|
mIsRunningLoadMethod = true;
|
|
AbortExistingLoads();
|
|
mIsRunningLoadMethod = false;
|
|
|
|
mLoadingSrcTriggeringPrincipal = nullptr;
|
|
nsresult rv = aChannel->GetOriginalURI(getter_AddRefs(mLoadingSrc));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
ChangeDelayLoadStatus(true);
|
|
rv = InitializeDecoderForChannel(aChannel, aListener);
|
|
if (NS_FAILED(rv)) {
|
|
ChangeDelayLoadStatus(false);
|
|
return rv;
|
|
}
|
|
|
|
SetPlaybackRate(mDefaultPlaybackRate, IgnoreErrors());
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("loadstart"));
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
bool HTMLMediaElement::Seeking() const {
|
|
return mDecoder && mDecoder->IsSeeking();
|
|
}
|
|
|
|
double HTMLMediaElement::CurrentTime() const {
|
|
if (MediaStream* stream = GetSrcMediaStream()) {
|
|
MediaStreamGraph* graph = stream->Graph();
|
|
GraphTime currentGraphTime =
|
|
mSrcStreamPausedGraphTime.valueOr(graph->CurrentTime());
|
|
StreamTime currentStreamTime = currentGraphTime - mSrcStreamGraphTimeOffset;
|
|
return stream->StreamTimeToSeconds(currentStreamTime);
|
|
}
|
|
|
|
if (mDefaultPlaybackStartPosition == 0.0 && mDecoder) {
|
|
return mDecoder->GetCurrentTime();
|
|
}
|
|
|
|
return mDefaultPlaybackStartPosition;
|
|
}
|
|
|
|
void HTMLMediaElement::FastSeek(double aTime, ErrorResult& aRv) {
|
|
LOG(LogLevel::Debug, ("%p FastSeek(%f) called by JS", this, aTime));
|
|
LOG(LogLevel::Debug, ("Reporting telemetry VIDEO_FASTSEEK_USED"));
|
|
Telemetry::Accumulate(Telemetry::VIDEO_FASTSEEK_USED, 1);
|
|
RefPtr<Promise> tobeDropped =
|
|
Seek(aTime, SeekTarget::PrevSyncPoint, IgnoreErrors());
|
|
}
|
|
|
|
already_AddRefed<Promise> HTMLMediaElement::SeekToNextFrame(ErrorResult& aRv) {
|
|
/* This will cause JIT code to be kept around longer, to help performance
|
|
* when using SeekToNextFrame to iterate through every frame of a video.
|
|
*/
|
|
nsPIDOMWindowInner* win = OwnerDoc()->GetInnerWindow();
|
|
|
|
if (win) {
|
|
if (JSObject* obj = win->AsGlobal()->GetGlobalJSObject()) {
|
|
js::NotifyAnimationActivity(obj);
|
|
}
|
|
}
|
|
|
|
return Seek(CurrentTime(), SeekTarget::NextFrame, aRv);
|
|
}
|
|
|
|
void HTMLMediaElement::SetCurrentTime(double aCurrentTime, ErrorResult& aRv) {
|
|
LOG(LogLevel::Debug,
|
|
("%p SetCurrentTime(%f) called by JS", this, aCurrentTime));
|
|
RefPtr<Promise> tobeDropped =
|
|
Seek(aCurrentTime, SeekTarget::Accurate, IgnoreErrors());
|
|
}
|
|
|
|
/**
|
|
* Check if aValue is inside a range of aRanges, and if so returns true
|
|
* and puts the range index in aIntervalIndex. If aValue is not
|
|
* inside a range, returns false, and aIntervalIndex
|
|
* is set to the index of the range which starts immediately after aValue
|
|
* (and can be aRanges.Length() if aValue is after the last range).
|
|
*/
|
|
static bool IsInRanges(TimeRanges& aRanges, double aValue,
|
|
uint32_t& aIntervalIndex) {
|
|
uint32_t length = aRanges.Length();
|
|
|
|
for (uint32_t i = 0; i < length; i++) {
|
|
double start = aRanges.Start(i);
|
|
if (start > aValue) {
|
|
aIntervalIndex = i;
|
|
return false;
|
|
}
|
|
double end = aRanges.End(i);
|
|
if (aValue <= end) {
|
|
aIntervalIndex = i;
|
|
return true;
|
|
}
|
|
}
|
|
aIntervalIndex = length;
|
|
return false;
|
|
}
|
|
|
|
already_AddRefed<Promise> HTMLMediaElement::Seek(double aTime,
|
|
SeekTarget::Type aSeekType,
|
|
ErrorResult& aRv) {
|
|
// Note: Seek is called both by synchronous code that expects errors thrown in
|
|
// aRv, as well as asynchronous code that expects a promise. Make sure all
|
|
// synchronous errors are returned using aRv, not promise rejections.
|
|
|
|
// aTime should be non-NaN.
|
|
MOZ_ASSERT(!mozilla::IsNaN(aTime));
|
|
|
|
// Seeking step1, Set the media element's show poster flag to false.
|
|
// https://html.spec.whatwg.org/multipage/media.html#dom-media-seek
|
|
mShowPoster = false;
|
|
|
|
RefPtr<Promise> promise = CreateDOMPromise(aRv);
|
|
if (NS_WARN_IF(aRv.Failed())) {
|
|
return nullptr;
|
|
}
|
|
|
|
// Detect if user has interacted with element by seeking so that
|
|
// play will not be blocked when initiated by a script.
|
|
if (EventStateManager::IsHandlingUserInput()) {
|
|
mIsBlessed = true;
|
|
}
|
|
|
|
StopSuspendingAfterFirstFrame();
|
|
|
|
if (mSrcStream) {
|
|
// do nothing since media streams have an empty Seekable range.
|
|
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
|
|
return nullptr;
|
|
}
|
|
|
|
if (mPlayed && mCurrentPlayRangeStart != -1.0) {
|
|
double rangeEndTime = CurrentTime();
|
|
LOG(LogLevel::Debug, ("%p Adding \'played\' a range : [%f, %f]", this,
|
|
mCurrentPlayRangeStart, rangeEndTime));
|
|
// Multiple seek without playing, or seek while playing.
|
|
if (mCurrentPlayRangeStart != rangeEndTime) {
|
|
mPlayed->Add(mCurrentPlayRangeStart, rangeEndTime);
|
|
}
|
|
// Reset the current played range start time. We'll re-set it once
|
|
// the seek completes.
|
|
mCurrentPlayRangeStart = -1.0;
|
|
}
|
|
|
|
if (mReadyState == HAVE_NOTHING) {
|
|
mDefaultPlaybackStartPosition = aTime;
|
|
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
|
|
return nullptr;
|
|
}
|
|
|
|
if (!mDecoder) {
|
|
// mDecoder must always be set in order to reach this point.
|
|
NS_ASSERTION(mDecoder, "SetCurrentTime failed: no decoder");
|
|
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
|
|
return nullptr;
|
|
}
|
|
|
|
// Clamp the seek target to inside the seekable ranges.
|
|
media::TimeIntervals seekableIntervals = mDecoder->GetSeekable();
|
|
if (seekableIntervals.IsInvalid()) {
|
|
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
|
|
return nullptr;
|
|
}
|
|
RefPtr<TimeRanges> seekable =
|
|
new TimeRanges(ToSupports(OwnerDoc()), seekableIntervals);
|
|
uint32_t length = seekable->Length();
|
|
if (length == 0) {
|
|
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
|
|
return nullptr;
|
|
}
|
|
|
|
// If the position we want to seek to is not in a seekable range, we seek
|
|
// to the closest position in the seekable ranges instead. If two positions
|
|
// are equally close, we seek to the closest position from the currentTime.
|
|
// See seeking spec, point 7 :
|
|
// http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#seeking
|
|
uint32_t range = 0;
|
|
bool isInRange = IsInRanges(*seekable, aTime, range);
|
|
if (!isInRange) {
|
|
if (range == 0) {
|
|
// aTime is before the first range in |seekable|, the closest point we can
|
|
// seek to is the start of the first range.
|
|
aTime = seekable->Start(0);
|
|
} else if (range == length) {
|
|
// Seek target is after the end last range in seekable data.
|
|
// Clamp the seek target to the end of the last seekable range.
|
|
aTime = seekable->End(length - 1);
|
|
} else {
|
|
double leftBound = seekable->End(range - 1);
|
|
double rightBound = seekable->Start(range);
|
|
double distanceLeft = Abs(leftBound - aTime);
|
|
double distanceRight = Abs(rightBound - aTime);
|
|
if (distanceLeft == distanceRight) {
|
|
double currentTime = CurrentTime();
|
|
distanceLeft = Abs(leftBound - currentTime);
|
|
distanceRight = Abs(rightBound - currentTime);
|
|
}
|
|
aTime = (distanceLeft < distanceRight) ? leftBound : rightBound;
|
|
}
|
|
}
|
|
|
|
// TODO: The spec requires us to update the current time to reflect the
|
|
// actual seek target before beginning the synchronous section, but
|
|
// that requires changing all MediaDecoderReaders to support telling
|
|
// us the fastSeek target, and it's currently not possible to get
|
|
// this information as we don't yet control the demuxer for all
|
|
// MediaDecoderReaders.
|
|
|
|
mPlayingBeforeSeek = IsPotentiallyPlaying();
|
|
|
|
// If the audio track is silent before seeking, we should end current silence
|
|
// range and start a new range after seeking. Since seek() could be called
|
|
// multiple times before seekEnd() executed, we should only calculate silence
|
|
// range when first time seek() called. Calculating on other seek() calls
|
|
// would cause a wrong result. In order to get correct time, this checking
|
|
// should be called before decoder->seek().
|
|
if (IsAudioTrackCurrentlySilent() &&
|
|
!mHasAccumulatedSilenceRangeBeforeSeekEnd) {
|
|
AccumulateAudioTrackSilence();
|
|
mHasAccumulatedSilenceRangeBeforeSeekEnd = true;
|
|
}
|
|
|
|
// The media backend is responsible for dispatching the timeupdate
|
|
// event if it changes the playback position as a result of the seek.
|
|
LOG(LogLevel::Debug, ("%p SetCurrentTime(%f) starting seek", this, aTime));
|
|
mDecoder->Seek(aTime, aSeekType);
|
|
|
|
// We changed whether we're seeking so we need to AddRemoveSelfReference.
|
|
AddRemoveSelfReference();
|
|
|
|
// Keep the DOM promise.
|
|
mSeekDOMPromise = promise;
|
|
|
|
return promise.forget();
|
|
}
|
|
|
|
double HTMLMediaElement::Duration() const {
|
|
if (mSrcStream) {
|
|
return std::numeric_limits<double>::infinity();
|
|
}
|
|
|
|
if (mDecoder) {
|
|
return mDecoder->GetDuration();
|
|
}
|
|
|
|
return std::numeric_limits<double>::quiet_NaN();
|
|
}
|
|
|
|
already_AddRefed<TimeRanges> HTMLMediaElement::Seekable() const {
|
|
media::TimeIntervals seekable =
|
|
mDecoder ? mDecoder->GetSeekable() : media::TimeIntervals();
|
|
RefPtr<TimeRanges> ranges = new TimeRanges(ToSupports(OwnerDoc()), seekable);
|
|
return ranges.forget();
|
|
}
|
|
|
|
already_AddRefed<TimeRanges> HTMLMediaElement::Played() {
|
|
RefPtr<TimeRanges> ranges = new TimeRanges(ToSupports(OwnerDoc()));
|
|
|
|
uint32_t timeRangeCount = 0;
|
|
if (mPlayed) {
|
|
timeRangeCount = mPlayed->Length();
|
|
}
|
|
for (uint32_t i = 0; i < timeRangeCount; i++) {
|
|
double begin = mPlayed->Start(i);
|
|
double end = mPlayed->End(i);
|
|
ranges->Add(begin, end);
|
|
}
|
|
|
|
if (mCurrentPlayRangeStart != -1.0) {
|
|
double now = CurrentTime();
|
|
if (mCurrentPlayRangeStart != now) {
|
|
ranges->Add(mCurrentPlayRangeStart, now);
|
|
}
|
|
}
|
|
|
|
ranges->Normalize();
|
|
return ranges.forget();
|
|
}
|
|
|
|
void HTMLMediaElement::Pause(ErrorResult& aRv) {
|
|
LOG(LogLevel::Debug, ("%p Pause() called by JS", this));
|
|
if (mNetworkState == NETWORK_EMPTY) {
|
|
LOG(LogLevel::Debug, ("Loading due to Pause()"));
|
|
DoLoad();
|
|
} else if (mDecoder) {
|
|
mDecoder->Pause();
|
|
}
|
|
|
|
bool oldPaused = mPaused;
|
|
mPaused = true;
|
|
mAutoplaying = false;
|
|
// We changed mPaused and mAutoplaying which can affect AddRemoveSelfReference
|
|
AddRemoveSelfReference();
|
|
UpdateSrcMediaStreamPlaying();
|
|
if (mAudioChannelWrapper) {
|
|
mAudioChannelWrapper->NotifyPlayStateChanged();
|
|
}
|
|
|
|
if (!oldPaused) {
|
|
FireTimeUpdate(false);
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("pause"));
|
|
AsyncRejectPendingPlayPromises(NS_ERROR_DOM_MEDIA_ABORT_ERR);
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::SetVolume(double aVolume, ErrorResult& aRv) {
|
|
LOG(LogLevel::Debug, ("%p SetVolume(%f) called by JS", this, aVolume));
|
|
|
|
if (aVolume < 0.0 || aVolume > 1.0) {
|
|
aRv.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
|
|
return;
|
|
}
|
|
|
|
if (aVolume == mVolume) return;
|
|
|
|
mVolume = aVolume;
|
|
|
|
// Here we want just to update the volume.
|
|
SetVolumeInternal();
|
|
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("volumechange"));
|
|
|
|
// We allow inaudible autoplay. But changing our volume may make this
|
|
// media audible. So pause if we are no longer supposed to be autoplaying.
|
|
PauseIfShouldNotBePlaying();
|
|
}
|
|
|
|
void HTMLMediaElement::MozGetMetadata(JSContext* cx,
|
|
JS::MutableHandle<JSObject*> aRetval,
|
|
ErrorResult& aRv) {
|
|
if (mReadyState < HAVE_METADATA) {
|
|
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
|
|
return;
|
|
}
|
|
|
|
JS::Rooted<JSObject*> tags(cx, JS_NewPlainObject(cx));
|
|
if (!tags) {
|
|
aRv.Throw(NS_ERROR_FAILURE);
|
|
return;
|
|
}
|
|
if (mTags) {
|
|
for (auto iter = mTags->ConstIter(); !iter.Done(); iter.Next()) {
|
|
nsString wideValue;
|
|
CopyUTF8toUTF16(iter.UserData(), wideValue);
|
|
JS::Rooted<JSString*> string(cx,
|
|
JS_NewUCStringCopyZ(cx, wideValue.Data()));
|
|
if (!string || !JS_DefineProperty(cx, tags, iter.Key().Data(), string,
|
|
JSPROP_ENUMERATE)) {
|
|
NS_WARNING("couldn't create metadata object!");
|
|
aRv.Throw(NS_ERROR_FAILURE);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
aRetval.set(tags);
|
|
}
|
|
|
|
void HTMLMediaElement::SetMutedInternal(uint32_t aMuted) {
|
|
uint32_t oldMuted = mMuted;
|
|
mMuted = aMuted;
|
|
|
|
if (!!aMuted == !!oldMuted) {
|
|
return;
|
|
}
|
|
|
|
SetVolumeInternal();
|
|
}
|
|
|
|
void HTMLMediaElement::PauseIfShouldNotBePlaying() {
|
|
if (GetPaused()) {
|
|
return;
|
|
}
|
|
if (!AutoplayPolicy::IsAllowedToPlay(*this)) {
|
|
AUTOPLAY_LOG("pause because not allowed to play, element=%p", this);
|
|
ErrorResult rv;
|
|
Pause(rv);
|
|
OwnerDoc()->SetDocTreeHadPlayRevoked();
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::SetVolumeInternal() {
|
|
float effectiveVolume = ComputedVolume();
|
|
|
|
if (mDecoder) {
|
|
mDecoder->SetVolume(effectiveVolume);
|
|
} else if (MediaStream* stream = GetSrcMediaStream()) {
|
|
if (mSrcStreamIsPlaying) {
|
|
stream->SetAudioOutputVolume(this, effectiveVolume);
|
|
}
|
|
}
|
|
|
|
NotifyAudioPlaybackChanged(
|
|
AudioChannelService::AudibleChangedReasons::eVolumeChanged);
|
|
}
|
|
|
|
void HTMLMediaElement::SetMuted(bool aMuted) {
|
|
LOG(LogLevel::Debug, ("%p SetMuted(%d) called by JS", this, aMuted));
|
|
if (aMuted == Muted()) {
|
|
return;
|
|
}
|
|
|
|
if (aMuted) {
|
|
SetMutedInternal(mMuted | MUTED_BY_CONTENT);
|
|
} else {
|
|
SetMutedInternal(mMuted & ~MUTED_BY_CONTENT);
|
|
}
|
|
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("volumechange"));
|
|
|
|
// We allow inaudible autoplay. But changing our mute status may make this
|
|
// media audible. So pause if we are no longer supposed to be autoplaying.
|
|
PauseIfShouldNotBePlaying();
|
|
}
|
|
|
|
void HTMLMediaElement::SetCapturedOutputStreamsEnabled(bool aEnabled) {
|
|
for (OutputMediaStream& ms : mOutputStreams) {
|
|
if (ms.mCapturingDecoder) {
|
|
MOZ_ASSERT(!ms.mCapturingMediaStream);
|
|
continue;
|
|
}
|
|
for (auto pair : ms.mTrackPorts) {
|
|
MediaStream* outputSource = ms.mStream->GetInputStream();
|
|
if (!outputSource) {
|
|
NS_ERROR("No output source stream");
|
|
return;
|
|
}
|
|
|
|
TrackID id = pair.second()->GetDestinationTrackId();
|
|
outputSource->SetTrackEnabled(
|
|
id, aEnabled ? DisabledTrackMode::ENABLED
|
|
: DisabledTrackMode::SILENCE_FREEZE);
|
|
|
|
LOG(LogLevel::Debug,
|
|
("%s track %d for captured MediaStream %p",
|
|
aEnabled ? "Enabled" : "Disabled", id, ms.mStream.get()));
|
|
}
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::AddCaptureMediaTrackToOutputStream(
|
|
MediaTrack* aTrack, OutputMediaStream& aOutputStream, bool aAsyncAddtrack) {
|
|
if (aOutputStream.mCapturingDecoder) {
|
|
MOZ_ASSERT(!aOutputStream.mCapturingMediaStream);
|
|
return;
|
|
}
|
|
aOutputStream.mCapturingMediaStream = true;
|
|
|
|
if (aOutputStream.mStream == mSrcStream) {
|
|
// Cycle detected. This can happen since tracks are added async.
|
|
// We avoid forwarding it to the output here or we'd get into an infloop.
|
|
return;
|
|
}
|
|
|
|
MediaStream* outputSource = aOutputStream.mStream->GetInputStream();
|
|
if (!outputSource) {
|
|
NS_ERROR("No output source stream");
|
|
return;
|
|
}
|
|
|
|
ProcessedMediaStream* processedOutputSource =
|
|
outputSource->AsProcessedStream();
|
|
if (!processedOutputSource) {
|
|
NS_ERROR("Input stream not a ProcessedMediaStream");
|
|
return;
|
|
}
|
|
|
|
if (!aTrack) {
|
|
MOZ_ASSERT(false, "Bad MediaTrack");
|
|
return;
|
|
}
|
|
|
|
MediaStreamTrack* inputTrack = mSrcStream->GetTrackById(aTrack->GetId());
|
|
MOZ_ASSERT(inputTrack);
|
|
if (!inputTrack) {
|
|
NS_ERROR("Input track not found in source stream");
|
|
return;
|
|
}
|
|
|
|
#if DEBUG
|
|
for (auto pair : aOutputStream.mTrackPorts) {
|
|
MOZ_ASSERT(pair.first() != aTrack->GetId(),
|
|
"Captured track already captured to output stream");
|
|
}
|
|
#endif
|
|
|
|
TrackID destinationTrackID = aOutputStream.mNextAvailableTrackID++;
|
|
RefPtr<MediaStreamTrackSource> source =
|
|
new StreamCaptureTrackSource(this, &inputTrack->GetSource(),
|
|
aOutputStream.mStream, destinationTrackID);
|
|
|
|
MediaSegment::Type type = inputTrack->AsAudioStreamTrack()
|
|
? MediaSegment::AUDIO
|
|
: MediaSegment::VIDEO;
|
|
|
|
RefPtr<MediaStreamTrack> track =
|
|
aOutputStream.mStream->CreateDOMTrack(destinationTrackID, type, source);
|
|
|
|
if (aAsyncAddtrack) {
|
|
mMainThreadEventTarget->Dispatch(
|
|
NewRunnableMethod<StoreRefPtrPassByPtr<MediaStreamTrack>>(
|
|
"DOMMediaStream::AddTrackInternal", aOutputStream.mStream,
|
|
&DOMMediaStream::AddTrackInternal, track));
|
|
} else {
|
|
aOutputStream.mStream->AddTrackInternal(track);
|
|
}
|
|
|
|
// Track is muted initially, so we don't leak data if it's added while paused
|
|
// and an MSG iteration passes before the mute comes into effect.
|
|
processedOutputSource->SetTrackEnabled(destinationTrackID,
|
|
DisabledTrackMode::SILENCE_FREEZE);
|
|
RefPtr<MediaInputPort> port = inputTrack->ForwardTrackContentsTo(
|
|
processedOutputSource, destinationTrackID);
|
|
|
|
Pair<nsString, RefPtr<MediaInputPort>> p(aTrack->GetId(), port);
|
|
aOutputStream.mTrackPorts.AppendElement(std::move(p));
|
|
|
|
if (mSrcStreamIsPlaying) {
|
|
processedOutputSource->SetTrackEnabled(destinationTrackID,
|
|
DisabledTrackMode::ENABLED);
|
|
}
|
|
|
|
LOG(LogLevel::Debug,
|
|
("Created %s track %p with id %d from track %p through MediaInputPort %p",
|
|
inputTrack->AsAudioStreamTrack() ? "audio" : "video", track.get(),
|
|
destinationTrackID, inputTrack, port.get()));
|
|
}
|
|
|
|
bool HTMLMediaElement::CanBeCaptured(StreamCaptureType aCaptureType) {
|
|
// Don't bother capturing when the document has gone away
|
|
nsPIDOMWindowInner* window = OwnerDoc()->GetInnerWindow();
|
|
if (!window) {
|
|
return false;
|
|
}
|
|
|
|
// Prevent capturing restricted video
|
|
if (aCaptureType == StreamCaptureType::CAPTURE_ALL_TRACKS &&
|
|
ContainsRestrictedContent()) {
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
already_AddRefed<DOMMediaStream> HTMLMediaElement::CaptureStreamInternal(
|
|
StreamCaptureBehavior aFinishBehavior, StreamCaptureType aStreamCaptureType,
|
|
MediaStreamGraph* aGraph) {
|
|
MOZ_RELEASE_ASSERT(aGraph);
|
|
MOZ_ASSERT(CanBeCaptured(aStreamCaptureType));
|
|
|
|
MarkAsContentSource(CallerAPI::CAPTURE_STREAM);
|
|
MarkAsTainted();
|
|
|
|
// We don't support routing to a different graph.
|
|
if (!mOutputStreams.IsEmpty() &&
|
|
aGraph != mOutputStreams[0].mStream->GetInputStream()->Graph()) {
|
|
return nullptr;
|
|
}
|
|
|
|
OutputMediaStream* out = mOutputStreams.AppendElement();
|
|
nsPIDOMWindowInner* window = OwnerDoc()->GetInnerWindow();
|
|
out->mStream = DOMMediaStream::CreateTrackUnionStreamAsInput(window, aGraph);
|
|
out->mStream->SetFinishedOnInactive(false);
|
|
out->mFinishWhenEnded =
|
|
aFinishBehavior == StreamCaptureBehavior::FINISH_WHEN_ENDED;
|
|
out->mCapturingAudioOnly =
|
|
aStreamCaptureType == StreamCaptureType::CAPTURE_AUDIO;
|
|
|
|
if (aStreamCaptureType == StreamCaptureType::CAPTURE_AUDIO) {
|
|
if (mSrcStream) {
|
|
// We don't support applying volume and mute to the captured stream, when
|
|
// capturing a MediaStream.
|
|
ReportToConsole(nsIScriptError::errorFlag,
|
|
"MediaElementAudioCaptureOfMediaStreamError");
|
|
return nullptr;
|
|
}
|
|
|
|
// mAudioCaptured tells the user that the audio played by this media element
|
|
// is being routed to the captureStreams *instead* of being played to
|
|
// speakers.
|
|
mAudioCaptured = true;
|
|
}
|
|
|
|
if (mDecoder) {
|
|
out->mCapturingDecoder = true;
|
|
mDecoder->AddOutputStream(out->mStream);
|
|
} else if (mSrcStream) {
|
|
out->mCapturingMediaStream = true;
|
|
}
|
|
|
|
if (mReadyState == HAVE_NOTHING) {
|
|
// Do not expose the tracks until we have metadata.
|
|
RefPtr<DOMMediaStream> result = out->mStream;
|
|
return result.forget();
|
|
}
|
|
|
|
if (mSrcStream) {
|
|
MOZ_DIAGNOSTIC_ASSERT(AudioTracks(), "Element can't have been unlinked");
|
|
for (size_t i = 0; i < AudioTracks()->Length(); ++i) {
|
|
AudioTrack* t = (*AudioTracks())[i];
|
|
if (t->Enabled()) {
|
|
AddCaptureMediaTrackToOutputStream(t, *out, false);
|
|
}
|
|
}
|
|
if (IsVideo() && !out->mCapturingAudioOnly) {
|
|
MOZ_DIAGNOSTIC_ASSERT(VideoTracks(), "Element can't have been unlinked");
|
|
// Only add video tracks if we're a video element and the output stream
|
|
// wants video.
|
|
for (size_t i = 0; i < VideoTracks()->Length(); ++i) {
|
|
VideoTrack* t = (*VideoTracks())[i];
|
|
if (t->Selected()) {
|
|
AddCaptureMediaTrackToOutputStream(t, *out, false);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
RefPtr<DOMMediaStream> result = out->mStream;
|
|
return result.forget();
|
|
}
|
|
|
|
already_AddRefed<DOMMediaStream> HTMLMediaElement::CaptureAudio(
|
|
ErrorResult& aRv, MediaStreamGraph* aGraph) {
|
|
MOZ_RELEASE_ASSERT(aGraph);
|
|
|
|
if (!CanBeCaptured(StreamCaptureType::CAPTURE_AUDIO)) {
|
|
aRv.Throw(NS_ERROR_FAILURE);
|
|
return nullptr;
|
|
}
|
|
|
|
RefPtr<DOMMediaStream> stream =
|
|
CaptureStreamInternal(StreamCaptureBehavior::CONTINUE_WHEN_ENDED,
|
|
StreamCaptureType::CAPTURE_AUDIO, aGraph);
|
|
if (!stream) {
|
|
aRv.Throw(NS_ERROR_FAILURE);
|
|
return nullptr;
|
|
}
|
|
|
|
return stream.forget();
|
|
}
|
|
|
|
RefPtr<GenericNonExclusivePromise> HTMLMediaElement::GetAllowedToPlayPromise() {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
MOZ_ASSERT(!mOutputStreams.IsEmpty(),
|
|
"This method should only be called during stream capturing!");
|
|
if (AutoplayPolicy::IsAllowedToPlay(*this)) {
|
|
AUTOPLAY_LOG("MediaElement %p has allowed to play, resolve promise", this);
|
|
return GenericNonExclusivePromise::CreateAndResolve(true, __func__);
|
|
}
|
|
AUTOPLAY_LOG("create allow-to-play promise for MediaElement %p", this);
|
|
return mAllowedToPlayPromise.Ensure(__func__);
|
|
}
|
|
|
|
already_AddRefed<DOMMediaStream> HTMLMediaElement::MozCaptureStream(
|
|
ErrorResult& aRv) {
|
|
MediaStreamGraph::GraphDriverType graphDriverType =
|
|
HasAudio() ? MediaStreamGraph::AUDIO_THREAD_DRIVER
|
|
: MediaStreamGraph::SYSTEM_THREAD_DRIVER;
|
|
|
|
nsPIDOMWindowInner* window = OwnerDoc()->GetInnerWindow();
|
|
if (!window) {
|
|
aRv.Throw(NS_ERROR_FAILURE);
|
|
return nullptr;
|
|
}
|
|
|
|
if (!CanBeCaptured(StreamCaptureType::CAPTURE_ALL_TRACKS)) {
|
|
aRv.Throw(NS_ERROR_FAILURE);
|
|
return nullptr;
|
|
}
|
|
|
|
MediaStreamGraph* graph = MediaStreamGraph::GetInstance(
|
|
graphDriverType, window, MediaStreamGraph::REQUEST_DEFAULT_SAMPLE_RATE);
|
|
|
|
RefPtr<DOMMediaStream> stream =
|
|
CaptureStreamInternal(StreamCaptureBehavior::CONTINUE_WHEN_ENDED,
|
|
StreamCaptureType::CAPTURE_ALL_TRACKS, graph);
|
|
if (!stream) {
|
|
aRv.Throw(NS_ERROR_FAILURE);
|
|
return nullptr;
|
|
}
|
|
|
|
return stream.forget();
|
|
}
|
|
|
|
already_AddRefed<DOMMediaStream> HTMLMediaElement::MozCaptureStreamUntilEnded(
|
|
ErrorResult& aRv) {
|
|
MediaStreamGraph::GraphDriverType graphDriverType =
|
|
HasAudio() ? MediaStreamGraph::AUDIO_THREAD_DRIVER
|
|
: MediaStreamGraph::SYSTEM_THREAD_DRIVER;
|
|
|
|
nsPIDOMWindowInner* window = OwnerDoc()->GetInnerWindow();
|
|
if (!window) {
|
|
aRv.Throw(NS_ERROR_FAILURE);
|
|
return nullptr;
|
|
}
|
|
|
|
if (!CanBeCaptured(StreamCaptureType::CAPTURE_ALL_TRACKS)) {
|
|
aRv.Throw(NS_ERROR_FAILURE);
|
|
return nullptr;
|
|
}
|
|
|
|
MediaStreamGraph* graph = MediaStreamGraph::GetInstance(
|
|
graphDriverType, window, MediaStreamGraph::REQUEST_DEFAULT_SAMPLE_RATE);
|
|
|
|
RefPtr<DOMMediaStream> stream =
|
|
CaptureStreamInternal(StreamCaptureBehavior::FINISH_WHEN_ENDED,
|
|
StreamCaptureType::CAPTURE_ALL_TRACKS, graph);
|
|
if (!stream) {
|
|
aRv.Throw(NS_ERROR_FAILURE);
|
|
return nullptr;
|
|
}
|
|
|
|
return stream.forget();
|
|
}
|
|
|
|
class MediaElementSetForURI : public nsURIHashKey {
|
|
public:
|
|
explicit MediaElementSetForURI(const nsIURI* aKey) : nsURIHashKey(aKey) {}
|
|
MediaElementSetForURI(MediaElementSetForURI&& aOther)
|
|
: nsURIHashKey(std::move(aOther)),
|
|
mElements(std::move(aOther.mElements)) {}
|
|
nsTArray<HTMLMediaElement*> mElements;
|
|
};
|
|
|
|
typedef nsTHashtable<MediaElementSetForURI> MediaElementURITable;
|
|
// Elements in this table must have non-null mDecoder and mLoadingSrc, and those
|
|
// can't change while the element is in the table. The table is keyed by
|
|
// the element's mLoadingSrc. Each entry has a list of all elements with the
|
|
// same mLoadingSrc.
|
|
static MediaElementURITable* gElementTable;
|
|
|
|
#ifdef DEBUG
|
|
static bool URISafeEquals(nsIURI* a1, nsIURI* a2) {
|
|
if (!a1 || !a2) {
|
|
// Consider two empty URIs *not* equal!
|
|
return false;
|
|
}
|
|
bool equal = false;
|
|
nsresult rv = a1->Equals(a2, &equal);
|
|
return NS_SUCCEEDED(rv) && equal;
|
|
}
|
|
// Returns the number of times aElement appears in the media element table
|
|
// for aURI. If this returns other than 0 or 1, there's a bug somewhere!
|
|
static unsigned MediaElementTableCount(HTMLMediaElement* aElement,
|
|
nsIURI* aURI) {
|
|
if (!gElementTable || !aElement) {
|
|
return 0;
|
|
}
|
|
uint32_t uriCount = 0;
|
|
uint32_t otherCount = 0;
|
|
for (auto it = gElementTable->ConstIter(); !it.Done(); it.Next()) {
|
|
MediaElementSetForURI* entry = it.Get();
|
|
uint32_t count = 0;
|
|
for (const auto& elem : entry->mElements) {
|
|
if (elem == aElement) {
|
|
count++;
|
|
}
|
|
}
|
|
if (URISafeEquals(aURI, entry->GetKey())) {
|
|
uriCount = count;
|
|
} else {
|
|
otherCount += count;
|
|
}
|
|
}
|
|
NS_ASSERTION(otherCount == 0, "Should not have entries for unknown URIs");
|
|
return uriCount;
|
|
}
|
|
#endif
|
|
|
|
void HTMLMediaElement::AddMediaElementToURITable() {
|
|
NS_ASSERTION(mDecoder, "Call this only with decoder Load called");
|
|
NS_ASSERTION(
|
|
MediaElementTableCount(this, mLoadingSrc) == 0,
|
|
"Should not have entry for element in element table before addition");
|
|
if (!gElementTable) {
|
|
gElementTable = new MediaElementURITable();
|
|
}
|
|
MediaElementSetForURI* entry = gElementTable->PutEntry(mLoadingSrc);
|
|
entry->mElements.AppendElement(this);
|
|
NS_ASSERTION(
|
|
MediaElementTableCount(this, mLoadingSrc) == 1,
|
|
"Should have a single entry for element in element table after addition");
|
|
}
|
|
|
|
void HTMLMediaElement::RemoveMediaElementFromURITable() {
|
|
if (!mDecoder || !mLoadingSrc || !gElementTable) {
|
|
return;
|
|
}
|
|
MediaElementSetForURI* entry = gElementTable->GetEntry(mLoadingSrc);
|
|
if (!entry) {
|
|
return;
|
|
}
|
|
entry->mElements.RemoveElement(this);
|
|
if (entry->mElements.IsEmpty()) {
|
|
gElementTable->RemoveEntry(entry);
|
|
if (gElementTable->Count() == 0) {
|
|
delete gElementTable;
|
|
gElementTable = nullptr;
|
|
}
|
|
}
|
|
NS_ASSERTION(MediaElementTableCount(this, mLoadingSrc) == 0,
|
|
"After remove, should no longer have an entry in element table");
|
|
}
|
|
|
|
HTMLMediaElement* HTMLMediaElement::LookupMediaElementURITable(nsIURI* aURI) {
|
|
if (!gElementTable) {
|
|
return nullptr;
|
|
}
|
|
MediaElementSetForURI* entry = gElementTable->GetEntry(aURI);
|
|
if (!entry) {
|
|
return nullptr;
|
|
}
|
|
for (uint32_t i = 0; i < entry->mElements.Length(); ++i) {
|
|
HTMLMediaElement* elem = entry->mElements[i];
|
|
bool equal;
|
|
// Look for elements that have the same principal and CORS mode.
|
|
// Ditto for anything else that could cause us to send different headers.
|
|
if (NS_SUCCEEDED(elem->NodePrincipal()->Equals(NodePrincipal(), &equal)) &&
|
|
equal && elem->mCORSMode == mCORSMode) {
|
|
// See SetupDecoder() below. We only add a element to the table when
|
|
// mDecoder is a ChannelMediaDecoder.
|
|
auto decoder = static_cast<ChannelMediaDecoder*>(elem->mDecoder.get());
|
|
NS_ASSERTION(decoder, "Decoder gone");
|
|
if (decoder->CanClone()) {
|
|
return elem;
|
|
}
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
class HTMLMediaElement::ShutdownObserver : public nsIObserver {
|
|
enum class Phase : int8_t { Init, Subscribed, Unsubscribed };
|
|
|
|
public:
|
|
NS_DECL_ISUPPORTS
|
|
|
|
NS_IMETHOD Observe(nsISupports*, const char* aTopic,
|
|
const char16_t*) override {
|
|
if (mPhase != Phase::Subscribed) {
|
|
// Bail out if we are not subscribed for this might be called even after
|
|
// |nsContentUtils::UnregisterShutdownObserver(this)|.
|
|
return NS_OK;
|
|
}
|
|
MOZ_DIAGNOSTIC_ASSERT(mWeak);
|
|
if (strcmp(aTopic, NS_XPCOM_SHUTDOWN_OBSERVER_ID) == 0) {
|
|
mWeak->NotifyShutdownEvent();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
void Subscribe(HTMLMediaElement* aPtr) {
|
|
MOZ_DIAGNOSTIC_ASSERT(mPhase == Phase::Init);
|
|
MOZ_DIAGNOSTIC_ASSERT(!mWeak);
|
|
mWeak = aPtr;
|
|
nsContentUtils::RegisterShutdownObserver(this);
|
|
mPhase = Phase::Subscribed;
|
|
}
|
|
void Unsubscribe() {
|
|
MOZ_DIAGNOSTIC_ASSERT(mPhase == Phase::Subscribed);
|
|
MOZ_DIAGNOSTIC_ASSERT(mWeak);
|
|
MOZ_DIAGNOSTIC_ASSERT(!mAddRefed,
|
|
"ReleaseMediaElement should have been called first");
|
|
mWeak = nullptr;
|
|
nsContentUtils::UnregisterShutdownObserver(this);
|
|
mPhase = Phase::Unsubscribed;
|
|
}
|
|
void AddRefMediaElement() {
|
|
MOZ_DIAGNOSTIC_ASSERT(mWeak);
|
|
MOZ_DIAGNOSTIC_ASSERT(!mAddRefed, "Should only ever AddRef once");
|
|
mWeak->AddRef();
|
|
mAddRefed = true;
|
|
}
|
|
void ReleaseMediaElement() {
|
|
MOZ_DIAGNOSTIC_ASSERT(mWeak);
|
|
MOZ_DIAGNOSTIC_ASSERT(mAddRefed, "Should only release after AddRef");
|
|
mWeak->Release();
|
|
mAddRefed = false;
|
|
}
|
|
|
|
private:
|
|
virtual ~ShutdownObserver() {
|
|
MOZ_DIAGNOSTIC_ASSERT(mPhase == Phase::Unsubscribed);
|
|
MOZ_DIAGNOSTIC_ASSERT(!mWeak);
|
|
MOZ_DIAGNOSTIC_ASSERT(!mAddRefed,
|
|
"ReleaseMediaElement should have been called first");
|
|
}
|
|
// Guaranteed to be valid by HTMLMediaElement.
|
|
HTMLMediaElement* mWeak = nullptr;
|
|
Phase mPhase = Phase::Init;
|
|
bool mAddRefed = false;
|
|
};
|
|
|
|
NS_IMPL_ISUPPORTS(HTMLMediaElement::ShutdownObserver, nsIObserver)
|
|
|
|
HTMLMediaElement::HTMLMediaElement(
|
|
already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo)
|
|
: nsGenericHTMLElement(std::move(aNodeInfo)),
|
|
mWatchManager(this,
|
|
OwnerDoc()->AbstractMainThreadFor(TaskCategory::Other)),
|
|
mMainThreadEventTarget(OwnerDoc()->EventTargetFor(TaskCategory::Other)),
|
|
mAbstractMainThread(
|
|
OwnerDoc()->AbstractMainThreadFor(TaskCategory::Other)),
|
|
mShutdownObserver(new ShutdownObserver),
|
|
mPlayed(new TimeRanges(ToSupports(OwnerDoc()))),
|
|
mPaused(true, "HTMLMediaElement::mPaused"),
|
|
mErrorSink(new ErrorSink(this)),
|
|
mAudioChannelWrapper(new AudioChannelAgentCallback(this)),
|
|
mSink(MakePair(nsString(), RefPtr<AudioDeviceInfo>())),
|
|
mShowPoster(IsVideo()) {
|
|
MOZ_ASSERT(mMainThreadEventTarget);
|
|
MOZ_ASSERT(mAbstractMainThread);
|
|
// Please don't add anything to this constructor or the initialization
|
|
// list that can cause AddRef to be called. This prevents subclasses
|
|
// from overriding AddRef in a way that works with our refcount
|
|
// logging mechanisms. Put these things inside of the ::Init method
|
|
// instead.
|
|
}
|
|
|
|
void HTMLMediaElement::Init() {
|
|
MOZ_ASSERT(mRefCnt == 0 && !mRefCnt.IsPurple(),
|
|
"HTMLMediaElement::Init called when AddRef has been called "
|
|
"at least once already, probably in the constructor. Please "
|
|
"see the documentation in the HTMLMediaElement constructor.");
|
|
MOZ_ASSERT(!mRefCnt.IsPurple());
|
|
|
|
mAudioTrackList = new AudioTrackList(OwnerDoc()->GetParentObject(), this);
|
|
mVideoTrackList = new VideoTrackList(OwnerDoc()->GetParentObject(), this);
|
|
|
|
DecoderDoctorLogger::LogConstruction(this);
|
|
|
|
mWatchManager.Watch(mPaused, &HTMLMediaElement::UpdateWakeLock);
|
|
|
|
ErrorResult rv;
|
|
|
|
double defaultVolume = Preferences::GetFloat("media.default_volume", 1.0);
|
|
SetVolume(defaultVolume, rv);
|
|
|
|
RegisterActivityObserver();
|
|
NotifyOwnerDocumentActivityChanged();
|
|
|
|
// We initialize the MediaShutdownManager as the HTMLMediaElement is always
|
|
// constructed on the main thread, and not during stable state.
|
|
// (MediaShutdownManager make use of nsIAsyncShutdownClient which is written
|
|
// in JS)
|
|
MediaShutdownManager::InitStatics();
|
|
|
|
mShutdownObserver->Subscribe(this);
|
|
mInitialized = true;
|
|
}
|
|
|
|
HTMLMediaElement::~HTMLMediaElement() {
|
|
MOZ_ASSERT(mInitialized,
|
|
"HTMLMediaElement must be initialized before it is destroyed.");
|
|
NS_ASSERTION(
|
|
!mHasSelfReference,
|
|
"How can we be destroyed if we're still holding a self reference?");
|
|
|
|
mShutdownObserver->Unsubscribe();
|
|
|
|
if (mVideoFrameContainer) {
|
|
mVideoFrameContainer->ForgetElement();
|
|
}
|
|
UnregisterActivityObserver();
|
|
|
|
mSetCDMRequest.DisconnectIfExists();
|
|
mAllowedToPlayPromise.RejectIfExists(NS_ERROR_FAILURE, __func__);
|
|
|
|
if (mDecoder) {
|
|
ShutdownDecoder();
|
|
}
|
|
if (mProgressTimer) {
|
|
StopProgress();
|
|
}
|
|
if (mVideoDecodeSuspendTimer) {
|
|
mVideoDecodeSuspendTimer->Cancel();
|
|
mVideoDecodeSuspendTimer = nullptr;
|
|
}
|
|
if (mSrcStream) {
|
|
EndSrcMediaStreamPlayback();
|
|
}
|
|
|
|
if (mCaptureStreamPort) {
|
|
mCaptureStreamPort->Destroy();
|
|
mCaptureStreamPort = nullptr;
|
|
}
|
|
|
|
NS_ASSERTION(MediaElementTableCount(this, mLoadingSrc) == 0,
|
|
"Destroyed media element should no longer be in element table");
|
|
|
|
if (mChannelLoader) {
|
|
mChannelLoader->Cancel();
|
|
}
|
|
|
|
if (mAudioChannelWrapper) {
|
|
mAudioChannelWrapper->Shutdown();
|
|
mAudioChannelWrapper = nullptr;
|
|
}
|
|
|
|
WakeLockRelease();
|
|
ReportPlayedTimeAfterBlockedTelemetry();
|
|
|
|
DecoderDoctorLogger::LogDestruction(this);
|
|
}
|
|
|
|
void HTMLMediaElement::StopSuspendingAfterFirstFrame() {
|
|
mAllowSuspendAfterFirstFrame = false;
|
|
if (!mSuspendedAfterFirstFrame) return;
|
|
mSuspendedAfterFirstFrame = false;
|
|
if (mDecoder) {
|
|
mDecoder->Resume();
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::SetPlayedOrSeeked(bool aValue) {
|
|
if (aValue == mHasPlayedOrSeeked) {
|
|
return;
|
|
}
|
|
|
|
mHasPlayedOrSeeked = aValue;
|
|
|
|
// Force a reflow so that the poster frame hides or shows immediately.
|
|
nsIFrame* frame = GetPrimaryFrame();
|
|
if (!frame) {
|
|
return;
|
|
}
|
|
frame->PresShell()->FrameNeedsReflow(frame, IntrinsicDirty::TreeChange,
|
|
NS_FRAME_IS_DIRTY);
|
|
}
|
|
|
|
void HTMLMediaElement::NotifyXPCOMShutdown() { ShutdownDecoder(); }
|
|
|
|
bool HTMLMediaElement::AudioChannelAgentDelayingPlayback() {
|
|
return mAudioChannelWrapper && mAudioChannelWrapper->IsPlaybackBlocked();
|
|
}
|
|
|
|
void HTMLMediaElement::UpdateHadAudibleAutoplayState() {
|
|
// If we're audible, and autoplaying...
|
|
if ((Volume() > 0.0 && !Muted()) &&
|
|
(!OwnerDoc()->HasBeenUserGestureActivated() || Autoplay())) {
|
|
OwnerDoc()->SetDocTreeHadAudibleMedia();
|
|
if (AutoplayPolicy::WouldBeAllowedToPlayIfAutoplayDisabled(*this)) {
|
|
ScalarAdd(Telemetry::ScalarID::MEDIA_AUTOPLAY_WOULD_BE_ALLOWED_COUNT, 1);
|
|
if (mReadyState >= HAVE_METADATA && !HasAudio()) {
|
|
ScalarAdd(
|
|
Telemetry::ScalarID::MEDIA_ALLOWED_AUTOPLAY_NO_AUDIO_TRACK_COUNT,
|
|
1);
|
|
}
|
|
} else {
|
|
if (mReadyState < HAVE_METADATA) {
|
|
mBlockedAsWithoutMetadata = true;
|
|
ScalarAdd(Telemetry::ScalarID::MEDIA_BLOCKED_NO_METADATA, 1);
|
|
}
|
|
ScalarAdd(Telemetry::ScalarID::MEDIA_AUTOPLAY_WOULD_NOT_BE_ALLOWED_COUNT,
|
|
1);
|
|
}
|
|
}
|
|
}
|
|
|
|
already_AddRefed<Promise> HTMLMediaElement::Play(ErrorResult& aRv) {
|
|
LOG(LogLevel::Debug,
|
|
("%p Play() called by JS readyState=%d", this, mReadyState));
|
|
|
|
// 4.8.12.8
|
|
// When the play() method on a media element is invoked, the user agent must
|
|
// run the following steps.
|
|
|
|
RefPtr<PlayPromise> promise = CreatePlayPromise(aRv);
|
|
if (NS_WARN_IF(aRv.Failed())) {
|
|
return nullptr;
|
|
}
|
|
|
|
// 4.8.12.8 - Step 1:
|
|
// If the media element is not allowed to play, return a promise rejected
|
|
// with a "NotAllowedError" DOMException and abort these steps.
|
|
// NOTE: we may require requesting permission from the user, so we do the
|
|
// "not allowed" check below.
|
|
|
|
// 4.8.12.8 - Step 2:
|
|
// If the media element's error attribute is not null and its code
|
|
// attribute has the value MEDIA_ERR_SRC_NOT_SUPPORTED, return a promise
|
|
// rejected with a "NotSupportedError" DOMException and abort these steps.
|
|
if (GetError() && GetError()->Code() == MEDIA_ERR_SRC_NOT_SUPPORTED) {
|
|
LOG(LogLevel::Debug,
|
|
("%p Play() promise rejected because source not supported.", this));
|
|
promise->MaybeReject(NS_ERROR_DOM_MEDIA_NOT_SUPPORTED_ERR);
|
|
return promise.forget();
|
|
}
|
|
|
|
// 4.8.12.8 - Step 3:
|
|
// Let promise be a new promise and append promise to the list of pending
|
|
// play promises.
|
|
// Note: Promise appended to list of pending promises as needed below.
|
|
|
|
if (AudioChannelAgentDelayingPlayback()) {
|
|
// The audio channel agent may delay starting playback of a media resource
|
|
// until the tab the media element is in has been in the foreground.
|
|
// Save a reference to the promise, and return it. The AudioChannelAgent
|
|
// will call Play() again if the tab is brought to the foreground, or the
|
|
// audio tab indicator is clicked, which will resolve the promise if we end
|
|
// up playing.
|
|
LOG(LogLevel::Debug, ("%p Play() call delayed by AudioChannelAgent", this));
|
|
MaybeDoLoad();
|
|
mPendingPlayPromises.AppendElement(promise);
|
|
return promise.forget();
|
|
}
|
|
|
|
if (AudioChannelAgentBlockedPlay()) {
|
|
LOG(LogLevel::Debug, ("%p play blocked by AudioChannelAgent.", this));
|
|
promise->MaybeReject(NS_ERROR_DOM_MEDIA_NOT_ALLOWED_ERR);
|
|
return promise.forget();
|
|
}
|
|
|
|
UpdateHadAudibleAutoplayState();
|
|
|
|
const bool handlingUserInput = EventStateManager::IsHandlingUserInput();
|
|
mPendingPlayPromises.AppendElement(promise);
|
|
|
|
if (AutoplayPolicy::IsAllowedToPlay(*this)) {
|
|
AUTOPLAY_LOG("allow MediaElement %p to play", this);
|
|
mAllowedToPlayPromise.ResolveIfExists(true, __func__);
|
|
PlayInternal(handlingUserInput);
|
|
UpdateCustomPolicyAfterPlayed();
|
|
} else {
|
|
AUTOPLAY_LOG("reject MediaElement %p to play", this);
|
|
AsyncRejectPendingPlayPromises(NS_ERROR_DOM_MEDIA_NOT_ALLOWED_ERR);
|
|
}
|
|
return promise.forget();
|
|
}
|
|
|
|
void HTMLMediaElement::DispatchEventsWhenPlayWasNotAllowed() {
|
|
if (StaticPrefs::MediaBlockEventEnabled()) {
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("blocked"));
|
|
}
|
|
#if defined(MOZ_WIDGET_ANDROID)
|
|
RefPtr<AsyncEventDispatcher> asyncDispatcher = new AsyncEventDispatcher(
|
|
this, NS_LITERAL_STRING("MozAutoplayMediaBlocked"), CanBubble::eYes,
|
|
ChromeOnlyDispatch::eYes);
|
|
asyncDispatcher->PostDOMEvent();
|
|
#endif
|
|
OwnerDoc()->MaybeNotifyAutoplayBlocked();
|
|
ReportToConsole(nsIScriptError::warningFlag, "BlockAutoplayError");
|
|
mHasPlayEverBeenBlocked = true;
|
|
mHasEverBeenBlockedForAutoplay = true;
|
|
}
|
|
|
|
void HTMLMediaElement::PlayInternal(bool aHandlingUserInput) {
|
|
if (mPreloadAction == HTMLMediaElement::PRELOAD_NONE) {
|
|
// The media load algorithm will be initiated by a user interaction.
|
|
// We want to boost the channel priority for better responsiveness.
|
|
// Note this must be done before UpdatePreloadAction() which will
|
|
// update |mPreloadAction|.
|
|
mUseUrgentStartForChannel = true;
|
|
}
|
|
|
|
StopSuspendingAfterFirstFrame();
|
|
SetPlayedOrSeeked(true);
|
|
|
|
// 4.8.12.8 - Step 4:
|
|
// If the media element's networkState attribute has the value NETWORK_EMPTY,
|
|
// invoke the media element's resource selection algorithm.
|
|
MaybeDoLoad();
|
|
if (mSuspendedForPreloadNone) {
|
|
ResumeLoad(PRELOAD_ENOUGH);
|
|
}
|
|
|
|
// 4.8.12.8 - Step 5:
|
|
// If the playback has ended and the direction of playback is forwards,
|
|
// seek to the earliest possible position of the media resource.
|
|
|
|
// Even if we just did Load() or ResumeLoad(), we could already have a decoder
|
|
// here if we managed to clone an existing decoder.
|
|
if (mDecoder) {
|
|
if (mDecoder->IsEnded()) {
|
|
SetCurrentTime(0);
|
|
}
|
|
if (!mPausedForInactiveDocumentOrChannel) {
|
|
mDecoder->Play();
|
|
}
|
|
}
|
|
|
|
if (mCurrentPlayRangeStart == -1.0) {
|
|
mCurrentPlayRangeStart = CurrentTime();
|
|
}
|
|
|
|
const bool oldPaused = mPaused;
|
|
mPaused = false;
|
|
mAutoplaying = false;
|
|
|
|
// We changed mPaused and mAutoplaying which can affect AddRemoveSelfReference
|
|
// and our preload status.
|
|
AddRemoveSelfReference();
|
|
UpdatePreloadAction();
|
|
UpdateSrcMediaStreamPlaying();
|
|
|
|
// Once play() has been called in a user generated event handler,
|
|
// it is allowed to autoplay. Note: we can reach here when not in
|
|
// a user generated event handler if our readyState has not yet
|
|
// reached HAVE_METADATA.
|
|
mIsBlessed |= aHandlingUserInput;
|
|
|
|
// TODO: If the playback has ended, then the user agent must set
|
|
// seek to the effective start.
|
|
|
|
// 4.8.12.8 - Step 6:
|
|
// If the media element's paused attribute is true, run the following steps:
|
|
if (oldPaused) {
|
|
// 6.1. Change the value of paused to false. (Already done.)
|
|
// This step is uplifted because the "block-media-playback" feature needs
|
|
// the mPaused to be false before UpdateAudioChannelPlayingState() being
|
|
// called.
|
|
|
|
// 6.2. If the show poster flag is true, set the element's show poster flag
|
|
// to false and run the time marches on steps.
|
|
if (mShowPoster) {
|
|
mShowPoster = false;
|
|
if (mTextTrackManager) {
|
|
mTextTrackManager->TimeMarchesOn();
|
|
}
|
|
}
|
|
|
|
// 6.3. Queue a task to fire a simple event named play at the element.
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("play"));
|
|
|
|
// 6.4. If the media element's readyState attribute has the value
|
|
// HAVE_NOTHING, HAVE_METADATA, or HAVE_CURRENT_DATA, queue a task to
|
|
// fire a simple event named waiting at the element.
|
|
// Otherwise, the media element's readyState attribute has the value
|
|
// HAVE_FUTURE_DATA or HAVE_ENOUGH_DATA: notify about playing for the
|
|
// element.
|
|
switch (mReadyState) {
|
|
case HAVE_NOTHING:
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("waiting"));
|
|
break;
|
|
case HAVE_METADATA:
|
|
case HAVE_CURRENT_DATA:
|
|
FireTimeUpdate(false);
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("waiting"));
|
|
break;
|
|
case HAVE_FUTURE_DATA:
|
|
case HAVE_ENOUGH_DATA:
|
|
FireTimeUpdate(false);
|
|
NotifyAboutPlaying();
|
|
break;
|
|
}
|
|
} else if (mReadyState >= HAVE_FUTURE_DATA) {
|
|
// 7. Otherwise, if the media element's readyState attribute has the value
|
|
// HAVE_FUTURE_DATA or HAVE_ENOUGH_DATA, take pending play promises and
|
|
// queue a task to resolve pending play promises with the result.
|
|
AsyncResolvePendingPlayPromises();
|
|
}
|
|
|
|
// 8. Set the media element's autoplaying flag to false. (Already done.)
|
|
|
|
// 9. Return promise.
|
|
// (Done in caller.)
|
|
}
|
|
|
|
void HTMLMediaElement::MaybeDoLoad() {
|
|
if (mNetworkState == NETWORK_EMPTY) {
|
|
DoLoad();
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::UpdateWakeLock() {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
// Ensure we have a wake lock if we're playing audibly. This ensures the
|
|
// device doesn't sleep while playing.
|
|
bool playing = !mPaused;
|
|
bool isAudible = Volume() > 0.0 && !mMuted && mIsAudioTrackAudible;
|
|
// WakeLock when playing audible media.
|
|
if (playing && isAudible) {
|
|
CreateAudioWakeLockIfNeeded();
|
|
} else {
|
|
ReleaseAudioWakeLockIfExists();
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::CreateAudioWakeLockIfNeeded() {
|
|
if (!mWakeLock) {
|
|
RefPtr<power::PowerManagerService> pmService =
|
|
power::PowerManagerService::GetInstance();
|
|
NS_ENSURE_TRUE_VOID(pmService);
|
|
|
|
ErrorResult rv;
|
|
mWakeLock = pmService->NewWakeLock(NS_LITERAL_STRING("audio-playing"),
|
|
OwnerDoc()->GetInnerWindow(), rv);
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::ReleaseAudioWakeLockIfExists() {
|
|
if (mWakeLock) {
|
|
ErrorResult rv;
|
|
mWakeLock->Unlock(rv);
|
|
rv.SuppressException();
|
|
mWakeLock = nullptr;
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::WakeLockRelease() { ReleaseAudioWakeLockIfExists(); }
|
|
|
|
HTMLMediaElement::OutputMediaStream::OutputMediaStream()
|
|
: mNextAvailableTrackID(1),
|
|
mFinishWhenEnded(false),
|
|
mCapturingAudioOnly(false),
|
|
mCapturingDecoder(false),
|
|
mCapturingMediaStream(false) {}
|
|
|
|
HTMLMediaElement::OutputMediaStream::~OutputMediaStream() {
|
|
for (auto pair : mTrackPorts) {
|
|
pair.second()->Destroy();
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::GetEventTargetParent(EventChainPreVisitor& aVisitor) {
|
|
if (!this->Controls() || !aVisitor.mEvent->mFlags.mIsTrusted) {
|
|
nsGenericHTMLElement::GetEventTargetParent(aVisitor);
|
|
return;
|
|
}
|
|
|
|
HTMLInputElement* el = nullptr;
|
|
nsCOMPtr<nsINode> node;
|
|
|
|
// We will need to trap pointer, touch, and mouse events within the media
|
|
// element, allowing media control exclusive consumption on these events,
|
|
// and preventing the content from handling them.
|
|
switch (aVisitor.mEvent->mMessage) {
|
|
case ePointerDown:
|
|
case ePointerUp:
|
|
case eTouchEnd:
|
|
// Always prevent touchmove captured in video element from being handled by
|
|
// content, since we always do that for touchstart.
|
|
case eTouchMove:
|
|
case eTouchStart:
|
|
case eMouseClick:
|
|
case eMouseDoubleClick:
|
|
case eMouseDown:
|
|
case eMouseUp:
|
|
aVisitor.mCanHandle = false;
|
|
return;
|
|
|
|
// The *move events however are only comsumed when the range input is being
|
|
// dragged.
|
|
case ePointerMove:
|
|
case eMouseMove:
|
|
node = do_QueryInterface(aVisitor.mEvent->mOriginalTarget);
|
|
if (node->IsInNativeAnonymousSubtree() || node->IsInUAWidget()) {
|
|
if (node->IsHTMLElement(nsGkAtoms::input)) {
|
|
// The node is a <input type="range">
|
|
el = static_cast<HTMLInputElement*>(node.get());
|
|
} else if (node->GetParentNode() &&
|
|
node->GetParentNode()->IsHTMLElement(nsGkAtoms::input)) {
|
|
// The node is a child of <input type="range">
|
|
el = static_cast<HTMLInputElement*>(node->GetParentNode());
|
|
}
|
|
}
|
|
if (el && el->IsDraggingRange()) {
|
|
aVisitor.mCanHandle = false;
|
|
return;
|
|
}
|
|
nsGenericHTMLElement::GetEventTargetParent(aVisitor);
|
|
return;
|
|
|
|
default:
|
|
nsGenericHTMLElement::GetEventTargetParent(aVisitor);
|
|
return;
|
|
}
|
|
}
|
|
|
|
bool HTMLMediaElement::ParseAttribute(int32_t aNamespaceID, nsAtom* aAttribute,
|
|
const nsAString& aValue,
|
|
nsIPrincipal* aMaybeScriptedPrincipal,
|
|
nsAttrValue& aResult) {
|
|
// Mappings from 'preload' attribute strings to an enumeration.
|
|
static const nsAttrValue::EnumTable kPreloadTable[] = {
|
|
{"", HTMLMediaElement::PRELOAD_ATTR_EMPTY},
|
|
{"none", HTMLMediaElement::PRELOAD_ATTR_NONE},
|
|
{"metadata", HTMLMediaElement::PRELOAD_ATTR_METADATA},
|
|
{"auto", HTMLMediaElement::PRELOAD_ATTR_AUTO},
|
|
{nullptr, 0}};
|
|
|
|
if (aNamespaceID == kNameSpaceID_None) {
|
|
if (ParseImageAttribute(aAttribute, aValue, aResult)) {
|
|
return true;
|
|
}
|
|
if (aAttribute == nsGkAtoms::crossorigin) {
|
|
ParseCORSValue(aValue, aResult);
|
|
return true;
|
|
}
|
|
if (aAttribute == nsGkAtoms::preload) {
|
|
return aResult.ParseEnumValue(aValue, kPreloadTable, false);
|
|
}
|
|
}
|
|
|
|
return nsGenericHTMLElement::ParseAttribute(aNamespaceID, aAttribute, aValue,
|
|
aMaybeScriptedPrincipal, aResult);
|
|
}
|
|
|
|
void HTMLMediaElement::DoneCreatingElement() {
|
|
if (HasAttr(kNameSpaceID_None, nsGkAtoms::muted)) {
|
|
mMuted |= MUTED_BY_CONTENT;
|
|
}
|
|
}
|
|
|
|
bool HTMLMediaElement::IsHTMLFocusable(bool aWithMouse, bool* aIsFocusable,
|
|
int32_t* aTabIndex) {
|
|
if (nsGenericHTMLElement::IsHTMLFocusable(aWithMouse, aIsFocusable,
|
|
aTabIndex)) {
|
|
return true;
|
|
}
|
|
|
|
*aIsFocusable = true;
|
|
return false;
|
|
}
|
|
|
|
int32_t HTMLMediaElement::TabIndexDefault() { return 0; }
|
|
|
|
nsresult HTMLMediaElement::AfterSetAttr(int32_t aNameSpaceID, nsAtom* aName,
|
|
const nsAttrValue* aValue,
|
|
const nsAttrValue* aOldValue,
|
|
nsIPrincipal* aMaybeScriptedPrincipal,
|
|
bool aNotify) {
|
|
if (aNameSpaceID == kNameSpaceID_None) {
|
|
if (aName == nsGkAtoms::src) {
|
|
mSrcMediaSource = nullptr;
|
|
mSrcAttrTriggeringPrincipal = nsContentUtils::GetAttrTriggeringPrincipal(
|
|
this, aValue ? aValue->GetStringValue() : EmptyString(),
|
|
aMaybeScriptedPrincipal);
|
|
if (aValue) {
|
|
nsString srcStr = aValue->GetStringValue();
|
|
nsCOMPtr<nsIURI> uri;
|
|
NewURIFromString(srcStr, getter_AddRefs(uri));
|
|
if (uri && IsMediaSourceURI(uri)) {
|
|
nsresult rv = NS_GetSourceForMediaSourceURI(
|
|
uri, getter_AddRefs(mSrcMediaSource));
|
|
if (NS_FAILED(rv)) {
|
|
nsAutoString spec;
|
|
GetCurrentSrc(spec);
|
|
const char16_t* params[] = {spec.get()};
|
|
ReportLoadError("MediaLoadInvalidURI", params, ArrayLength(params));
|
|
}
|
|
}
|
|
}
|
|
} else if (aName == nsGkAtoms::autoplay) {
|
|
if (aNotify) {
|
|
if (aValue) {
|
|
StopSuspendingAfterFirstFrame();
|
|
CheckAutoplayDataReady();
|
|
}
|
|
// This attribute can affect AddRemoveSelfReference
|
|
AddRemoveSelfReference();
|
|
UpdatePreloadAction();
|
|
}
|
|
} else if (aName == nsGkAtoms::preload) {
|
|
UpdatePreloadAction();
|
|
} else if (aName == nsGkAtoms::loop) {
|
|
if (mDecoder) {
|
|
mDecoder->SetLooping(!!aValue);
|
|
}
|
|
} else if (aName == nsGkAtoms::controls && IsInComposedDoc()) {
|
|
NotifyUAWidgetSetupOrChange();
|
|
}
|
|
}
|
|
|
|
// Since AfterMaybeChangeAttr may call DoLoad, make sure that it is called
|
|
// *after* any possible changes to mSrcMediaSource.
|
|
if (aValue) {
|
|
AfterMaybeChangeAttr(aNameSpaceID, aName, aNotify);
|
|
}
|
|
|
|
return nsGenericHTMLElement::AfterSetAttr(
|
|
aNameSpaceID, aName, aValue, aOldValue, aMaybeScriptedPrincipal, aNotify);
|
|
}
|
|
|
|
nsresult HTMLMediaElement::OnAttrSetButNotChanged(
|
|
int32_t aNamespaceID, nsAtom* aName, const nsAttrValueOrString& aValue,
|
|
bool aNotify) {
|
|
AfterMaybeChangeAttr(aNamespaceID, aName, aNotify);
|
|
|
|
return nsGenericHTMLElement::OnAttrSetButNotChanged(aNamespaceID, aName,
|
|
aValue, aNotify);
|
|
}
|
|
|
|
void HTMLMediaElement::AfterMaybeChangeAttr(int32_t aNamespaceID, nsAtom* aName,
|
|
bool aNotify) {
|
|
if (aNamespaceID == kNameSpaceID_None) {
|
|
if (aName == nsGkAtoms::src) {
|
|
DoLoad();
|
|
}
|
|
}
|
|
}
|
|
|
|
nsresult HTMLMediaElement::BindToTree(Document* aDocument, nsIContent* aParent,
|
|
nsIContent* aBindingParent) {
|
|
nsresult rv =
|
|
nsGenericHTMLElement::BindToTree(aDocument, aParent, aBindingParent);
|
|
|
|
if (IsInComposedDoc()) {
|
|
// Construct Shadow Root so web content can be hidden in the DOM.
|
|
AttachAndSetUAShadowRoot();
|
|
NotifyUAWidgetSetupOrChange();
|
|
}
|
|
|
|
mUnboundFromTree = false;
|
|
|
|
if (aDocument) {
|
|
// The preload action depends on the value of the autoplay attribute.
|
|
// It's value may have changed, so update it.
|
|
UpdatePreloadAction();
|
|
}
|
|
|
|
NotifyDecoderActivityChanges();
|
|
|
|
return rv;
|
|
}
|
|
|
|
/* static */
|
|
void HTMLMediaElement::VideoDecodeSuspendTimerCallback(nsITimer* aTimer,
|
|
void* aClosure) {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
auto element = static_cast<HTMLMediaElement*>(aClosure);
|
|
element->mVideoDecodeSuspendTime.Start();
|
|
element->mVideoDecodeSuspendTimer = nullptr;
|
|
}
|
|
|
|
void HTMLMediaElement::HiddenVideoStart() {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
mHiddenPlayTime.Start();
|
|
if (mVideoDecodeSuspendTimer) {
|
|
// Already started, just keep it running.
|
|
return;
|
|
}
|
|
NS_NewTimerWithFuncCallback(
|
|
getter_AddRefs(mVideoDecodeSuspendTimer), VideoDecodeSuspendTimerCallback,
|
|
this, StaticPrefs::MediaSuspendBkgndVideoDelayMs(),
|
|
nsITimer::TYPE_ONE_SHOT,
|
|
"HTMLMediaElement::VideoDecodeSuspendTimerCallback",
|
|
mMainThreadEventTarget);
|
|
}
|
|
|
|
void HTMLMediaElement::HiddenVideoStop() {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
mHiddenPlayTime.Pause();
|
|
mVideoDecodeSuspendTime.Pause();
|
|
if (!mVideoDecodeSuspendTimer) {
|
|
return;
|
|
}
|
|
mVideoDecodeSuspendTimer->Cancel();
|
|
mVideoDecodeSuspendTimer = nullptr;
|
|
}
|
|
|
|
void HTMLMediaElement::ReportTelemetry() {
|
|
// Report telemetry for videos when a page is unloaded. We
|
|
// want to know data on what state the video is at when
|
|
// the user has exited.
|
|
enum UnloadedState {
|
|
ENDED = 0,
|
|
PAUSED = 1,
|
|
STALLED = 2,
|
|
SEEKING = 3,
|
|
OTHER = 4
|
|
};
|
|
|
|
UnloadedState state = OTHER;
|
|
if (Seeking()) {
|
|
state = SEEKING;
|
|
} else if (Ended()) {
|
|
state = ENDED;
|
|
} else if (Paused()) {
|
|
state = PAUSED;
|
|
} else {
|
|
// For buffering we check if the current playback position is at the end
|
|
// of a buffered range, within a margin of error. We also consider to be
|
|
// buffering if the last frame status was buffering and the ready state is
|
|
// HAVE_CURRENT_DATA to account for times where we are in a buffering state
|
|
// regardless of what actual data we have buffered.
|
|
bool stalled = false;
|
|
RefPtr<TimeRanges> ranges = Buffered();
|
|
const double errorMargin = 0.05;
|
|
double t = CurrentTime();
|
|
TimeRanges::index_type index = ranges->Find(t, errorMargin);
|
|
stalled =
|
|
index != TimeRanges::NoIndex && (ranges->End(index) - t) < errorMargin;
|
|
stalled |= mDecoder &&
|
|
NextFrameStatus() ==
|
|
MediaDecoderOwner::NEXT_FRAME_UNAVAILABLE_BUFFERING &&
|
|
mReadyState == HAVE_CURRENT_DATA;
|
|
if (stalled) {
|
|
state = STALLED;
|
|
}
|
|
}
|
|
|
|
Telemetry::Accumulate(Telemetry::VIDEO_UNLOAD_STATE, state);
|
|
LOG(LogLevel::Debug, ("%p VIDEO_UNLOAD_STATE = %d", this, state));
|
|
|
|
FrameStatisticsData data;
|
|
|
|
if (HTMLVideoElement* vid = HTMLVideoElement::FromNodeOrNull(this)) {
|
|
FrameStatistics* stats = vid->GetFrameStatistics();
|
|
if (stats) {
|
|
data = stats->GetFrameStatisticsData();
|
|
uint64_t parsedFrames = stats->GetParsedFrames();
|
|
if (parsedFrames) {
|
|
uint64_t droppedFrames = stats->GetDroppedFrames();
|
|
MOZ_ASSERT(droppedFrames <= parsedFrames);
|
|
// Dropped frames <= total frames, so 'percentage' cannot be higher than
|
|
// 100 and therefore can fit in a uint32_t (that Telemetry takes).
|
|
uint32_t percentage = 100 * droppedFrames / parsedFrames;
|
|
LOG(LogLevel::Debug,
|
|
("Reporting telemetry DROPPED_FRAMES_IN_VIDEO_PLAYBACK"));
|
|
Telemetry::Accumulate(Telemetry::VIDEO_DROPPED_FRAMES_PROPORTION,
|
|
percentage);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (mMediaInfo.HasVideo() && mMediaInfo.mVideo.mImage.height > 0) {
|
|
// We have a valid video.
|
|
double playTime = mPlayTime.Total();
|
|
double hiddenPlayTime = mHiddenPlayTime.Total();
|
|
double videoDecodeSuspendTime = mVideoDecodeSuspendTime.Total();
|
|
|
|
Telemetry::Accumulate(Telemetry::VIDEO_PLAY_TIME_MS,
|
|
SECONDS_TO_MS(playTime));
|
|
LOG(LogLevel::Debug, ("%p VIDEO_PLAY_TIME_MS = %f", this, playTime));
|
|
|
|
Telemetry::Accumulate(Telemetry::VIDEO_HIDDEN_PLAY_TIME_MS,
|
|
SECONDS_TO_MS(hiddenPlayTime));
|
|
LOG(LogLevel::Debug,
|
|
("%p VIDEO_HIDDEN_PLAY_TIME_MS = %f", this, hiddenPlayTime));
|
|
|
|
if (playTime > 0.0) {
|
|
// We have actually played something -> Report some valid-video telemetry.
|
|
|
|
// Keyed by audio+video or video alone, and by a resolution range.
|
|
nsCString key(mMediaInfo.HasAudio() ? "AV," : "V,");
|
|
static const struct {
|
|
int32_t mH;
|
|
const char* mRes;
|
|
} sResolutions[] = {{240, "0<h<=240"}, {480, "240<h<=480"},
|
|
{576, "480<h<=576"}, {720, "576<h<=720"},
|
|
{1080, "720<h<=1080"}, {2160, "1080<h<=2160"}};
|
|
const char* resolution = "h>2160";
|
|
int32_t height = mMediaInfo.mVideo.mImage.height;
|
|
for (const auto& res : sResolutions) {
|
|
if (height <= res.mH) {
|
|
resolution = res.mRes;
|
|
break;
|
|
}
|
|
}
|
|
key.AppendASCII(resolution);
|
|
|
|
uint32_t hiddenPercentage =
|
|
uint32_t(hiddenPlayTime / playTime * 100.0 + 0.5);
|
|
Telemetry::Accumulate(Telemetry::VIDEO_HIDDEN_PLAY_TIME_PERCENTAGE, key,
|
|
hiddenPercentage);
|
|
// Also accumulate all percentages in an "All" key.
|
|
Telemetry::Accumulate(Telemetry::VIDEO_HIDDEN_PLAY_TIME_PERCENTAGE,
|
|
NS_LITERAL_CSTRING("All"), hiddenPercentage);
|
|
LOG(LogLevel::Debug,
|
|
("%p VIDEO_HIDDEN_PLAY_TIME_PERCENTAGE = %u, keys: '%s' and 'All'",
|
|
this, hiddenPercentage, key.get()));
|
|
|
|
uint32_t videoDecodeSuspendPercentage =
|
|
uint32_t(videoDecodeSuspendTime / playTime * 100.0 + 0.5);
|
|
Telemetry::Accumulate(Telemetry::VIDEO_INFERRED_DECODE_SUSPEND_PERCENTAGE,
|
|
key, videoDecodeSuspendPercentage);
|
|
Telemetry::Accumulate(Telemetry::VIDEO_INFERRED_DECODE_SUSPEND_PERCENTAGE,
|
|
NS_LITERAL_CSTRING("All"),
|
|
videoDecodeSuspendPercentage);
|
|
LOG(LogLevel::Debug,
|
|
("%p VIDEO_INFERRED_DECODE_SUSPEND_PERCENTAGE = %u, keys: '%s' and "
|
|
"'All'",
|
|
this, videoDecodeSuspendPercentage, key.get()));
|
|
|
|
if (data.mInterKeyframeCount != 0) {
|
|
uint32_t average_ms = uint32_t(std::min<uint64_t>(
|
|
double(data.mInterKeyframeSum_us) /
|
|
double(data.mInterKeyframeCount) / 1000.0 +
|
|
0.5,
|
|
UINT32_MAX));
|
|
Telemetry::Accumulate(Telemetry::VIDEO_INTER_KEYFRAME_AVERAGE_MS, key,
|
|
average_ms);
|
|
Telemetry::Accumulate(Telemetry::VIDEO_INTER_KEYFRAME_AVERAGE_MS,
|
|
NS_LITERAL_CSTRING("All"), average_ms);
|
|
LOG(LogLevel::Debug,
|
|
("%p VIDEO_INTER_KEYFRAME_AVERAGE_MS = %u, keys: '%s' and 'All'",
|
|
this, average_ms, key.get()));
|
|
|
|
uint32_t max_ms = uint32_t(std::min<uint64_t>(
|
|
(data.mInterKeyFrameMax_us + 500) / 1000, UINT32_MAX));
|
|
Telemetry::Accumulate(Telemetry::VIDEO_INTER_KEYFRAME_MAX_MS, key,
|
|
max_ms);
|
|
Telemetry::Accumulate(Telemetry::VIDEO_INTER_KEYFRAME_MAX_MS,
|
|
NS_LITERAL_CSTRING("All"), max_ms);
|
|
LOG(LogLevel::Debug,
|
|
("%p VIDEO_INTER_KEYFRAME_MAX_MS = %u, keys: '%s' and 'All'", this,
|
|
max_ms, key.get()));
|
|
} else {
|
|
// Here, we have played *some* of the video, but didn't get more than 1
|
|
// keyframe. Report '0' if we have played for longer than the video-
|
|
// decode-suspend delay (showing recovery would be difficult).
|
|
uint32_t suspendDelay_ms = StaticPrefs::MediaSuspendBkgndVideoDelayMs();
|
|
if (uint32_t(playTime * 1000.0) > suspendDelay_ms) {
|
|
Telemetry::Accumulate(Telemetry::VIDEO_INTER_KEYFRAME_MAX_MS, key, 0);
|
|
Telemetry::Accumulate(Telemetry::VIDEO_INTER_KEYFRAME_MAX_MS,
|
|
NS_LITERAL_CSTRING("All"), 0);
|
|
LOG(LogLevel::Debug,
|
|
("%p VIDEO_INTER_KEYFRAME_MAX_MS = 0 (only 1 keyframe), keys: "
|
|
"'%s' and 'All'",
|
|
this, key.get()));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::UnbindFromTree(bool aDeep, bool aNullParent) {
|
|
mUnboundFromTree = true;
|
|
mVisibilityState = Visibility::Untracked;
|
|
|
|
if (IsInComposedDoc()) {
|
|
NotifyUAWidgetTeardown();
|
|
}
|
|
|
|
nsGenericHTMLElement::UnbindFromTree(aDeep, aNullParent);
|
|
|
|
MOZ_ASSERT(IsHidden());
|
|
NotifyDecoderActivityChanges();
|
|
|
|
RefPtr<HTMLMediaElement> self(this);
|
|
nsCOMPtr<nsIRunnable> task =
|
|
NS_NewRunnableFunction("dom::HTMLMediaElement::UnbindFromTree", [self]() {
|
|
if (self->mUnboundFromTree) {
|
|
self->Pause();
|
|
}
|
|
});
|
|
RunInStableState(task);
|
|
}
|
|
|
|
/* static */
|
|
CanPlayStatus HTMLMediaElement::GetCanPlay(
|
|
const nsAString& aType, DecoderDoctorDiagnostics* aDiagnostics) {
|
|
Maybe<MediaContainerType> containerType = MakeMediaContainerType(aType);
|
|
if (!containerType) {
|
|
return CANPLAY_NO;
|
|
}
|
|
CanPlayStatus status =
|
|
DecoderTraits::CanHandleContainerType(*containerType, aDiagnostics);
|
|
if (status == CANPLAY_YES &&
|
|
(*containerType).ExtendedType().Codecs().IsEmpty()) {
|
|
// Per spec: 'Generally, a user agent should never return "probably" for a
|
|
// type that allows the `codecs` parameter if that parameter is not
|
|
// present.' As all our currently-supported types allow for `codecs`, we can
|
|
// do this check here.
|
|
// TODO: Instead, missing `codecs` should be checked in each decoder's
|
|
// `IsSupportedType` call from `CanHandleCodecsType()`.
|
|
// See bug 1399023.
|
|
return CANPLAY_MAYBE;
|
|
}
|
|
return status;
|
|
}
|
|
|
|
void HTMLMediaElement::CanPlayType(const nsAString& aType, nsAString& aResult) {
|
|
DecoderDoctorDiagnostics diagnostics;
|
|
CanPlayStatus canPlay = GetCanPlay(aType, &diagnostics);
|
|
diagnostics.StoreFormatDiagnostics(OwnerDoc(), aType, canPlay != CANPLAY_NO,
|
|
__func__);
|
|
switch (canPlay) {
|
|
case CANPLAY_NO:
|
|
aResult.Truncate();
|
|
break;
|
|
case CANPLAY_YES:
|
|
aResult.AssignLiteral("probably");
|
|
break;
|
|
case CANPLAY_MAYBE:
|
|
aResult.AssignLiteral("maybe");
|
|
break;
|
|
default:
|
|
MOZ_ASSERT_UNREACHABLE("Unexpected case.");
|
|
break;
|
|
}
|
|
|
|
LOG(LogLevel::Debug,
|
|
("%p CanPlayType(%s) = \"%s\"", this, NS_ConvertUTF16toUTF8(aType).get(),
|
|
NS_ConvertUTF16toUTF8(aResult).get()));
|
|
}
|
|
|
|
void HTMLMediaElement::AssertReadyStateIsNothing() {
|
|
#ifdef MOZ_DIAGNOSTIC_ASSERT_ENABLED
|
|
if (mReadyState != HAVE_NOTHING) {
|
|
char buf[1024];
|
|
SprintfLiteral(buf,
|
|
"readyState=%d networkState=%d mLoadWaitStatus=%d "
|
|
"mSourceLoadCandidate=%d "
|
|
"mIsLoadingFromSourceChildren=%d mPreloadAction=%d "
|
|
"mSuspendedForPreloadNone=%d error=%d",
|
|
int(mReadyState), int(mNetworkState), int(mLoadWaitStatus),
|
|
!!mSourceLoadCandidate, mIsLoadingFromSourceChildren,
|
|
int(mPreloadAction), mSuspendedForPreloadNone,
|
|
GetError() ? GetError()->Code() : 0);
|
|
MOZ_CRASH_UNSAFE_PRINTF("ReadyState should be HAVE_NOTHING! %s", buf);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
nsresult HTMLMediaElement::InitializeDecoderAsClone(
|
|
ChannelMediaDecoder* aOriginal) {
|
|
NS_ASSERTION(mLoadingSrc, "mLoadingSrc must already be set");
|
|
NS_ASSERTION(mDecoder == nullptr, "Shouldn't have a decoder");
|
|
AssertReadyStateIsNothing();
|
|
|
|
MediaDecoderInit decoderInit(
|
|
this, mMuted ? 0.0 : mVolume, mPreservesPitch,
|
|
ClampPlaybackRate(mPlaybackRate),
|
|
mPreloadAction == HTMLMediaElement::PRELOAD_METADATA, mHasSuspendTaint,
|
|
HasAttr(kNameSpaceID_None, nsGkAtoms::loop), aOriginal->ContainerType());
|
|
|
|
RefPtr<ChannelMediaDecoder> decoder = aOriginal->Clone(decoderInit);
|
|
if (!decoder) return NS_ERROR_FAILURE;
|
|
|
|
LOG(LogLevel::Debug,
|
|
("%p Cloned decoder %p from %p", this, decoder.get(), aOriginal));
|
|
|
|
return FinishDecoderSetup(decoder);
|
|
}
|
|
|
|
template <typename DecoderType, typename... LoadArgs>
|
|
nsresult HTMLMediaElement::SetupDecoder(DecoderType* aDecoder,
|
|
LoadArgs&&... aArgs) {
|
|
LOG(LogLevel::Debug, ("%p Created decoder %p for type %s", this, aDecoder,
|
|
aDecoder->ContainerType().OriginalString().Data()));
|
|
|
|
nsresult rv = aDecoder->Load(std::forward<LoadArgs>(aArgs)...);
|
|
if (NS_FAILED(rv)) {
|
|
aDecoder->Shutdown();
|
|
LOG(LogLevel::Debug, ("%p Failed to load for decoder %p", this, aDecoder));
|
|
return rv;
|
|
}
|
|
|
|
rv = FinishDecoderSetup(aDecoder);
|
|
// Only ChannelMediaDecoder supports resource cloning.
|
|
if (IsSame<DecoderType, ChannelMediaDecoder>::value && NS_SUCCEEDED(rv)) {
|
|
AddMediaElementToURITable();
|
|
NS_ASSERTION(
|
|
MediaElementTableCount(this, mLoadingSrc) == 1,
|
|
"Media element should have single table entry if decode initialized");
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
nsresult HTMLMediaElement::InitializeDecoderForChannel(
|
|
nsIChannel* aChannel, nsIStreamListener** aListener) {
|
|
NS_ASSERTION(mLoadingSrc, "mLoadingSrc must already be set");
|
|
AssertReadyStateIsNothing();
|
|
|
|
DecoderDoctorDiagnostics diagnostics;
|
|
|
|
nsAutoCString mimeType;
|
|
aChannel->GetContentType(mimeType);
|
|
NS_ASSERTION(!mimeType.IsEmpty(), "We should have the Content-Type.");
|
|
NS_ConvertUTF8toUTF16 mimeUTF16(mimeType);
|
|
|
|
RefPtr<HTMLMediaElement> self = this;
|
|
auto reportCanPlay = [&, self](bool aCanPlay) {
|
|
diagnostics.StoreFormatDiagnostics(self->OwnerDoc(), mimeUTF16, aCanPlay,
|
|
__func__);
|
|
if (!aCanPlay) {
|
|
nsAutoString src;
|
|
self->GetCurrentSrc(src);
|
|
const char16_t* params[] = {mimeUTF16.get(), src.get()};
|
|
self->ReportLoadError("MediaLoadUnsupportedMimeType", params,
|
|
ArrayLength(params));
|
|
}
|
|
};
|
|
|
|
auto onExit = MakeScopeExit([self] {
|
|
if (self->mChannelLoader) {
|
|
self->mChannelLoader->Done();
|
|
self->mChannelLoader = nullptr;
|
|
}
|
|
});
|
|
|
|
Maybe<MediaContainerType> containerType = MakeMediaContainerType(mimeType);
|
|
if (!containerType) {
|
|
reportCanPlay(false);
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
MediaDecoderInit decoderInit(
|
|
this, mMuted ? 0.0 : mVolume, mPreservesPitch,
|
|
ClampPlaybackRate(mPlaybackRate),
|
|
mPreloadAction == HTMLMediaElement::PRELOAD_METADATA, mHasSuspendTaint,
|
|
HasAttr(kNameSpaceID_None, nsGkAtoms::loop), *containerType);
|
|
|
|
#ifdef MOZ_ANDROID_HLS_SUPPORT
|
|
if (HLSDecoder::IsSupportedType(*containerType)) {
|
|
RefPtr<HLSDecoder> decoder = HLSDecoder::Create(decoderInit);
|
|
if (!decoder) {
|
|
reportCanPlay(false);
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
reportCanPlay(true);
|
|
return SetupDecoder(decoder.get(), aChannel);
|
|
}
|
|
#endif
|
|
|
|
RefPtr<ChannelMediaDecoder> decoder =
|
|
ChannelMediaDecoder::Create(decoderInit, &diagnostics);
|
|
if (!decoder) {
|
|
reportCanPlay(false);
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
reportCanPlay(true);
|
|
bool isPrivateBrowsing = NodePrincipal()->GetPrivateBrowsingId() > 0;
|
|
return SetupDecoder(decoder.get(), aChannel, isPrivateBrowsing, aListener);
|
|
}
|
|
|
|
nsresult HTMLMediaElement::FinishDecoderSetup(MediaDecoder* aDecoder) {
|
|
ChangeNetworkState(NETWORK_LOADING);
|
|
|
|
// Set mDecoder now so if methods like GetCurrentSrc get called between
|
|
// here and Load(), they work.
|
|
SetDecoder(aDecoder);
|
|
|
|
// Notify the decoder of the initial activity status.
|
|
NotifyDecoderActivityChanges();
|
|
|
|
// Update decoder principal before we start decoding, since it
|
|
// can affect how we feed data to MediaStreams
|
|
NotifyDecoderPrincipalChanged();
|
|
|
|
// Set sink device if we have one. Otherwise the default is used.
|
|
if (mSink.second()) {
|
|
mDecoder
|
|
->SetSink(mSink.second())
|
|
#ifdef DEBUG
|
|
->Then(mAbstractMainThread, __func__,
|
|
[](const GenericPromise::ResolveOrRejectValue& aValue) {
|
|
MOZ_ASSERT(aValue.IsResolve() && !aValue.ResolveValue());
|
|
});
|
|
#else
|
|
;
|
|
#endif
|
|
}
|
|
|
|
// Set CORSMode now before any streams are added. It won't change over time.
|
|
mDecoder->SetOutputStreamCORSMode(mCORSMode);
|
|
|
|
if (!mOutputStreams.IsEmpty()) {
|
|
mDecoder->SetNextOutputStreamTrackID(
|
|
mNextAvailableMediaDecoderOutputTrackID);
|
|
}
|
|
|
|
for (OutputMediaStream& ms : mOutputStreams) {
|
|
if (ms.mCapturingMediaStream) {
|
|
MOZ_ASSERT(!ms.mCapturingDecoder);
|
|
continue;
|
|
}
|
|
|
|
ms.mCapturingDecoder = true;
|
|
aDecoder->AddOutputStream(ms.mStream);
|
|
}
|
|
|
|
if (mMediaKeys) {
|
|
if (mMediaKeys->GetCDMProxy()) {
|
|
mDecoder->SetCDMProxy(mMediaKeys->GetCDMProxy());
|
|
} else {
|
|
// CDM must have crashed.
|
|
ShutdownDecoder();
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
|
|
if (mChannelLoader) {
|
|
mChannelLoader->Done();
|
|
mChannelLoader = nullptr;
|
|
}
|
|
|
|
// We may want to suspend the new stream now.
|
|
// This will also do an AddRemoveSelfReference.
|
|
NotifyOwnerDocumentActivityChanged();
|
|
|
|
if (mPausedForInactiveDocumentOrChannel) {
|
|
mDecoder->Suspend();
|
|
}
|
|
|
|
if (!mPaused) {
|
|
SetPlayedOrSeeked(true);
|
|
if (!mPausedForInactiveDocumentOrChannel) {
|
|
mDecoder->Play();
|
|
}
|
|
}
|
|
|
|
MaybeBeginCloningVisually();
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
class HTMLMediaElement::MediaStreamTrackListener
|
|
: public DOMMediaStream::TrackListener {
|
|
public:
|
|
explicit MediaStreamTrackListener(HTMLMediaElement* aElement)
|
|
: mElement(aElement) {}
|
|
|
|
void NotifyTrackAdded(const RefPtr<MediaStreamTrack>& aTrack) override {
|
|
if (!mElement) {
|
|
return;
|
|
}
|
|
mElement->NotifyMediaStreamTrackAdded(aTrack);
|
|
}
|
|
|
|
void NotifyTrackRemoved(const RefPtr<MediaStreamTrack>& aTrack) override {
|
|
if (!mElement) {
|
|
return;
|
|
}
|
|
mElement->NotifyMediaStreamTrackRemoved(aTrack);
|
|
}
|
|
|
|
void NotifyActive() override {
|
|
if (!mElement) {
|
|
return;
|
|
}
|
|
LOG(LogLevel::Debug, ("%p, mSrcStream %p became active", mElement.get(),
|
|
mElement->mSrcStream.get()));
|
|
mElement->CheckAutoplayDataReady();
|
|
}
|
|
|
|
void NotifyInactive() override {
|
|
if (!mElement) {
|
|
return;
|
|
}
|
|
if (mElement->IsPlaybackEnded()) {
|
|
return;
|
|
}
|
|
LOG(LogLevel::Debug, ("%p, mSrcStream %p became inactive", mElement.get(),
|
|
mElement->mSrcStream.get()));
|
|
MOZ_ASSERT(!mElement->mSrcStream->Active());
|
|
mElement->PlaybackEnded();
|
|
mElement->UpdateReadyStateInternal();
|
|
}
|
|
|
|
protected:
|
|
const WeakPtr<HTMLMediaElement> mElement;
|
|
};
|
|
|
|
void HTMLMediaElement::UpdateSrcMediaStreamPlaying(uint32_t aFlags) {
|
|
if (!mSrcStream) {
|
|
return;
|
|
}
|
|
// We might be in cycle collection with mSrcStream->GetPlaybackStream()
|
|
// already returning null due to unlinking.
|
|
|
|
MediaStream* stream = GetSrcMediaStream();
|
|
MediaStreamGraph* graph = stream ? stream->Graph() : nullptr;
|
|
bool shouldPlay = !(aFlags & REMOVING_SRC_STREAM) && !mPaused &&
|
|
!mPausedForInactiveDocumentOrChannel && stream;
|
|
if (shouldPlay == mSrcStreamIsPlaying) {
|
|
return;
|
|
}
|
|
mSrcStreamIsPlaying = shouldPlay;
|
|
|
|
LOG(LogLevel::Debug,
|
|
("MediaElement %p %s playback of DOMMediaStream %p", this,
|
|
shouldPlay ? "Setting up" : "Removing", mSrcStream.get()));
|
|
|
|
if (shouldPlay) {
|
|
mSrcStreamPlaybackEnded = false;
|
|
mSrcStreamGraphTimeOffset +=
|
|
graph->CurrentTime() - mSrcStreamPausedGraphTime.ref();
|
|
mSrcStreamPausedGraphTime = Nothing();
|
|
|
|
mWatchManager.Watch(graph->CurrentTime(),
|
|
&HTMLMediaElement::UpdateSrcStreamTime);
|
|
|
|
stream->AddAudioOutput(this);
|
|
SetVolumeInternal();
|
|
if (mSink.second()) {
|
|
NS_WARNING(
|
|
"setSinkId() when playing a MediaStream is not supported yet and "
|
|
"will be ignored");
|
|
}
|
|
|
|
VideoFrameContainer* container = GetVideoFrameContainer();
|
|
if (mSelectedVideoStreamTrack && container) {
|
|
mSelectedVideoStreamTrack->AddVideoOutput(container);
|
|
MaybeBeginCloningVisually();
|
|
}
|
|
|
|
SetCapturedOutputStreamsEnabled(true); // Unmute
|
|
// If the input is a media stream, we don't check its data and always regard
|
|
// it as audible when it's playing.
|
|
SetAudibleState(true);
|
|
} else {
|
|
if (stream) {
|
|
MOZ_DIAGNOSTIC_ASSERT(mSrcStreamPausedGraphTime.isNothing());
|
|
mSrcStreamPausedGraphTime = Some(graph->CurrentTime().Ref());
|
|
|
|
mWatchManager.Unwatch(graph->CurrentTime(),
|
|
&HTMLMediaElement::UpdateSrcStreamTime);
|
|
|
|
stream->RemoveAudioOutput(this);
|
|
VideoFrameContainer* container = GetVideoFrameContainer();
|
|
if (mSelectedVideoStreamTrack && container) {
|
|
mSelectedVideoStreamTrack->RemoveVideoOutput(container);
|
|
}
|
|
|
|
SetCapturedOutputStreamsEnabled(false); // Mute
|
|
}
|
|
// If stream is null, then DOMMediaStream::Destroy must have been
|
|
// called and that will remove all listeners/outputs.
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::UpdateSrcStreamTime() {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
|
|
if (mSrcStreamPlaybackEnded) {
|
|
// We do a separate FireTimeUpdate() when this is set.
|
|
return;
|
|
}
|
|
|
|
FireTimeUpdate(true);
|
|
}
|
|
|
|
void HTMLMediaElement::SetupSrcMediaStreamPlayback(DOMMediaStream* aStream) {
|
|
NS_ASSERTION(!mSrcStream && !mVideoFrameListener,
|
|
"Should have been ended already");
|
|
|
|
mSrcStream = aStream;
|
|
|
|
nsPIDOMWindowInner* window = OwnerDoc()->GetInnerWindow();
|
|
if (!window) {
|
|
return;
|
|
}
|
|
|
|
mSrcStreamPausedGraphTime = Some(0);
|
|
if (MediaStream* stream = GetSrcMediaStream()) {
|
|
if (MediaStreamGraph* graph = stream->Graph()) {
|
|
// The current graph time will represent 0 for this media element.
|
|
mSrcStreamGraphTimeOffset = graph->CurrentTime();
|
|
mSrcStreamPausedGraphTime = Some(mSrcStreamGraphTimeOffset);
|
|
}
|
|
}
|
|
|
|
UpdateSrcMediaStreamPlaying();
|
|
|
|
// If we pause this media element, track changes in the underlying stream
|
|
// will continue to fire events at this element and alter its track list.
|
|
// That's simpler than delaying the events, but probably confusing...
|
|
nsTArray<RefPtr<MediaStreamTrack>> tracks;
|
|
mSrcStream->GetTracks(tracks);
|
|
for (const RefPtr<MediaStreamTrack>& track : tracks) {
|
|
NotifyMediaStreamTrackAdded(track);
|
|
}
|
|
|
|
mMediaStreamTrackListener = MakeUnique<MediaStreamTrackListener>(this);
|
|
mSrcStream->RegisterTrackListener(mMediaStreamTrackListener.get());
|
|
|
|
mSrcStream->AddPrincipalChangeObserver(this);
|
|
mSrcStreamVideoPrincipal = mSrcStream->GetVideoPrincipal();
|
|
|
|
ChangeNetworkState(NETWORK_IDLE);
|
|
ChangeDelayLoadStatus(false);
|
|
CheckAutoplayDataReady();
|
|
|
|
// FirstFrameLoaded() will be called when the stream has tracks.
|
|
}
|
|
|
|
void HTMLMediaElement::EndSrcMediaStreamPlayback() {
|
|
MOZ_ASSERT(mSrcStream);
|
|
|
|
UpdateSrcMediaStreamPlaying(REMOVING_SRC_STREAM);
|
|
|
|
if (mVideoFrameListener) {
|
|
MOZ_ASSERT(mSelectedVideoStreamTrack);
|
|
if (mSelectedVideoStreamTrack) {
|
|
mSelectedVideoStreamTrack->RemoveDirectListener(mVideoFrameListener);
|
|
}
|
|
mVideoFrameListener->Forget();
|
|
}
|
|
mSelectedVideoStreamTrack = nullptr;
|
|
mVideoFrameListener = nullptr;
|
|
|
|
mSrcStream->UnregisterTrackListener(mMediaStreamTrackListener.get());
|
|
mMediaStreamTrackListener = nullptr;
|
|
mSrcStreamTracksAvailable = false;
|
|
|
|
mSrcStream->RemovePrincipalChangeObserver(this);
|
|
mSrcStreamVideoPrincipal = nullptr;
|
|
|
|
for (OutputMediaStream& ms : mOutputStreams) {
|
|
for (auto pair : ms.mTrackPorts) {
|
|
pair.second()->Destroy();
|
|
}
|
|
ms.mTrackPorts.Clear();
|
|
}
|
|
|
|
mSrcStream = nullptr;
|
|
}
|
|
|
|
static already_AddRefed<AudioTrack> CreateAudioTrack(
|
|
AudioStreamTrack* aStreamTrack, nsIGlobalObject* aOwnerGlobal) {
|
|
nsAutoString id;
|
|
nsAutoString label;
|
|
aStreamTrack->GetId(id);
|
|
aStreamTrack->GetLabel(label, CallerType::System);
|
|
|
|
return MediaTrackList::CreateAudioTrack(
|
|
aOwnerGlobal, id, NS_LITERAL_STRING("main"), label, EmptyString(), true);
|
|
}
|
|
|
|
static already_AddRefed<VideoTrack> CreateVideoTrack(
|
|
VideoStreamTrack* aStreamTrack, nsIGlobalObject* aOwnerGlobal) {
|
|
nsAutoString id;
|
|
nsAutoString label;
|
|
aStreamTrack->GetId(id);
|
|
aStreamTrack->GetLabel(label, CallerType::System);
|
|
|
|
return MediaTrackList::CreateVideoTrack(aOwnerGlobal, id,
|
|
NS_LITERAL_STRING("main"), label,
|
|
EmptyString(), aStreamTrack);
|
|
}
|
|
|
|
void HTMLMediaElement::NotifyMediaStreamTrackAdded(
|
|
const RefPtr<MediaStreamTrack>& aTrack) {
|
|
MOZ_ASSERT(aTrack);
|
|
|
|
if (aTrack->Ended()) {
|
|
return;
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
nsString id;
|
|
aTrack->GetId(id);
|
|
|
|
LOG(LogLevel::Debug, ("%p, Adding %sTrack with id %s", this,
|
|
aTrack->AsAudioStreamTrack() ? "Audio" : "Video",
|
|
NS_ConvertUTF16toUTF8(id).get()));
|
|
#endif
|
|
|
|
if (AudioStreamTrack* t = aTrack->AsAudioStreamTrack()) {
|
|
MOZ_DIAGNOSTIC_ASSERT(AudioTracks(), "Element can't have been unlinked");
|
|
RefPtr<AudioTrack> audioTrack =
|
|
CreateAudioTrack(t, AudioTracks()->GetOwnerGlobal());
|
|
AudioTracks()->AddTrack(audioTrack);
|
|
} else if (VideoStreamTrack* t = aTrack->AsVideoStreamTrack()) {
|
|
// TODO: Fix this per the spec on bug 1273443.
|
|
if (!IsVideo()) {
|
|
return;
|
|
}
|
|
MOZ_DIAGNOSTIC_ASSERT(VideoTracks(), "Element can't have been unlinked");
|
|
RefPtr<VideoTrack> videoTrack =
|
|
CreateVideoTrack(t, VideoTracks()->GetOwnerGlobal());
|
|
VideoTracks()->AddTrack(videoTrack);
|
|
// New MediaStreamTrack added, set the new added video track as selected
|
|
// video track when there is no selected track.
|
|
if (VideoTracks()->SelectedIndex() == -1) {
|
|
MOZ_ASSERT(!mSelectedVideoStreamTrack);
|
|
videoTrack->SetEnabledInternal(true, MediaTrack::FIRE_NO_EVENTS);
|
|
}
|
|
}
|
|
|
|
UpdateReadyStateInternal();
|
|
|
|
if (!mSrcStreamTracksAvailable) {
|
|
mAbstractMainThread->Dispatch(NS_NewRunnableFunction(
|
|
"HTMLMediaElement::NotifyMediaStreamTrackAdded->FirstFrameLoaded",
|
|
[this, self = RefPtr<HTMLMediaElement>(this), stream = mSrcStream]() {
|
|
if (!mSrcStream || mSrcStream != stream) {
|
|
return;
|
|
}
|
|
|
|
LOG(LogLevel::Debug,
|
|
("MediaElement %p MediaStream tracks available", this));
|
|
|
|
mSrcStreamTracksAvailable = true;
|
|
|
|
FirstFrameLoaded();
|
|
UpdateReadyStateInternal();
|
|
}));
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::NotifyMediaStreamTrackRemoved(
|
|
const RefPtr<MediaStreamTrack>& aTrack) {
|
|
MOZ_ASSERT(aTrack);
|
|
|
|
nsAutoString id;
|
|
aTrack->GetId(id);
|
|
|
|
LOG(LogLevel::Debug, ("%p, Removing %sTrack with id %s", this,
|
|
aTrack->AsAudioStreamTrack() ? "Audio" : "Video",
|
|
NS_ConvertUTF16toUTF8(id).get()));
|
|
|
|
MOZ_DIAGNOSTIC_ASSERT(AudioTracks() && VideoTracks(),
|
|
"Element can't have been unlinked");
|
|
if (MediaTrack* t = AudioTracks()->GetTrackById(id)) {
|
|
AudioTracks()->RemoveTrack(t);
|
|
} else if (MediaTrack* t = VideoTracks()->GetTrackById(id)) {
|
|
VideoTracks()->RemoveTrack(t);
|
|
} else {
|
|
NS_ASSERTION(aTrack->AsVideoStreamTrack() && !IsVideo(),
|
|
"MediaStreamTrack ended but did not exist in track lists. "
|
|
"This is only allowed if a video element ends and we are an "
|
|
"audio element.");
|
|
return;
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::ProcessMediaFragmentURI() {
|
|
nsMediaFragmentURIParser parser(mLoadingSrc);
|
|
|
|
if (mDecoder && parser.HasEndTime()) {
|
|
mFragmentEnd = parser.GetEndTime();
|
|
}
|
|
|
|
if (parser.HasStartTime()) {
|
|
SetCurrentTime(parser.GetStartTime());
|
|
mFragmentStart = parser.GetStartTime();
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::MetadataLoaded(const MediaInfo* aInfo,
|
|
UniquePtr<const MetadataTags> aTags) {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
|
|
SetMediaInfo(*aInfo);
|
|
|
|
mIsEncrypted =
|
|
aInfo->IsEncrypted() || mPendingEncryptedInitData.IsEncrypted();
|
|
mTags = std::move(aTags);
|
|
mLoadedDataFired = false;
|
|
ChangeReadyState(HAVE_METADATA);
|
|
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("durationchange"));
|
|
if (IsVideo() && HasVideo()) {
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("resize"));
|
|
}
|
|
NS_ASSERTION(!HasVideo() || (mMediaInfo.mVideo.mDisplay.width > 0 &&
|
|
mMediaInfo.mVideo.mDisplay.height > 0),
|
|
"Video resolution must be known on 'loadedmetadata'");
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("loadedmetadata"));
|
|
|
|
if (mBlockedAsWithoutMetadata && !HasAudio()) {
|
|
mBlockedAsWithoutMetadata = false;
|
|
ScalarAdd(
|
|
Telemetry::ScalarID::MEDIA_BLOCKED_NO_METADATA_ENDUP_NO_AUDIO_TRACK, 1);
|
|
}
|
|
|
|
if (mDecoder && mDecoder->IsTransportSeekable() &&
|
|
mDecoder->IsMediaSeekable()) {
|
|
ProcessMediaFragmentURI();
|
|
mDecoder->SetFragmentEndTime(mFragmentEnd);
|
|
}
|
|
if (mIsEncrypted) {
|
|
// We only support playback of encrypted content via MSE by default.
|
|
if (!mMediaSource && Preferences::GetBool("media.eme.mse-only", true)) {
|
|
DecodeError(
|
|
MediaResult(NS_ERROR_DOM_MEDIA_FATAL_ERR,
|
|
"Encrypted content not supported outside of MSE"));
|
|
return;
|
|
}
|
|
|
|
// Dispatch a distinct 'encrypted' event for each initData we have.
|
|
for (const auto& initData : mPendingEncryptedInitData.mInitDatas) {
|
|
DispatchEncrypted(initData.mInitData, initData.mType);
|
|
}
|
|
mPendingEncryptedInitData.Reset();
|
|
}
|
|
|
|
if (IsVideo() && aInfo->HasVideo()) {
|
|
// We are a video element playing video so update the screen wakelock
|
|
NotifyOwnerDocumentActivityChanged();
|
|
}
|
|
|
|
if (mDefaultPlaybackStartPosition != 0.0) {
|
|
SetCurrentTime(mDefaultPlaybackStartPosition);
|
|
mDefaultPlaybackStartPosition = 0.0;
|
|
}
|
|
|
|
UpdateReadyStateInternal();
|
|
|
|
if (!mSrcStream) {
|
|
return;
|
|
}
|
|
|
|
for (OutputMediaStream& ms : mOutputStreams) {
|
|
if (AudioTracks()) {
|
|
for (size_t i = 0; i < AudioTracks()->Length(); ++i) {
|
|
AudioTrack* t = (*AudioTracks())[i];
|
|
if (t->Enabled()) {
|
|
AddCaptureMediaTrackToOutputStream(t, ms);
|
|
}
|
|
}
|
|
}
|
|
if (VideoTracks() && IsVideo() && !ms.mCapturingAudioOnly) {
|
|
// Only add video tracks if we're a video element and the output stream
|
|
// wants video.
|
|
for (size_t i = 0; i < VideoTracks()->Length(); ++i) {
|
|
VideoTrack* t = (*VideoTracks())[i];
|
|
if (t->Selected()) {
|
|
AddCaptureMediaTrackToOutputStream(t, ms);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::FirstFrameLoaded() {
|
|
LOG(LogLevel::Debug,
|
|
("%p, FirstFrameLoaded() mFirstFrameLoaded=%d mWaitingForKey=%d", this,
|
|
mFirstFrameLoaded, mWaitingForKey));
|
|
|
|
NS_ASSERTION(!mSuspendedAfterFirstFrame, "Should not have already suspended");
|
|
|
|
if (!mFirstFrameLoaded) {
|
|
mFirstFrameLoaded = true;
|
|
UpdateReadyStateInternal();
|
|
}
|
|
|
|
ChangeDelayLoadStatus(false);
|
|
|
|
if (mDecoder && mAllowSuspendAfterFirstFrame && mPaused &&
|
|
!HasAttr(kNameSpaceID_None, nsGkAtoms::autoplay) &&
|
|
mPreloadAction == HTMLMediaElement::PRELOAD_METADATA) {
|
|
mSuspendedAfterFirstFrame = true;
|
|
mDecoder->Suspend();
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::NetworkError(const MediaResult& aError) {
|
|
if (mReadyState == HAVE_NOTHING) {
|
|
NoSupportedMediaSourceError(aError.Description());
|
|
} else {
|
|
Error(MEDIA_ERR_NETWORK);
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::DecodeError(const MediaResult& aError) {
|
|
nsAutoString src;
|
|
GetCurrentSrc(src);
|
|
const char16_t* params[] = {src.get()};
|
|
ReportLoadError("MediaLoadDecodeError", params, ArrayLength(params));
|
|
|
|
DecoderDoctorDiagnostics diagnostics;
|
|
diagnostics.StoreDecodeError(OwnerDoc(), aError, src, __func__);
|
|
|
|
if (AudioTracks()) {
|
|
AudioTracks()->EmptyTracks();
|
|
}
|
|
if (VideoTracks()) {
|
|
VideoTracks()->EmptyTracks();
|
|
}
|
|
if (mIsLoadingFromSourceChildren) {
|
|
mErrorSink->ResetError();
|
|
if (mSourceLoadCandidate) {
|
|
DispatchAsyncSourceError(mSourceLoadCandidate);
|
|
QueueLoadFromSourceTask();
|
|
} else {
|
|
NS_WARNING("Should know the source we were loading from!");
|
|
}
|
|
} else if (mReadyState == HAVE_NOTHING) {
|
|
NoSupportedMediaSourceError(aError.Description());
|
|
} else {
|
|
Error(MEDIA_ERR_DECODE, aError.Description());
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::DecodeWarning(const MediaResult& aError) {
|
|
nsAutoString src;
|
|
GetCurrentSrc(src);
|
|
DecoderDoctorDiagnostics diagnostics;
|
|
diagnostics.StoreDecodeWarning(OwnerDoc(), aError, src, __func__);
|
|
}
|
|
|
|
bool HTMLMediaElement::HasError() const { return GetError(); }
|
|
|
|
void HTMLMediaElement::LoadAborted() { Error(MEDIA_ERR_ABORTED); }
|
|
|
|
void HTMLMediaElement::Error(uint16_t aErrorCode,
|
|
const nsACString& aErrorDetails) {
|
|
mErrorSink->SetError(aErrorCode, aErrorDetails);
|
|
ChangeDelayLoadStatus(false);
|
|
UpdateAudioChannelPlayingState();
|
|
}
|
|
|
|
void HTMLMediaElement::PlaybackEnded() {
|
|
// We changed state which can affect AddRemoveSelfReference
|
|
AddRemoveSelfReference();
|
|
|
|
NS_ASSERTION(!mDecoder || mDecoder->IsEnded(),
|
|
"Decoder fired ended, but not in ended state");
|
|
|
|
// Discard all output streams that have finished now.
|
|
for (int32_t i = mOutputStreams.Length() - 1; i >= 0; --i) {
|
|
if (mOutputStreams[i].mFinishWhenEnded) {
|
|
LOG(LogLevel::Debug,
|
|
("Playback ended. Letting output stream %p go inactive",
|
|
mOutputStreams[i].mStream.get()));
|
|
mOutputStreams[i].mStream->SetFinishedOnInactive(true);
|
|
if (mOutputStreams[i].mCapturingDecoder) {
|
|
mDecoder->RemoveOutputStream(mOutputStreams[i].mStream);
|
|
}
|
|
mOutputStreams.RemoveElementAt(i);
|
|
}
|
|
}
|
|
|
|
if (mSrcStream) {
|
|
LOG(LogLevel::Debug,
|
|
("%p, got duration by reaching the end of the resource", this));
|
|
mSrcStreamPlaybackEnded = true;
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("durationchange"));
|
|
}
|
|
|
|
if (HasAttr(kNameSpaceID_None, nsGkAtoms::loop)) {
|
|
SetCurrentTime(0);
|
|
return;
|
|
}
|
|
|
|
FireTimeUpdate(false);
|
|
|
|
if (!mPaused) {
|
|
Pause();
|
|
}
|
|
|
|
if (mSrcStream) {
|
|
// A MediaStream that goes from inactive to active shall be eligible for
|
|
// autoplay again according to the mediacapture-main spec.
|
|
mAutoplaying = true;
|
|
}
|
|
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("ended"));
|
|
}
|
|
|
|
void HTMLMediaElement::SeekStarted() {
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("seeking"));
|
|
}
|
|
|
|
void HTMLMediaElement::SeekCompleted() {
|
|
mPlayingBeforeSeek = false;
|
|
SetPlayedOrSeeked(true);
|
|
if (mTextTrackManager) {
|
|
mTextTrackManager->DidSeek();
|
|
}
|
|
FireTimeUpdate(false);
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("seeked"));
|
|
// We changed whether we're seeking so we need to AddRemoveSelfReference
|
|
AddRemoveSelfReference();
|
|
if (mCurrentPlayRangeStart == -1.0) {
|
|
mCurrentPlayRangeStart = CurrentTime();
|
|
}
|
|
|
|
// After seeking completed, if the audio track is silent, start another new
|
|
// silence range.
|
|
mHasAccumulatedSilenceRangeBeforeSeekEnd = false;
|
|
if (IsAudioTrackCurrentlySilent()) {
|
|
UpdateAudioTrackSilenceRange(mIsAudioTrackAudible);
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::NotifySuspendedByCache(bool aSuspendedByCache) {
|
|
mDownloadSuspendedByCache = aSuspendedByCache;
|
|
UpdateReadyStateInternal();
|
|
}
|
|
|
|
void HTMLMediaElement::DownloadSuspended() {
|
|
if (mNetworkState == NETWORK_LOADING) {
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("progress"));
|
|
}
|
|
ChangeNetworkState(NETWORK_IDLE);
|
|
}
|
|
|
|
void HTMLMediaElement::DownloadResumed() {
|
|
ChangeNetworkState(NETWORK_LOADING);
|
|
}
|
|
|
|
void HTMLMediaElement::CheckProgress(bool aHaveNewProgress) {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
MOZ_ASSERT(mNetworkState == NETWORK_LOADING);
|
|
|
|
TimeStamp now = TimeStamp::NowLoRes();
|
|
|
|
if (aHaveNewProgress) {
|
|
mDataTime = now;
|
|
}
|
|
|
|
// If this is the first progress, or PROGRESS_MS has passed since the last
|
|
// progress event fired and more data has arrived since then, fire a
|
|
// progress event.
|
|
NS_ASSERTION(
|
|
(mProgressTime.IsNull() && !aHaveNewProgress) || !mDataTime.IsNull(),
|
|
"null TimeStamp mDataTime should not be used in comparison");
|
|
if (mProgressTime.IsNull()
|
|
? aHaveNewProgress
|
|
: (now - mProgressTime >=
|
|
TimeDuration::FromMilliseconds(PROGRESS_MS) &&
|
|
mDataTime > mProgressTime)) {
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("progress"));
|
|
// Resolution() ensures that future data will have now > mProgressTime,
|
|
// and so will trigger another event. mDataTime is not reset because it
|
|
// is still required to detect stalled; it is similarly offset by
|
|
// resolution to indicate the new data has not yet arrived.
|
|
mProgressTime = now - TimeDuration::Resolution();
|
|
if (mDataTime > mProgressTime) {
|
|
mDataTime = mProgressTime;
|
|
}
|
|
if (!mProgressTimer) {
|
|
NS_ASSERTION(aHaveNewProgress,
|
|
"timer dispatched when there was no timer");
|
|
// Were stalled. Restart timer.
|
|
StartProgressTimer();
|
|
if (!mLoadedDataFired) {
|
|
ChangeDelayLoadStatus(true);
|
|
}
|
|
}
|
|
// Download statistics may have been updated, force a recheck of the
|
|
// readyState.
|
|
UpdateReadyStateInternal();
|
|
}
|
|
|
|
if (now - mDataTime >= TimeDuration::FromMilliseconds(STALL_MS)) {
|
|
if (!mMediaSource) {
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("stalled"));
|
|
} else {
|
|
ChangeDelayLoadStatus(false);
|
|
}
|
|
|
|
NS_ASSERTION(mProgressTimer, "detected stalled without timer");
|
|
// Stop timer events, which prevents repeated stalled events until there
|
|
// is more progress.
|
|
StopProgress();
|
|
}
|
|
|
|
AddRemoveSelfReference();
|
|
}
|
|
|
|
/* static */
|
|
void HTMLMediaElement::ProgressTimerCallback(nsITimer* aTimer, void* aClosure) {
|
|
auto decoder = static_cast<HTMLMediaElement*>(aClosure);
|
|
decoder->CheckProgress(false);
|
|
}
|
|
|
|
void HTMLMediaElement::StartProgressTimer() {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
MOZ_ASSERT(mNetworkState == NETWORK_LOADING);
|
|
NS_ASSERTION(!mProgressTimer, "Already started progress timer.");
|
|
|
|
NS_NewTimerWithFuncCallback(
|
|
getter_AddRefs(mProgressTimer), ProgressTimerCallback, this, PROGRESS_MS,
|
|
nsITimer::TYPE_REPEATING_SLACK, "HTMLMediaElement::ProgressTimerCallback",
|
|
mMainThreadEventTarget);
|
|
}
|
|
|
|
void HTMLMediaElement::StartProgress() {
|
|
// Record the time now for detecting stalled.
|
|
mDataTime = TimeStamp::NowLoRes();
|
|
// Reset mProgressTime so that mDataTime is not indicating bytes received
|
|
// after the last progress event.
|
|
mProgressTime = TimeStamp();
|
|
StartProgressTimer();
|
|
}
|
|
|
|
void HTMLMediaElement::StopProgress() {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
if (!mProgressTimer) {
|
|
return;
|
|
}
|
|
|
|
mProgressTimer->Cancel();
|
|
mProgressTimer = nullptr;
|
|
}
|
|
|
|
void HTMLMediaElement::DownloadProgressed() {
|
|
if (mNetworkState != NETWORK_LOADING) {
|
|
return;
|
|
}
|
|
CheckProgress(true);
|
|
}
|
|
|
|
bool HTMLMediaElement::ShouldCheckAllowOrigin() {
|
|
return mCORSMode != CORS_NONE;
|
|
}
|
|
|
|
bool HTMLMediaElement::IsCORSSameOrigin() {
|
|
bool subsumes;
|
|
RefPtr<nsIPrincipal> principal = GetCurrentPrincipal();
|
|
return (NS_SUCCEEDED(NodePrincipal()->Subsumes(principal, &subsumes)) &&
|
|
subsumes) ||
|
|
ShouldCheckAllowOrigin();
|
|
}
|
|
|
|
void HTMLMediaElement::UpdateReadyStateInternal() {
|
|
if (!mDecoder && !mSrcStream) {
|
|
// Not initialized - bail out.
|
|
LOG(LogLevel::Debug, ("MediaElement %p UpdateReadyStateInternal() "
|
|
"Not initialized",
|
|
this));
|
|
return;
|
|
}
|
|
|
|
if (mDecoder && mReadyState < HAVE_METADATA) {
|
|
// aNextFrame might have a next frame because the decoder can advance
|
|
// on its own thread before MetadataLoaded gets a chance to run.
|
|
// The arrival of more data can't change us out of this readyState.
|
|
LOG(LogLevel::Debug, ("MediaElement %p UpdateReadyStateInternal() "
|
|
"Decoder ready state < HAVE_METADATA",
|
|
this));
|
|
return;
|
|
}
|
|
|
|
if (mSrcStream && mReadyState < HAVE_METADATA) {
|
|
if (!mSrcStreamTracksAvailable) {
|
|
LOG(LogLevel::Debug, ("MediaElement %p UpdateReadyStateInternal() "
|
|
"MediaStreamTracks not available yet",
|
|
this));
|
|
return;
|
|
}
|
|
|
|
bool hasAudioTracks = AudioTracks() && !AudioTracks()->IsEmpty();
|
|
bool hasVideoTracks = VideoTracks() && !VideoTracks()->IsEmpty();
|
|
if (!hasAudioTracks && !hasVideoTracks) {
|
|
LOG(LogLevel::Debug, ("MediaElement %p UpdateReadyStateInternal() "
|
|
"Stream with no tracks",
|
|
this));
|
|
// Give it one last chance to remove the self reference if needed.
|
|
AddRemoveSelfReference();
|
|
return;
|
|
}
|
|
|
|
if (IsVideo() && hasVideoTracks && !HasVideo()) {
|
|
LOG(LogLevel::Debug, ("MediaElement %p UpdateReadyStateInternal() "
|
|
"Stream waiting for video",
|
|
this));
|
|
return;
|
|
}
|
|
|
|
LOG(LogLevel::Debug,
|
|
("MediaElement %p UpdateReadyStateInternal() Stream has "
|
|
"metadata; audioTracks=%d, videoTracks=%d, "
|
|
"hasVideoFrame=%d",
|
|
this, AudioTracks()->Length(), VideoTracks()->Length(), HasVideo()));
|
|
|
|
// We are playing a stream that has video and a video frame is now set.
|
|
// This means we have all metadata needed to change ready state.
|
|
MediaInfo mediaInfo = mMediaInfo;
|
|
if (hasAudioTracks) {
|
|
mediaInfo.EnableAudio();
|
|
}
|
|
if (hasVideoTracks) {
|
|
mediaInfo.EnableVideo();
|
|
}
|
|
MetadataLoaded(&mediaInfo, nullptr);
|
|
}
|
|
|
|
if (mMediaSource) {
|
|
// readyState has changed, assuming it's following the pending mediasource
|
|
// operations. Notify the Mediasource that the operations have completed.
|
|
mMediaSource->CompletePendingTransactions();
|
|
}
|
|
|
|
enum NextFrameStatus nextFrameStatus = NextFrameStatus();
|
|
if (mWaitingForKey == NOT_WAITING_FOR_KEY) {
|
|
if (nextFrameStatus == NEXT_FRAME_UNAVAILABLE && mDecoder &&
|
|
!mDecoder->IsEnded()) {
|
|
nextFrameStatus = mDecoder->NextFrameBufferedStatus();
|
|
}
|
|
} else if (mWaitingForKey == WAITING_FOR_KEY) {
|
|
if (nextFrameStatus == NEXT_FRAME_UNAVAILABLE ||
|
|
nextFrameStatus == NEXT_FRAME_UNAVAILABLE_BUFFERING) {
|
|
// http://w3c.github.io/encrypted-media/#wait-for-key
|
|
// Continuing 7.3.4 Queue a "waitingforkey" Event
|
|
// 4. Queue a task to fire a simple event named waitingforkey
|
|
// at the media element.
|
|
// 5. Set the readyState of media element to HAVE_METADATA.
|
|
// NOTE: We'll change to HAVE_CURRENT_DATA or HAVE_METADATA
|
|
// depending on whether we've loaded the first frame or not
|
|
// below.
|
|
// 6. Suspend playback.
|
|
// Note: Playback will already be stalled, as the next frame is
|
|
// unavailable.
|
|
mWaitingForKey = WAITING_FOR_KEY_DISPATCHED;
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("waitingforkey"));
|
|
}
|
|
} else {
|
|
MOZ_ASSERT(mWaitingForKey == WAITING_FOR_KEY_DISPATCHED);
|
|
if (nextFrameStatus == NEXT_FRAME_AVAILABLE) {
|
|
// We have new frames after dispatching "waitingforkey".
|
|
// This means we've got the key and can reset mWaitingForKey now.
|
|
mWaitingForKey = NOT_WAITING_FOR_KEY;
|
|
}
|
|
}
|
|
|
|
if (nextFrameStatus == MediaDecoderOwner::NEXT_FRAME_UNAVAILABLE_SEEKING) {
|
|
LOG(LogLevel::Debug,
|
|
("MediaElement %p UpdateReadyStateInternal() "
|
|
"NEXT_FRAME_UNAVAILABLE_SEEKING; Forcing HAVE_METADATA",
|
|
this));
|
|
ChangeReadyState(HAVE_METADATA);
|
|
return;
|
|
}
|
|
|
|
if (IsVideo() && VideoTracks() && !VideoTracks()->IsEmpty() &&
|
|
!IsPlaybackEnded() && GetImageContainer() &&
|
|
!GetImageContainer()->HasCurrentImage()) {
|
|
// Don't advance if we are playing video, but don't have a video frame.
|
|
// Also, if video became available after advancing to HAVE_CURRENT_DATA
|
|
// while we are still playing, we need to revert to HAVE_METADATA until
|
|
// a video frame is available.
|
|
LOG(LogLevel::Debug,
|
|
("MediaElement %p UpdateReadyStateInternal() "
|
|
"Playing video but no video frame; Forcing HAVE_METADATA",
|
|
this));
|
|
ChangeReadyState(HAVE_METADATA);
|
|
return;
|
|
}
|
|
|
|
if (!mFirstFrameLoaded) {
|
|
// We haven't yet loaded the first frame, making us unable to determine
|
|
// if we have enough valid data at the present stage.
|
|
return;
|
|
}
|
|
|
|
if (nextFrameStatus == NEXT_FRAME_UNAVAILABLE_BUFFERING) {
|
|
// Force HAVE_CURRENT_DATA when buffering.
|
|
ChangeReadyState(HAVE_CURRENT_DATA);
|
|
return;
|
|
}
|
|
|
|
// TextTracks must be loaded for the HAVE_ENOUGH_DATA and
|
|
// HAVE_FUTURE_DATA.
|
|
// So force HAVE_CURRENT_DATA if text tracks not loaded.
|
|
if (mTextTrackManager && !mTextTrackManager->IsLoaded()) {
|
|
ChangeReadyState(HAVE_CURRENT_DATA);
|
|
return;
|
|
}
|
|
|
|
if (mDownloadSuspendedByCache && mDecoder && !mDecoder->IsEnded()) {
|
|
// The decoder has signaled that the download has been suspended by the
|
|
// media cache. So move readyState into HAVE_ENOUGH_DATA, in case there's
|
|
// script waiting for a "canplaythrough" event; without this forced
|
|
// transition, we will never fire the "canplaythrough" event if the
|
|
// media cache is too small, and scripts are bound to fail. Don't force
|
|
// this transition if the decoder is in ended state; the readyState
|
|
// should remain at HAVE_CURRENT_DATA in this case.
|
|
// Note that this state transition includes the case where we finished
|
|
// downloaded the whole data stream.
|
|
LOG(LogLevel::Debug, ("MediaElement %p UpdateReadyStateInternal() "
|
|
"Decoder download suspended by cache",
|
|
this));
|
|
ChangeReadyState(HAVE_ENOUGH_DATA);
|
|
return;
|
|
}
|
|
|
|
if (nextFrameStatus != MediaDecoderOwner::NEXT_FRAME_AVAILABLE) {
|
|
LOG(LogLevel::Debug, ("MediaElement %p UpdateReadyStateInternal() "
|
|
"Next frame not available",
|
|
this));
|
|
ChangeReadyState(HAVE_CURRENT_DATA);
|
|
return;
|
|
}
|
|
|
|
if (mSrcStream) {
|
|
LOG(LogLevel::Debug, ("MediaElement %p UpdateReadyStateInternal() "
|
|
"Stream HAVE_ENOUGH_DATA",
|
|
this));
|
|
ChangeReadyState(HAVE_ENOUGH_DATA);
|
|
return;
|
|
}
|
|
|
|
// Now see if we should set HAVE_ENOUGH_DATA.
|
|
// If it's something we don't know the size of, then we can't
|
|
// make a real estimate, so we go straight to HAVE_ENOUGH_DATA once
|
|
// we've downloaded enough data that our download rate is considered
|
|
// reliable. We have to move to HAVE_ENOUGH_DATA at some point or
|
|
// autoplay elements for live streams will never play. Otherwise we
|
|
// move to HAVE_ENOUGH_DATA if we can play through the entire media
|
|
// without stopping to buffer.
|
|
if (mDecoder->CanPlayThrough()) {
|
|
LOG(LogLevel::Debug, ("MediaElement %p UpdateReadyStateInternal() "
|
|
"Decoder can play through",
|
|
this));
|
|
ChangeReadyState(HAVE_ENOUGH_DATA);
|
|
return;
|
|
}
|
|
LOG(LogLevel::Debug, ("MediaElement %p UpdateReadyStateInternal() "
|
|
"Default; Decoder has future data",
|
|
this));
|
|
ChangeReadyState(HAVE_FUTURE_DATA);
|
|
}
|
|
|
|
static const char* const gReadyStateToString[] = {
|
|
"HAVE_NOTHING", "HAVE_METADATA", "HAVE_CURRENT_DATA", "HAVE_FUTURE_DATA",
|
|
"HAVE_ENOUGH_DATA"};
|
|
|
|
void HTMLMediaElement::ChangeReadyState(nsMediaReadyState aState) {
|
|
if (mReadyState == aState) {
|
|
return;
|
|
}
|
|
|
|
nsMediaReadyState oldState = mReadyState;
|
|
mReadyState = aState;
|
|
LOG(LogLevel::Debug,
|
|
("%p Ready state changed to %s", this, gReadyStateToString[aState]));
|
|
|
|
DDLOG(DDLogCategory::Property, "ready_state", gReadyStateToString[aState]);
|
|
|
|
// https://html.spec.whatwg.org/multipage/media.html#text-track-cue-active-flag
|
|
// The user agent must synchronously unset cues' active flag whenever the
|
|
// media element's readyState is changed back to HAVE_NOTHING.
|
|
if (mReadyState == HAVE_NOTHING && mTextTrackManager) {
|
|
mTextTrackManager->NotifyReset();
|
|
}
|
|
|
|
if (mNetworkState == NETWORK_EMPTY) {
|
|
return;
|
|
}
|
|
|
|
UpdateAudioChannelPlayingState();
|
|
|
|
// Handle raising of "waiting" event during seek (see 4.8.10.9)
|
|
// or
|
|
// 4.8.12.7 Ready states:
|
|
// "If the previous ready state was HAVE_FUTURE_DATA or more, and the new
|
|
// ready state is HAVE_CURRENT_DATA or less
|
|
// If the media element was potentially playing before its readyState
|
|
// attribute changed to a value lower than HAVE_FUTURE_DATA, and the element
|
|
// has not ended playback, and playback has not stopped due to errors,
|
|
// paused for user interaction, or paused for in-band content, the user agent
|
|
// must queue a task to fire a simple event named timeupdate at the element,
|
|
// and queue a task to fire a simple event named waiting at the element."
|
|
if (mPlayingBeforeSeek && mReadyState < HAVE_FUTURE_DATA) {
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("waiting"));
|
|
} else if (oldState >= HAVE_FUTURE_DATA && mReadyState < HAVE_FUTURE_DATA &&
|
|
!Paused() && !Ended() && !mErrorSink->mError) {
|
|
FireTimeUpdate(false);
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("waiting"));
|
|
}
|
|
|
|
if (oldState < HAVE_CURRENT_DATA && mReadyState >= HAVE_CURRENT_DATA &&
|
|
!mLoadedDataFired) {
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("loadeddata"));
|
|
mLoadedDataFired = true;
|
|
}
|
|
|
|
if (oldState < HAVE_FUTURE_DATA && mReadyState >= HAVE_FUTURE_DATA) {
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("canplay"));
|
|
if (!mPaused) {
|
|
if (mDecoder && !mPausedForInactiveDocumentOrChannel) {
|
|
MOZ_ASSERT(AutoplayPolicy::IsAllowedToPlay(*this));
|
|
mDecoder->Play();
|
|
}
|
|
NotifyAboutPlaying();
|
|
}
|
|
}
|
|
|
|
CheckAutoplayDataReady();
|
|
|
|
if (oldState < HAVE_ENOUGH_DATA && mReadyState >= HAVE_ENOUGH_DATA) {
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("canplaythrough"));
|
|
}
|
|
}
|
|
|
|
static const char* const gNetworkStateToString[] = {"EMPTY", "IDLE", "LOADING",
|
|
"NO_SOURCE"};
|
|
|
|
void HTMLMediaElement::ChangeNetworkState(nsMediaNetworkState aState) {
|
|
if (mNetworkState == aState) {
|
|
return;
|
|
}
|
|
|
|
nsMediaNetworkState oldState = mNetworkState;
|
|
mNetworkState = aState;
|
|
LOG(LogLevel::Debug,
|
|
("%p Network state changed to %s", this, gNetworkStateToString[aState]));
|
|
DDLOG(DDLogCategory::Property, "network_state",
|
|
gNetworkStateToString[aState]);
|
|
|
|
if (oldState == NETWORK_LOADING) {
|
|
// Stop progress notification when exiting NETWORK_LOADING.
|
|
StopProgress();
|
|
}
|
|
|
|
if (mNetworkState == NETWORK_LOADING) {
|
|
// Start progress notification when entering NETWORK_LOADING.
|
|
StartProgress();
|
|
} else if (mNetworkState == NETWORK_IDLE && !mErrorSink->mError) {
|
|
// Fire 'suspend' event when entering NETWORK_IDLE and no error presented.
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("suspend"));
|
|
}
|
|
|
|
// According to the resource selection (step2, step9-18), dedicated media
|
|
// source failure step (step4) and aborting existing load (step4), set show
|
|
// poster flag to true. https://html.spec.whatwg.org/multipage/media.html
|
|
if (mNetworkState == NETWORK_NO_SOURCE || mNetworkState == NETWORK_EMPTY) {
|
|
mShowPoster = true;
|
|
}
|
|
|
|
// Changing mNetworkState affects AddRemoveSelfReference().
|
|
AddRemoveSelfReference();
|
|
}
|
|
|
|
bool HTMLMediaElement::CanActivateAutoplay() {
|
|
// For stream inputs, we activate autoplay on HAVE_NOTHING because
|
|
// this element itself might be blocking the stream from making progress by
|
|
// being paused. We only check that it has data by checking its active state.
|
|
// We also activate autoplay when playing a media source since the data
|
|
// download is controlled by the script and there is no way to evaluate
|
|
// MediaDecoder::CanPlayThrough().
|
|
|
|
if (!HasAttr(kNameSpaceID_None, nsGkAtoms::autoplay)) {
|
|
return false;
|
|
}
|
|
|
|
if (!mAutoplaying) {
|
|
return false;
|
|
}
|
|
|
|
if (IsEditable()) {
|
|
return false;
|
|
}
|
|
|
|
if (!mPaused) {
|
|
return false;
|
|
}
|
|
|
|
if (mPausedForInactiveDocumentOrChannel) {
|
|
return false;
|
|
}
|
|
|
|
// Static document is used for print preview and printing, should not be
|
|
// autoplay
|
|
if (OwnerDoc()->IsStaticDocument()) {
|
|
return false;
|
|
}
|
|
|
|
if (mAudioChannelWrapper) {
|
|
// Note: SUSPENDED_PAUSE and SUSPENDED_BLOCK will be merged into one single
|
|
// state.
|
|
if (mAudioChannelWrapper->GetSuspendType() ==
|
|
nsISuspendedTypes::SUSPENDED_PAUSE ||
|
|
mAudioChannelWrapper->GetSuspendType() ==
|
|
nsISuspendedTypes::SUSPENDED_BLOCK ||
|
|
mAudioChannelWrapper->IsPlaybackBlocked()) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
bool hasData = (mDecoder && mReadyState >= HAVE_ENOUGH_DATA) ||
|
|
(mSrcStream && mSrcStream->Active());
|
|
|
|
return hasData;
|
|
}
|
|
|
|
void HTMLMediaElement::CheckAutoplayDataReady() {
|
|
if (!CanActivateAutoplay()) {
|
|
return;
|
|
}
|
|
|
|
UpdateHadAudibleAutoplayState();
|
|
if (!AutoplayPolicy::IsAllowedToPlay(*this)) {
|
|
DispatchEventsWhenPlayWasNotAllowed();
|
|
return;
|
|
}
|
|
|
|
mAllowedToPlayPromise.ResolveIfExists(true, __func__);
|
|
mPaused = false;
|
|
// We changed mPaused which can affect AddRemoveSelfReference
|
|
AddRemoveSelfReference();
|
|
UpdateSrcMediaStreamPlaying();
|
|
UpdateAudioChannelPlayingState();
|
|
|
|
if (mDecoder) {
|
|
SetPlayedOrSeeked(true);
|
|
if (mCurrentPlayRangeStart == -1.0) {
|
|
mCurrentPlayRangeStart = CurrentTime();
|
|
}
|
|
MOZ_ASSERT(!mPausedForInactiveDocumentOrChannel);
|
|
mDecoder->Play();
|
|
} else if (mSrcStream) {
|
|
SetPlayedOrSeeked(true);
|
|
}
|
|
|
|
// https://html.spec.whatwg.org/multipage/media.html#ready-states:show-poster-flag
|
|
if (mShowPoster) {
|
|
mShowPoster = false;
|
|
if (mTextTrackManager) {
|
|
mTextTrackManager->TimeMarchesOn();
|
|
}
|
|
}
|
|
|
|
// For blocked media, the event would be pending until it is resumed.
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("play"));
|
|
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("playing"));
|
|
}
|
|
|
|
bool HTMLMediaElement::IsActive() const {
|
|
Document* ownerDoc = OwnerDoc();
|
|
return ownerDoc && ownerDoc->IsActive() && ownerDoc->IsVisible();
|
|
}
|
|
|
|
bool HTMLMediaElement::IsHidden() const {
|
|
Document* ownerDoc;
|
|
return mUnboundFromTree || !(ownerDoc = OwnerDoc()) || ownerDoc->Hidden();
|
|
}
|
|
|
|
VideoFrameContainer* HTMLMediaElement::GetVideoFrameContainer() {
|
|
if (mShuttingDown) {
|
|
return nullptr;
|
|
}
|
|
|
|
if (mVideoFrameContainer) return mVideoFrameContainer;
|
|
|
|
// Only video frames need an image container.
|
|
if (!IsVideo()) {
|
|
return nullptr;
|
|
}
|
|
|
|
mVideoFrameContainer = new VideoFrameContainer(
|
|
this, LayerManager::CreateImageContainer(ImageContainer::ASYNCHRONOUS));
|
|
|
|
return mVideoFrameContainer;
|
|
}
|
|
|
|
void HTMLMediaElement::PrincipalChanged(DOMMediaStream* aStream) {
|
|
LOG(LogLevel::Info, ("HTMLMediaElement %p Stream principal changed.", this));
|
|
nsContentUtils::CombineResourcePrincipals(&mSrcStreamVideoPrincipal,
|
|
aStream->GetVideoPrincipal());
|
|
|
|
LOG(LogLevel::Debug,
|
|
("HTMLMediaElement %p Stream video principal changed to "
|
|
"%p. Waiting for it to reach VideoFrameContainer before "
|
|
"setting.",
|
|
this, aStream->GetVideoPrincipal()));
|
|
if (mVideoFrameContainer) {
|
|
UpdateSrcStreamVideoPrincipal(
|
|
mVideoFrameContainer->GetLastPrincipalHandle());
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::UpdateSrcStreamVideoPrincipal(
|
|
const PrincipalHandle& aPrincipalHandle) {
|
|
nsTArray<RefPtr<VideoStreamTrack>> videoTracks;
|
|
mSrcStream->GetVideoTracks(videoTracks);
|
|
|
|
PrincipalHandle handle(aPrincipalHandle);
|
|
bool matchesTrackPrincipal = false;
|
|
for (const RefPtr<VideoStreamTrack>& track : videoTracks) {
|
|
if (PrincipalHandleMatches(handle, track->GetPrincipal()) &&
|
|
!track->Ended()) {
|
|
// When the PrincipalHandle for the VideoFrameContainer changes to that of
|
|
// a track in mSrcStream we know that a removed track was displayed but
|
|
// is no longer so.
|
|
matchesTrackPrincipal = true;
|
|
LOG(LogLevel::Debug, ("HTMLMediaElement %p VideoFrameContainer's "
|
|
"PrincipalHandle matches track %p. That's all we "
|
|
"need.",
|
|
this, track.get()));
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (matchesTrackPrincipal) {
|
|
mSrcStreamVideoPrincipal = mSrcStream->GetVideoPrincipal();
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::PrincipalHandleChangedForVideoFrameContainer(
|
|
VideoFrameContainer* aContainer,
|
|
const PrincipalHandle& aNewPrincipalHandle) {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
|
|
if (!mSrcStream) {
|
|
return;
|
|
}
|
|
|
|
LOG(LogLevel::Debug, ("HTMLMediaElement %p PrincipalHandle changed in "
|
|
"VideoFrameContainer.",
|
|
this));
|
|
|
|
UpdateSrcStreamVideoPrincipal(aNewPrincipalHandle);
|
|
}
|
|
|
|
nsresult HTMLMediaElement::DispatchEvent(const nsAString& aName) {
|
|
LOG_EVENT(LogLevel::Debug, ("%p Dispatching event %s", this,
|
|
NS_ConvertUTF16toUTF8(aName).get()));
|
|
|
|
// Save events that occur while in the bfcache. These will be dispatched
|
|
// if the page comes out of the bfcache.
|
|
if (mEventDeliveryPaused) {
|
|
mPendingEvents.AppendElement(aName);
|
|
return NS_OK;
|
|
}
|
|
|
|
return nsContentUtils::DispatchTrustedEvent(
|
|
OwnerDoc(), static_cast<nsIContent*>(this), aName, CanBubble::eNo,
|
|
Cancelable::eNo);
|
|
}
|
|
|
|
void HTMLMediaElement::DispatchAsyncEvent(const nsAString& aName) {
|
|
LOG_EVENT(LogLevel::Debug,
|
|
("%p Queuing event %s", this, NS_ConvertUTF16toUTF8(aName).get()));
|
|
DDLOG(DDLogCategory::Event, "HTMLMediaElement",
|
|
nsCString(NS_ConvertUTF16toUTF8(aName)));
|
|
|
|
// Save events that occur while in the bfcache. These will be dispatched
|
|
// if the page comes out of the bfcache.
|
|
if (mEventDeliveryPaused) {
|
|
mPendingEvents.AppendElement(aName);
|
|
return;
|
|
}
|
|
|
|
nsCOMPtr<nsIRunnable> event;
|
|
|
|
if (aName.EqualsLiteral("playing")) {
|
|
event = new nsNotifyAboutPlayingRunner(this, TakePendingPlayPromises());
|
|
} else {
|
|
event = new nsAsyncEventRunner(aName, this);
|
|
}
|
|
|
|
mMainThreadEventTarget->Dispatch(event.forget());
|
|
|
|
if ((aName.EqualsLiteral("play") || aName.EqualsLiteral("playing"))) {
|
|
mPlayTime.Start();
|
|
mCurrentLoadPlayTime.Start();
|
|
if (IsHidden()) {
|
|
HiddenVideoStart();
|
|
}
|
|
} else if (aName.EqualsLiteral("waiting")) {
|
|
mPlayTime.Pause();
|
|
mCurrentLoadPlayTime.Pause();
|
|
HiddenVideoStop();
|
|
} else if (aName.EqualsLiteral("pause")) {
|
|
mPlayTime.Pause();
|
|
mCurrentLoadPlayTime.Pause();
|
|
HiddenVideoStop();
|
|
}
|
|
|
|
// It would happen when (1) media aborts current load (2) media pauses (3)
|
|
// media end (4) media unbind from tree (because we would pause it)
|
|
if (aName.EqualsLiteral("pause")) {
|
|
ReportPlayedTimeAfterBlockedTelemetry();
|
|
}
|
|
}
|
|
|
|
nsresult HTMLMediaElement::DispatchPendingMediaEvents() {
|
|
NS_ASSERTION(!mEventDeliveryPaused,
|
|
"Must not be in bfcache when dispatching pending media events");
|
|
|
|
uint32_t count = mPendingEvents.Length();
|
|
for (uint32_t i = 0; i < count; ++i) {
|
|
DispatchAsyncEvent(mPendingEvents[i]);
|
|
}
|
|
mPendingEvents.Clear();
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
bool HTMLMediaElement::IsPotentiallyPlaying() const {
|
|
// TODO:
|
|
// playback has not stopped due to errors,
|
|
// and the element has not paused for user interaction
|
|
return !mPaused &&
|
|
(mReadyState == HAVE_ENOUGH_DATA || mReadyState == HAVE_FUTURE_DATA) &&
|
|
!IsPlaybackEnded();
|
|
}
|
|
|
|
bool HTMLMediaElement::IsPlaybackEnded() const {
|
|
// TODO:
|
|
// the current playback position is equal to the effective end of the media
|
|
// resource. See bug 449157.
|
|
if (mDecoder) {
|
|
return mReadyState >= HAVE_METADATA && mDecoder->IsEnded();
|
|
} else if (mSrcStream) {
|
|
return mReadyState >= HAVE_METADATA && mSrcStreamPlaybackEnded;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
already_AddRefed<nsIPrincipal> HTMLMediaElement::GetCurrentPrincipal() {
|
|
if (mDecoder) {
|
|
return mDecoder->GetCurrentPrincipal();
|
|
}
|
|
if (mSrcStream) {
|
|
nsCOMPtr<nsIPrincipal> principal = mSrcStream->GetPrincipal();
|
|
return principal.forget();
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
already_AddRefed<nsIPrincipal> HTMLMediaElement::GetCurrentVideoPrincipal() {
|
|
if (mDecoder) {
|
|
return mDecoder->GetCurrentPrincipal();
|
|
}
|
|
if (mSrcStream) {
|
|
nsCOMPtr<nsIPrincipal> principal = mSrcStreamVideoPrincipal;
|
|
return principal.forget();
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
void HTMLMediaElement::NotifyDecoderPrincipalChanged() {
|
|
RefPtr<nsIPrincipal> principal = GetCurrentPrincipal();
|
|
|
|
mDecoder->UpdateSameOriginStatus(!principal || IsCORSSameOrigin());
|
|
}
|
|
|
|
void HTMLMediaElement::Invalidate(bool aImageSizeChanged,
|
|
Maybe<nsIntSize>& aNewIntrinsicSize,
|
|
bool aForceInvalidate) {
|
|
nsIFrame* frame = GetPrimaryFrame();
|
|
if (aNewIntrinsicSize) {
|
|
UpdateMediaSize(aNewIntrinsicSize.value());
|
|
if (frame) {
|
|
nsPresContext* presContext = frame->PresContext();
|
|
PresShell* presShell = presContext->PresShell();
|
|
presShell->FrameNeedsReflow(frame, IntrinsicDirty::StyleChange,
|
|
NS_FRAME_IS_DIRTY);
|
|
}
|
|
}
|
|
|
|
RefPtr<ImageContainer> imageContainer = GetImageContainer();
|
|
bool asyncInvalidate =
|
|
imageContainer && imageContainer->IsAsync() && !aForceInvalidate;
|
|
if (frame) {
|
|
if (aImageSizeChanged) {
|
|
frame->InvalidateFrame();
|
|
} else {
|
|
frame->InvalidateLayer(DisplayItemType::TYPE_VIDEO, nullptr, nullptr,
|
|
asyncInvalidate ? nsIFrame::UPDATE_IS_ASYNC : 0);
|
|
}
|
|
}
|
|
|
|
SVGObserverUtils::InvalidateDirectRenderingObservers(this);
|
|
}
|
|
|
|
void HTMLMediaElement::UpdateMediaSize(const nsIntSize& aSize) {
|
|
if (IsVideo() && mReadyState != HAVE_NOTHING &&
|
|
mMediaInfo.mVideo.mDisplay != aSize) {
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("resize"));
|
|
}
|
|
|
|
mMediaInfo.mVideo.mDisplay = aSize;
|
|
UpdateReadyStateInternal();
|
|
}
|
|
|
|
void HTMLMediaElement::UpdateInitialMediaSize(const nsIntSize& aSize) {
|
|
if (!mMediaInfo.HasVideo()) {
|
|
UpdateMediaSize(aSize);
|
|
}
|
|
|
|
if (!mVideoFrameListener) {
|
|
return;
|
|
}
|
|
|
|
if (!mSelectedVideoStreamTrack) {
|
|
MOZ_ASSERT(false);
|
|
return;
|
|
}
|
|
|
|
mSelectedVideoStreamTrack->RemoveDirectListener(mVideoFrameListener);
|
|
mVideoFrameListener->Forget();
|
|
mVideoFrameListener = nullptr;
|
|
}
|
|
|
|
void HTMLMediaElement::SuspendOrResumeElement(bool aPauseElement,
|
|
bool aSuspendEvents) {
|
|
LOG(LogLevel::Debug,
|
|
("%p SuspendOrResumeElement(pause=%d, suspendEvents=%d) hidden=%d", this,
|
|
aPauseElement, aSuspendEvents, OwnerDoc()->Hidden()));
|
|
|
|
if (aPauseElement != mPausedForInactiveDocumentOrChannel) {
|
|
mPausedForInactiveDocumentOrChannel = aPauseElement;
|
|
UpdateSrcMediaStreamPlaying();
|
|
UpdateAudioChannelPlayingState();
|
|
if (aPauseElement) {
|
|
mCurrentLoadPlayTime.Pause();
|
|
ReportTelemetry();
|
|
|
|
// For EME content, we may force destruction of the CDM client (and CDM
|
|
// instance if this is the last client for that CDM instance) and
|
|
// the CDM's decoder. This ensures the CDM gets reliable and prompt
|
|
// shutdown notifications, as it may have book-keeping it needs
|
|
// to do on shutdown.
|
|
if (mMediaKeys) {
|
|
nsAutoString keySystem;
|
|
mMediaKeys->GetKeySystem(keySystem);
|
|
}
|
|
if (mDecoder) {
|
|
mDecoder->Pause();
|
|
mDecoder->Suspend();
|
|
}
|
|
mEventDeliveryPaused = aSuspendEvents;
|
|
} else {
|
|
if (!mPaused) {
|
|
mCurrentLoadPlayTime.Start();
|
|
}
|
|
if (mDecoder) {
|
|
mDecoder->Resume();
|
|
if (!mPaused && !mDecoder->IsEnded()) {
|
|
mDecoder->Play();
|
|
}
|
|
}
|
|
if (mEventDeliveryPaused) {
|
|
mEventDeliveryPaused = false;
|
|
DispatchPendingMediaEvents();
|
|
}
|
|
// If the media element has been blocked and isn't still allowed to play
|
|
// when it comes back from the bfcache, we would notify front end to show
|
|
// the blocking icon in order to inform user that the site is still being
|
|
// blocked.
|
|
if (mHasEverBeenBlockedForAutoplay &&
|
|
!AutoplayPolicy::IsAllowedToPlay(*this)) {
|
|
OwnerDoc()->MaybeNotifyAutoplayBlocked();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
bool HTMLMediaElement::IsBeingDestroyed() {
|
|
Document* ownerDoc = OwnerDoc();
|
|
nsIDocShell* docShell = ownerDoc ? ownerDoc->GetDocShell() : nullptr;
|
|
bool isBeingDestroyed = false;
|
|
if (docShell) {
|
|
docShell->IsBeingDestroyed(&isBeingDestroyed);
|
|
}
|
|
return isBeingDestroyed;
|
|
}
|
|
|
|
void HTMLMediaElement::NotifyOwnerDocumentActivityChanged() {
|
|
bool visible = !IsHidden();
|
|
if (visible) {
|
|
// Visible -> Just pause hidden play time (no-op if already paused).
|
|
HiddenVideoStop();
|
|
} else if (mPlayTime.IsStarted()) {
|
|
// Not visible, play time is running -> Start hidden play time if needed.
|
|
HiddenVideoStart();
|
|
}
|
|
|
|
if (mDecoder && !IsBeingDestroyed()) {
|
|
NotifyDecoderActivityChanges();
|
|
}
|
|
|
|
bool pauseElement = ShouldElementBePaused();
|
|
SuspendOrResumeElement(pauseElement, !IsActive());
|
|
|
|
// If the owning document has become inactive we should shutdown the CDM.
|
|
if (!OwnerDoc()->IsCurrentActiveDocument() && mMediaKeys) {
|
|
// We don't shutdown MediaKeys here because it also listens for document
|
|
// activity and will take care of shutting down itself.
|
|
DDUNLINKCHILD(mMediaKeys.get());
|
|
mMediaKeys = nullptr;
|
|
if (mDecoder) {
|
|
ShutdownDecoder();
|
|
}
|
|
}
|
|
|
|
AddRemoveSelfReference();
|
|
}
|
|
|
|
void HTMLMediaElement::AddRemoveSelfReference() {
|
|
// XXX we could release earlier here in many situations if we examined
|
|
// which event listeners are attached. Right now we assume there is a
|
|
// potential listener for every event. We would also have to keep the
|
|
// element alive if it was playing and producing audio output --- right now
|
|
// that's covered by the !mPaused check.
|
|
Document* ownerDoc = OwnerDoc();
|
|
|
|
// See the comment at the top of this file for the explanation of this
|
|
// boolean expression.
|
|
bool needSelfReference =
|
|
!mShuttingDown && ownerDoc->IsActive() &&
|
|
(mDelayingLoadEvent || (!mPaused && !Ended()) ||
|
|
(mDecoder && mDecoder->IsSeeking()) || CanActivateAutoplay() ||
|
|
(mMediaSource ? mProgressTimer : mNetworkState == NETWORK_LOADING));
|
|
|
|
if (needSelfReference != mHasSelfReference) {
|
|
mHasSelfReference = needSelfReference;
|
|
RefPtr<HTMLMediaElement> self = this;
|
|
if (needSelfReference) {
|
|
// The shutdown observer will hold a strong reference to us. This
|
|
// will do to keep us alive. We need to know about shutdown so that
|
|
// we can release our self-reference.
|
|
mMainThreadEventTarget->Dispatch(NS_NewRunnableFunction(
|
|
"dom::HTMLMediaElement::AddSelfReference",
|
|
[self]() { self->mShutdownObserver->AddRefMediaElement(); }));
|
|
} else {
|
|
// Dispatch Release asynchronously so that we don't destroy this object
|
|
// inside a call stack of method calls on this object
|
|
mMainThreadEventTarget->Dispatch(NS_NewRunnableFunction(
|
|
"dom::HTMLMediaElement::AddSelfReference",
|
|
[self]() { self->mShutdownObserver->ReleaseMediaElement(); }));
|
|
}
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::NotifyShutdownEvent() {
|
|
mShuttingDown = true;
|
|
ResetState();
|
|
AddRemoveSelfReference();
|
|
}
|
|
|
|
void HTMLMediaElement::DispatchAsyncSourceError(nsIContent* aSourceElement) {
|
|
LOG_EVENT(LogLevel::Debug, ("%p Queuing simple source error event", this));
|
|
|
|
nsCOMPtr<nsIRunnable> event =
|
|
new nsSourceErrorEventRunner(this, aSourceElement);
|
|
mMainThreadEventTarget->Dispatch(event.forget());
|
|
}
|
|
|
|
void HTMLMediaElement::NotifyAddedSource() {
|
|
// If a source element is inserted as a child of a media element
|
|
// that has no src attribute and whose networkState has the value
|
|
// NETWORK_EMPTY, the user agent must invoke the media element's
|
|
// resource selection algorithm.
|
|
if (!HasAttr(kNameSpaceID_None, nsGkAtoms::src) &&
|
|
mNetworkState == NETWORK_EMPTY) {
|
|
AssertReadyStateIsNothing();
|
|
QueueSelectResourceTask();
|
|
}
|
|
|
|
// A load was paused in the resource selection algorithm, waiting for
|
|
// a new source child to be added, resume the resource selection algorithm.
|
|
if (mLoadWaitStatus == WAITING_FOR_SOURCE) {
|
|
// Rest the flag so we don't queue multiple LoadFromSourceTask() when
|
|
// multiple <source> are attached in an event loop.
|
|
mLoadWaitStatus = NOT_WAITING;
|
|
QueueLoadFromSourceTask();
|
|
}
|
|
}
|
|
|
|
Element* HTMLMediaElement::GetNextSource() {
|
|
mSourceLoadCandidate = nullptr;
|
|
|
|
while (true) {
|
|
if (mSourcePointer == nsINode::GetLastChild()) {
|
|
return nullptr; // no more children
|
|
}
|
|
|
|
if (!mSourcePointer) {
|
|
mSourcePointer = nsINode::GetFirstChild();
|
|
} else {
|
|
mSourcePointer = mSourcePointer->GetNextSibling();
|
|
}
|
|
nsIContent* child = mSourcePointer;
|
|
|
|
// If child is a <source> element, it is the next candidate.
|
|
if (child && child->IsHTMLElement(nsGkAtoms::source)) {
|
|
mSourceLoadCandidate = child;
|
|
return child->AsElement();
|
|
}
|
|
}
|
|
MOZ_ASSERT_UNREACHABLE("Execution should not reach here!");
|
|
return nullptr;
|
|
}
|
|
|
|
void HTMLMediaElement::ChangeDelayLoadStatus(bool aDelay) {
|
|
if (mDelayingLoadEvent == aDelay) return;
|
|
|
|
mDelayingLoadEvent = aDelay;
|
|
|
|
LOG(LogLevel::Debug, ("%p ChangeDelayLoadStatus(%d) doc=0x%p", this, aDelay,
|
|
mLoadBlockedDoc.get()));
|
|
if (mDecoder) {
|
|
mDecoder->SetLoadInBackground(!aDelay);
|
|
}
|
|
if (aDelay) {
|
|
mLoadBlockedDoc = OwnerDoc();
|
|
mLoadBlockedDoc->BlockOnload();
|
|
} else {
|
|
// mLoadBlockedDoc might be null due to GC unlinking
|
|
if (mLoadBlockedDoc) {
|
|
mLoadBlockedDoc->UnblockOnload(false);
|
|
mLoadBlockedDoc = nullptr;
|
|
}
|
|
}
|
|
|
|
// We changed mDelayingLoadEvent which can affect AddRemoveSelfReference
|
|
AddRemoveSelfReference();
|
|
}
|
|
|
|
already_AddRefed<nsILoadGroup> HTMLMediaElement::GetDocumentLoadGroup() {
|
|
if (!OwnerDoc()->IsActive()) {
|
|
NS_WARNING("Load group requested for media element in inactive document.");
|
|
}
|
|
return OwnerDoc()->GetDocumentLoadGroup();
|
|
}
|
|
|
|
nsresult HTMLMediaElement::CopyInnerTo(Element* aDest) {
|
|
nsresult rv = nsGenericHTMLElement::CopyInnerTo(aDest);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
if (aDest->OwnerDoc()->IsStaticDocument()) {
|
|
HTMLMediaElement* dest = static_cast<HTMLMediaElement*>(aDest);
|
|
dest->SetMediaInfo(mMediaInfo);
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
already_AddRefed<TimeRanges> HTMLMediaElement::Buffered() const {
|
|
media::TimeIntervals buffered =
|
|
mDecoder ? mDecoder->GetBuffered() : media::TimeIntervals();
|
|
RefPtr<TimeRanges> ranges = new TimeRanges(ToSupports(OwnerDoc()), buffered);
|
|
return ranges.forget();
|
|
}
|
|
|
|
void HTMLMediaElement::SetRequestHeaders(nsIHttpChannel* aChannel) {
|
|
// Send Accept header for video and audio types only (Bug 489071)
|
|
SetAcceptHeader(aChannel);
|
|
|
|
// Apache doesn't send Content-Length when gzip transfer encoding is used,
|
|
// which prevents us from estimating the video length (if explicit
|
|
// Content-Duration and a length spec in the container are not present either)
|
|
// and from seeking. So, disable the standard "Accept-Encoding: gzip,deflate"
|
|
// that we usually send. See bug 614760.
|
|
DebugOnly<nsresult> rv = aChannel->SetRequestHeader(
|
|
NS_LITERAL_CSTRING("Accept-Encoding"), EmptyCString(), false);
|
|
MOZ_ASSERT(NS_SUCCEEDED(rv));
|
|
|
|
// Set the Referer header
|
|
nsCOMPtr<nsIReferrerInfo> referrerInfo = new ReferrerInfo(
|
|
OwnerDoc()->GetDocumentURI(), OwnerDoc()->GetReferrerPolicy());
|
|
rv = aChannel->SetReferrerInfoWithoutClone(referrerInfo);
|
|
MOZ_ASSERT(NS_SUCCEEDED(rv));
|
|
}
|
|
|
|
void HTMLMediaElement::FireTimeUpdate(bool aPeriodic) {
|
|
NS_ASSERTION(NS_IsMainThread(), "Should be on main thread.");
|
|
|
|
TimeStamp now = TimeStamp::Now();
|
|
double time = CurrentTime();
|
|
|
|
// Fire a timeupdate event if this is not a periodic update (i.e. it's a
|
|
// timeupdate event mandated by the spec), or if it's a periodic update
|
|
// and TIMEUPDATE_MS has passed since the last timeupdate event fired and
|
|
// the time has changed.
|
|
if (!aPeriodic || (mLastCurrentTime != time &&
|
|
(mTimeUpdateTime.IsNull() ||
|
|
now - mTimeUpdateTime >=
|
|
TimeDuration::FromMilliseconds(TIMEUPDATE_MS)))) {
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("timeupdate"));
|
|
mTimeUpdateTime = now;
|
|
mLastCurrentTime = time;
|
|
}
|
|
if (mFragmentEnd >= 0.0 && time >= mFragmentEnd) {
|
|
Pause();
|
|
mFragmentEnd = -1.0;
|
|
mFragmentStart = -1.0;
|
|
mDecoder->SetFragmentEndTime(mFragmentEnd);
|
|
}
|
|
|
|
// Update the cues displaying on the video.
|
|
// Here mTextTrackManager can be null if the cycle collector has unlinked
|
|
// us before our parent. In that case UnbindFromTree will call us
|
|
// when our parent is unlinked.
|
|
if (mTextTrackManager) {
|
|
mTextTrackManager->TimeMarchesOn();
|
|
}
|
|
}
|
|
|
|
MediaStream* HTMLMediaElement::GetSrcMediaStream() const {
|
|
if (!mSrcStream) {
|
|
return nullptr;
|
|
}
|
|
return mSrcStream->GetPlaybackStream();
|
|
}
|
|
|
|
MediaError* HTMLMediaElement::GetError() const { return mErrorSink->mError; }
|
|
|
|
void HTMLMediaElement::GetCurrentSpec(nsCString& aString) {
|
|
if (mLoadingSrc) {
|
|
mLoadingSrc->GetSpec(aString);
|
|
} else {
|
|
aString.Truncate();
|
|
}
|
|
}
|
|
|
|
double HTMLMediaElement::MozFragmentEnd() {
|
|
double duration = Duration();
|
|
|
|
// If there is no end fragment, or the fragment end is greater than the
|
|
// duration, return the duration.
|
|
return (mFragmentEnd < 0.0 || mFragmentEnd > duration) ? duration
|
|
: mFragmentEnd;
|
|
}
|
|
|
|
void HTMLMediaElement::SetDefaultPlaybackRate(double aDefaultPlaybackRate,
|
|
ErrorResult& aRv) {
|
|
if (aDefaultPlaybackRate < 0) {
|
|
aRv.Throw(NS_ERROR_NOT_IMPLEMENTED);
|
|
return;
|
|
}
|
|
|
|
mDefaultPlaybackRate = ClampPlaybackRate(aDefaultPlaybackRate);
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("ratechange"));
|
|
}
|
|
|
|
void HTMLMediaElement::SetPlaybackRate(double aPlaybackRate, ErrorResult& aRv) {
|
|
// Changing the playback rate of a media that has more than two channels is
|
|
// not supported.
|
|
if (aPlaybackRate < 0) {
|
|
aRv.Throw(NS_ERROR_DOM_NOT_SUPPORTED_ERR);
|
|
return;
|
|
}
|
|
|
|
if (mPlaybackRate == aPlaybackRate) {
|
|
return;
|
|
}
|
|
|
|
mPlaybackRate = aPlaybackRate;
|
|
|
|
if (mPlaybackRate != 0.0 &&
|
|
(mPlaybackRate > THRESHOLD_HIGH_PLAYBACKRATE_AUDIO ||
|
|
mPlaybackRate < THRESHOLD_LOW_PLAYBACKRATE_AUDIO)) {
|
|
SetMutedInternal(mMuted | MUTED_BY_INVALID_PLAYBACK_RATE);
|
|
} else {
|
|
SetMutedInternal(mMuted & ~MUTED_BY_INVALID_PLAYBACK_RATE);
|
|
}
|
|
|
|
if (mDecoder) {
|
|
mDecoder->SetPlaybackRate(ClampPlaybackRate(mPlaybackRate));
|
|
}
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("ratechange"));
|
|
}
|
|
|
|
void HTMLMediaElement::SetMozPreservesPitch(bool aPreservesPitch) {
|
|
mPreservesPitch = aPreservesPitch;
|
|
if (mDecoder) {
|
|
mDecoder->SetPreservesPitch(mPreservesPitch);
|
|
}
|
|
}
|
|
|
|
ImageContainer* HTMLMediaElement::GetImageContainer() {
|
|
VideoFrameContainer* container = GetVideoFrameContainer();
|
|
return container ? container->GetImageContainer() : nullptr;
|
|
}
|
|
|
|
void HTMLMediaElement::UpdateAudioChannelPlayingState(bool aForcePlaying) {
|
|
if (mAudioChannelWrapper) {
|
|
mAudioChannelWrapper->UpdateAudioChannelPlayingState(aForcePlaying);
|
|
}
|
|
}
|
|
|
|
bool HTMLMediaElement::AudioChannelAgentBlockedPlay() {
|
|
if (!mAudioChannelWrapper) {
|
|
// If the mAudioChannelWrapper doesn't exist that means the CC happened.
|
|
LOG(LogLevel::Debug,
|
|
("%p AudioChannelAgentBlockedPlay() returning true due to null "
|
|
"AudioChannelAgent.",
|
|
this));
|
|
return true;
|
|
}
|
|
|
|
// Note: SUSPENDED_PAUSE and SUSPENDED_BLOCK will be merged into one single
|
|
// state.
|
|
const auto suspendType = mAudioChannelWrapper->GetSuspendType();
|
|
return suspendType == nsISuspendedTypes::SUSPENDED_PAUSE ||
|
|
suspendType == nsISuspendedTypes::SUSPENDED_BLOCK;
|
|
}
|
|
|
|
static const char* VisibilityString(Visibility aVisibility) {
|
|
switch (aVisibility) {
|
|
case Visibility::Untracked: {
|
|
return "Untracked";
|
|
}
|
|
case Visibility::ApproximatelyNonVisible: {
|
|
return "ApproximatelyNonVisible";
|
|
}
|
|
case Visibility::ApproximatelyVisible: {
|
|
return "ApproximatelyVisible";
|
|
}
|
|
}
|
|
|
|
return "NAN";
|
|
}
|
|
|
|
void HTMLMediaElement::OnVisibilityChange(Visibility aNewVisibility) {
|
|
LOG(LogLevel::Debug,
|
|
("OnVisibilityChange(): %s\n", VisibilityString(aNewVisibility)));
|
|
|
|
mVisibilityState = aNewVisibility;
|
|
if (StaticPrefs::MediaTestVideoSuspend()) {
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("visibilitychanged"));
|
|
}
|
|
|
|
if (!mDecoder) {
|
|
return;
|
|
}
|
|
|
|
switch (aNewVisibility) {
|
|
case Visibility::Untracked: {
|
|
MOZ_ASSERT_UNREACHABLE("Shouldn't notify for untracked visibility");
|
|
return;
|
|
}
|
|
case Visibility::ApproximatelyNonVisible: {
|
|
if (mPlayTime.IsStarted()) {
|
|
// Not visible, play time is running -> Start hidden play time if
|
|
// needed.
|
|
HiddenVideoStart();
|
|
}
|
|
break;
|
|
}
|
|
case Visibility::ApproximatelyVisible: {
|
|
// Visible -> Just pause hidden play time (no-op if already paused).
|
|
HiddenVideoStop();
|
|
break;
|
|
}
|
|
}
|
|
|
|
NotifyDecoderActivityChanges();
|
|
}
|
|
|
|
MediaKeys* HTMLMediaElement::GetMediaKeys() const { return mMediaKeys; }
|
|
|
|
bool HTMLMediaElement::ContainsRestrictedContent() {
|
|
return GetMediaKeys() != nullptr;
|
|
}
|
|
|
|
void HTMLMediaElement::SetCDMProxyFailure(const MediaResult& aResult) {
|
|
LOG(LogLevel::Debug, ("%s", __func__));
|
|
MOZ_ASSERT(mSetMediaKeysDOMPromise);
|
|
|
|
ResetSetMediaKeysTempVariables();
|
|
|
|
mSetMediaKeysDOMPromise->MaybeReject(aResult.Code(), aResult.Message());
|
|
}
|
|
|
|
void HTMLMediaElement::RemoveMediaKeys() {
|
|
LOG(LogLevel::Debug, ("%s", __func__));
|
|
// 5.2.3 Stop using the CDM instance represented by the mediaKeys attribute
|
|
// to decrypt media data and remove the association with the media element.
|
|
if (mMediaKeys) {
|
|
mMediaKeys->Unbind();
|
|
}
|
|
mMediaKeys = nullptr;
|
|
}
|
|
|
|
bool HTMLMediaElement::TryRemoveMediaKeysAssociation() {
|
|
MOZ_ASSERT(mMediaKeys);
|
|
LOG(LogLevel::Debug, ("%s", __func__));
|
|
// 5.2.1 If the user agent or CDM do not support removing the association,
|
|
// let this object's attaching media keys value be false and reject promise
|
|
// with a new DOMException whose name is NotSupportedError.
|
|
// 5.2.2 If the association cannot currently be removed, let this object's
|
|
// attaching media keys value be false and reject promise with a new
|
|
// DOMException whose name is InvalidStateError.
|
|
if (mDecoder) {
|
|
RefPtr<HTMLMediaElement> self = this;
|
|
mDecoder->SetCDMProxy(nullptr)
|
|
->Then(
|
|
mAbstractMainThread, __func__,
|
|
[self]() {
|
|
self->mSetCDMRequest.Complete();
|
|
|
|
self->RemoveMediaKeys();
|
|
if (self->AttachNewMediaKeys()) {
|
|
// No incoming MediaKeys object or MediaDecoder is not
|
|
// created yet.
|
|
self->MakeAssociationWithCDMResolved();
|
|
}
|
|
},
|
|
[self](const MediaResult& aResult) {
|
|
self->mSetCDMRequest.Complete();
|
|
// 5.2.4 If the preceding step failed, let this object's
|
|
// attaching media keys value be false and reject promise with
|
|
// a new DOMException whose name is the appropriate error name.
|
|
self->SetCDMProxyFailure(aResult);
|
|
})
|
|
->Track(mSetCDMRequest);
|
|
return false;
|
|
}
|
|
|
|
RemoveMediaKeys();
|
|
return true;
|
|
}
|
|
|
|
bool HTMLMediaElement::DetachExistingMediaKeys() {
|
|
LOG(LogLevel::Debug, ("%s", __func__));
|
|
MOZ_ASSERT(mSetMediaKeysDOMPromise);
|
|
// 5.1 If mediaKeys is not null, CDM instance represented by mediaKeys is
|
|
// already in use by another media element, and the user agent is unable
|
|
// to use it with this element, let this object's attaching media keys
|
|
// value be false and reject promise with a new DOMException whose name
|
|
// is QuotaExceededError.
|
|
if (mIncomingMediaKeys && mIncomingMediaKeys->IsBoundToMediaElement()) {
|
|
SetCDMProxyFailure(MediaResult(
|
|
NS_ERROR_DOM_QUOTA_EXCEEDED_ERR,
|
|
"MediaKeys object is already bound to another HTMLMediaElement"));
|
|
return false;
|
|
}
|
|
|
|
// 5.2 If the mediaKeys attribute is not null, run the following steps:
|
|
if (mMediaKeys) {
|
|
return TryRemoveMediaKeysAssociation();
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void HTMLMediaElement::MakeAssociationWithCDMResolved() {
|
|
LOG(LogLevel::Debug, ("%s", __func__));
|
|
MOZ_ASSERT(mSetMediaKeysDOMPromise);
|
|
|
|
// 5.4 Set the mediaKeys attribute to mediaKeys.
|
|
mMediaKeys = mIncomingMediaKeys;
|
|
// 5.5 Let this object's attaching media keys value be false.
|
|
ResetSetMediaKeysTempVariables();
|
|
// 5.6 Resolve promise.
|
|
mSetMediaKeysDOMPromise->MaybeResolveWithUndefined();
|
|
mSetMediaKeysDOMPromise = nullptr;
|
|
}
|
|
|
|
bool HTMLMediaElement::TryMakeAssociationWithCDM(CDMProxy* aProxy) {
|
|
LOG(LogLevel::Debug, ("%s", __func__));
|
|
MOZ_ASSERT(aProxy);
|
|
|
|
// 5.3.3 Queue a task to run the "Attempt to Resume Playback If Necessary"
|
|
// algorithm on the media element.
|
|
// Note: Setting the CDMProxy on the MediaDecoder will unblock playback.
|
|
if (mDecoder) {
|
|
// CDMProxy is set asynchronously in MediaFormatReader, once it's done,
|
|
// HTMLMediaElement should resolve or reject the DOM promise.
|
|
RefPtr<HTMLMediaElement> self = this;
|
|
mDecoder->SetCDMProxy(aProxy)
|
|
->Then(
|
|
mAbstractMainThread, __func__,
|
|
[self]() {
|
|
self->mSetCDMRequest.Complete();
|
|
self->MakeAssociationWithCDMResolved();
|
|
},
|
|
[self](const MediaResult& aResult) {
|
|
self->mSetCDMRequest.Complete();
|
|
self->SetCDMProxyFailure(aResult);
|
|
})
|
|
->Track(mSetCDMRequest);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool HTMLMediaElement::AttachNewMediaKeys() {
|
|
LOG(LogLevel::Debug,
|
|
("%s incoming MediaKeys(%p)", __func__, mIncomingMediaKeys.get()));
|
|
MOZ_ASSERT(mSetMediaKeysDOMPromise);
|
|
|
|
// 5.3. If mediaKeys is not null, run the following steps:
|
|
if (mIncomingMediaKeys) {
|
|
auto cdmProxy = mIncomingMediaKeys->GetCDMProxy();
|
|
if (!cdmProxy) {
|
|
SetCDMProxyFailure(MediaResult(
|
|
NS_ERROR_DOM_INVALID_STATE_ERR,
|
|
"CDM crashed before binding MediaKeys object to HTMLMediaElement"));
|
|
return false;
|
|
}
|
|
|
|
// 5.3.1 Associate the CDM instance represented by mediaKeys with the
|
|
// media element for decrypting media data.
|
|
if (NS_FAILED(mIncomingMediaKeys->Bind(this))) {
|
|
// 5.3.2 If the preceding step failed, run the following steps:
|
|
|
|
// 5.3.2.1 Set the mediaKeys attribute to null.
|
|
mMediaKeys = nullptr;
|
|
// 5.3.2.2 Let this object's attaching media keys value be false.
|
|
// 5.3.2.3 Reject promise with a new DOMException whose name is
|
|
// the appropriate error name.
|
|
SetCDMProxyFailure(
|
|
MediaResult(NS_ERROR_DOM_INVALID_STATE_ERR,
|
|
"Failed to bind MediaKeys object to HTMLMediaElement"));
|
|
return false;
|
|
}
|
|
return TryMakeAssociationWithCDM(cdmProxy);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void HTMLMediaElement::ResetSetMediaKeysTempVariables() {
|
|
mAttachingMediaKey = false;
|
|
mIncomingMediaKeys = nullptr;
|
|
}
|
|
|
|
already_AddRefed<Promise> HTMLMediaElement::SetMediaKeys(
|
|
mozilla::dom::MediaKeys* aMediaKeys, ErrorResult& aRv) {
|
|
LOG(LogLevel::Debug, ("%p SetMediaKeys(%p) mMediaKeys=%p mDecoder=%p", this,
|
|
aMediaKeys, mMediaKeys.get(), mDecoder.get()));
|
|
|
|
if (MozAudioCaptured()) {
|
|
aRv.Throw(NS_ERROR_DOM_NOT_SUPPORTED_ERR);
|
|
return nullptr;
|
|
}
|
|
|
|
nsPIDOMWindowInner* win = OwnerDoc()->GetInnerWindow();
|
|
if (!win) {
|
|
aRv.Throw(NS_ERROR_UNEXPECTED);
|
|
return nullptr;
|
|
}
|
|
RefPtr<DetailedPromise> promise = DetailedPromise::Create(
|
|
win->AsGlobal(), aRv,
|
|
NS_LITERAL_CSTRING("HTMLMediaElement.setMediaKeys"));
|
|
if (aRv.Failed()) {
|
|
return nullptr;
|
|
}
|
|
|
|
// 1. If mediaKeys and the mediaKeys attribute are the same object,
|
|
// return a resolved promise.
|
|
if (mMediaKeys == aMediaKeys) {
|
|
promise->MaybeResolveWithUndefined();
|
|
return promise.forget();
|
|
}
|
|
|
|
// 2. If this object's attaching media keys value is true, return a
|
|
// promise rejected with a new DOMException whose name is InvalidStateError.
|
|
if (mAttachingMediaKey) {
|
|
promise->MaybeReject(
|
|
NS_ERROR_DOM_INVALID_STATE_ERR,
|
|
NS_LITERAL_CSTRING("A MediaKeys object is in attaching operation."));
|
|
return promise.forget();
|
|
}
|
|
|
|
// 3. Let this object's attaching media keys value be true.
|
|
mAttachingMediaKey = true;
|
|
mIncomingMediaKeys = aMediaKeys;
|
|
|
|
// 4. Let promise be a new promise.
|
|
mSetMediaKeysDOMPromise = promise;
|
|
|
|
// 5. Run the following steps in parallel:
|
|
|
|
// 5.1 & 5.2 & 5.3
|
|
if (!DetachExistingMediaKeys() || !AttachNewMediaKeys()) {
|
|
return promise.forget();
|
|
}
|
|
|
|
// 5.4, 5.5, 5.6
|
|
MakeAssociationWithCDMResolved();
|
|
|
|
// 6. Return promise.
|
|
return promise.forget();
|
|
}
|
|
|
|
EventHandlerNonNull* HTMLMediaElement::GetOnencrypted() {
|
|
return EventTarget::GetEventHandler(nsGkAtoms::onencrypted);
|
|
}
|
|
|
|
void HTMLMediaElement::SetOnencrypted(EventHandlerNonNull* aCallback) {
|
|
EventTarget::SetEventHandler(nsGkAtoms::onencrypted, aCallback);
|
|
}
|
|
|
|
EventHandlerNonNull* HTMLMediaElement::GetOnwaitingforkey() {
|
|
return EventTarget::GetEventHandler(nsGkAtoms::onwaitingforkey);
|
|
}
|
|
|
|
void HTMLMediaElement::SetOnwaitingforkey(EventHandlerNonNull* aCallback) {
|
|
EventTarget::SetEventHandler(nsGkAtoms::onwaitingforkey, aCallback);
|
|
}
|
|
|
|
void HTMLMediaElement::DispatchEncrypted(const nsTArray<uint8_t>& aInitData,
|
|
const nsAString& aInitDataType) {
|
|
LOG(LogLevel::Debug, ("%p DispatchEncrypted initDataType='%s'", this,
|
|
NS_ConvertUTF16toUTF8(aInitDataType).get()));
|
|
|
|
if (mReadyState == HAVE_NOTHING) {
|
|
// Ready state not HAVE_METADATA (yet), don't dispatch encrypted now.
|
|
// Queueing for later dispatch in MetadataLoaded.
|
|
mPendingEncryptedInitData.AddInitData(aInitDataType, aInitData);
|
|
return;
|
|
}
|
|
|
|
RefPtr<MediaEncryptedEvent> event;
|
|
if (IsCORSSameOrigin()) {
|
|
event = MediaEncryptedEvent::Constructor(this, aInitDataType, aInitData);
|
|
} else {
|
|
event = MediaEncryptedEvent::Constructor(this);
|
|
}
|
|
|
|
RefPtr<AsyncEventDispatcher> asyncDispatcher =
|
|
new AsyncEventDispatcher(this, event);
|
|
asyncDispatcher->PostDOMEvent();
|
|
}
|
|
|
|
bool HTMLMediaElement::IsEventAttributeNameInternal(nsAtom* aName) {
|
|
return aName == nsGkAtoms::onencrypted ||
|
|
nsGenericHTMLElement::IsEventAttributeNameInternal(aName);
|
|
}
|
|
|
|
already_AddRefed<nsIPrincipal> HTMLMediaElement::GetTopLevelPrincipal() {
|
|
RefPtr<nsIPrincipal> principal;
|
|
nsCOMPtr<nsPIDOMWindowInner> window = OwnerDoc()->GetInnerWindow();
|
|
if (!window) {
|
|
return nullptr;
|
|
}
|
|
// XXXkhuey better hope we always have an outer ...
|
|
nsCOMPtr<nsPIDOMWindowOuter> top = window->GetOuterWindow()->GetTop();
|
|
if (!top) {
|
|
return nullptr;
|
|
}
|
|
Document* doc = top->GetExtantDoc();
|
|
if (!doc) {
|
|
return nullptr;
|
|
}
|
|
principal = doc->NodePrincipal();
|
|
return principal.forget();
|
|
}
|
|
|
|
void HTMLMediaElement::NotifyWaitingForKey() {
|
|
LOG(LogLevel::Debug, ("%p, NotifyWaitingForKey()", this));
|
|
|
|
// http://w3c.github.io/encrypted-media/#wait-for-key
|
|
// 7.3.4 Queue a "waitingforkey" Event
|
|
// 1. Let the media element be the specified HTMLMediaElement object.
|
|
// 2. If the media element's waiting for key value is true, abort these steps.
|
|
if (mWaitingForKey == NOT_WAITING_FOR_KEY) {
|
|
// 3. Set the media element's waiting for key value to true.
|
|
// Note: algorithm continues in UpdateReadyStateInternal() when all decoded
|
|
// data enqueued in the MDSM is consumed.
|
|
mWaitingForKey = WAITING_FOR_KEY;
|
|
UpdateReadyStateInternal();
|
|
}
|
|
}
|
|
|
|
AudioTrackList* HTMLMediaElement::AudioTracks() { return mAudioTrackList; }
|
|
|
|
VideoTrackList* HTMLMediaElement::VideoTracks() { return mVideoTrackList; }
|
|
|
|
TextTrackList* HTMLMediaElement::GetTextTracks() {
|
|
return GetOrCreateTextTrackManager()->GetTextTracks();
|
|
}
|
|
|
|
already_AddRefed<TextTrack> HTMLMediaElement::AddTextTrack(
|
|
TextTrackKind aKind, const nsAString& aLabel, const nsAString& aLanguage) {
|
|
return GetOrCreateTextTrackManager()->AddTextTrack(
|
|
aKind, aLabel, aLanguage, TextTrackMode::Hidden,
|
|
TextTrackReadyState::Loaded, TextTrackSource::AddTextTrack);
|
|
}
|
|
|
|
void HTMLMediaElement::PopulatePendingTextTrackList() {
|
|
if (mTextTrackManager) {
|
|
mTextTrackManager->PopulatePendingList();
|
|
}
|
|
}
|
|
|
|
TextTrackManager* HTMLMediaElement::GetOrCreateTextTrackManager() {
|
|
if (!mTextTrackManager) {
|
|
mTextTrackManager = new TextTrackManager(this);
|
|
mTextTrackManager->AddListeners();
|
|
}
|
|
return mTextTrackManager;
|
|
}
|
|
|
|
MediaDecoderOwner::NextFrameStatus HTMLMediaElement::NextFrameStatus() {
|
|
if (mDecoder) {
|
|
return mDecoder->NextFrameStatus();
|
|
}
|
|
if (mSrcStream) {
|
|
if (mSrcStreamTracksAvailable && !mSrcStreamPlaybackEnded) {
|
|
return NEXT_FRAME_AVAILABLE;
|
|
}
|
|
return NEXT_FRAME_UNAVAILABLE;
|
|
}
|
|
return NEXT_FRAME_UNINITIALIZED;
|
|
}
|
|
|
|
void HTMLMediaElement::SetDecoder(MediaDecoder* aDecoder) {
|
|
MOZ_ASSERT(aDecoder); // Use ShutdownDecoder() to clear.
|
|
if (mDecoder) {
|
|
ShutdownDecoder();
|
|
}
|
|
mDecoder = aDecoder;
|
|
DDLINKCHILD("decoder", mDecoder.get());
|
|
if (mDecoder && mForcedHidden) {
|
|
mDecoder->SetForcedHidden(mForcedHidden);
|
|
}
|
|
}
|
|
|
|
float HTMLMediaElement::ComputedVolume() const {
|
|
return mMuted
|
|
? 0.0f
|
|
: mAudioChannelWrapper ? mAudioChannelWrapper->GetEffectiveVolume()
|
|
: mVolume;
|
|
}
|
|
|
|
bool HTMLMediaElement::ComputedMuted() const {
|
|
return (mMuted & MUTED_BY_AUDIO_CHANNEL);
|
|
}
|
|
|
|
nsSuspendedTypes HTMLMediaElement::ComputedSuspended() const {
|
|
return mAudioChannelWrapper ? mAudioChannelWrapper->GetSuspendType()
|
|
: nsISuspendedTypes::NONE_SUSPENDED;
|
|
}
|
|
|
|
bool HTMLMediaElement::IsCurrentlyPlaying() const {
|
|
// We have playable data, but we still need to check whether data is "real"
|
|
// current data.
|
|
return mReadyState >= HAVE_CURRENT_DATA && !IsPlaybackEnded();
|
|
}
|
|
|
|
void HTMLMediaElement::SetAudibleState(bool aAudible) {
|
|
if (mIsAudioTrackAudible != aAudible) {
|
|
UpdateAudioTrackSilenceRange(aAudible);
|
|
mIsAudioTrackAudible = aAudible;
|
|
NotifyAudioPlaybackChanged(
|
|
AudioChannelService::AudibleChangedReasons::eDataAudibleChanged);
|
|
}
|
|
}
|
|
|
|
bool HTMLMediaElement::IsAudioTrackCurrentlySilent() const {
|
|
return HasAudio() && !mIsAudioTrackAudible;
|
|
}
|
|
|
|
void HTMLMediaElement::UpdateAudioTrackSilenceRange(bool aAudible) {
|
|
if (!HasAudio()) {
|
|
return;
|
|
}
|
|
|
|
if (!aAudible) {
|
|
mAudioTrackSilenceStartedTime = CurrentTime();
|
|
return;
|
|
}
|
|
|
|
AccumulateAudioTrackSilence();
|
|
}
|
|
|
|
void HTMLMediaElement::AccumulateAudioTrackSilence() {
|
|
MOZ_ASSERT(HasAudio());
|
|
const double current = CurrentTime();
|
|
if (current < mAudioTrackSilenceStartedTime) {
|
|
return;
|
|
}
|
|
const auto start =
|
|
media::TimeUnit::FromSeconds(mAudioTrackSilenceStartedTime);
|
|
const auto end = media::TimeUnit::FromSeconds(current);
|
|
mSilenceTimeRanges += media::TimeInterval(start, end);
|
|
}
|
|
|
|
void HTMLMediaElement::ReportAudioTrackSilenceProportionTelemetry() {
|
|
if (!HasAudio()) {
|
|
return;
|
|
}
|
|
|
|
// Add last silence range to our ranges set.
|
|
if (!mIsAudioTrackAudible) {
|
|
AccumulateAudioTrackSilence();
|
|
}
|
|
|
|
RefPtr<TimeRanges> ranges = Played();
|
|
const uint32_t lengthPlayedRange = ranges->Length();
|
|
const uint32_t lengthSilenceRange = mSilenceTimeRanges.Length();
|
|
if (!lengthPlayedRange || !lengthSilenceRange) {
|
|
return;
|
|
}
|
|
|
|
double playedTime = 0.0, silenceTime = 0.0;
|
|
for (uint32_t idx = 0; idx < lengthPlayedRange; idx++) {
|
|
playedTime += ranges->End(idx) - ranges->Start(idx);
|
|
}
|
|
|
|
for (uint32_t idx = 0; idx < lengthSilenceRange; idx++) {
|
|
silenceTime += mSilenceTimeRanges.End(idx).ToSeconds() -
|
|
mSilenceTimeRanges.Start(idx).ToSeconds();
|
|
}
|
|
|
|
double silenceProportion = (silenceTime / playedTime) * 100;
|
|
// silenceProportion should be in the range [0, 100]
|
|
silenceProportion = std::min(100.0, std::max(silenceProportion, 0.0));
|
|
Telemetry::Accumulate(Telemetry::AUDIO_TRACK_SILENCE_PROPORTION,
|
|
silenceProportion);
|
|
}
|
|
|
|
void HTMLMediaElement::NotifyAudioPlaybackChanged(
|
|
AudibleChangedReasons aReason) {
|
|
if (mAudioChannelWrapper) {
|
|
mAudioChannelWrapper->NotifyAudioPlaybackChanged(aReason);
|
|
}
|
|
// only request wake lock for audible media.
|
|
UpdateWakeLock();
|
|
}
|
|
|
|
bool HTMLMediaElement::ShouldElementBePaused() {
|
|
// Bfcached page or inactive document.
|
|
if (!IsActive()) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void HTMLMediaElement::SetMediaInfo(const MediaInfo& aInfo) {
|
|
const bool oldHasAudio = mMediaInfo.HasAudio();
|
|
mMediaInfo = aInfo;
|
|
if (aInfo.HasAudio() != oldHasAudio) {
|
|
UpdateAudioChannelPlayingState();
|
|
NotifyAudioPlaybackChanged(
|
|
AudioChannelService::AudibleChangedReasons::eDataAudibleChanged);
|
|
}
|
|
if (mAudioChannelWrapper) {
|
|
mAudioChannelWrapper->AudioCaptureStreamChangeIfNeeded();
|
|
}
|
|
UpdateWakeLock();
|
|
}
|
|
|
|
void HTMLMediaElement::AudioCaptureStreamChange(bool aCapture) {
|
|
// No need to capture a silence media element.
|
|
if (!HasAudio()) {
|
|
return;
|
|
}
|
|
|
|
if (aCapture && !mCaptureStreamPort) {
|
|
nsCOMPtr<nsPIDOMWindowInner> window = OwnerDoc()->GetInnerWindow();
|
|
if (!OwnerDoc()->GetInnerWindow()) {
|
|
return;
|
|
}
|
|
|
|
uint64_t id = window->WindowID();
|
|
MediaStreamGraph* msg = MediaStreamGraph::GetInstance(
|
|
MediaStreamGraph::AUDIO_THREAD_DRIVER, window,
|
|
MediaStreamGraph::REQUEST_DEFAULT_SAMPLE_RATE);
|
|
|
|
if (GetSrcMediaStream()) {
|
|
mCaptureStreamPort = msg->ConnectToCaptureStream(id, GetSrcMediaStream());
|
|
} else {
|
|
RefPtr<DOMMediaStream> stream =
|
|
CaptureStreamInternal(StreamCaptureBehavior::CONTINUE_WHEN_ENDED,
|
|
StreamCaptureType::CAPTURE_AUDIO, msg);
|
|
mCaptureStreamPort =
|
|
msg->ConnectToCaptureStream(id, stream->GetPlaybackStream());
|
|
}
|
|
} else if (!aCapture && mCaptureStreamPort) {
|
|
if (mDecoder) {
|
|
ProcessedMediaStream* ps =
|
|
mCaptureStreamPort->GetSource()->AsProcessedStream();
|
|
MOZ_ASSERT(ps);
|
|
|
|
for (uint32_t i = 0; i < mOutputStreams.Length(); i++) {
|
|
if (mOutputStreams[i].mStream->GetPlaybackStream() == ps) {
|
|
mDecoder->RemoveOutputStream(mOutputStreams[i].mStream);
|
|
mOutputStreams.RemoveElementAt(i);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
mCaptureStreamPort->Destroy();
|
|
mCaptureStreamPort = nullptr;
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::NotifyCueDisplayStatesChanged() {
|
|
if (!mTextTrackManager) {
|
|
return;
|
|
}
|
|
|
|
mTextTrackManager->DispatchUpdateCueDisplay();
|
|
}
|
|
|
|
void HTMLMediaElement::MarkAsContentSource(CallerAPI aAPI) {
|
|
const bool isVisible = mVisibilityState == Visibility::ApproximatelyVisible;
|
|
|
|
if (isVisible) {
|
|
// 0 = ALL_VISIBLE
|
|
Telemetry::Accumulate(Telemetry::VIDEO_AS_CONTENT_SOURCE, 0);
|
|
} else {
|
|
// 1 = ALL_INVISIBLE
|
|
Telemetry::Accumulate(Telemetry::VIDEO_AS_CONTENT_SOURCE, 1);
|
|
|
|
if (IsInComposedDoc()) {
|
|
// 0 = ALL_IN_TREE
|
|
Telemetry::Accumulate(Telemetry::VIDEO_AS_CONTENT_SOURCE_IN_TREE_OR_NOT,
|
|
0);
|
|
} else {
|
|
// 1 = ALL_NOT_IN_TREE
|
|
Telemetry::Accumulate(Telemetry::VIDEO_AS_CONTENT_SOURCE_IN_TREE_OR_NOT,
|
|
1);
|
|
}
|
|
}
|
|
|
|
switch (aAPI) {
|
|
case CallerAPI::DRAW_IMAGE: {
|
|
if (isVisible) {
|
|
// 2 = drawImage_VISIBLE
|
|
Telemetry::Accumulate(Telemetry::VIDEO_AS_CONTENT_SOURCE, 2);
|
|
} else {
|
|
// 3 = drawImage_INVISIBLE
|
|
Telemetry::Accumulate(Telemetry::VIDEO_AS_CONTENT_SOURCE, 3);
|
|
|
|
if (IsInComposedDoc()) {
|
|
// 2 = drawImage_IN_TREE
|
|
Telemetry::Accumulate(
|
|
Telemetry::VIDEO_AS_CONTENT_SOURCE_IN_TREE_OR_NOT, 2);
|
|
} else {
|
|
// 3 = drawImage_NOT_IN_TREE
|
|
Telemetry::Accumulate(
|
|
Telemetry::VIDEO_AS_CONTENT_SOURCE_IN_TREE_OR_NOT, 3);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case CallerAPI::CREATE_PATTERN: {
|
|
if (isVisible) {
|
|
// 4 = createPattern_VISIBLE
|
|
Telemetry::Accumulate(Telemetry::VIDEO_AS_CONTENT_SOURCE, 4);
|
|
} else {
|
|
// 5 = createPattern_INVISIBLE
|
|
Telemetry::Accumulate(Telemetry::VIDEO_AS_CONTENT_SOURCE, 5);
|
|
|
|
if (IsInComposedDoc()) {
|
|
// 4 = createPattern_IN_TREE
|
|
Telemetry::Accumulate(
|
|
Telemetry::VIDEO_AS_CONTENT_SOURCE_IN_TREE_OR_NOT, 4);
|
|
} else {
|
|
// 5 = createPattern_NOT_IN_TREE
|
|
Telemetry::Accumulate(
|
|
Telemetry::VIDEO_AS_CONTENT_SOURCE_IN_TREE_OR_NOT, 5);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case CallerAPI::CREATE_IMAGEBITMAP: {
|
|
if (isVisible) {
|
|
// 6 = createImageBitmap_VISIBLE
|
|
Telemetry::Accumulate(Telemetry::VIDEO_AS_CONTENT_SOURCE, 6);
|
|
} else {
|
|
// 7 = createImageBitmap_INVISIBLE
|
|
Telemetry::Accumulate(Telemetry::VIDEO_AS_CONTENT_SOURCE, 7);
|
|
|
|
if (IsInComposedDoc()) {
|
|
// 6 = createImageBitmap_IN_TREE
|
|
Telemetry::Accumulate(
|
|
Telemetry::VIDEO_AS_CONTENT_SOURCE_IN_TREE_OR_NOT, 6);
|
|
} else {
|
|
// 7 = createImageBitmap_NOT_IN_TREE
|
|
Telemetry::Accumulate(
|
|
Telemetry::VIDEO_AS_CONTENT_SOURCE_IN_TREE_OR_NOT, 7);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case CallerAPI::CAPTURE_STREAM: {
|
|
if (isVisible) {
|
|
// 8 = captureStream_VISIBLE
|
|
Telemetry::Accumulate(Telemetry::VIDEO_AS_CONTENT_SOURCE, 8);
|
|
} else {
|
|
// 9 = captureStream_INVISIBLE
|
|
Telemetry::Accumulate(Telemetry::VIDEO_AS_CONTENT_SOURCE, 9);
|
|
|
|
if (IsInComposedDoc()) {
|
|
// 8 = captureStream_IN_TREE
|
|
Telemetry::Accumulate(
|
|
Telemetry::VIDEO_AS_CONTENT_SOURCE_IN_TREE_OR_NOT, 8);
|
|
} else {
|
|
// 9 = captureStream_NOT_IN_TREE
|
|
Telemetry::Accumulate(
|
|
Telemetry::VIDEO_AS_CONTENT_SOURCE_IN_TREE_OR_NOT, 9);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
LOG(LogLevel::Debug,
|
|
("%p Log VIDEO_AS_CONTENT_SOURCE: visibility = %u, API: '%d' and 'All'",
|
|
this, isVisible, static_cast<int>(aAPI)));
|
|
|
|
if (!isVisible) {
|
|
LOG(LogLevel::Debug,
|
|
("%p Log VIDEO_AS_CONTENT_SOURCE_IN_TREE_OR_NOT: inTree = %u, API: "
|
|
"'%d' and 'All'",
|
|
this, IsInComposedDoc(), static_cast<int>(aAPI)));
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::UpdateCustomPolicyAfterPlayed() {
|
|
if (mAudioChannelWrapper) {
|
|
mAudioChannelWrapper->NotifyPlayStateChanged();
|
|
}
|
|
}
|
|
|
|
AbstractThread* HTMLMediaElement::AbstractMainThread() const {
|
|
MOZ_ASSERT(mAbstractMainThread);
|
|
|
|
return mAbstractMainThread;
|
|
}
|
|
|
|
nsTArray<RefPtr<PlayPromise>> HTMLMediaElement::TakePendingPlayPromises() {
|
|
return std::move(mPendingPlayPromises);
|
|
}
|
|
|
|
void HTMLMediaElement::NotifyAboutPlaying() {
|
|
// Stick to the DispatchAsyncEvent() call path for now because we want to
|
|
// trigger some telemetry-related codes in the DispatchAsyncEvent() method.
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("playing"));
|
|
}
|
|
|
|
already_AddRefed<PlayPromise> HTMLMediaElement::CreatePlayPromise(
|
|
ErrorResult& aRv) const {
|
|
nsPIDOMWindowInner* win = OwnerDoc()->GetInnerWindow();
|
|
|
|
if (!win) {
|
|
aRv.Throw(NS_ERROR_UNEXPECTED);
|
|
return nullptr;
|
|
}
|
|
|
|
RefPtr<PlayPromise> promise = PlayPromise::Create(win->AsGlobal(), aRv);
|
|
LOG(LogLevel::Debug, ("%p created PlayPromise %p", this, promise.get()));
|
|
|
|
return promise.forget();
|
|
}
|
|
|
|
already_AddRefed<Promise> HTMLMediaElement::CreateDOMPromise(
|
|
ErrorResult& aRv) const {
|
|
nsPIDOMWindowInner* win = OwnerDoc()->GetInnerWindow();
|
|
|
|
if (!win) {
|
|
aRv.Throw(NS_ERROR_UNEXPECTED);
|
|
return nullptr;
|
|
}
|
|
|
|
return Promise::Create(win->AsGlobal(), aRv);
|
|
}
|
|
|
|
void HTMLMediaElement::AsyncResolvePendingPlayPromises() {
|
|
if (mShuttingDown) {
|
|
return;
|
|
}
|
|
|
|
nsCOMPtr<nsIRunnable> event = new nsResolveOrRejectPendingPlayPromisesRunner(
|
|
this, TakePendingPlayPromises());
|
|
|
|
mMainThreadEventTarget->Dispatch(event.forget());
|
|
}
|
|
|
|
void HTMLMediaElement::AsyncRejectPendingPlayPromises(nsresult aError) {
|
|
if (!mPaused) {
|
|
mPaused = true;
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("pause"));
|
|
}
|
|
|
|
if (mShuttingDown) {
|
|
return;
|
|
}
|
|
|
|
if (aError == NS_ERROR_DOM_MEDIA_NOT_ALLOWED_ERR) {
|
|
DispatchEventsWhenPlayWasNotAllowed();
|
|
}
|
|
|
|
nsCOMPtr<nsIRunnable> event = new nsResolveOrRejectPendingPlayPromisesRunner(
|
|
this, TakePendingPlayPromises(), aError);
|
|
|
|
mMainThreadEventTarget->Dispatch(event.forget());
|
|
}
|
|
|
|
void HTMLMediaElement::GetEMEInfo(nsString& aEMEInfo) {
|
|
if (!mMediaKeys) {
|
|
return;
|
|
}
|
|
|
|
nsString keySystem;
|
|
mMediaKeys->GetKeySystem(keySystem);
|
|
|
|
nsString sessionsInfo;
|
|
mMediaKeys->GetSessionsInfo(sessionsInfo);
|
|
|
|
aEMEInfo.AppendLiteral("Key System=");
|
|
aEMEInfo.Append(keySystem);
|
|
aEMEInfo.AppendLiteral(" SessionsInfo=");
|
|
aEMEInfo.Append(sessionsInfo);
|
|
}
|
|
|
|
void HTMLMediaElement::NotifyDecoderActivityChanges() const {
|
|
if (mDecoder) {
|
|
mDecoder->NotifyOwnerActivityChanged(!IsHidden(), mVisibilityState,
|
|
IsInComposedDoc());
|
|
}
|
|
}
|
|
|
|
Document* HTMLMediaElement::GetDocument() const { return OwnerDoc(); }
|
|
|
|
void HTMLMediaElement::ConstructMediaTracks(const MediaInfo* aInfo) {
|
|
if (mMediaTracksConstructed || !aInfo) {
|
|
return;
|
|
}
|
|
|
|
mMediaTracksConstructed = true;
|
|
|
|
AudioTrackList* audioList = AudioTracks();
|
|
if (audioList && aInfo->HasAudio()) {
|
|
const TrackInfo& info = aInfo->mAudio;
|
|
RefPtr<AudioTrack> track = MediaTrackList::CreateAudioTrack(
|
|
audioList->GetOwnerGlobal(), info.mId, info.mKind, info.mLabel,
|
|
info.mLanguage, info.mEnabled);
|
|
|
|
audioList->AddTrack(track);
|
|
}
|
|
|
|
VideoTrackList* videoList = VideoTracks();
|
|
if (videoList && aInfo->HasVideo()) {
|
|
const TrackInfo& info = aInfo->mVideo;
|
|
RefPtr<VideoTrack> track = MediaTrackList::CreateVideoTrack(
|
|
videoList->GetOwnerGlobal(), info.mId, info.mKind, info.mLabel,
|
|
info.mLanguage);
|
|
|
|
videoList->AddTrack(track);
|
|
track->SetEnabledInternal(info.mEnabled, MediaTrack::FIRE_NO_EVENTS);
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::RemoveMediaTracks() {
|
|
if (mAudioTrackList) {
|
|
mAudioTrackList->RemoveTracks();
|
|
}
|
|
|
|
if (mVideoTrackList) {
|
|
mVideoTrackList->RemoveTracks();
|
|
}
|
|
|
|
mMediaTracksConstructed = false;
|
|
}
|
|
|
|
class MediaElementGMPCrashHelper : public GMPCrashHelper {
|
|
public:
|
|
explicit MediaElementGMPCrashHelper(HTMLMediaElement* aElement)
|
|
: mElement(aElement) {
|
|
MOZ_ASSERT(NS_IsMainThread()); // WeakPtr isn't thread safe.
|
|
}
|
|
already_AddRefed<nsPIDOMWindowInner> GetPluginCrashedEventTarget() override {
|
|
MOZ_ASSERT(NS_IsMainThread()); // WeakPtr isn't thread safe.
|
|
if (!mElement) {
|
|
return nullptr;
|
|
}
|
|
return do_AddRef(mElement->OwnerDoc()->GetInnerWindow());
|
|
}
|
|
|
|
private:
|
|
WeakPtr<HTMLMediaElement> mElement;
|
|
};
|
|
|
|
already_AddRefed<GMPCrashHelper> HTMLMediaElement::CreateGMPCrashHelper() {
|
|
return MakeAndAddRef<MediaElementGMPCrashHelper>(this);
|
|
}
|
|
|
|
void HTMLMediaElement::MarkAsTainted() {
|
|
mHasSuspendTaint = true;
|
|
|
|
if (mDecoder) {
|
|
mDecoder->SetSuspendTaint(true);
|
|
}
|
|
}
|
|
|
|
bool HasDebuggerOrTabsPrivilege(JSContext* aCx, JSObject* aObj) {
|
|
return nsContentUtils::CallerHasPermission(aCx, nsGkAtoms::debugger) ||
|
|
nsContentUtils::CallerHasPermission(aCx, nsGkAtoms::tabs);
|
|
}
|
|
|
|
void HTMLMediaElement::AsyncResolveSeekDOMPromiseIfExists() {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
if (mSeekDOMPromise) {
|
|
RefPtr<dom::Promise> promise = mSeekDOMPromise.forget();
|
|
nsCOMPtr<nsIRunnable> r = NS_NewRunnableFunction(
|
|
"dom::HTMLMediaElement::AsyncResolveSeekDOMPromiseIfExists",
|
|
[promise]() { promise->MaybeResolveWithUndefined(); });
|
|
mAbstractMainThread->Dispatch(r.forget());
|
|
mSeekDOMPromise = nullptr;
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::AsyncRejectSeekDOMPromiseIfExists() {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
if (mSeekDOMPromise) {
|
|
RefPtr<dom::Promise> promise = mSeekDOMPromise.forget();
|
|
nsCOMPtr<nsIRunnable> r = NS_NewRunnableFunction(
|
|
"dom::HTMLMediaElement::AsyncRejectSeekDOMPromiseIfExists",
|
|
[promise]() { promise->MaybeReject(NS_ERROR_DOM_ABORT_ERR); });
|
|
mAbstractMainThread->Dispatch(r.forget());
|
|
mSeekDOMPromise = nullptr;
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::ReportCanPlayTelemetry() {
|
|
LOG(LogLevel::Debug, ("%s", __func__));
|
|
|
|
RefPtr<nsIThread> thread;
|
|
nsresult rv = NS_NewNamedThread("MediaTelemetry", getter_AddRefs(thread));
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return;
|
|
}
|
|
|
|
RefPtr<AbstractThread> abstractThread = mAbstractMainThread;
|
|
|
|
thread->Dispatch(
|
|
NS_NewRunnableFunction(
|
|
"dom::HTMLMediaElement::ReportCanPlayTelemetry",
|
|
[thread, abstractThread]() {
|
|
#if XP_WIN
|
|
// Windows Media Foundation requires MSCOM to be inited.
|
|
DebugOnly<HRESULT> hr = CoInitializeEx(0, COINIT_MULTITHREADED);
|
|
MOZ_ASSERT(hr == S_OK);
|
|
#endif
|
|
bool aac = MP4Decoder::IsSupportedType(
|
|
MediaContainerType(MEDIAMIMETYPE(AUDIO_MP4)), nullptr);
|
|
bool h264 = MP4Decoder::IsSupportedType(
|
|
MediaContainerType(MEDIAMIMETYPE(VIDEO_MP4)), nullptr);
|
|
#if XP_WIN
|
|
CoUninitialize();
|
|
#endif
|
|
abstractThread->Dispatch(NS_NewRunnableFunction(
|
|
"dom::HTMLMediaElement::ReportCanPlayTelemetry",
|
|
[thread, aac, h264]() {
|
|
LOG(LogLevel::Debug,
|
|
("MediaTelemetry aac=%d h264=%d", aac, h264));
|
|
Telemetry::Accumulate(
|
|
Telemetry::HistogramID::VIDEO_CAN_CREATE_AAC_DECODER,
|
|
aac);
|
|
Telemetry::Accumulate(
|
|
Telemetry::HistogramID::VIDEO_CAN_CREATE_H264_DECODER,
|
|
h264);
|
|
thread->AsyncShutdown();
|
|
}));
|
|
}),
|
|
NS_DISPATCH_NORMAL);
|
|
}
|
|
|
|
already_AddRefed<Promise> HTMLMediaElement::SetSinkId(const nsAString& aSinkId,
|
|
ErrorResult& aRv) {
|
|
nsCOMPtr<nsPIDOMWindowInner> win = OwnerDoc()->GetInnerWindow();
|
|
if (!win) {
|
|
aRv.Throw(NS_ERROR_UNEXPECTED);
|
|
return nullptr;
|
|
}
|
|
|
|
RefPtr<Promise> promise = Promise::Create(win->AsGlobal(), aRv);
|
|
if (aRv.Failed()) {
|
|
return nullptr;
|
|
}
|
|
|
|
if (mSink.first().Equals(aSinkId)) {
|
|
promise->MaybeResolveWithUndefined();
|
|
return promise.forget();
|
|
}
|
|
|
|
nsString sinkId(aSinkId);
|
|
MediaManager::Get()
|
|
->GetSinkDevice(win, sinkId)
|
|
->Then(
|
|
mAbstractMainThread, __func__,
|
|
[self = RefPtr<HTMLMediaElement>(this)](
|
|
RefPtr<AudioDeviceInfo>&& aInfo) {
|
|
// Sink found switch output device.
|
|
MOZ_ASSERT(aInfo);
|
|
if (self->mDecoder) {
|
|
RefPtr<SinkInfoPromise> p = self->mDecoder->SetSink(aInfo)->Then(
|
|
self->mAbstractMainThread, __func__,
|
|
[aInfo](const GenericPromise::ResolveOrRejectValue& aValue) {
|
|
if (aValue.IsResolve()) {
|
|
return SinkInfoPromise::CreateAndResolve(aInfo, __func__);
|
|
}
|
|
return SinkInfoPromise::CreateAndReject(
|
|
aValue.RejectValue(), __func__);
|
|
});
|
|
return p;
|
|
}
|
|
if (self->GetSrcMediaStream()) {
|
|
// Set Sink Id through MSG is not supported yet.
|
|
return SinkInfoPromise::CreateAndReject(NS_ERROR_ABORT, __func__);
|
|
}
|
|
// No media attached to the element save it for later.
|
|
return SinkInfoPromise::CreateAndResolve(aInfo, __func__);
|
|
},
|
|
[](nsresult res) {
|
|
// Promise is rejected, sink not found.
|
|
return SinkInfoPromise::CreateAndReject(res, __func__);
|
|
})
|
|
->Then(
|
|
mAbstractMainThread, __func__,
|
|
[promise, self = RefPtr<HTMLMediaElement>(this),
|
|
sinkId](const SinkInfoPromise::ResolveOrRejectValue& aValue) {
|
|
if (aValue.IsResolve()) {
|
|
self->mSink = MakePair(sinkId, aValue.ResolveValue());
|
|
promise->MaybeResolveWithUndefined();
|
|
} else {
|
|
switch (aValue.RejectValue()) {
|
|
case NS_ERROR_ABORT:
|
|
promise->MaybeReject(NS_ERROR_DOM_ABORT_ERR);
|
|
break;
|
|
case NS_ERROR_NOT_AVAILABLE: {
|
|
ErrorResult notFoundError;
|
|
notFoundError.ThrowDOMException(
|
|
NS_ERROR_DOM_NOT_FOUND_ERR,
|
|
NS_LITERAL_CSTRING("The object can not be found here."));
|
|
promise->MaybeReject(notFoundError);
|
|
break;
|
|
}
|
|
case NS_ERROR_DOM_MEDIA_NOT_ALLOWED_ERR:
|
|
promise->MaybeReject(NS_ERROR_DOM_NOT_ALLOWED_ERR);
|
|
break;
|
|
default:
|
|
MOZ_ASSERT_UNREACHABLE("Invalid error.");
|
|
}
|
|
}
|
|
});
|
|
|
|
aRv = NS_OK;
|
|
return promise.forget();
|
|
}
|
|
|
|
void HTMLMediaElement::NotifyTextTrackModeChanged() {
|
|
if (mPendingTextTrackChanged) {
|
|
return;
|
|
}
|
|
mPendingTextTrackChanged = true;
|
|
mAbstractMainThread->Dispatch(
|
|
NS_NewRunnableFunction("HTMLMediaElement::NotifyTextTrackModeChanged",
|
|
[this, self = RefPtr<HTMLMediaElement>(this)]() {
|
|
mPendingTextTrackChanged = false;
|
|
if (!mTextTrackManager) {
|
|
return;
|
|
}
|
|
GetTextTracks()->CreateAndDispatchChangeEvent();
|
|
// https://html.spec.whatwg.org/multipage/media.html#text-track-model:show-poster-flag
|
|
if (!mShowPoster) {
|
|
mTextTrackManager->TimeMarchesOn();
|
|
}
|
|
}));
|
|
}
|
|
|
|
} // namespace dom
|
|
} // namespace mozilla
|
|
|
|
#undef LOG
|
|
#undef LOG_EVENT
|