зеркало из https://github.com/mozilla/gecko-dev.git
436 строки
13 KiB
C++
436 строки
13 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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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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#include "DecoderTraits.h"
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#include "MediaContainerType.h"
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#include "MediaDecoder.h"
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#include "nsMimeTypes.h"
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#include "mozilla/Preferences.h"
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#include "mozilla/Telemetry.h"
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#include "OggDecoder.h"
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#include "OggDemuxer.h"
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#include "WebMDecoder.h"
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#include "WebMDemuxer.h"
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#ifdef MOZ_ANDROID_OMX
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#include "AndroidMediaDecoder.h"
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#include "AndroidMediaReader.h"
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#include "AndroidMediaPluginHost.h"
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#endif
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#ifdef MOZ_DIRECTSHOW
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#include "DirectShowDecoder.h"
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#include "DirectShowReader.h"
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#endif
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#ifdef MOZ_FMP4
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#include "MP4Decoder.h"
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#include "MP4Demuxer.h"
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#endif
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#include "MediaFormatReader.h"
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#include "MP3Decoder.h"
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#include "MP3Demuxer.h"
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#include "WaveDecoder.h"
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#include "WaveDemuxer.h"
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#include "ADTSDecoder.h"
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#include "ADTSDemuxer.h"
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#include "FlacDecoder.h"
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#include "FlacDemuxer.h"
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#include "nsPluginHost.h"
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#include "MediaPrefs.h"
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namespace mozilla
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{
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static bool
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IsHttpLiveStreamingType(const MediaContainerType& aType)
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{
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return // For m3u8.
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// https://tools.ietf.org/html/draft-pantos-http-live-streaming-19#section-10
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aType.Type() == MEDIAMIMETYPE("application/vnd.apple.mpegurl")
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// Some sites serve these as the informal m3u type.
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|| aType.Type() == MEDIAMIMETYPE("application/x-mpegurl")
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|| aType.Type() == MEDIAMIMETYPE("audio/x-mpegurl");
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}
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#ifdef MOZ_ANDROID_OMX
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static bool
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IsAndroidMediaType(const MediaContainerType& aType)
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{
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if (!MediaDecoder::IsAndroidMediaPluginEnabled()) {
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return false;
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}
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return aType.Type() == MEDIAMIMETYPE("audio/mpeg")
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|| aType.Type() == MEDIAMIMETYPE("audio/mp4")
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|| aType.Type() == MEDIAMIMETYPE("video/mp4")
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|| aType.Type() == MEDIAMIMETYPE("video/x-m4v");
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}
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#endif
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/* static */ bool
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DecoderTraits::IsMP4SupportedType(const MediaContainerType& aType,
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DecoderDoctorDiagnostics* aDiagnostics)
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{
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#ifdef MOZ_FMP4
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return MP4Decoder::IsSupportedType(aType, aDiagnostics);
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#else
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return false;
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#endif
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}
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static
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CanPlayStatus
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CanHandleCodecsType(const MediaContainerType& aType,
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DecoderDoctorDiagnostics* aDiagnostics)
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{
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// We should have been given a codecs string, though it may be empty.
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MOZ_ASSERT(aType.ExtendedType().HaveCodecs());
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// Container type with the MIME type, no codecs.
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const MediaContainerType mimeType(aType.Type());
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if (OggDecoder::IsSupportedType(mimeType)) {
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if (OggDecoder::IsSupportedType(aType)) {
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return CANPLAY_YES;
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}
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// We can only reach this position if a particular codec was requested,
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// ogg is supported and working: the codec must be invalid.
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return CANPLAY_NO;
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}
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if (WaveDecoder::IsSupportedType(MediaContainerType(mimeType))) {
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if (WaveDecoder::IsSupportedType(aType)) {
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return CANPLAY_YES;
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}
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// We can only reach this position if a particular codec was requested,
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// ogg is supported and working: the codec must be invalid.
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return CANPLAY_NO;
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}
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#if !defined(MOZ_OMX_WEBM_DECODER)
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if (WebMDecoder::IsSupportedType(mimeType)) {
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if (WebMDecoder::IsSupportedType(aType)) {
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return CANPLAY_YES;
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}
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// We can only reach this position if a particular codec was requested,
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// webm is supported and working: the codec must be invalid.
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return CANPLAY_NO;
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}
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#endif
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#ifdef MOZ_FMP4
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if (MP4Decoder::IsSupportedType(mimeType,
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/* DecoderDoctorDiagnostics* */ nullptr)) {
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if (MP4Decoder::IsSupportedType(aType, aDiagnostics)) {
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return CANPLAY_YES;
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}
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// We can only reach this position if a particular codec was requested,
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// fmp4 is supported and working: the codec must be invalid.
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return CANPLAY_NO;
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}
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#endif
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if (MP3Decoder::IsSupportedType(aType)) {
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return CANPLAY_YES;
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}
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if (ADTSDecoder::IsSupportedType(aType)) {
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return CANPLAY_YES;
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}
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if (FlacDecoder::IsSupportedType(aType)) {
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return CANPLAY_YES;
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}
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MediaCodecs supportedCodecs;
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#ifdef MOZ_DIRECTSHOW
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DirectShowDecoder::GetSupportedCodecs(aType, &supportedCodecs);
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#endif
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#ifdef MOZ_ANDROID_OMX
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if (MediaDecoder::IsAndroidMediaPluginEnabled()) {
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EnsureAndroidMediaPluginHost()->FindDecoder(aType, &supportedCodecs);
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}
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#endif
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if (supportedCodecs.IsEmpty()) {
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return CANPLAY_MAYBE;
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}
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if (!supportedCodecs.ContainsAll(aType.ExtendedType().Codecs())) {
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// At least one requested codec is not supported.
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return CANPLAY_NO;
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}
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return CANPLAY_YES;
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}
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static
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CanPlayStatus
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CanHandleMediaType(const MediaContainerType& aType,
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DecoderDoctorDiagnostics* aDiagnostics)
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{
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MOZ_ASSERT(NS_IsMainThread());
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if (IsHttpLiveStreamingType(aType)) {
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Telemetry::Accumulate(Telemetry::MEDIA_HLS_CANPLAY_REQUESTED, true);
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}
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if (aType.ExtendedType().HaveCodecs()) {
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CanPlayStatus result = CanHandleCodecsType(aType, aDiagnostics);
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if (result == CANPLAY_NO || result == CANPLAY_YES) {
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return result;
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}
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}
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// Container type with just the MIME type/subtype, no codecs.
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const MediaContainerType mimeType(aType.Type());
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if (OggDecoder::IsSupportedType(mimeType)) {
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return CANPLAY_MAYBE;
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}
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if (WaveDecoder::IsSupportedType(mimeType)) {
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return CANPLAY_MAYBE;
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}
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#ifdef MOZ_FMP4
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if (MP4Decoder::IsSupportedType(mimeType, aDiagnostics)) {
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return CANPLAY_MAYBE;
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}
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#endif
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#if !defined(MOZ_OMX_WEBM_DECODER)
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if (WebMDecoder::IsSupportedType(mimeType)) {
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return CANPLAY_MAYBE;
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}
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#endif
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if (MP3Decoder::IsSupportedType(mimeType)) {
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return CANPLAY_MAYBE;
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}
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if (ADTSDecoder::IsSupportedType(mimeType)) {
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return CANPLAY_MAYBE;
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}
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if (FlacDecoder::IsSupportedType(mimeType)) {
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return CANPLAY_MAYBE;
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}
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#ifdef MOZ_DIRECTSHOW
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if (DirectShowDecoder::GetSupportedCodecs(mimeType, nullptr)) {
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return CANPLAY_MAYBE;
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}
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#endif
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#ifdef MOZ_ANDROID_OMX
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if (MediaDecoder::IsAndroidMediaPluginEnabled() &&
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EnsureAndroidMediaPluginHost()->FindDecoder(mimeType, nullptr)) {
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return CANPLAY_MAYBE;
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}
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#endif
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return CANPLAY_NO;
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}
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/* static */
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CanPlayStatus
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DecoderTraits::CanHandleContainerType(const MediaContainerType& aContainerType,
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DecoderDoctorDiagnostics* aDiagnostics)
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{
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return CanHandleMediaType(aContainerType, aDiagnostics);
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}
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/* static */
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bool DecoderTraits::ShouldHandleMediaType(const char* aMIMEType,
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DecoderDoctorDiagnostics* aDiagnostics)
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{
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Maybe<MediaContainerType> containerType = MakeMediaContainerType(aMIMEType);
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if (!containerType) {
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return false;
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}
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if (WaveDecoder::IsSupportedType(*containerType)) {
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// We should not return true for Wave types, since there are some
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// Wave codecs actually in use in the wild that we don't support, and
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// we should allow those to be handled by plugins or helper apps.
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// Furthermore people can play Wave files on most platforms by other
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// means.
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return false;
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}
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// If an external plugin which can handle quicktime video is available
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// (and not disabled), prefer it over native playback as there several
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// codecs found in the wild that we do not handle.
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if (containerType->Type() == MEDIAMIMETYPE("video/quicktime")) {
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RefPtr<nsPluginHost> pluginHost = nsPluginHost::GetInst();
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if (pluginHost &&
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pluginHost->HavePluginForType(containerType->Type().AsString())) {
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return false;
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}
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}
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return CanHandleMediaType(*containerType, aDiagnostics) != CANPLAY_NO;
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}
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// Instantiates but does not initialize decoder.
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static
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already_AddRefed<MediaDecoder>
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InstantiateDecoder(const MediaContainerType& aType,
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MediaDecoderOwner* aOwner,
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DecoderDoctorDiagnostics* aDiagnostics)
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{
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MOZ_ASSERT(NS_IsMainThread());
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RefPtr<MediaDecoder> decoder;
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#ifdef MOZ_FMP4
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if (MP4Decoder::IsSupportedType(aType, aDiagnostics)) {
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decoder = new MP4Decoder(aOwner);
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return decoder.forget();
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}
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#endif
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if (MP3Decoder::IsSupportedType(aType)) {
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decoder = new MP3Decoder(aOwner);
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return decoder.forget();
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}
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if (ADTSDecoder::IsSupportedType(aType)) {
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decoder = new ADTSDecoder(aOwner);
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return decoder.forget();
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}
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if (OggDecoder::IsSupportedType(aType)) {
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decoder = new OggDecoder(aOwner);
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return decoder.forget();
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}
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if (WaveDecoder::IsSupportedType(aType)) {
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decoder = new WaveDecoder(aOwner);
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return decoder.forget();
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}
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if (FlacDecoder::IsSupportedType(aType)) {
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decoder = new FlacDecoder(aOwner);
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return decoder.forget();
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}
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#ifdef MOZ_ANDROID_OMX
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if (MediaDecoder::IsAndroidMediaPluginEnabled() &&
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EnsureAndroidMediaPluginHost()->FindDecoder(aType, nullptr)) {
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decoder = new AndroidMediaDecoder(aOwner, aType);
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return decoder.forget();
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}
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#endif
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if (WebMDecoder::IsSupportedType(aType)) {
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decoder = new WebMDecoder(aOwner);
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return decoder.forget();
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}
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#ifdef MOZ_DIRECTSHOW
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// Note: DirectShow should come before WMF, so that we prefer DirectShow's
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// MP3 support over WMF's.
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if (DirectShowDecoder::GetSupportedCodecs(aType, nullptr)) {
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decoder = new DirectShowDecoder(aOwner);
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return decoder.forget();
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}
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#endif
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if (IsHttpLiveStreamingType(aType)) {
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// We don't have an HLS decoder.
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Telemetry::Accumulate(Telemetry::MEDIA_HLS_DECODER_SUCCESS, false);
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}
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return nullptr;
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}
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/* static */
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already_AddRefed<MediaDecoder>
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DecoderTraits::CreateDecoder(const nsACString& aType,
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MediaDecoderOwner* aOwner,
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DecoderDoctorDiagnostics* aDiagnostics)
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{
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MOZ_ASSERT(NS_IsMainThread());
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Maybe<MediaContainerType> type = MakeMediaContainerType(aType);
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if (!type) {
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return nullptr;
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}
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return InstantiateDecoder(*type, aOwner, aDiagnostics);
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}
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/* static */
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MediaDecoderReader*
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DecoderTraits::CreateReader(const MediaContainerType& aType,
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AbstractMediaDecoder* aDecoder)
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{
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MOZ_ASSERT(NS_IsMainThread());
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MediaDecoderReader* decoderReader = nullptr;
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if (!aDecoder) {
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return decoderReader;
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}
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#ifdef MOZ_FMP4
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if (MP4Decoder::IsSupportedType(aType,
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/* DecoderDoctorDiagnostics* */ nullptr)) {
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decoderReader = new MediaFormatReader(aDecoder, new MP4Demuxer(aDecoder->GetResource()));
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} else
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#endif
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if (MP3Decoder::IsSupportedType(aType)) {
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decoderReader = new MediaFormatReader(aDecoder, new mp3::MP3Demuxer(aDecoder->GetResource()));
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} else
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if (ADTSDecoder::IsSupportedType(aType)) {
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decoderReader = new MediaFormatReader(aDecoder, new ADTSDemuxer(aDecoder->GetResource()));
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} else
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if (WaveDecoder::IsSupportedType(aType)) {
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decoderReader = new MediaFormatReader(aDecoder, new WAVDemuxer(aDecoder->GetResource()));
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} else
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if (FlacDecoder::IsSupportedType(aType)) {
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decoderReader = new MediaFormatReader(aDecoder, new FlacDemuxer(aDecoder->GetResource()));
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} else
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if (OggDecoder::IsSupportedType(aType)) {
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decoderReader = new MediaFormatReader(aDecoder, new OggDemuxer(aDecoder->GetResource()));
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} else
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#ifdef MOZ_ANDROID_OMX
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if (MediaDecoder::IsAndroidMediaPluginEnabled() &&
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EnsureAndroidMediaPluginHost()->FindDecoder(aType, nullptr)) {
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decoderReader = new AndroidMediaReader(aDecoder, aType);
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} else
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#endif
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if (WebMDecoder::IsSupportedType(aType)) {
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decoderReader =
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new MediaFormatReader(aDecoder, new WebMDemuxer(aDecoder->GetResource()));
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} else
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#ifdef MOZ_DIRECTSHOW
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if (DirectShowDecoder::GetSupportedCodecs(aType, nullptr)) {
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decoderReader = new DirectShowReader(aDecoder);
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} else
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#endif
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if (false) {} // dummy if to take care of the dangling else
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return decoderReader;
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}
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/* static */
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bool DecoderTraits::IsSupportedInVideoDocument(const nsACString& aType)
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{
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// Forbid playing media in video documents if the user has opted
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// not to, using either the legacy WMF specific pref, or the newer
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// catch-all pref.
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if (!Preferences::GetBool("media.windows-media-foundation.play-stand-alone", true) ||
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!Preferences::GetBool("media.play-stand-alone", true)) {
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return false;
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}
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Maybe<MediaContainerType> type = MakeMediaContainerType(aType);
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if (!type) {
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return false;
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}
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return
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OggDecoder::IsSupportedType(*type) ||
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WebMDecoder::IsSupportedType(*type) ||
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#ifdef MOZ_ANDROID_OMX
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(MediaDecoder::IsAndroidMediaPluginEnabled() && IsAndroidMediaType(*type)) ||
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#endif
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#ifdef MOZ_FMP4
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MP4Decoder::IsSupportedType(*type, /* DecoderDoctorDiagnostics* */ nullptr) ||
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#endif
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MP3Decoder::IsSupportedType(*type) ||
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ADTSDecoder::IsSupportedType(*type) ||
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FlacDecoder::IsSupportedType(*type) ||
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#ifdef MOZ_DIRECTSHOW
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DirectShowDecoder::GetSupportedCodecs(*type, nullptr) ||
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#endif
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false;
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}
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} // namespace mozilla
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