gecko-dev/dom/media/mediasource/MediaSourceDecoder.h

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2.6 KiB
C
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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef MOZILLA_MEDIASOURCEDECODER_H_
#define MOZILLA_MEDIASOURCEDECODER_H_
#include "mozilla/Attributes.h"
#include "nsCOMPtr.h"
#include "nsError.h"
#include "MediaDecoder.h"
class nsIStreamListener;
namespace mozilla {
class MediaResource;
class MediaDecoderStateMachine;
class MediaSourceReader;
class SourceBufferDecoder;
class TrackBuffer;
namespace dom {
class HTMLMediaElement;
class MediaSource;
} // namespace dom
class MediaSourceDecoder : public MediaDecoder
{
public:
explicit MediaSourceDecoder(dom::HTMLMediaElement* aElement);
virtual MediaDecoder* Clone() MOZ_OVERRIDE;
virtual MediaDecoderStateMachine* CreateStateMachine() MOZ_OVERRIDE;
virtual nsresult Load(nsIStreamListener**, MediaDecoder*) MOZ_OVERRIDE;
virtual nsresult GetSeekable(dom::TimeRanges* aSeekable) MOZ_OVERRIDE;
virtual void Shutdown() MOZ_OVERRIDE;
static already_AddRefed<MediaResource> CreateResource(nsIPrincipal* aPrincipal = nullptr);
void AttachMediaSource(dom::MediaSource* aMediaSource);
void DetachMediaSource();
already_AddRefed<SourceBufferDecoder> CreateSubDecoder(const nsACString& aType);
void AddTrackBuffer(TrackBuffer* aTrackBuffer);
void RemoveTrackBuffer(TrackBuffer* aTrackBuffer);
void OnTrackBufferConfigured(TrackBuffer* aTrackBuffer, const MediaInfo& aInfo);
void Ended();
bool IsExpectingMoreData() MOZ_OVERRIDE;
void SetDecodedDuration(int64_t aDuration);
void SetMediaSourceDuration(double aDuration);
double GetMediaSourceDuration();
void DurationChanged(double aOldDuration, double aNewDuration);
// Called whenever a TrackBuffer has new data appended or a new decoder
// initializes. Safe to call from any thread.
void NotifyTimeRangesChanged();
// Indicates the point in time at which the reader should consider
// registered TrackBuffers essential for initialization.
void PrepareReaderInitialization();
#ifdef MOZ_EME
virtual nsresult SetCDMProxy(CDMProxy* aProxy) MOZ_OVERRIDE;
#endif
private:
// The owning MediaSource holds a strong reference to this decoder, and
// calls Attach/DetachMediaSource on this decoder to set and clear
// mMediaSource.
dom::MediaSource* mMediaSource;
nsRefPtr<MediaSourceReader> mReader;
// Protected by GetReentrantMonitor()
double mMediaSourceDuration;
};
} // namespace mozilla
#endif /* MOZILLA_MEDIASOURCEDECODER_H_ */