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119 lines
3.0 KiB
C++
119 lines
3.0 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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#ifndef MOZILLA_MEDIASOURCEREADER_H_
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#define MOZILLA_MEDIASOURCEREADER_H_
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#include "mozilla/Attributes.h"
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#include "mozilla/ReentrantMonitor.h"
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#include "nsCOMPtr.h"
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#include "nsError.h"
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#include "nsStringGlue.h"
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#include "nsTArray.h"
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#include "MediaDecoderReader.h"
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namespace mozilla {
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class MediaSourceDecoder;
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class SubBufferDecoder;
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namespace dom {
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class MediaSource;
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} // namespace dom
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class MediaSourceReader : public MediaDecoderReader
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{
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public:
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MediaSourceReader(MediaSourceDecoder* aDecoder, dom::MediaSource* aSource);
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nsresult Init(MediaDecoderReader* aCloneDonor) MOZ_OVERRIDE
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{
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// Although we technically don't implement anything here, we return NS_OK
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// so that when the state machine initializes and calls this function
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// we don't return an error code back to the media element.
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return NS_OK;
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}
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bool IsWaitingMediaResources() MOZ_OVERRIDE;
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void RequestAudioData() MOZ_OVERRIDE;
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void OnAudioDecoded(AudioData* aSample);
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void OnAudioEOS();
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void RequestVideoData(bool aSkipToNextKeyframe, int64_t aTimeThreshold) MOZ_OVERRIDE;
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void OnVideoDecoded(VideoData* aSample);
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void OnVideoEOS();
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void OnDecodeError();
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bool HasVideo() MOZ_OVERRIDE
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{
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return mInfo.HasVideo();
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}
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bool HasAudio() MOZ_OVERRIDE
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{
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return mInfo.HasAudio();
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}
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bool IsMediaSeekable() { return true; }
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nsresult ReadMetadata(MediaInfo* aInfo, MetadataTags** aTags) MOZ_OVERRIDE;
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nsresult Seek(int64_t aTime, int64_t aStartTime, int64_t aEndTime,
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int64_t aCurrentTime) MOZ_OVERRIDE;
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already_AddRefed<SubBufferDecoder> CreateSubDecoder(const nsACString& aType,
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MediaSourceDecoder* aParentDecoder);
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void Shutdown();
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virtual void BreakCycles();
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void InitializePendingDecoders();
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bool IsShutdown()
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{
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ReentrantMonitorAutoEnter decoderMon(mDecoder->GetReentrantMonitor());
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return mDecoder->IsShutdown();
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}
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// Return true if any of the active decoders contain data for the given time
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bool DecodersContainTime(double aTime);
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private:
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enum SwitchType {
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SWITCH_OPTIONAL,
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SWITCH_FORCED
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};
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bool SwitchVideoReaders(SwitchType aType);
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MediaDecoderReader* GetAudioReader();
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MediaDecoderReader* GetVideoReader();
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void SetMediaSourceDuration(double aDuration) ;
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// These are read and written on the decode task queue threads.
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int64_t mTimeThreshold;
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bool mDropVideoBeforeThreshold;
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nsTArray<nsRefPtr<SubBufferDecoder>> mPendingDecoders;
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nsTArray<nsRefPtr<SubBufferDecoder>> mDecoders;
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int32_t mActiveVideoDecoder;
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int32_t mActiveAudioDecoder;
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dom::MediaSource* mMediaSource;
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};
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} // namespace mozilla
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#endif /* MOZILLA_MEDIASOURCEREADER_H_ */
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