gecko/dom/media/mediasource/SourceBufferDecoder.h

140 lines
4.6 KiB
C++

/* -*- 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_SOURCEBUFFERDECODER_H_
#define MOZILLA_SOURCEBUFFERDECODER_H_
#include "AbstractMediaDecoder.h"
#include "MediaDecoderReader.h"
#include "SourceBufferResource.h"
#include "mozilla/Attributes.h"
#ifdef MOZ_EME
#include "mozilla/CDMProxy.h"
#endif
#include "mozilla/ReentrantMonitor.h"
namespace mozilla {
class MediaResource;
class MediaDecoderReader;
namespace dom {
class TimeRanges;
} // namespace dom
class SourceBufferDecoder : public AbstractMediaDecoder
{
public:
// This class holds a weak pointer to MediaResource. It's the responsibility
// of the caller to manage the memory of the MediaResource object.
SourceBufferDecoder(MediaResource* aResource, AbstractMediaDecoder* aParentDecoder);
NS_DECL_THREADSAFE_ISUPPORTS
virtual bool IsMediaSeekable() MOZ_FINAL MOZ_OVERRIDE;
virtual bool IsShutdown() const MOZ_FINAL MOZ_OVERRIDE;
virtual bool IsTransportSeekable() MOZ_FINAL MOZ_OVERRIDE;
virtual bool OnDecodeThread() const MOZ_FINAL MOZ_OVERRIDE;
virtual bool OnStateMachineThread() const MOZ_FINAL MOZ_OVERRIDE;
virtual int64_t GetMediaDuration() MOZ_FINAL MOZ_OVERRIDE;
virtual layers::ImageContainer* GetImageContainer() MOZ_FINAL MOZ_OVERRIDE;
virtual MediaDecoderOwner* GetOwner() MOZ_FINAL MOZ_OVERRIDE;
virtual SourceBufferResource* GetResource() const MOZ_FINAL MOZ_OVERRIDE;
virtual ReentrantMonitor& GetReentrantMonitor() MOZ_FINAL MOZ_OVERRIDE;
virtual VideoFrameContainer* GetVideoFrameContainer() MOZ_FINAL MOZ_OVERRIDE;
virtual void MetadataLoaded(MediaInfo* aInfo, MetadataTags* aTags) MOZ_FINAL MOZ_OVERRIDE;
virtual void NotifyBytesConsumed(int64_t aBytes, int64_t aOffset) MOZ_FINAL MOZ_OVERRIDE;
virtual void NotifyDataArrived(const char* aBuffer, uint32_t aLength, int64_t aOffset) MOZ_FINAL MOZ_OVERRIDE;
virtual void NotifyDecodedFrames(uint32_t aParsed, uint32_t aDecoded) MOZ_FINAL MOZ_OVERRIDE;
virtual void NotifyWaitingForResourcesStatusChanged() MOZ_FINAL MOZ_OVERRIDE;
virtual void OnReadMetadataCompleted() MOZ_FINAL MOZ_OVERRIDE;
virtual void QueueMetadata(int64_t aTime, MediaInfo* aInfo, MetadataTags* aTags) MOZ_FINAL MOZ_OVERRIDE;
virtual void RemoveMediaTracks() MOZ_FINAL MOZ_OVERRIDE;
virtual void SetMediaDuration(int64_t aDuration) MOZ_FINAL MOZ_OVERRIDE;
virtual void SetMediaEndTime(int64_t aTime) MOZ_FINAL MOZ_OVERRIDE;
virtual void SetMediaSeekable(bool aMediaSeekable) MOZ_FINAL MOZ_OVERRIDE;
virtual void UpdateEstimatedMediaDuration(int64_t aDuration) MOZ_FINAL MOZ_OVERRIDE;
virtual void UpdatePlaybackPosition(int64_t aTime) MOZ_FINAL MOZ_OVERRIDE;
// SourceBufferResource specific interface below.
// Warning: this mirrors GetBuffered in MediaDecoder, but this class's base is
// AbstractMediaDecoder, which does not supply this interface.
nsresult GetBuffered(dom::TimeRanges* aBuffered);
void SetReader(MediaDecoderReader* aReader)
{
MOZ_ASSERT(!mReader);
mReader = aReader;
}
MediaDecoderReader* GetReader()
{
return mReader;
}
void SetTaskQueue(MediaTaskQueue* aTaskQueue)
{
MOZ_ASSERT((!mTaskQueue && aTaskQueue) || (mTaskQueue && !aTaskQueue));
mTaskQueue = aTaskQueue;
}
void BreakCycles()
{
if (mReader) {
mReader->BreakCycles();
mReader = nullptr;
}
mTaskQueue = nullptr;
#ifdef MOZ_EME
mCDMProxy = nullptr;
#endif
}
#ifdef MOZ_EME
virtual nsresult SetCDMProxy(CDMProxy* aProxy)
{
MOZ_ASSERT(NS_IsMainThread());
ReentrantMonitorAutoEnter mon(GetReentrantMonitor());
mCDMProxy = aProxy;
return NS_OK;
}
virtual CDMProxy* GetCDMProxy() MOZ_OVERRIDE
{
MOZ_ASSERT(OnDecodeThread() || NS_IsMainThread());
ReentrantMonitorAutoEnter mon(GetReentrantMonitor());
return mCDMProxy;
}
#endif
// Given a time convert it into an approximate byte offset from the
// cached data. Returns -1 if no such value is computable.
int64_t ConvertToByteOffset(double aTime);
private:
virtual ~SourceBufferDecoder();
// Our TrackBuffer's task queue, this is only non-null during initialization.
RefPtr<MediaTaskQueue> mTaskQueue;
nsRefPtr<MediaResource> mResource;
AbstractMediaDecoder* mParentDecoder;
nsRefPtr<MediaDecoderReader> mReader;
int64_t mMediaDuration;
#ifdef MOZ_EME
nsRefPtr<CDMProxy> mCDMProxy;
#endif
};
} // namespace mozilla
#endif /* MOZILLA_SOURCEBUFFERDECODER_H_ */