gecko/content/media/BufferDecoder.h

89 lines
2.9 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 BUFFER_DECODER_H_
#define BUFFER_DECODER_H_
#include "AbstractMediaDecoder.h"
#include "mozilla/Attributes.h"
#include "mozilla/ReentrantMonitor.h"
namespace mozilla {
/**
* This class provides a decoder object which decodes a media file that lives in
* a memory buffer.
*/
class BufferDecoder : public AbstractMediaDecoder
{
public:
// This class holds a weak pointer to MediaResouce. It's the responsibility
// of the caller to manage the memory of the MediaResource object.
explicit BufferDecoder(MediaResource* aResource);
virtual ~BufferDecoder();
NS_DECL_THREADSAFE_ISUPPORTS
// This has to be called before decoding begins
void BeginDecoding(nsIThread* aDecodeThread);
ReentrantMonitor& GetReentrantMonitor() MOZ_OVERRIDE;
bool IsShutdown() const MOZ_FINAL MOZ_OVERRIDE;
bool OnStateMachineThread() const MOZ_OVERRIDE;
bool OnDecodeThread() const MOZ_OVERRIDE;
MediaResource* GetResource() const MOZ_FINAL MOZ_OVERRIDE;
void NotifyBytesConsumed(int64_t aBytes, int64_t aOffset) MOZ_FINAL MOZ_OVERRIDE;
void NotifyDecodedFrames(uint32_t aParsed, uint32_t aDecoded) MOZ_FINAL MOZ_OVERRIDE;
int64_t GetEndMediaTime() const MOZ_FINAL MOZ_OVERRIDE;
int64_t GetMediaDuration() MOZ_FINAL MOZ_OVERRIDE;
void SetMediaDuration(int64_t aDuration) MOZ_OVERRIDE;
void UpdateEstimatedMediaDuration(int64_t aDuration) MOZ_OVERRIDE;
void SetMediaSeekable(bool aMediaSeekable) MOZ_OVERRIDE;
void SetTransportSeekable(bool aTransportSeekable) MOZ_OVERRIDE;
VideoFrameContainer* GetVideoFrameContainer() MOZ_FINAL MOZ_OVERRIDE;
layers::ImageContainer* GetImageContainer() MOZ_OVERRIDE;
bool IsTransportSeekable() MOZ_FINAL MOZ_OVERRIDE;
bool IsMediaSeekable() MOZ_FINAL MOZ_OVERRIDE;
void MetadataLoaded(int aChannels, int aRate, bool aHasAudio, bool aHasVideo, MetadataTags* aTags) MOZ_FINAL MOZ_OVERRIDE;
void QueueMetadata(int64_t aTime, int aChannels, int aRate, bool aHasAudio, bool aHasVideo, MetadataTags* aTags) MOZ_FINAL MOZ_OVERRIDE;
void SetMediaEndTime(int64_t aTime) MOZ_FINAL MOZ_OVERRIDE;
void UpdatePlaybackPosition(int64_t aTime) MOZ_FINAL MOZ_OVERRIDE;
void OnReadMetadataCompleted() MOZ_FINAL MOZ_OVERRIDE;
MediaDecoderOwner* GetOwner() MOZ_FINAL MOZ_OVERRIDE;
private:
// This monitor object is not really used to synchronize access to anything.
// It's just there in order for us to be able to override
// GetReentrantMonitor correctly.
ReentrantMonitor mReentrantMonitor;
nsCOMPtr<nsIThread> mDecodeThread;
nsRefPtr<MediaResource> mResource;
};
} // namespace mozilla
#endif /* BUFFER_DECODER_H_ */