gecko/dom/media/webaudio/BufferDecoder.h

89 lines
3.0 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 "mozilla/Attributes.h"
#include "mozilla/ReentrantMonitor.h"
#include "mozilla/TaskQueue.h"
#include "AbstractMediaDecoder.h"
namespace mozilla {
/**
* This class provides a decoder object which decodes a media file that lives in
* a memory buffer.
*/
class BufferDecoder final : 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.
explicit BufferDecoder(MediaResource* aResource);
NS_DECL_THREADSAFE_ISUPPORTS
// This has to be called before decoding begins
void BeginDecoding(TaskQueue* aTaskQueueIdentity);
virtual ReentrantMonitor& GetReentrantMonitor() final override;
virtual bool IsShutdown() const final override;
virtual bool OnStateMachineTaskQueue() const final override;
virtual bool OnDecodeTaskQueue() const final override;
virtual MediaResource* GetResource() const final override;
virtual void NotifyBytesConsumed(int64_t aBytes, int64_t aOffset) final override;
virtual void NotifyDecodedFrames(uint32_t aParsed, uint32_t aDecoded,
uint32_t aDropped) final override;
virtual void SetMediaSeekable(bool aMediaSeekable) final override;
virtual VideoFrameContainer* GetVideoFrameContainer() final override;
virtual layers::ImageContainer* GetImageContainer() final override;
virtual bool IsTransportSeekable() final override;
virtual bool IsMediaSeekable() final override;
virtual void MetadataLoaded(nsAutoPtr<MediaInfo> aInfo,
nsAutoPtr<MetadataTags> aTags,
MediaDecoderEventVisibility aEventVisibility) final override;
virtual void QueueMetadata(const media::TimeUnit& aTime, nsAutoPtr<MediaInfo> aInfo, nsAutoPtr<MetadataTags> aTags) final override;
virtual void FirstFrameLoaded(nsAutoPtr<MediaInfo> aInfo,
MediaDecoderEventVisibility aEventVisibility) final override;
virtual void RemoveMediaTracks() final override;
virtual void OnReadMetadataCompleted() final override;
virtual MediaDecoderOwner* GetOwner() final override;
virtual void NotifyWaitingForResourcesStatusChanged() final override;
virtual void NotifyDataArrived(uint32_t, int64_t, bool) final override {};
private:
virtual ~BufferDecoder();
// 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;
nsRefPtr<TaskQueue> mTaskQueueIdentity;
nsRefPtr<MediaResource> mResource;
};
} // namespace mozilla
#endif /* BUFFER_DECODER_H_ */