зеркало из https://github.com/mozilla/gecko-dev.git
88 строки
3.0 KiB
C++
88 строки
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 BUFFER_DECODER_H_
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#define BUFFER_DECODER_H_
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#include "AbstractMediaDecoder.h"
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#include "MediaTaskQueue.h"
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#include "mozilla/Attributes.h"
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#include "mozilla/ReentrantMonitor.h"
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namespace mozilla {
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/**
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* This class provides a decoder object which decodes a media file that lives in
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* a memory buffer.
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*/
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class BufferDecoder final : public AbstractMediaDecoder
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{
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public:
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// This class holds a weak pointer to MediaResource. It's the responsibility
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// of the caller to manage the memory of the MediaResource object.
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explicit BufferDecoder(MediaResource* aResource);
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NS_DECL_THREADSAFE_ISUPPORTS
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// This has to be called before decoding begins
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void BeginDecoding(MediaTaskQueue* aTaskQueueIdentity);
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virtual ReentrantMonitor& GetReentrantMonitor() final override;
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virtual bool IsShutdown() const final override;
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virtual bool OnStateMachineTaskQueue() const final override;
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virtual bool OnDecodeTaskQueue() const final override;
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virtual MediaResource* GetResource() const final override;
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virtual void NotifyBytesConsumed(int64_t aBytes, int64_t aOffset) final override;
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virtual void NotifyDecodedFrames(uint32_t aParsed, uint32_t aDecoded,
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uint32_t aDropped) final override;
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virtual void SetMediaSeekable(bool aMediaSeekable) final override;
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virtual VideoFrameContainer* GetVideoFrameContainer() final override;
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virtual layers::ImageContainer* GetImageContainer() final override;
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virtual bool IsTransportSeekable() final override;
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virtual bool IsMediaSeekable() final override;
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virtual void MetadataLoaded(nsAutoPtr<MediaInfo> aInfo,
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nsAutoPtr<MetadataTags> aTags,
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MediaDecoderEventVisibility aEventVisibility) final override;
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virtual void QueueMetadata(int64_t aTime, nsAutoPtr<MediaInfo> aInfo, nsAutoPtr<MetadataTags> aTags) final override;
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virtual void FirstFrameLoaded(nsAutoPtr<MediaInfo> aInfo,
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MediaDecoderEventVisibility aEventVisibility) final override;
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virtual void RemoveMediaTracks() final override;
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virtual void OnReadMetadataCompleted() final override;
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virtual MediaDecoderOwner* GetOwner() final override;
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virtual void NotifyWaitingForResourcesStatusChanged() final override;
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virtual void NotifyDataArrived(uint32_t, int64_t, bool) final override {};
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private:
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virtual ~BufferDecoder();
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// This monitor object is not really used to synchronize access to anything.
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// It's just there in order for us to be able to override
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// GetReentrantMonitor correctly.
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ReentrantMonitor mReentrantMonitor;
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nsRefPtr<MediaTaskQueue> mTaskQueueIdentity;
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nsRefPtr<MediaResource> mResource;
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};
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} // namespace mozilla
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#endif /* BUFFER_DECODER_H_ */
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