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72 lines
2 KiB
C++
72 lines
2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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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 __FFmpegDataDecoder_h__
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#define __FFmpegDataDecoder_h__
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#include "PlatformDecoderModule.h"
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#include "FFmpegLibWrapper.h"
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#include "mozilla/StaticMutex.h"
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#include "FFmpegLibs.h"
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namespace mozilla
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{
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template <int V>
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class FFmpegDataDecoder : public MediaDataDecoder
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{
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};
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template <>
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class FFmpegDataDecoder<LIBAV_VER> : public MediaDataDecoder
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{
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public:
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FFmpegDataDecoder(FFmpegLibWrapper* aLib, TaskQueue* aTaskQueue,
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MediaDataDecoderCallback* aCallback,
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AVCodecID aCodecID);
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virtual ~FFmpegDataDecoder();
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static bool Link();
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RefPtr<InitPromise> Init() override = 0;
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void Input(MediaRawData* aSample) override;
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void Flush() override;
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void Drain() override;
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void Shutdown() override;
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static AVCodec* FindAVCodec(FFmpegLibWrapper* aLib, AVCodecID aCodec);
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protected:
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// Flush and Drain operation, always run
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virtual void ProcessFlush();
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virtual void ProcessShutdown();
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virtual void InitCodecContext() {}
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AVFrame* PrepareFrame();
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nsresult InitDecoder();
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FFmpegLibWrapper* mLib;
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MediaDataDecoderCallback* mCallback;
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AVCodecContext* mCodecContext;
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AVFrame* mFrame;
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RefPtr<MediaByteBuffer> mExtraData;
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AVCodecID mCodecID;
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private:
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void ProcessDecode(MediaRawData* aSample);
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virtual MediaResult DoDecode(MediaRawData* aSample) = 0;
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virtual void ProcessDrain() = 0;
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static StaticMutex sMonitor;
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const RefPtr<TaskQueue> mTaskQueue;
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// Set/cleared on reader thread calling Flush() to indicate that output is
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// not required and so input samples on mTaskQueue need not be processed.
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Atomic<bool> mIsFlushing;
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};
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} // namespace mozilla
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#endif // __FFmpegDataDecoder_h__
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