tenfourfox/dom/media/platforms/ffmpeg/FFmpegDataDecoder.h
2020-04-14 22:33:40 -07:00

75 lines
2.0 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* 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 __FFmpegDataDecoder_h__
#define __FFmpegDataDecoder_h__
#include "PlatformDecoderModule.h"
#include "FFmpegLibs.h"
#include "mozilla/StaticMutex.h"
namespace mozilla
{
template <int V>
class FFmpegDataDecoder : public MediaDataDecoder
{
};
template <>
class FFmpegDataDecoder<LIBAV_VER> : public MediaDataDecoder
{
public:
FFmpegDataDecoder(FlushableTaskQueue* aTaskQueue,
MediaDataDecoderCallback* aCallback,
AVCodecID aCodecID);
virtual ~FFmpegDataDecoder();
static bool Link();
RefPtr<InitPromise> Init() override = 0;
nsresult Input(MediaRawData* aSample) override = 0;
nsresult Flush() override;
nsresult Drain() override;
nsresult Shutdown() override;
static AVCodec* FindAVCodec(AVCodecID aCodec);
bool mHQ; // TenFourFox high quality mode (issue 599)
protected:
// Flush and Drain operation, always run
virtual void ProcessFlush();
virtual void ProcessDrain() = 0;
virtual void ProcessShutdown();
AVFrame* PrepareFrame();
nsresult InitDecoder();
RefPtr<FlushableTaskQueue> mTaskQueue;
MediaDataDecoderCallback* mCallback;
AVCodecContext* mCodecContext;
AVFrame* mFrame;
RefPtr<MediaByteBuffer> mExtraData;
AVCodecID mCodecID;
// For wait on mIsFlushing during Shutdown() process.
// Protects mReorderQueue.
Monitor mMonitor;
// Set on reader/decode thread calling Flush() to indicate that output is
// not required and so input samples on mTaskQueue need not be processed.
// Cleared on mTaskQueue in ProcessDrain().
Atomic<bool> mIsFlushing;
AVCodecParserContext* mCodecParser;
private:
static bool sFFmpegInitDone;
static StaticMutex sMonitor;
};
} // namespace mozilla
#endif // __FFmpegDataDecoder_h__