mirror of
https://github.com/ZLMediaKit/ZLMediaKit.git
synced 2024-10-06 20:23:43 +08:00
93 lines
2.2 KiB
C++
93 lines
2.2 KiB
C++
/*
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* Copyright (c) 2016 The ZLMediaKit project authors. All Rights Reserved.
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*
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* This file is part of ZLMediaKit(https://github.com/ZLMediaKit/ZLMediaKit).
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*
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* Use of this source code is governed by MIT license that can be found in the
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* LICENSE file in the root of the source tree. All contributing project authors
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* may be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef FFMpegDecoder_H_
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#define FFMpegDecoder_H_
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#include <string>
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#include <memory>
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#include <stdexcept>
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#include "Extension/Frame.h"
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#include "Extension/Track.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "libavcodec/avcodec.h"
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#include "libswresample/swresample.h"
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#ifdef __cplusplus
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}
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#endif
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using namespace std;
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using namespace mediakit;
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class FFmpegFrame {
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public:
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using Ptr = std::shared_ptr<FFmpegFrame>;
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FFmpegFrame(std::shared_ptr<AVFrame> frame = nullptr);
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~FFmpegFrame();
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AVFrame *get() const;
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void fillPicture(AVPixelFormat target_format, int target_width, int target_height);
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private:
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char *_data = nullptr;
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std::shared_ptr<AVFrame> _frame;
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};
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class FFmpegSwr{
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public:
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using Ptr = std::shared_ptr<FFmpegSwr>;
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FFmpegSwr(AVSampleFormat output, int channel, int channel_layout, int samplerate);
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~FFmpegSwr();
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FFmpegFrame::Ptr inputFrame(const FFmpegFrame::Ptr &frame);
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private:
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int _target_channels;
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int _target_channel_layout;
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int _target_samplerate;
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AVSampleFormat _target_format;
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SwrContext *_ctx = nullptr;
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ResourcePool<FFmpegFrame> _frame_pool;
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};
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class FFmpegDecoder : public FrameWriterInterface {
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public:
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using Ptr = std::shared_ptr<FFmpegDecoder>;
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using onDec = function<void(const FFmpegFrame::Ptr &)>;
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FFmpegDecoder(const Track::Ptr &track);
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~FFmpegDecoder() {}
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void inputFrame(const Frame::Ptr &frame) override;
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void inputFrame(const char *data, size_t size, uint32_t dts, uint32_t pts);
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void setOnDecode(onDec cb);
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void flush();
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const AVCodecContext *getContext() const;
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private:
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void onDecode(const FFmpegFrame::Ptr &frame);
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private:
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Ticker _ticker;
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onDec _cb;
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FFmpegSwr::Ptr _swr;
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ResourcePool<FFmpegFrame> _frame_pool;
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std::shared_ptr<AVCodecContext> _context;
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};
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#endif /* FFMpegDecoder_H_ */
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