toys/qdataanalyzer/source/Decode/FfmpegDecodeOld.h

#pragma once
#include <QThread>
#include "ConstBuffer.h"

extern "C" {
#include "libavcodec/avcodec.h"
#include "libswscale/swscale.h"
#include "libavformat/avformat.h"
#include "libavutil/imgutils.h"
#include "libavutil/opt.h"
#include "libavutil/mathematics.h"
#include "libavutil/samplefmt.h"
#include "libavutil/pixfmt.h"
}

class FfmpegDecodeOld : public QThread
{
    Q_OBJECT
public:
    FfmpegDecodeOld(QObject* parent = Q_NULLPTR);
    ~FfmpegDecodeOld();
    void            init();
    static IBuffer* getConstBuffer()
    {
        return m_pConstBuffer;
    }

private:
    bool                m_bNeedWork;
    static ConstBuffer* m_pConstBuffer;

    size_t             m_sBufferSize;
    uint8_t*           m_pBuffer;
    AVIOContext*       m_pAVIOContext;
    AVInputFormat*     m_pAVInputFormat;
    AVFormatContext*   m_pAVFormatContext;
    int                m_iId;
    AVPacket*          m_pAVPacket; // 压缩数据包
    const AVCodec*     m_pAVCodec;  // 解码器
    AVCodecContext*    m_pAVCodecContext;
    AVCodecParameters* m_pAVCodecParameters;
    AVFrame*           m_pAVFrameSrc;
    AVFrame*           m_pAVFrameDes;
    SwsContext*        m_pSwsContext;

private:
    void       run() override;
    static int read_data(void* opaque, uint8_t* buf, int buf_size);
};