Hu Chunming / vpt_ascend

  #include<string>
  
  #include "depend_headers.h"

  #include "dvpp_headers.h"
  #include "DvppDataMemory.hpp"
  
  #include <queue>
  #include <mutex>
  #include <condition_variable>
  

  
  using namespace std;
  

  typedef void(*RECEIVER_FINISHED_CALLBACK)(const void* userPtr);
  
  const int g_pkt_size = 1024 * 1024;  // 单个AVPacket大小的最大值
  

  class DvppDecoder{
  public:
      DvppDecoder();
      ~DvppDecoder();
      bool init(FFDecConfig cfg);
      void close();
      bool start();
      void pause();
      void resume();
  
      void setDecKeyframe(bool bKeyframe);
  
      bool isRunning();
      bool isFinished();
      bool isPausing();
      bool getResolution( int &width, int &height );
  
      bool isSurport(FFDecConfig& cfg);
  
      float fps();
  
      void setName(string nm){
          m_dec_name = nm;
      }
  
      string getName(){
          return m_dec_name;
      }
  

      DeviceMemory* snapshot();

  
      void setPostDecArg(const void* postDecArg);
      void setFinishedDecArg(const void* finishedDecArg);
  
      int getCachedQueueLength();
  
  public:

      void doVdppVdecCallBack(acldvppStreamDesc *input, acldvppPicDesc *output);
      void doProcessReport();
  
  private:
      AVCodecContext* init_FFmpeg(FFDecConfig config);
      bool init_vdpp(FFDecConfig cfg, AVCodecContext* avctx);
      void release_ffmpeg();
      void read_thread();
      
      void decode_thread();
      int sentFrame(aclvdecChannelDesc *vdecChannelDesc, uint64_t frame_count);
      bool sendVdecEos(aclvdecChannelDesc *vdecChannelDesc);
      void release_dvpp();

  
  private:
      FFDecConfig m_cfg;
      string m_dec_name;
  

      const void * m_finishedDecArg;
      DECODE_FINISHED_CALLBACK decode_finished_cbk;
  
      bool m_bFinished{false};

      bool m_bRunning{false};
      bool m_bPause{false};
      bool m_bExitReportThd{false};
  
      // 读取数据
      AVStream* stream{nullptr};
      int video_index{-1};
      AVFormatContext *fmt_ctx{nullptr};
      AVPixelFormat pix_fmt;
      AVCodecContext *avctx{nullptr};
      AVBSFContext * h264bsfc{nullptr};
  
      int frame_width{0};
  	int frame_height{0};
      bool m_bReal; // 是否实时流
      float m_fps{0.0};
  
      RECEIVER_FINISHED_CALLBACK receiver_finished_cbk;
  
      pthread_t m_read_thread{0};
  
      bool m_dec_keyframe;
  
      mutex m_pktQueue_mutex;
      queue<AVPacket*> m_pktQueue;
  
      // 解码
      int m_dvpp_deviceId {-1};
      int m_dvpp_channel {-1};
      aclrtContext m_context{nullptr};
      acldvppStreamFormat enType;
  
      pthread_t m_decode_thread{0};
      mutex m_vdecQueue_mutex;
      queue<void*> m_vdecQueue;
  
      const void * m_postDecArg;
      POST_DECODE_CALLBACK post_decoded_cbk;
  
      int m_vdec_out_size {-1};

      // 截图
      bool m_bSnapShoting{false};
      DvppDataMemory* m_cached_mem{nullptr};
      mutex m_cached_mutex;
      condition_variable m_cached_cond;

  };