Hu Chunming / vpt_ascend

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

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

  #include <thread>
  #include <chrono>
  #include <atomic>

  #include "VpcUtils.h"

  
  using namespace std;
  

  typedef void(*RECEIVER_FINISHED_CALLBACK)(const void* userPtr);
  

  
  struct Vdec_CallBack_UserData;

  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 getOutResolution( 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 *pUserData);

      void doProcessReport();

      long long get_last_read_ts();

  
  private:
      AVCodecContext* init_FFmpeg(FFDecConfig config);

      bool init_dvpp(FFDecConfig cfg);

      void release_ffmpeg();
      void read_thread();
      

      int sendPkt(aclvdecChannelDesc *vdecChannelDesc, AVPacket* pkt, unsigned long long frame_nb);

      bool sendVdecEos(aclvdecChannelDesc *vdecChannelDesc);
      void release_dvpp();

      void display_thread();
  
      int getVdecType(int videoType, int profile);
  
      void calcOutResolution(int w, int h);
  

  private:
      FFDecConfig m_cfg;
      string m_dec_name;
  

      const void * m_finishedDecArg {nullptr};
      DECODE_FINISHED_CALLBACK decode_finished_cbk {nullptr};

  
      bool m_bFinished{false};

      bool m_bRunning{false};
      bool m_bPause{false};

      bool m_bExitReportThd{false};

      bool m_bExitDisplayThd{false};

  
      // 读取数据

      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};

      int out_frame_width{0};
  	int out_frame_height{0};
      bool m_bReal {false}; // 是否实时流

      float m_fps{0.0};
  

      std::thread* m_read_thread{nullptr};

      bool m_dec_keyframe {false};
      bool m_bResize {false};

  
      // 解码
      int m_dvpp_deviceId {-1};
      int m_dvpp_channel {-1};
      aclrtContext m_context{nullptr};

      acldvppStreamFormat m_enType;

      const void * m_postDecArg {nullptr};
      POST_DECODE_CALLBACK post_decoded_cbk {nullptr};

  
      int m_vdec_out_size {-1};

      queue<DvppDataMemory*> m_decoded_data_queue;
      mutex m_decoded_data_queue_mtx;
  
      long long last_ts {0};
  
      long long m_last_read_ts {0};
  
      uint64_t m_in_count {0};
      uint64_t m_out_count {0};
  
      int m_frameSkip {1};
  
      std::atomic<int> m_DvppCacheCounter{0};
      int m_cache_gop{0};
  
      VpcUtils m_vpcUtils;

  };