Hu Chunming / FFNvDecoder

  #include "FFNvDecoderManager.h"
  #include <iostream>
  

  #include "cuda_kernels.h"
  
  #include "NvJpegEncoder.h"
  

  #include <pthread.h>
  #include <thread>
  
  #include <chrono>
  

  
  
  #include <unistd.h>
  
  
  #ifdef _WIN32
  #include "Winsock2.h"
  #pragma comment(lib, "ws2_32.lib")
  #endif
  
  #ifdef __linux__
  #include "arpa/inet.h"
  #endif
  
  
  #define MIN_RTP_PORT		10000
  #define MAX_RTP_PORT		60000
  

  // ȡ MIN_RTP_PORT(10000)~MAX_RTP_PORT(60000)֮�������˿�(ż���������������˿ڿ���)
  int allocRtpPort() {
  
  	static int s_rtpPort = MIN_RTP_PORT;
  	if (MIN_RTP_PORT == s_rtpPort)
  	{
  		srand((unsigned int)time(NULL));
  		s_rtpPort = MIN_RTP_PORT + (rand() % MIN_RTP_PORT);
  	}
  
  	if (s_rtpPort % 2)
  		++s_rtpPort;
  
  	while (true)
  	{
  		s_rtpPort += 2;
  		s_rtpPort = s_rtpPort >= MAX_RTP_PORT ? MIN_RTP_PORT : s_rtpPort;
  
  		int i = 0;
  		for (; i < 2; i++)
  		{
  			sockaddr_in sRecvAddr;
  			int s = socket(AF_INET, SOCK_DGRAM, 0);
  
  			sRecvAddr.sin_family = AF_INET;        
  			sRecvAddr.sin_addr.s_addr = htonl(INADDR_ANY);    
  			sRecvAddr.sin_port = htons(s_rtpPort + i); 
  
  			int nResult = bind(s, (sockaddr *)&sRecvAddr, sizeof(sRecvAddr));
  			if (nResult != 0)
  			{
  				break;
  			}
  
  			nResult = close(s);
  			if (nResult != 0)
  			{
  				printf("closesocket failed:%d\n", nResult);
  				break;
  			}
  		}
  
  		if (i == 2)
  			break;
  	}
  
  	return s_rtpPort;
  }
  
  
  
  
  

  unsigned char *pHwRgb[2] = {nullptr, nullptr};
  
  int sum1 = 0;
  int sum2 = 0;
  
  cudaStream_t stream[2];

  string data_home = "/data/tongtu/";

  
  
  #define checkCudaErrors(S) do {CUresult  status; \
          status = S; \
          if (status != CUDA_SUCCESS ) std::cout << __LINE__ <<" checkCudaErrors - status = " << status << std::endl; \
          } while (false)
  
  
  static void gpu_helper(int gpuid)
  {
      cudaSetDevice(gpuid);
  
      // int *dn;
      // cudaMalloc((void **)&dn, 1 * sizeof(int));
  
  	size_t free_byte;
  	size_t total_byte;
  
  	CUresult cuda_status = cuMemGetInfo(&free_byte, &total_byte);
  
  	const char *pStr = nullptr;
  	if (CUDA_SUCCESS != cuda_status) {
  		cuGetErrorString(cuda_status, &pStr);
  		printf("Error: cudaMemGetInfo fails, %s \n", pStr);
  		return;
  	}
  
  	double free_db = (double)free_byte;
  	double total_db = (double)total_byte;
  	double used_db_1 = (total_db - free_db) / 1024.0 / 1024.0;
  
  	std::cout <<"显存已使用 " << used_db_1 << " MB\n";
  
      // cudaFree(dn);
  }
  
  int CheckCUDAProperty( int devId )
  {
      cuInit(0);
  
  	CUdevice dev = devId;
  	size_t memSize = 0;
  	char devName[256] = {0};
  	int major = 0, minor = 0;
  	CUresult rlt = CUDA_SUCCESS;
  
      rlt = cuDeviceGetAttribute(&major, CU_DEVICE_ATTRIBUTE_COMPUTE_CAPABILITY_MAJOR, dev);
      checkCudaErrors( rlt );
  
      rlt = cuDeviceGetAttribute(&minor, CU_DEVICE_ATTRIBUTE_COMPUTE_CAPABILITY_MINOR, dev);
  	checkCudaErrors( rlt );
  
  	rlt = cuDeviceGetName( devName, sizeof( devName ), dev );
  	checkCudaErrors( rlt );
  
  	printf( "Using GPU Device %d: %s has SM %d.%d compute capability\n",
  		    dev, devName, major, minor );
  
  	rlt = cuDeviceTotalMem( &memSize, dev );
  	checkCudaErrors( rlt );
  
  	printf( "Total amount of global memory:   %4.4f MB\n",
  		   (float)memSize / ( 1024 * 1024 ) );
  
  	return 0;
  }
  

  /**
   * 注意： gpuFrame 在解码器设置的显卡上，后续操作要十分注意这一点，尤其是多线程情况
   * */

  void postDecoded(const void * userPtr, AVFrame * gpuFrame){

      AbstractDecoder* decoder = (AbstractDecoder*)userPtr;

      if (decoder!= nullptr)
      {

          // cout << "decode name: " << decoder->getName() << endl;
  

              // const char* gpu_pixfmt = av_get_pix_fmt_name((AVPixelFormat)gpuFrame->format);
              // cout << "pixfmt: " << gpu_pixfmt << endl;
              // cout << "keyframe: " << gpuFrame->key_frame << " width: " << gpuFrame->width << " height: "<< gpuFrame->height << endl;
              // cout << "decode successed ✿✿ヽ(°▽°)ノ✿ " << endl;
  
              int sum = sum1;

              if (decoder->getName() == "dec0")

              {
                  sum1 ++ ;
                  sum = sum1;
  
                  if (gpuFrame->format == AV_PIX_FMT_CUDA)
                  {   

                      // cout << "gpuid = " << atoi(decoder->m_cfg.gpuid.c_str()) << endl;

                      cudaSetDevice(atoi(decoder->m_cfg.gpuid.c_str()));
                      cudaError_t cudaStatus;
                      if(pHwRgb[0] == nullptr){
                          // cudaStreamCreate(&stream[0]);

                          cuda_common::setColorSpace( ITU709, 0 );

                          cudaStatus = cudaMalloc((void **)&pHwRgb[0], 3 * gpuFrame->width * gpuFrame->height * sizeof(unsigned char));
                      }
                      cudaStatus = cuda_common::CUDAToBGR((CUdeviceptr)gpuFrame->data[0],(CUdeviceptr)gpuFrame->data[1], gpuFrame->linesize[0], gpuFrame->linesize[1], pHwRgb[0], gpuFrame->width, gpuFrame->height);
                      cudaDeviceSynchronize();
                      if (cudaStatus != cudaSuccess) {
                          cout << "CUDAToBGR failed !!!" << endl;
                          return;
                      }
  

                      string path = data_home + decoder->getName() + ".jpg";

                      saveJpeg(path.c_str(), pHwRgb[0], gpuFrame->width, gpuFrame->height, stream[0]);  // 验证 CUDAToRGB 
                  }
              } else if (decoder->getName() == "dec2") 
              {
                  sum2 ++ ;
                  sum = sum2;
  
                  if (gpuFrame->format == AV_PIX_FMT_CUDA)
                  {   

                      // cout << "gpuid = " << atoi(decoder->m_cfg.gpuid.c_str()) << endl;

                      cudaSetDevice(atoi(decoder->m_cfg.gpuid.c_str()));
                      cudaError_t cudaStatus;
                      if(pHwRgb[1] == nullptr){
                          // cudaStreamCreate(&stream[1]);

                          cuda_common::setColorSpace( ITU709, 0 );

                          cudaStatus = cudaMalloc((void **)&pHwRgb[1], 3 * gpuFrame->width * gpuFrame->height * sizeof(unsigned char));
                      }
                      cudaStatus = cuda_common::CUDAToBGR((CUdeviceptr)gpuFrame->data[0],(CUdeviceptr)gpuFrame->data[1], gpuFrame->linesize[0], gpuFrame->linesize[1], pHwRgb[1], gpuFrame->width, gpuFrame->height);
                      cudaDeviceSynchronize();
                      if (cudaStatus != cudaSuccess) {
                          cout << "CUDAToBGR failed !!!" << endl;
                          return;
                      }
  

                      string path = data_home + decoder->getName() + ".jpg";

                      saveJpeg(path.c_str(), pHwRgb[1], gpuFrame->width, gpuFrame->height, stream[1]);  // 验证 CUDAToRGB 
                  }
              }

      }
  }
  

  long start_time = 0;
  long end_time = 0;
  bool count_flag = false;
  int count = 0;
  int count_std = 100;
  

  static long long get_cur_time(){

      // 获取操作系统当前时间点（精确到ms）

      chrono::time_point<chrono::system_clock, chrono::milliseconds> tpMicro
          = chrono::time_point_cast<chrono::milliseconds>(chrono::system_clock::now());

      return tpMicro.time_since_epoch().count();

  }
  

  static int sum = 0;

  unsigned char *pHwData = nullptr;
  

  void postDecoded0(const void * userPtr, AVFrame * gpuFrame){

      // std::this_thread::sleep_for(std::chrono::milliseconds(30000));
  

      AbstractDecoder* decoder = (AbstractDecoder*)userPtr;

      if (decoder!= nullptr)
      {
          // cout << "decode name: " << decoder->getName() << endl;
          if (decoder->getName() == "dec")
          {
              if (! count_flag)
              {
                  count_flag = true;
                  count = 0;
                  end_time = start_time = get_cur_time();
              }
              count++;
              sum ++ ;

              if (count >= count_std)
              {
                  // end_time = get_cur_time();
                  // long time_using = end_time - start_time;
                  // double time_per_frame = double(time_using)/count_std ;
                  // cout << count_std << "帧用时:" << time_using << "ms 每帧用时：" << time_per_frame << "ms" << endl;

                  cout << decoder->getName() << " keyframe: " << gpuFrame->key_frame << " width: " << gpuFrame->width << " height: "<< gpuFrame->height << endl;
                  // cout << gpuFrame->pts << endl;

  
                  count_flag = false;
              }

              // cout << "帧数：" << sum << endl;

  
              if (gpuFrame->format == AV_PIX_FMT_CUDA)
              {   
                  cudaSetDevice(atoi(decoder->m_cfg.gpuid.c_str()));
                  // cout << "gpu id : " << decoder->m_cfg.gpuid.c_str() << endl;
                  cudaError_t cudaStatus;
                  if(pHwData == nullptr){

                      cuda_common::setColorSpace( ITU709, 0 );

                      cudaStatus = cudaMalloc((void **)&pHwData, 3 * gpuFrame->width * gpuFrame->height * sizeof(unsigned char));
                  }
                  cudaStatus = cuda_common::CUDAToBGR((CUdeviceptr)gpuFrame->data[0],(CUdeviceptr)gpuFrame->data[1], gpuFrame->linesize[0], gpuFrame->linesize[1], pHwData, gpuFrame->width, gpuFrame->height);
                  cudaDeviceSynchronize();
                  if (cudaStatus != cudaSuccess) {
                      cout << "CUDAToBGR failed !!!" << endl;
                      return;
                  }
  

                  string path = data_home + decoder->getName() + ".jpg";

                  saveJpeg(path.c_str(), pHwData, gpuFrame->width, gpuFrame->height, nullptr);  // 验证 CUDAToRGB 
              }

          }
      }
  }
  

  void decode_finished_cbk(const void* userPtr){

      cout << "当前时间戳: " << get_cur_time() << endl;

  }
  

  bool decode_request_stream_cbk(){
      cout << "需在此请求流" << endl;
      return true;
  }
  

  // string test_uri = "rtmp://192.168.10.56:1935/objecteye/1";

  // string test_uri = "/home/cmhu/data/output_800x480.mp4";

  // string test_uri = "/home/cmhu/data/output_1920x1080.mp4";
  // string test_uri = "rtsp://176.10.0.2:8554/stream";

  // string test_uri = "/mnt/f/fiss/test_data/h265.mp4";
  string test_uri = "rtsp://176.10.0.4:8554/stream";

  void createDecode(int index, const char* gpu_id){

      FFNvDecoderManager* pDecManager = FFNvDecoderManager::getInstance();

      MgrDecConfig config;

      config.name = "dec" + to_string(index);

      config.cfg.uri = test_uri;

      config.cfg.post_decoded_cbk = postDecoded;

      config.cfg.decode_finished_cbk = decode_finished_cbk;

      config.cfg.force_tcp = true;

      config.dec_type = DECODER_TYPE_FFMPEG;

      config.cfg.gpuid = gpu_id;

      // if (index % 2 == 0)
      // {

      //     config.cfg.gpuid = "0";

      // }
      // else
      // {
      //     config.cfg.gpuid = "0";
      // }

      AbstractDecoder* decoder = pDecManager->createDecoder(config);
      if (!decoder)

      {

          return ;

      }

      pDecManager->setPostDecArg(config.name, decoder);
      pDecManager->setFinishedDecArg(config.name, decoder);
      pDecManager->startDecodeByName(config.name);
  }
  

  void createGB28181Decode(int index, char* gpu_id, int port){

      FFNvDecoderManager* pDecManager = FFNvDecoderManager::getInstance();
      MgrDecConfig config;
      config.name = "dec" + to_string(index);
      config.cfg.uri = config.name;
      config.cfg.post_decoded_cbk = postDecoded;
      config.cfg.decode_finished_cbk = decode_finished_cbk;

      config.cfg.request_stream_cbk = decode_request_stream_cbk;

      config.cfg.force_tcp = true;
  
      config.dec_type = DECODER_TYPE_GB28181;

      config.cfg.port = port;//allocRtpPort();

      config.cfg.gpuid = gpu_id;

      AbstractDecoder* decoder = pDecManager->createDecoder(config);

      if (!decoder)
      {

          return ;

      }

      pDecManager->setPostDecArg(config.name, decoder);
      pDecManager->setFinishedDecArg(config.name, decoder);

      pDecManager->startDecodeByName(config.name);

  }
  

  void logFF(void *, int level, const char *fmt, va_list ap)
  {
      vfprintf(stdout, fmt, ap);
  }
  
  

  int main(int argc, char* argv[]){
  
      test_uri = argv[1];

      char* gpuid = argv[2];
      int port = atoi(argv[3]);
      cout << test_uri << "   gpu_id:" << gpuid << "   port:" << port << endl;

      // av_log_set_callback(&logFF);
  

      CheckCUDAProperty(atoi(gpuid));

      pthread_t m_decode_thread;
      pthread_create(&m_decode_thread,0,
          [](void* arg)
          {

              // cudaSetDevice(atoi(gpuid));

              while (true)
              {

                  std::this_thread::sleep_for(std::chrono::minutes(1));

                  FFNvDecoderManager* pDecManager = FFNvDecoderManager::getInstance();
                  int count = pDecManager->count();

                  cout << "当前时间：" << get_cur_time() << "  当前运行路数： " << pDecManager->count() << endl;

              }  
  
              return (void*)0;
          }
      ,nullptr);
  

      FFNvDecoderManager* pDecManager = FFNvDecoderManager::getInstance();
      int i = 0;

      while (true)
      {
          int ch = getchar();
          if (ch == 'q')
          {
              break;
          }

          switch (ch)
          {
          case 'f':
          case 'F':

              createDecode(i, gpuid);

              i++;
              break;
          case 'g':
          case 'G':

              createGB28181Decode(i, gpuid, port);

              i++;
              break;
          case 'r':
          case 'R':
              pDecManager->resumeDecoder("dec0");
              break;
          case 'p':
          case 'P':
              pDecManager->pauseDecoder("dec0");
              break;
  
          case 'c':
          case 'C':
              i--;
              pDecManager->closeDecoderByName("dec" + to_string(i));
              break;
  
          case 'i':
          case 'I':
          {
              int w,h;
              pDecManager->getResolution("dec0", w,h);
              printf( "%s : %dx%d\n", "dec0" , w,h );
          }
              break;

          default:
              break;
          }

          /* code */
      }

      cout << "总共帧数：" << sum << endl;

      pDecManager->closeAllDecoder();
  }