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src/dvpp/VpcPicConverter.cpp 3.32 KB
63e6f7bc   Hu Chunming   完成dvpp。但是nv和gb281...
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  #include "VpcPicConverter.h"
  #include "depend_headers.h"
  
  #define ALIGN_UP(val, align) (((val) % (align) == 0) ? (val) : (((val) / (align) + 1) * (align)))
  
  bool VpcPicConverter::init(aclrtContext context){
  
      aclrtSetCurrentContext(context);
      aclrtCreateStream(&stream_);
  
      // 3. 创建图片数据处理通道时的通道描述信息,dvppChannelDesc_acldvppChannelDesc类型
      dvppChannelDesc_ = acldvppCreateChannelDesc();
  
      // 4. 创建图片数据处理的通道。
      int ret = acldvppCreateChannel(dvppChannelDesc_);
      if(ret != ACL_ERROR_NONE){
          LOG_ERROR("acldvppCreateChannel failed !");
          return false;
      }
  
      ret = acldvppSetChannelDescMode(dvppChannelDesc_, DVPP_CHNMODE_VPC);
      if(ret != ACL_ERROR_NONE){
          LOG_ERROR("acldvppSetChannelDescMode failed !");
          return false;
      }
  
      return true;
  }
  
  DvppRgbMemory* VpcPicConverter::convert2bgr(acldvppPicDesc *inputDesc_, int out_width, int out_height, bool key_frame){
  
      // 8. 创建色域转换的输出图片的描述信息,并设置各属性值, 输出的宽和高要求和输入一致
      // 如果色域转换的输出图片作为模型推理的输入,则输出图片的宽高要与模型要求的宽高保持一致
      // outputDesc_acldvppPicDesc类型
      int out_buf_width = ALIGN_UP(out_width, 16) * 3;
      int out_buf_height = ALIGN_UP(out_height, 2);
      int out_buf_size = out_buf_width * out_buf_height;
  
      DvppRgbMemory* rgbMem = new DvppRgbMemory(3, out_buf_width, out_buf_height, out_buf_size, "", to_string(m_devId), key_frame);
      void *outBufferDev_ = (void*)rgbMem->getMem();
  
      acldvppPicDesc *outputDesc_= acldvppCreatePicDesc();
      acldvppSetPicDescData(outputDesc_, outBufferDev_);
      acldvppSetPicDescFormat(outputDesc_, PIXEL_FORMAT_BGR_888); 
      acldvppSetPicDescWidth(outputDesc_, out_width);
      acldvppSetPicDescHeight(outputDesc_, out_height);
      acldvppSetPicDescWidthStride(outputDesc_, out_buf_width);
      acldvppSetPicDescHeightStride(outputDesc_, out_buf_height);
      acldvppSetPicDescSize(outputDesc_, out_buf_size);
  
      
  
      aclError ret = ACL_ERROR_NONE;
      do{
          // 9. 执行异步色域转换,再调用aclrtSynchronizeStream接口阻塞程序运行,直到指定Stream中的所有任务都完成
          ret = acldvppVpcConvertColorAsync(dvppChannelDesc_, inputDesc_, outputDesc_, stream_);
          if(ret != ACL_ERROR_NONE){
              LOG_ERROR("acldvppVpcConvertColorAsync failed - out_width:{} out_height:{} out_buf_width:{}  out_buf_height:{} out_buf_size:{}", out_width, out_height, out_buf_width,  out_buf_height, out_buf_size);
              break;
          }
          ret = aclrtSynchronizeStream(stream_);
          if(ret != ACL_ERROR_NONE){
              LOG_ERROR("aclrtSynchronizeStream failed - out_width:{} out_height:{} out_buf_width:{}  out_buf_height:{} out_buf_size:{}", out_width, out_height, out_buf_width,  out_buf_height, out_buf_size);
              break;
          }
      }while(0);
  
      // 10. 色域转换结束后,释放资源,包括输入/输出图片的描述信息、输入/输出内存
      // acldvppDestroyPicDesc(inputDesc_); 
      acldvppDestroyPicDesc(outputDesc_);
  
      if(ret != ACL_ERROR_NONE){
          delete rgbMem;
          rgbMem = nullptr;
      }
  
      return rgbMem;
  }
  
  void VpcPicConverter::release(){
      aclrtDestroyStream(stream_);
      // aclrtDestroyContext(context_);
  }