Opencv enum CV_CAP_PROP_GUID

Louis · April 1, 2022, 8:21am

what is this? it know mean??
CV_CAP_PROP_GUID

crackwitz · April 1, 2022, 9:16am

you shouldn’t tag “opencv”. this whole forum is opencv. the tag is meaningless.

the only use of that I’ve found is in the firewire/IEEE1394 interface.

opencv/opencv/blob/17234f82d025e3bbfbf611089637e5aa2038e7b8/modules/videoio/src/cap_dc1394_v2.cpp#L534


      
                                                        &fs.feature[DC1394_FEATURE_WHITE_BALANCE-DC1394_FEATURE_MIN].BU_value,
                                                        &fs.feature[DC1394_FEATURE_WHITE_BALANCE-DC1394_FEATURE_MIN].RV_value) == DC1394_SUCCESS)
              return feature_set.feature[DC1394_FEATURE_WHITE_BALANCE-DC1394_FEATURE_MIN].BU_value;
              break;
          case CV_CAP_PROP_WHITE_BALANCE_RED_V:
              if (dc1394_feature_whitebalance_get_value(dcCam,
                                                        &fs.feature[DC1394_FEATURE_WHITE_BALANCE-DC1394_FEATURE_MIN].BU_value,
                                                        &fs.feature[DC1394_FEATURE_WHITE_BALANCE-DC1394_FEATURE_MIN].RV_value) == DC1394_SUCCESS)
              return feature_set.feature[DC1394_FEATURE_WHITE_BALANCE-DC1394_FEATURE_MIN].RV_value;
              break;
          case CV_CAP_PROP_GUID:
              //the least 32 bits are enough to identify the camera
              return (double) (guid & 0x00000000FFFFFFFF);
              break;
          case CV_CAP_PROP_MODE:
              return (double) userMode;
              break;
          case CV_CAP_PROP_ISO_SPEED:
              return (double) isoSpeed;
          case CV_CAP_PROP_BUFFERSIZE:
              return (double) nDMABufs;

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Opencv enum CV_CAP_PROP_GUID

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