AV1RawMetadataHDRMDCV 373 libavcodec/cbs_av1.h AV1RawMetadataHDRMDCV hdr_mdcv; AV1RawMetadataHDRMDCV 1743 libavcodec/cbs_av1_syntax_template.c AV1RawMetadataHDRMDCV *current)