AV_CODEC_ID_MSMPEG4V3  120 3rdparty/include/ffmpeg_/libavcodec/avcodec.h     AV_CODEC_ID_MSMPEG4V3,
AV_CODEC_ID_MSMPEG4V3  104 modules/videoio/src/ffmpeg_codecs.hpp #define AV_CODEC_ID_MSMPEG4V3 CODEC_ID_MSMPEG4V3