AV_CODEC_ID_MPEG1VIDEO  104 3rdparty/include/ffmpeg_/libavcodec/avcodec.h     AV_CODEC_ID_MPEG1VIDEO,
AV_CODEC_ID_MPEG1VIDEO  110 modules/videoio/src/ffmpeg_codecs.hpp #define AV_CODEC_ID_MPEG1VIDEO CODEC_ID_MPEG1VIDEO