AV_CODEC_ID_MXPEG  957 libavcodec/codec_desc.c         .id        = AV_CODEC_ID_MXPEG,
AV_CODEC_ID_MXPEG  341 libavcodec/mxpegdec.c     .id             = AV_CODEC_ID_MXPEG,
AV_CODEC_ID_MXPEG   52 libavformat/mxg.c     video_st->codec->codec_id = AV_CODEC_ID_MXPEG;