CODEC_ID_PGM       88 libavcodec/pnm_parser.c     { CODEC_ID_PGM, CODEC_ID_PGMYUV, CODEC_ID_PPM, CODEC_ID_PBM, CODEC_ID_PAM},
CODEC_ID_PGM      368 libavcodec/pnmenc.c     CODEC_ID_PGM,
CODEC_ID_PGM       50 libavformat/img2.c     { CODEC_ID_PGM       , "pgm"},