GSM_SAMPLE_RATE    71 libavformat/gsmdec.c     avpriv_set_pts_info(st, 64, GSM_BLOCK_SAMPLES, GSM_SAMPLE_RATE);
GSM_SAMPLE_RATE    78 libavformat/gsmdec.c        AV_OPT_TYPE_INT, {.i64 = GSM_SAMPLE_RATE}, 1, INT_MAX / GSM_BLOCK_SIZE,