MAC_SUBFRAME_SIZE  407 libavformat/ape.c     st->codec->frame_size      = MAC_SUBFRAME_SIZE;
MAC_SUBFRAME_SIZE  412 libavformat/ape.c     av_set_pts_info(st, 64, MAC_SUBFRAME_SIZE, ape->samplerate);
MAC_SUBFRAME_SIZE  424 libavformat/ape.c         pts += ape->blocksperframe / MAC_SUBFRAME_SIZE;