SAMPLES_BUF_SIZE   51 libavcodec/mpegaudioenc.c     short samples_buf[MPA_MAX_CHANNELS][SAMPLES_BUF_SIZE]; /* buffer for filter */
SAMPLES_BUF_SIZE  362 libavcodec/mpegaudioenc.c             memmove(s->samples_buf[ch] + SAMPLES_BUF_SIZE - (512 - 32),
SAMPLES_BUF_SIZE  364 libavcodec/mpegaudioenc.c             offset = SAMPLES_BUF_SIZE - 512;