that the frame size must be computed externally */
int avpriv_mpegaudio_decode_header(MPADecodeHeader *s, uint32_t header);
-/* useful helper to get mpeg audio stream infos. Return -1 if error in
+/* useful helper to get MPEG audio stream info. Return -1 if error in
header, otherwise the coded frame size in bytes */
int ff_mpa_decode_header(uint32_t head, int *sample_rate,
int *channels, int *frame_size, int *bitrate, enum AVCodecID *codec_id);