mpv/libmpdemux/mp3_hdr.h

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#ifndef MP3_HDR_H
#define MP3_HDR_H
int mp_get_mp3_header(unsigned char* hbuf,int* chans, int* freq, int* spf, int* mpa_layer, int* br);
#define mp_decode_mp3_header(hbuf) mp_get_mp3_header(hbuf,NULL,NULL,NULL,NULL,NULL)
static inline int mp_check_mp3_header(unsigned int head){
if( (head & 0x0000e0ff) != 0x0000e0ff ||
(head & 0x00fc0000) == 0x00fc0000) return 0;
if(mp_decode_mp3_header((unsigned char*)(&head))<=0) return 0;
return 1;
}
#endif /* MP3_HDR_H */