mp3_hdr.h

来自「AMLOGIC DPF source code」· C头文件 代码 · 共 29 行

/*****************************************************************
**                                                                 **
**  Copyright (C) 2004 Amlogic,Inc.                                **
**  All rights reserved                                            **
**        Filename : mp3_hdr.h /Project:AVOS                       ** 
**        Revision : 1.0                                           **
**                                                                 **
*****************************************************************/
#ifndef _MP3_HDR_H
#define _MP3_HDR_H

#include "aw_msg.h"

int mp_get_mp3_header(unsigned char* hbuf,int* chans, int* freq, int* mp3_bps);
//int get_mp3_bps();

#define mp_decode_mp3_header(hbuf, mp3_bps)  mp_get_mp3_header(hbuf,NULL,NULL, mp3_bps)

static inline int mp_check_mp3_header(unsigned int head, int* mp3_bps){
    if( (head & 0x0000e0ff) != 0x0000e0ff ||  
        (head & 0x00fc0000) == 0x00fc0000) return 0;
    if(mp_decode_mp3_header((unsigned char*)(unsigned)(&head),mp3_bps)<=0) return 0;
    return 1;
}

int get_ring_stream_info(int fd, int total_size, AUDIO_STREAM_INFO *asi);

#endif /* _MP3_HDR_H */