mirror of https://github.com/mpv-player/mpv
37 lines
1.3 KiB
C
37 lines
1.3 KiB
C
/*
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* This file is part of MPlayer.
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*
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* MPlayer is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* MPlayer is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef MPLAYER_MP3_HDR_H
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#define MPLAYER_MP3_HDR_H
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#include <stddef.h>
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int mp_get_mp3_header(unsigned char* hbuf,int* chans, int* freq, int* spf, int* mpa_layer, int* br);
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#define mp_decode_mp3_header(hbuf) mp_get_mp3_header(hbuf,NULL,NULL,NULL,NULL,NULL)
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static inline int mp_check_mp3_header(unsigned int head){
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unsigned char tmp[4] = {head >> 24, head >> 16, head >> 8, head};
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if( (head & 0xffe00000) != 0xffe00000 ||
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(head & 0x00000c00) == 0x00000c00) return 0;
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if(mp_decode_mp3_header(tmp)<=0) return 0;
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return 1;
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}
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#endif /* MPLAYER_MP3_HDR_H */
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