/*
* MPEG Audio common code
* Copyright ( c ) 2001 , 2002 Fabrice Bellard
*
* This file is part of FFmpeg .
*
* FFmpeg is free software ; you can redistribute it and / or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation ; either
* version 2 . 1 of the License , or ( at your option ) any later version .
*
* FFmpeg is distributed in the hope that it will be useful ,
* but WITHOUT ANY WARRANTY ; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE . See the GNU
* Lesser General Public License for more details .
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg ; if not , write to the Free Software
* Foundation , Inc . , 51 Franklin Street , Fifth Floor , Boston , MA 02110 - 1301 USA
*/
/**
* @ file
* MPEG Audio common code .
*/
#include "mpegaudio.h"
/* bitrate is in kb/s */
int ff_mpa_l2_select_table(int bitrate, int nb_channels, int freq, int lsf)
{
int ch_bitrate, table;
ch_bitrate = bitrate / nb_channels;
if (!lsf) {
if ((freq == 48000 && ch_bitrate >= 56 ) ||
(ch_bitrate >= 56 && ch_bitrate <= 80 ))
table = 0 ;
else if (freq != 48000 && ch_bitrate >= 96 )
table = 1 ;
else if (freq != 32000 && ch_bitrate <= 48 )
table = 2 ;
else
table = 3 ;
} else {
table = 4 ;
}
return table;
}
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(vorverarbeitet am 2026-09-28)
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