mirror of https://git.ffmpeg.org/ffmpeg.git
53 lines
1.3 KiB
C
53 lines
1.3 KiB
C
|
/*
|
||
|
|
* G.729 decoder
|
||
|
|
* Copyright (c) 2008 Vladimir Voroshilov
|
||
|
|
*
|
||
|
|
* 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
|
||
|
|
*/
|
||
|
|
#ifndef FFMPEG_G729_H
|
||
|
|
#define FFMPEG_G729_H
|
||
|
|
|
||
|
|
#include <stdint.h>
|
||
|
|
|
||
|
|
/// Moving Average (MA) prediction order
|
||
|
|
#define MA_NP 4
|
||
|
|
|
||
|
|
/**
|
||
|
|
* minimum quantized LSF value (3.2.4)
|
||
|
|
* 0.005 in Q13
|
||
|
|
*/
|
||
|
|
#define LSFQ_MIN 40
|
||
|
|
|
||
|
|
/**
|
||
|
|
* maximum quantized LSF value (3.2.4)
|
||
|
|
* 3.135 in Q13
|
||
|
|
*/
|
||
|
|
#define LSFQ_MAX 25681
|
||
|
|
|
||
|
|
/**
|
||
|
|
* minimum LSF distance (3.2.4)
|
||
|
|
* 0.0391 in Q13
|
||
|
|
*/
|
||
|
|
#define LSFQ_DIFF_MIN 321
|
||
|
|
|
||
|
|
/**
|
||
|
|
* maximum possible subframe size
|
||
|
|
*/
|
||
|
|
#define MAX_SUBFRAME_SIZE 44
|
||
|
|
|
||
|
|
#endif // FFMPEG_G729_H
|