mirror of
https://github.com/nyanmisaka/ffmpeg-rockchip.git
synced 2025-10-31 12:36:41 +08:00
8c87658fdc
* commit 'a16577d9857206089fd8bce6a342b31dbd7fb9b0': MSN Audio support Conflicts: libavformat/riff.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
46 lines
1.4 KiB
C
46 lines
1.4 KiB
C
/*
|
|
* gsm 06.10 decoder data
|
|
* Copyright (c) 2010 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
|
|
*
|
|
* 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 AVCODEC_GSMDEC_DATA_H
|
|
#define AVCODEC_GSMDEC_DATA_H
|
|
|
|
#include <stdint.h>
|
|
#include "avcodec.h"
|
|
|
|
typedef struct GSMContext {
|
|
// Contains first 120 elements from the previous frame
|
|
// (used by long_term_synth according to the "lag"),
|
|
// then in the following 160 elements the current
|
|
// frame is constructed.
|
|
int16_t ref_buf[280];
|
|
int v[9];
|
|
int lar[2][8];
|
|
int lar_idx;
|
|
int msr;
|
|
} GSMContext;
|
|
|
|
extern const uint16_t ff_gsm_long_term_gain_tab[4];
|
|
extern const int16_t ff_gsm_dequant_tab[64][8];
|
|
|
|
extern const int* const ff_gsm_apcm_bits[][4];
|
|
|
|
#endif /* AVCODEC_GSMDEC_DATA_H */
|