blob: 32cd01ea7a5f8b668c7e1eb92641dc269061d272 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
/*
* gsm 06.10 decoder data
* Copyright (c) 2010 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
*
* This file is part of Libav.
*
* Libav 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.
*
* Libav 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 Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef GSMDEC_DATA
#define GSMDEC_DATA
#include <stdint.h>
// input and output sizes in byte
#define GSM_BLOCK_SIZE 33
#define GSM_MS_BLOCK_SIZE 65
#define GSM_FRAME_SIZE 160
typedef struct {
// 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];
#endif
|