FFmpeg  4.0
ttadata.h
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1 /*
2  * TTA (The Lossless True Audio) data
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 #ifndef AVCODEC_TTADATA_H
22 #define AVCODEC_TTADATA_H
23 
24 #include "internal.h"
25 
26 #define MAX_ORDER 16
27 typedef struct TTAFilter {
32 } TTAFilter;
33 
34 typedef struct TTARice {
35  uint32_t k0, k1, sum0, sum1;
36 } TTARice;
37 
38 typedef struct TTAChannel {
42 } TTAChannel;
43 
44 extern const uint32_t ff_tta_shift_1[];
45 extern const uint32_t * const ff_tta_shift_16;
46 extern const uint8_t ff_tta_filter_configs[];
47 
48 void ff_tta_rice_init(TTARice *c, uint32_t k0, uint32_t k1);
50 #endif /* AVCODEC_TTADATA_H */
void ff_tta_rice_init(TTARice *c, uint32_t k0, uint32_t k1)
Definition: ttadata.c:40
int32_t predictor
Definition: ttadata.h:39
const uint8_t ff_tta_filter_configs[]
Definition: ttadata.c:38
int32_t error
Definition: ttadata.h:28
int32_t round
Definition: ttadata.h:28
uint8_t
int32_t qm[MAX_ORDER]
Definition: ttadata.h:29
int32_t shift
Definition: ttadata.h:28
const uint32_t ff_tta_shift_1[]
Definition: ttadata.c:23
uint32_t sum1
Definition: ttadata.h:35
const uint32_t *const ff_tta_shift_16
Definition: ttadata.c:36
int32_t
int32_t dx[MAX_ORDER]
Definition: ttadata.h:30
common internal api header.
static double c[64]
TTAFilter filter
Definition: ttadata.h:40
int32_t dl[MAX_ORDER]
Definition: ttadata.h:31
#define MAX_ORDER
Definition: ttadata.h:26
TTARice rice
Definition: ttadata.h:41
void ff_tta_filter_init(TTAFilter *c, int32_t shift)
Definition: ttadata.c:48