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aactab.h
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1 /*
2  * AAC data declarations
3  * Copyright (c) 2005-2006 Oded Shimon ( ods15 ods15 dyndns org )
4  * Copyright (c) 2006-2007 Maxim Gavrilov ( maxim.gavrilov gmail com )
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 /**
24  * @file
25  * AAC data declarations
26  * @author Oded Shimon ( ods15 ods15 dyndns org )
27  * @author Maxim Gavrilov ( maxim.gavrilov gmail com )
28  */
29 
30 #ifndef AVCODEC_AACTAB_H
31 #define AVCODEC_AACTAB_H
32 
33 #include "libavutil/mem.h"
34 #include "aac.h"
35 #include "aac_tablegen_decl.h"
36 
37 #include <stdint.h>
38 
39 /* NOTE:
40  * Tables in this file are used by the AAC decoder and will be used by the AAC
41  * encoder.
42  */
43 
44 /* @name tns_tmp2_map
45  * Tables of the tmp2[] arrays of LPC coefficients used for TNS.
46  * The suffix _M_N[] indicate the values of coef_compress and coef_res
47  * respectively.
48  * @{
49  */
50 static const INTFLOAT tns_tmp2_map_1_3[4] = {
51  Q31(0.00000000f), Q31(-0.43388373f), Q31(0.64278758f), Q31(0.34202015f),
52 };
53 
54 static const INTFLOAT tns_tmp2_map_0_3[8] = {
55  Q31(0.00000000f), Q31(-0.43388373f), Q31(-0.78183150f), Q31(-0.97492790f),
56  Q31(0.98480773f), Q31( 0.86602539f), Q31( 0.64278758f), Q31( 0.34202015f),
57 };
58 
59 static const INTFLOAT tns_tmp2_map_1_4[8] = {
60  Q31(0.00000000f), Q31(-0.20791170f), Q31(-0.40673664f), Q31(-0.58778524f),
61  Q31(0.67369562f), Q31( 0.52643216f), Q31( 0.36124167f), Q31( 0.18374951f),
62 };
63 
64 static const INTFLOAT tns_tmp2_map_0_4[16] = {
65  Q31( 0.00000000f), Q31(-0.20791170f), Q31(-0.40673664f), Q31(-0.58778524f),
66  Q31(-0.74314481f), Q31(-0.86602539f), Q31(-0.95105654f), Q31(-0.99452192f),
67  Q31( 0.99573416f), Q31( 0.96182561f), Q31( 0.89516330f), Q31( 0.79801720f),
68  Q31( 0.67369562f), Q31( 0.52643216f), Q31( 0.36124167f), Q31( 0.18374951f),
69 };
70 
71 static const INTFLOAT * const tns_tmp2_map[4] = {
76 };
77 // @}
78 
79 /* @name window coefficients
80  * @{
81  */
82 DECLARE_ALIGNED(32, extern float, ff_aac_kbd_long_1024)[1024];
83 DECLARE_ALIGNED(32, extern float, ff_aac_kbd_short_128)[128];
84 DECLARE_ALIGNED(32, extern int, ff_aac_kbd_long_1024_fixed)[1024];
85 DECLARE_ALIGNED(32, extern int, ff_aac_kbd_long_512_fixed)[512];
86 DECLARE_ALIGNED(32, extern int, ff_aac_kbd_short_128_fixed)[128];
87 const DECLARE_ALIGNED(32, extern float, ff_aac_eld_window_512)[1920];
88 const DECLARE_ALIGNED(32, extern int, ff_aac_eld_window_512_fixed)[1920];
89 const DECLARE_ALIGNED(32, extern float, ff_aac_eld_window_480)[1800];
90 const DECLARE_ALIGNED(32, extern int, ff_aac_eld_window_480_fixed)[1800];
91 // @}
92 
93 /* @name number of scalefactor window bands for long and short transform windows respectively
94  * @{
95  */
96 extern const uint8_t ff_aac_num_swb_1024[];
97 extern const uint8_t ff_aac_num_swb_512 [];
98 extern const uint8_t ff_aac_num_swb_480 [];
99 extern const uint8_t ff_aac_num_swb_128 [];
100 // @}
101 
102 extern const uint8_t ff_aac_pred_sfb_max [];
103 
104 extern const uint32_t ff_aac_scalefactor_code[121];
105 extern const uint8_t ff_aac_scalefactor_bits[121];
106 
107 extern const uint16_t * const ff_aac_spectral_codes[11];
108 extern const uint8_t * const ff_aac_spectral_bits [11];
109 extern const uint16_t ff_aac_spectral_sizes[11];
110 
111 extern const float *ff_aac_codebook_vectors[];
112 extern const float *ff_aac_codebook_vector_vals[];
113 extern const uint16_t *ff_aac_codebook_vector_idx[];
114 
115 extern const uint16_t * const ff_swb_offset_1024[13];
116 extern const uint16_t * const ff_swb_offset_512 [13];
117 extern const uint16_t * const ff_swb_offset_480 [13];
118 extern const uint16_t * const ff_swb_offset_128 [13];
119 
120 extern const uint8_t ff_tns_max_bands_1024[13];
121 extern const uint8_t ff_tns_max_bands_512 [13];
122 extern const uint8_t ff_tns_max_bands_480 [13];
123 extern const uint8_t ff_tns_max_bands_128 [13];
124 
125 #endif /* AVCODEC_AACTAB_H */
const uint8_t ff_tns_max_bands_1024[13]
Definition: aactab.c:1272
static const INTFLOAT tns_tmp2_map_1_3[4]
Definition: aactab.h:50
const uint32_t ff_aac_scalefactor_code[121]
Definition: aactab.c:61
memory handling functions
#define DECLARE_ALIGNED(n, t, v)
Definition: mem.h:53
const float ff_aac_eld_window_480[1800]
Definition: aactab.c:2256
const int ff_aac_eld_window_480_fixed[1800]
Definition: aactab.c:2709
const uint8_t ff_tns_max_bands_512[13]
Definition: aactab.c:1276
int ff_aac_kbd_long_512_fixed[512]
static const INTFLOAT tns_tmp2_map_1_4[8]
Definition: aactab.h:59
uint8_t
#define INTFLOAT
Definition: aac_defines.h:85
const float * ff_aac_codebook_vector_vals[]
Definition: aactab.c:1062
const uint16_t * ff_aac_codebook_vector_idx[]
Definition: aactab.c:1071
const uint8_t ff_aac_pred_sfb_max[]
Definition: aactab.c:57
static const INTFLOAT tns_tmp2_map_0_3[8]
Definition: aactab.h:54
const uint8_t ff_aac_scalefactor_bits[121]
Definition: aactab.c:80
const uint16_t *const ff_swb_offset_512[13]
Definition: aactab.c:1238
const uint8_t ff_aac_num_swb_128[]
Definition: aactab.c:53
const uint16_t *const ff_aac_spectral_codes[11]
Definition: aactab.c:405
float ff_aac_kbd_long_1024[1024]
Definition: aactab.c:36
const uint8_t *const ff_aac_spectral_bits[11]
Definition: aactab.c:410
const uint16_t *const ff_swb_offset_480[13]
Definition: aactab.c:1246
#define Q31(x)
Definition: aac_defines.h:94
const float * ff_aac_codebook_vectors[]
Definition: aactab.c:906
const uint8_t ff_aac_num_swb_1024[]
Definition: aactab.c:41
const uint16_t ff_aac_spectral_sizes[11]
Definition: aactab.c:415
AAC definitions and structures.
int ff_aac_kbd_long_1024_fixed[1024]
Definition: aactab.c:38
static const INTFLOAT *const tns_tmp2_map[4]
Definition: aactab.h:71
int ff_aac_kbd_short_128_fixed[128]
Definition: aactab.c:39
const uint16_t *const ff_swb_offset_1024[13]
Definition: aactab.c:1230
float ff_aac_kbd_short_128[128]
Definition: aactab.c:37
const uint8_t ff_tns_max_bands_480[13]
Definition: aactab.c:1280
static const INTFLOAT tns_tmp2_map_0_4[16]
Definition: aactab.h:64
const int ff_aac_eld_window_512_fixed[1920]
Definition: aactab.c:1773
const float ff_aac_eld_window_512[1920]
Definition: aactab.c:1289
const uint8_t ff_aac_num_swb_480[]
Definition: aactab.c:49
const uint8_t ff_tns_max_bands_128[13]
Definition: aactab.c:1284
const uint16_t *const ff_swb_offset_128[13]
Definition: aactab.c:1254
const uint8_t ff_aac_num_swb_512[]
Definition: aactab.c:45