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
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
|
/*
* DCA compatible decoder
* Copyright (C) 2004 Gildas Bazin
* Copyright (C) 2004 Benjamin Zores
* Copyright (C) 2006 Benjamin Larsson
* Copyright (C) 2007 Konstantin Shishkov
* Copyright (C) 2016 foo86
*
* 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_DCA_H
#define AVCODEC_DCA_H
#include <stdint.h>
#include "libavutil/common.h"
#include "libavutil/internal.h"
#include "libavutil/intreadwrite.h"
enum DCASpeaker {
DCA_SPEAKER_C, DCA_SPEAKER_L, DCA_SPEAKER_R, DCA_SPEAKER_Ls,
DCA_SPEAKER_Rs, DCA_SPEAKER_LFE1, DCA_SPEAKER_Cs, DCA_SPEAKER_Lsr,
DCA_SPEAKER_Rsr, DCA_SPEAKER_Lss, DCA_SPEAKER_Rss, DCA_SPEAKER_Lc,
DCA_SPEAKER_Rc, DCA_SPEAKER_Lh, DCA_SPEAKER_Ch, DCA_SPEAKER_Rh,
DCA_SPEAKER_LFE2, DCA_SPEAKER_Lw, DCA_SPEAKER_Rw, DCA_SPEAKER_Oh,
DCA_SPEAKER_Lhs, DCA_SPEAKER_Rhs, DCA_SPEAKER_Chr, DCA_SPEAKER_Lhr,
DCA_SPEAKER_Rhr, DCA_SPEAKER_Cl, DCA_SPEAKER_Ll, DCA_SPEAKER_Rl,
DCA_SPEAKER_RSV1, DCA_SPEAKER_RSV2, DCA_SPEAKER_RSV3, DCA_SPEAKER_RSV4,
DCA_SPEAKER_COUNT
};
enum DCASpeakerMask {
DCA_SPEAKER_MASK_C = 0x00000001,
DCA_SPEAKER_MASK_L = 0x00000002,
DCA_SPEAKER_MASK_R = 0x00000004,
DCA_SPEAKER_MASK_Ls = 0x00000008,
DCA_SPEAKER_MASK_Rs = 0x00000010,
DCA_SPEAKER_MASK_LFE1 = 0x00000020,
DCA_SPEAKER_MASK_Cs = 0x00000040,
DCA_SPEAKER_MASK_Lsr = 0x00000080,
DCA_SPEAKER_MASK_Rsr = 0x00000100,
DCA_SPEAKER_MASK_Lss = 0x00000200,
DCA_SPEAKER_MASK_Rss = 0x00000400,
DCA_SPEAKER_MASK_Lc = 0x00000800,
DCA_SPEAKER_MASK_Rc = 0x00001000,
DCA_SPEAKER_MASK_Lh = 0x00002000,
DCA_SPEAKER_MASK_Ch = 0x00004000,
DCA_SPEAKER_MASK_Rh = 0x00008000,
DCA_SPEAKER_MASK_LFE2 = 0x00010000,
DCA_SPEAKER_MASK_Lw = 0x00020000,
DCA_SPEAKER_MASK_Rw = 0x00040000,
DCA_SPEAKER_MASK_Oh = 0x00080000,
DCA_SPEAKER_MASK_Lhs = 0x00100000,
DCA_SPEAKER_MASK_Rhs = 0x00200000,
DCA_SPEAKER_MASK_Chr = 0x00400000,
DCA_SPEAKER_MASK_Lhr = 0x00800000,
DCA_SPEAKER_MASK_Rhr = 0x01000000,
DCA_SPEAKER_MASK_Cl = 0x02000000,
DCA_SPEAKER_MASK_Ll = 0x04000000,
DCA_SPEAKER_MASK_Rl = 0x08000000,
};
#define DCA_SPEAKER_LAYOUT_MONO (DCA_SPEAKER_MASK_C)
#define DCA_SPEAKER_LAYOUT_STEREO (DCA_SPEAKER_MASK_L | DCA_SPEAKER_MASK_R)
#define DCA_SPEAKER_LAYOUT_2POINT1 (DCA_SPEAKER_LAYOUT_STEREO | DCA_SPEAKER_MASK_LFE1)
#define DCA_SPEAKER_LAYOUT_3_0 (DCA_SPEAKER_LAYOUT_STEREO | DCA_SPEAKER_MASK_C)
#define DCA_SPEAKER_LAYOUT_2_1 (DCA_SPEAKER_LAYOUT_STEREO | DCA_SPEAKER_MASK_Cs)
#define DCA_SPEAKER_LAYOUT_3_1 (DCA_SPEAKER_LAYOUT_3_0 | DCA_SPEAKER_MASK_Cs)
#define DCA_SPEAKER_LAYOUT_2_2 (DCA_SPEAKER_LAYOUT_STEREO | DCA_SPEAKER_MASK_Ls | DCA_SPEAKER_MASK_Rs)
#define DCA_SPEAKER_LAYOUT_5POINT0 (DCA_SPEAKER_LAYOUT_3_0 | DCA_SPEAKER_MASK_Ls | DCA_SPEAKER_MASK_Rs)
#define DCA_SPEAKER_LAYOUT_5POINT1 (DCA_SPEAKER_LAYOUT_5POINT0 | DCA_SPEAKER_MASK_LFE1)
#define DCA_SPEAKER_LAYOUT_7POINT0_WIDE (DCA_SPEAKER_LAYOUT_5POINT0 | DCA_SPEAKER_MASK_Lw | DCA_SPEAKER_MASK_Rw)
#define DCA_SPEAKER_LAYOUT_7POINT1_WIDE (DCA_SPEAKER_LAYOUT_7POINT0_WIDE | DCA_SPEAKER_MASK_LFE1)
#define DCA_HAS_STEREO(mask) \
((mask & DCA_SPEAKER_LAYOUT_STEREO) == DCA_SPEAKER_LAYOUT_STEREO)
enum DCASpeakerPair {
DCA_SPEAKER_PAIR_C = 0x0001,
DCA_SPEAKER_PAIR_LR = 0x0002,
DCA_SPEAKER_PAIR_LsRs = 0x0004,
DCA_SPEAKER_PAIR_LFE1 = 0x0008,
DCA_SPEAKER_PAIR_Cs = 0x0010,
DCA_SPEAKER_PAIR_LhRh = 0x0020,
DCA_SPEAKER_PAIR_LsrRsr = 0x0040,
DCA_SPEAKER_PAIR_Ch = 0x0080,
DCA_SPEAKER_PAIR_Oh = 0x0100,
DCA_SPEAKER_PAIR_LcRc = 0x0200,
DCA_SPEAKER_PAIR_LwRw = 0x0400,
DCA_SPEAKER_PAIR_LssRss = 0x0800,
DCA_SPEAKER_PAIR_LFE2 = 0x1000,
DCA_SPEAKER_PAIR_LhsRhs = 0x2000,
DCA_SPEAKER_PAIR_Chr = 0x4000,
DCA_SPEAKER_PAIR_LhrRhr = 0x8000
};
/**
* Return number of individual channels in DCASpeakerPair mask
*/
static inline int ff_dca_count_chs_for_mask(unsigned int mask)
{
return av_popcount((mask & 0xffff) | ((mask & 0xae66) << 16));
}
enum DCARepresentationType {
DCA_REPR_TYPE_LtRt = 2,
DCA_REPR_TYPE_LhRh = 3
};
enum DCAExtensionMask {
DCA_CSS_CORE = 0x001,
DCA_CSS_XXCH = 0x002,
DCA_CSS_X96 = 0x004,
DCA_CSS_XCH = 0x008,
DCA_CSS_MASK = 0x00f,
DCA_EXSS_CORE = 0x010,
DCA_EXSS_XBR = 0x020,
DCA_EXSS_XXCH = 0x040,
DCA_EXSS_X96 = 0x080,
DCA_EXSS_LBR = 0x100,
DCA_EXSS_XLL = 0x200,
DCA_EXSS_RSV1 = 0x400,
DCA_EXSS_RSV2 = 0x800,
DCA_EXSS_MASK = 0xff0,
};
enum DCADownMixType {
DCA_DMIX_TYPE_1_0,
DCA_DMIX_TYPE_LoRo,
DCA_DMIX_TYPE_LtRt,
DCA_DMIX_TYPE_3_0,
DCA_DMIX_TYPE_2_1,
DCA_DMIX_TYPE_2_2,
DCA_DMIX_TYPE_3_1,
DCA_DMIX_TYPE_COUNT
};
extern av_export const uint32_t avpriv_dca_sample_rates[16];
/**
* Convert bitstream to one representation based on sync marker
*/
int avpriv_dca_convert_bitstream(const uint8_t *src, int src_size, uint8_t *dst,
int max_size);
#endif /* AVCODEC_DCA_H */
|
