FFmpeg
formats.c
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1 /*
2  * Copyright (c) 2007 Bobby Bingham
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 #include "libavutil/channel_layout.h"
22 #include "libavfilter/formats.c"
23 
24 #undef printf
25 
26 const int64_t avfilter_all_channel_layouts[] = {
27  AV_CH_FRONT_CENTER,
28  AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY,
29  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT,
30  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_LOW_FREQUENCY,
31  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER,
32  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY,
33  AV_CH_FRONT_CENTER|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT,
34  AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT,
35  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT,
36  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_LOW_FREQUENCY|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT,
37  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT,
38  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT,
39  AV_CH_FRONT_CENTER|AV_CH_BACK_CENTER,
40  AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_BACK_CENTER,
41  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_BACK_CENTER,
42  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_LOW_FREQUENCY|AV_CH_BACK_CENTER,
43  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_BACK_CENTER,
44  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_BACK_CENTER,
45  AV_CH_FRONT_CENTER|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT,
46  AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT,
47  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT,
48  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_LOW_FREQUENCY|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT,
49  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT,
50  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT,
51  AV_CH_FRONT_CENTER|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT,
52  AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT,
53  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT,
54  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_LOW_FREQUENCY|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT,
55  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT,
56  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT,
57  AV_CH_FRONT_CENTER|AV_CH_BACK_CENTER|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT,
58  AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_BACK_CENTER|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT,
59  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_BACK_CENTER|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT,
60  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_LOW_FREQUENCY|AV_CH_BACK_CENTER|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT,
61  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_BACK_CENTER|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT,
62  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_BACK_CENTER|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT,
63  AV_CH_FRONT_CENTER|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT,
64  AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT,
65  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT,
66  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_LOW_FREQUENCY|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT,
67  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT,
68  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT,
69  AV_CH_FRONT_CENTER|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT,
70  AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT,
71  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT,
72  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_LOW_FREQUENCY|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT,
73  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT,
74  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT,
75  AV_CH_FRONT_CENTER|AV_CH_BACK_CENTER|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT,
76  AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_BACK_CENTER|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT,
77  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_BACK_CENTER|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT,
78  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_LOW_FREQUENCY|AV_CH_BACK_CENTER|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT,
79  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_BACK_CENTER|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT,
80  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_BACK_CENTER|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT,
81  AV_CH_FRONT_CENTER|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT,
82  AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT,
83  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT,
84  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_LOW_FREQUENCY|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT,
85  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT,
86  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT,
87  AV_CH_FRONT_CENTER|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT,
88  AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT,
89  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT,
90  AV_CH_FRONT_CENTER|AV_CH_BACK_CENTER|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT,
91  AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_BACK_CENTER|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT,
92  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_BACK_CENTER|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT,
93  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_LOW_FREQUENCY|AV_CH_BACK_CENTER|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT,
94  AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_BACK_CENTER|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT,
95  -1
96 };
97 
98 int main(void)
99 {
100  AVChannelLayout layout = { 0 };
101  const int64_t *cl;
102  char buf[512];
103  int i;
104  const char *teststrings[] ={
105  "blah",
106  "1",
107  "2",
108  "-1",
109  "60",
110  "65",
111  "1c",
112  "2c",
113  "-1c",
114  "60c",
115  "65c",
116  "2C",
117  "60C",
118  "65C",
119  "5.1",
120  "stereo",
121  "1+1+1+1",
122  "1c+1c+1c+1c",
123  "2c+1c",
124  "0x3",
125  };
126 
127  for (cl = avfilter_all_channel_layouts; *cl != -1; cl++) {
128  av_channel_layout_from_mask(&layout, *cl);
129  av_channel_layout_describe(&layout, buf, sizeof(buf));
130  printf("%s\n", buf);
131  av_channel_layout_uninit(&layout);
132  }
133 
134  for ( i = 0; i<FF_ARRAY_ELEMS(teststrings); i++) {
135  int count = -1;
136  int ret;
137  av_channel_layout_uninit(&layout);
138  ret = ff_parse_channel_layout(&layout, &count, teststrings[i], NULL);
139 
140  printf ("%d = ff_parse_channel_layout(%016"PRIX64", %2d, %s);\n", ret ? -1 : 0, layout.order == AV_CHANNEL_ORDER_NATIVE ? layout.u.mask : 0, count, teststrings[i]);
141  }
142 
143  return 0;
144 }
AV_CH_BACK_LEFT
#define AV_CH_BACK_LEFT
Definition: channel_layout.h:162
FF_ARRAY_ELEMS
#define FF_ARRAY_ELEMS(a)
Definition: sinewin_tablegen.c:29
AV_CHANNEL_ORDER_NATIVE
@ AV_CHANNEL_ORDER_NATIVE
The native channel order, i.e.
Definition: channel_layout.h:112
AV_CH_LOW_FREQUENCY
#define AV_CH_LOW_FREQUENCY
Definition: channel_layout.h:161
avfilter_all_channel_layouts
const int64_t avfilter_all_channel_layouts[]
Definition: formats.c:26
AV_CH_STEREO_RIGHT
#define AV_CH_STEREO_RIGHT
Definition: channel_layout.h:177
NULL
#define NULL
Definition: coverity.c:32
main
int main(void)
Definition: formats.c:98
AV_CH_FRONT_CENTER
#define AV_CH_FRONT_CENTER
Definition: channel_layout.h:160
av_channel_layout_uninit
void av_channel_layout_uninit(AVChannelLayout *channel_layout)
Free any allocated data in the channel layout and reset the channel count to 0.
Definition: channel_layout.c:630
AVChannelLayout
An AVChannelLayout holds information about the channel layout of audio data.
Definition: channel_layout.h:290
ff_parse_channel_layout
int ff_parse_channel_layout(AVChannelLayout *ret, int *nret, const char *arg, void *log_ctx)
Parse a channel layout or a corresponding integer representation.
Definition: formats.c:839
printf
printf("static const uint8_t my_array[100] = {\n")
layout
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel layout
Definition: filter_design.txt:18
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:269
AV_CH_BACK_CENTER
#define AV_CH_BACK_CENTER
Definition: channel_layout.h:166
AV_CH_FRONT_LEFT
#define AV_CH_FRONT_LEFT
Definition: channel_layout.h:158
AV_CH_SIDE_RIGHT
#define AV_CH_SIDE_RIGHT
Definition: channel_layout.h:168
av_channel_layout_from_mask
FF_ENABLE_DEPRECATION_WARNINGS int av_channel_layout_from_mask(AVChannelLayout *channel_layout, uint64_t mask)
Initialize a native channel layout from a bitmask indicating which channels are present.
Definition: channel_layout.c:389
ret
ret
Definition: filter_design.txt:187
channel_layout.h
av_channel_layout_describe
int av_channel_layout_describe(const AVChannelLayout *channel_layout, char *buf, size_t buf_size)
Get a human-readable string describing the channel layout properties.
Definition: channel_layout.c:776
AV_CH_FRONT_RIGHT
#define AV_CH_FRONT_RIGHT
Definition: channel_layout.h:159
formats.c
AV_CH_BACK_RIGHT
#define AV_CH_BACK_RIGHT
Definition: channel_layout.h:163
AV_CH_STEREO_LEFT
#define AV_CH_STEREO_LEFT
Definition: channel_layout.h:176
AV_CH_SIDE_LEFT
#define AV_CH_SIDE_LEFT
Definition: channel_layout.h:167
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