FFmpeg
formats.c
Go to the documentation of this file.
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 "libavfilter/formats.c"
22 
23 #undef printf
24 
25 const int64_t avfilter_all_channel_layouts[] = {
94  -1
95 };
96 
97 int main(void)
98 {
99  const int64_t *cl;
100  char buf[512];
101  int i;
102  const char *teststrings[] ={
103  "blah",
104  "1",
105  "2",
106  "-1",
107  "60",
108  "65",
109  "1c",
110  "2c",
111  "-1c",
112  "60c",
113  "65c",
114  "2C",
115  "60C",
116  "65C",
117  "5.1",
118  "stereo",
119  "1+1+1+1",
120  "1c+1c+1c+1c",
121  "2c+1c",
122  "0x3",
123  };
124 
125  for (cl = avfilter_all_channel_layouts; *cl != -1; cl++) {
126  av_get_channel_layout_string(buf, sizeof(buf), -1, *cl);
127  printf("%s\n", buf);
128  }
129 
130  for ( i = 0; i<FF_ARRAY_ELEMS(teststrings); i++) {
131  int64_t layout = -1;
132  int count = -1;
133  int ret;
134  ret = ff_parse_channel_layout(&layout, &count, teststrings[i], NULL);
135 
136  printf ("%d = ff_parse_channel_layout(%016"PRIX64", %2d, %s);\n", ret ? -1 : 0, layout, count, teststrings[i]);
137  }
138 
139  return 0;
140 }
#define NULL
Definition: coverity.c:32
#define AV_CH_LOW_FREQUENCY
#define AV_CH_BACK_LEFT
int ff_parse_channel_layout(int64_t *ret, int *nret, const char *arg, void *log_ctx)
Parse a channel layout or a corresponding integer representation.
Definition: formats.c:694
GLsizei count
Definition: opengl_enc.c:108
#define AV_CH_STEREO_RIGHT
See AV_CH_STEREO_LEFT.
#define AV_CH_FRONT_CENTER
#define FF_ARRAY_ELEMS(a)
void av_get_channel_layout_string(char *buf, int buf_size, int nb_channels, uint64_t channel_layout)
Return a description of a channel layout.
#define AV_CH_FRONT_LEFT
int main(void)
Definition: formats.c:97
const int64_t avfilter_all_channel_layouts[]
Definition: formats.c:25
#define AV_CH_BACK_CENTER
#define AV_CH_SIDE_RIGHT
printf("static const uint8_t my_array[100] = {\n")
#define AV_CH_FRONT_RIGHT
#define AV_CH_SIDE_LEFT
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
int i
Definition: input.c:406
#define AV_CH_BACK_RIGHT
#define AV_CH_STEREO_LEFT
Stereo downmix.