FFmpeg
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af_anull.c
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1 /*
2  * Copyright (c) 2010 S.N. Hemanth Meenakshisundaram <smeenaks@ucsd.edu>
3  * This file is part of FFmpeg.
4  *
5  * FFmpeg is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU Lesser General Public
7  * License as published by the Free Software Foundation; either
8  * version 2.1 of the License, or (at your option) any later version.
9  *
10  * FFmpeg is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13  * Lesser General Public License for more details.
14  *
15  * You should have received a copy of the GNU Lesser General Public
16  * License along with FFmpeg; if not, write to the Free Software
17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
18  */
19 
20 /**
21  * @file
22  * null audio filter
23  */
24 
25 #include "audio.h"
26 #include "avfilter.h"
27 #include "internal.h"
28 #include "libavutil/internal.h"
29 
31  {
32  .name = "default",
33  .type = AVMEDIA_TYPE_AUDIO,
34  .get_audio_buffer = ff_null_get_audio_buffer,
35  },
36  { NULL }
37 };
38 
40  {
41  .name = "default",
42  .type = AVMEDIA_TYPE_AUDIO,
43  },
44  { NULL }
45 };
46 
48  .name = "anull",
49  .description = NULL_IF_CONFIG_SMALL("Pass the source unchanged to the output."),
50 
51  .priv_size = 0,
52 
53  .query_formats = ff_query_formats_all,
54 
55  .inputs = avfilter_af_anull_inputs,
56 
57  .outputs = avfilter_af_anull_outputs,
58 };