Libav
af_anull.c
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1 /*
2  * This file is part of Libav.
3  *
4  * Libav is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * Libav is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with Libav; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
24 #include "audio.h"
25 #include "avfilter.h"
26 #include "internal.h"
27 #include "libavutil/internal.h"
28 
30  {
31  .name = "default",
32  .type = AVMEDIA_TYPE_AUDIO,
33  .get_audio_buffer = ff_null_get_audio_buffer,
34  },
35  { NULL }
36 };
37 
39  {
40  .name = "default",
41  .type = AVMEDIA_TYPE_AUDIO,
42  },
43  { NULL }
44 };
45 
47  .name = "anull",
48  .description = NULL_IF_CONFIG_SMALL("Pass the source unchanged to the output."),
49 
50  .priv_size = 0,
51 
52  .inputs = avfilter_af_anull_inputs,
53 
54  .outputs = avfilter_af_anull_outputs,
55 };
Main libavfilter public API header.
const char * name
Pad name.
Definition: internal.h:42
static const AVFilterPad avfilter_af_anull_outputs[]
Definition: af_anull.c:38
A filter pad used for either input or output.
Definition: internal.h:36
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:142
common internal API header
AVFrame * ff_null_get_audio_buffer(AVFilterLink *link, int nb_samples)
get_audio_buffer() handler for filters which simply pass audio along
Definition: audio.c:26
NULL
Definition: eval.c:55
Filter definition.
Definition: avfilter.h:421
const char * name
Filter name.
Definition: avfilter.h:425
static const AVFilterPad avfilter_af_anull_inputs[]
Definition: af_anull.c:29
AVFilter ff_af_anull
Definition: af_anull.c:46
internal API functions