Libav
asrc_anullsrc.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 <inttypes.h>
25 #include <stdio.h>
26 
28 #include "libavutil/internal.h"
29 #include "avfilter.h"
30 #include "internal.h"
31 
32 static int request_frame(AVFilterLink *link)
33 {
34  return AVERROR_EOF;
35 }
36 
38  {
39  .name = "default",
40  .type = AVMEDIA_TYPE_AUDIO,
41  .request_frame = request_frame,
42  },
43  { NULL }
44 };
45 
47  .name = "anullsrc",
48  .description = NULL_IF_CONFIG_SMALL("Null audio source, never return audio frames."),
49 
50  .inputs = NULL,
51 
53 };