1 /*
2 * Copyright (c) 2010 S.N. Hemanth Meenakshisundaram <smeenaks@ucsd.edu>
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/internal.h"
22 #include "avfilter.h"
23 #include "internal.h"
24
null_filter_frame(AVFilterLink * link,AVFrame * frame)25 static int null_filter_frame(AVFilterLink *link, AVFrame *frame)
26 {
27 av_frame_free(&frame);
28 return 0;
29 }
30
31 static const AVFilterPad avfilter_asink_anullsink_inputs[] = {
32 {
33 .name = "default",
34 .type = AVMEDIA_TYPE_AUDIO,
35 .filter_frame = null_filter_frame,
36 },
37 { NULL },
38 };
39
40 AVFilter ff_asink_anullsink = {
41 .name = "anullsink",
42 .description = NULL_IF_CONFIG_SMALL("Do absolutely nothing with the input audio."),
43 .priv_size = 0,
44 .inputs = avfilter_asink_anullsink_inputs,
45 .outputs = NULL,
46 };
47