vsink_nullsink.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 
19 #include "avfilter.h"
20 #include "internal.h"
21 #include "libavutil/internal.h"
22 
23 static int filter_frame(AVFilterLink *link, AVFilterBufferRef *frame)
24 {
25  avfilter_unref_bufferp(&frame);
26  return 0;
27 }
28 
30  {
31  .name = "default",
32  .type = AVMEDIA_TYPE_VIDEO,
33  .filter_frame = filter_frame,
34  },
35  { NULL },
36 };
37 
39  .name = "nullsink",
40  .description = NULL_IF_CONFIG_SMALL("Do absolutely nothing with the input video."),
41 
42  .priv_size = 0,
43 
45  .outputs = NULL,
46 };
const char * name
Pad name.
Definition: internal.h:39
void avfilter_unref_bufferp(AVFilterBufferRef **ref)
Remove a reference to a buffer and set the pointer to NULL.
Definition: buffer.c:88
AVFilter avfilter_vsink_nullsink
A filter pad used for either input or output.
Definition: internal.h:33
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:88
common internal API header
A reference to an AVFilterBuffer.
Definition: avfilter.h:139
NULL
Definition: eval.c:52
Filter definition.
Definition: avfilter.h:371
const char * name
filter name
Definition: avfilter.h:372
static const AVFilterPad avfilter_vsink_nullsink_inputs[]
static int filter_frame(AVFilterLink *link, AVFilterBufferRef *frame)
internal API functions