FFmpeg
libavfilter
af_anull.c
Go to the documentation of this file.
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/*
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* Copyright (c) 2010 S.N. Hemanth Meenakshisundaram <smeenaks@ucsd.edu>
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* null audio filter
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*/
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#include "
audio.h
"
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#include "
avfilter.h
"
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#include "
filters.h
"
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#include "
libavutil/internal.h
"
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const
AVFilter
ff_af_anull
= {
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.
name
=
"anull"
,
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.description =
NULL_IF_CONFIG_SMALL
(
"Pass the source unchanged to the output."
),
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.flags =
AVFILTER_FLAG_METADATA_ONLY
,
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FILTER_INPUTS
(
ff_audio_default_filterpad
),
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FILTER_OUTPUTS
(
ff_audio_default_filterpad
),
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};
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition:
filters.h:262
AVFilter::name
const char * name
Filter name.
Definition:
avfilter.h:205
filters.h
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition:
filters.h:263
ff_af_anull
const AVFilter ff_af_anull
Definition:
af_anull.c:30
ff_audio_default_filterpad
const AVFilterPad ff_audio_default_filterpad[1]
An AVFilterPad array whose only entry has name "default" and is of type AVMEDIA_TYPE_AUDIO.
Definition:
audio.c:34
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition:
internal.h:94
internal.h
AVFilter
Filter definition.
Definition:
avfilter.h:201
avfilter.h
AVFILTER_FLAG_METADATA_ONLY
#define AVFILTER_FLAG_METADATA_ONLY
The filter is a "metadata" filter - it does not modify the frame data in any way.
Definition:
avfilter.h:168
audio.h
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