/*1* Copyright (c) 2010 S.N. Hemanth Meenakshisundaram <[email protected]>2* This file is part of FFmpeg.3*4* FFmpeg is free software; you can redistribute it and/or5* modify it under the terms of the GNU Lesser General Public6* License as published by the Free Software Foundation; either7* version 2.1 of the License, or (at your option) any later version.8*9* FFmpeg is distributed in the hope that it will be useful,10* but WITHOUT ANY WARRANTY; without even the implied warranty of11* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU12* Lesser General Public License for more details.13*14* You should have received a copy of the GNU Lesser General Public15* License along with FFmpeg; if not, write to the Free Software16* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA17*/1819/**20* @file21* null audio filter22*/2324#include "audio.h"25#include "avfilter.h"26#include "internal.h"27#include "libavutil/internal.h"2829static const AVFilterPad avfilter_af_anull_inputs[] = {30{31.name = "default",32.type = AVMEDIA_TYPE_AUDIO,33},34{ NULL }35};3637static const AVFilterPad avfilter_af_anull_outputs[] = {38{39.name = "default",40.type = AVMEDIA_TYPE_AUDIO,41},42{ NULL }43};4445AVFilter ff_af_anull = {46.name = "anull",47.description = NULL_IF_CONFIG_SMALL("Pass the source unchanged to the output."),48.query_formats = ff_query_formats_all,49.inputs = avfilter_af_anull_inputs,50.outputs = avfilter_af_anull_outputs,51};525354