libavfilter/asink_anullsink.c

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This source file includes following definitions.

null_filter_frame

/*
 * Copyright (c) 2010 S.N. Hemanth Meenakshisundaram <smeenaks@ucsd.edu>
 *
 * This file is part of FFmpeg.
 *
 * FFmpeg is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * FFmpeg is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include "libavutil/internal.h"
#include "avfilter.h"
#include "internal.h"

static int null_filter_frame(AVFilterLink *link, AVFrame *frame)
{
    av_frame_free(&frame);
    return 0;
}

static const AVFilterPad avfilter_asink_anullsink_inputs[] = {
    {
        .name           = "default",
        .type           = AVMEDIA_TYPE_AUDIO,
        .filter_frame   = null_filter_frame,
    },
    { NULL },
};

AVFilter ff_asink_anullsink = {
    .name        = "anullsink",
    .description = NULL_IF_CONFIG_SMALL("Do absolutely nothing with the input audio."),
    .priv_size   = 0,
    .inputs      = avfilter_asink_anullsink_inputs,
    .outputs     = NULL,
};

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root/libavfilter/asink_anullsink.c

DEFINITIONS