libavfilter/vsink_nullsink.c

   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, AVFrame *frame)
  24 {
  25     av_frame_free(&frame);
  26     return 0;
  27 }
  28
  29 static const AVFilterPad avfilter_vsink_nullsink_inputs[] = {
  30     {
  31         .name        = "default",
  32         .type        = AVMEDIA_TYPE_VIDEO,
  33         .filter_frame = filter_frame,
  34     },
  35     { NULL },
  36 };
  37
  38 AVFilter avfilter_vsink_nullsink = {
  39     .name        = "nullsink",
  40     .description = NULL_IF_CONFIG_SMALL("Do absolutely nothing with the input video."),
  41
  42     .priv_size = 0,
  43
  44     .inputs    = avfilter_vsink_nullsink_inputs,
  45     .outputs   = NULL,
  46 };