1 /*
2 * Copyright (c) 2014 Tim Walker <tdskywalker@gmail.com>
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #include "downmix_info.h"
22 #include "frame.h"
23
av_downmix_info_update_side_data(AVFrame * frame)24 AVDownmixInfo *av_downmix_info_update_side_data(AVFrame *frame)
25 {
26 AVFrameSideData *side_data;
27
28 side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_DOWNMIX_INFO);
29
30 if (!side_data)
31 side_data = av_frame_new_side_data(frame, AV_FRAME_DATA_DOWNMIX_INFO,
32 sizeof(AVDownmixInfo));
33
34 if (!side_data)
35 return NULL;
36
37 return (AVDownmixInfo*)side_data->data;
38 }
39