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ffmpeg/libavutil/hdr_dynamic_metadata.c
Mohammad Izadi 2744d6b364 Add HDR dynamic metadata struct (for SMPTE 2094-40) to libavutil
The dynamic metadata contains data for color volume transform -
application 4 of SMPTE 2094-40:2016 standard. The data comes from
HEVC in the SEI_TYPE_USER_DATA_REGISTERED_ITU_T_T35.

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
2018-12-21 17:52:00 +01:00

48 lines
1.5 KiB
C

/**
* Copyright (c) 2018 Mohammad Izadi <moh.izadi at gmail.com>
*
* 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 "hdr_dynamic_metadata.h"
#include "mem.h"
AVDynamicHDRPlus *av_dynamic_hdr_plus_alloc(size_t *size)
{
AVDynamicHDRPlus *hdr_plus = av_mallocz(sizeof(AVDynamicHDRPlus));
if (!hdr_plus)
return NULL;
if (size)
*size = sizeof(*hdr_plus);
return hdr_plus;
}
AVDynamicHDRPlus *av_dynamic_hdr_plus_create_side_data(AVFrame *frame)
{
AVFrameSideData *side_data = av_frame_new_side_data(frame,
AV_FRAME_DATA_DYNAMIC_HDR_PLUS,
sizeof(AVDynamicHDRPlus));
if (!side_data)
return NULL;
memset(side_data->data, 0, sizeof(AVDynamicHDRPlus));
return (AVDynamicHDRPlus *)side_data->data;
}