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/**
* Copyright (c) 2016 Neil Birkbeck <neil.birkbeck@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 <stddef.h>
#include <stdint.h>
#include <string.h>
#include "mastering_display_metadata.h"
#include "mem.h"
static void get_defaults(AVMasteringDisplayMetadata *mastering)
{
for (int i = 0; i < 3; i++)
for (int j = 0; j < 2; j++)
mastering->display_primaries[i][j] = (AVRational) { 0, 1 };
mastering->white_point[0] =
mastering->white_point[1] =
mastering->min_luminance =
mastering->max_luminance = (AVRational) { 0, 1 };
}
AVMasteringDisplayMetadata *av_mastering_display_metadata_alloc(void)
{
return av_mastering_display_metadata_alloc_size(NULL);
}
AVMasteringDisplayMetadata *av_mastering_display_metadata_alloc_size(size_t *size)
{
AVMasteringDisplayMetadata *mastering = av_mallocz(sizeof(AVMasteringDisplayMetadata));
if (!mastering)
return NULL;
get_defaults(mastering);
if (size)
*size = sizeof(*mastering);
return mastering;
}
AVMasteringDisplayMetadata *av_mastering_display_metadata_create_side_data(AVFrame *frame)
{
AVFrameSideData *side_data = av_frame_new_side_data(frame,
AV_FRAME_DATA_MASTERING_DISPLAY_METADATA,
sizeof(AVMasteringDisplayMetadata));
if (!side_data)
return NULL;
memset(side_data->data, 0, sizeof(AVMasteringDisplayMetadata));
get_defaults((AVMasteringDisplayMetadata *)side_data->data);
return (AVMasteringDisplayMetadata *)side_data->data;
}
AVContentLightMetadata *av_content_light_metadata_alloc(size_t *size)
{
AVContentLightMetadata *metadata = av_mallocz(sizeof(AVContentLightMetadata));
if (size)
*size = sizeof(*metadata);
return metadata;
}
AVContentLightMetadata *av_content_light_metadata_create_side_data(AVFrame *frame)
{
AVFrameSideData *side_data = av_frame_new_side_data(frame,
AV_FRAME_DATA_CONTENT_LIGHT_LEVEL,
sizeof(AVContentLightMetadata));
if (!side_data)
return NULL;
memset(side_data->data, 0, sizeof(AVContentLightMetadata));
return (AVContentLightMetadata *)side_data->data;
}
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