mirror of https://git.ffmpeg.org/ffmpeg.git
94 lines
3.0 KiB
C
94 lines
3.0 KiB
C
/**
|
|
* 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;
|
|
}
|