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/*
* Copyright (c) 2023 Jan Ekström <jeebjp@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 <stdio.h>
#include "libavutil/frame.c"
#include "libavutil/mastering_display_metadata.h"
static void print_clls(const AVFrameSideData **sd, const int nb_sd)
{
for (int i = 0; i < nb_sd; i++) {
const AVFrameSideData *entry = sd[i];
printf("sd %d, %s",
i, av_frame_side_data_name(entry->type));
if (entry->type != AV_FRAME_DATA_CONTENT_LIGHT_LEVEL) {
putchar('\n');
continue;
}
printf(": MaxCLL: %u\n",
((AVContentLightMetadata *)entry->data)->MaxCLL);
}
}
typedef struct FrameSideDataSet {
AVFrameSideData **sd;
int nb_sd;
} FrameSideDataSet;
int main(void)
{
FrameSideDataSet set = { 0 };
av_assert0(
av_frame_side_data_new(&set.sd, &set.nb_sd,
AV_FRAME_DATA_AMBIENT_VIEWING_ENVIRONMENT,
0, 0));
// test entries in the middle
for (int value = 1; value < 4; value++) {
AVFrameSideData *sd = av_frame_side_data_new(
&set.sd, &set.nb_sd, AV_FRAME_DATA_CONTENT_LIGHT_LEVEL,
sizeof(AVContentLightMetadata), 0);
av_assert0(sd);
((AVContentLightMetadata *)sd->data)->MaxCLL = value;
}
av_assert0(
av_frame_side_data_new(
&set.sd, &set.nb_sd, AV_FRAME_DATA_SPHERICAL, 0, 0));
// test entries at the end
for (int value = 1; value < 4; value++) {
AVFrameSideData *sd = av_frame_side_data_new(
&set.sd, &set.nb_sd, AV_FRAME_DATA_CONTENT_LIGHT_LEVEL,
sizeof(AVContentLightMetadata), 0);
av_assert0(sd);
((AVContentLightMetadata *)sd->data)->MaxCLL = value + 3;
}
puts("Initial addition results with duplicates:");
print_clls((const AVFrameSideData **)set.sd, set.nb_sd);
{
AVFrameSideData *sd = av_frame_side_data_new(
&set.sd, &set.nb_sd, AV_FRAME_DATA_CONTENT_LIGHT_LEVEL,
sizeof(AVContentLightMetadata),
AV_FRAME_SIDE_DATA_FLAG_UNIQUE);
av_assert0(sd);
((AVContentLightMetadata *)sd->data)->MaxCLL = 1337;
}
puts("\nFinal state after a single 'no-duplicates' addition:");
print_clls((const AVFrameSideData **)set.sd, set.nb_sd);
av_frame_side_data_free(&set.sd, &set.nb_sd);
return 0;
}
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