mirror of https://git.ffmpeg.org/ffmpeg.git
104 lines
3.1 KiB
C
104 lines
3.1 KiB
C
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/*
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* Copyright (c) 2023 Jan Ekström <jeebjp@gmail.com>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <stdio.h>
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#include "libavutil/frame.c"
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#include "libavutil/mastering_display_metadata.h"
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static void print_clls(const AVFrameSideData **sd, const int nb_sd)
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{
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for (int i = 0; i < nb_sd; i++) {
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const AVFrameSideData *entry = sd[i];
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printf("sd %d, %s",
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i, av_frame_side_data_name(entry->type));
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if (entry->type != AV_FRAME_DATA_CONTENT_LIGHT_LEVEL) {
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putchar('\n');
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continue;
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}
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printf(": MaxCLL: %u\n",
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((AVContentLightMetadata *)entry->data)->MaxCLL);
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}
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}
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typedef struct FrameSideDataSet {
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AVFrameSideData **sd;
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int nb_sd;
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} FrameSideDataSet;
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int main(void)
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{
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FrameSideDataSet set = { 0 };
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av_assert0(
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av_frame_side_data_new(&set.sd, &set.nb_sd,
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AV_FRAME_DATA_AMBIENT_VIEWING_ENVIRONMENT,
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0, 0));
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// test entries in the middle
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for (int value = 1; value < 4; value++) {
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AVFrameSideData *sd = av_frame_side_data_new(
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&set.sd, &set.nb_sd, AV_FRAME_DATA_CONTENT_LIGHT_LEVEL,
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sizeof(AVContentLightMetadata), 0);
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av_assert0(sd);
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((AVContentLightMetadata *)sd->data)->MaxCLL = value;
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}
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av_assert0(
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av_frame_side_data_new(
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&set.sd, &set.nb_sd, AV_FRAME_DATA_SPHERICAL, 0, 0));
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// test entries at the end
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for (int value = 1; value < 4; value++) {
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AVFrameSideData *sd = av_frame_side_data_new(
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&set.sd, &set.nb_sd, AV_FRAME_DATA_CONTENT_LIGHT_LEVEL,
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sizeof(AVContentLightMetadata), 0);
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av_assert0(sd);
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((AVContentLightMetadata *)sd->data)->MaxCLL = value + 3;
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}
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puts("Initial addition results with duplicates:");
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print_clls((const AVFrameSideData **)set.sd, set.nb_sd);
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{
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AVFrameSideData *sd = av_frame_side_data_new(
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&set.sd, &set.nb_sd, AV_FRAME_DATA_CONTENT_LIGHT_LEVEL,
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sizeof(AVContentLightMetadata),
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AV_FRAME_SIDE_DATA_FLAG_UNIQUE);
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av_assert0(sd);
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((AVContentLightMetadata *)sd->data)->MaxCLL = 1337;
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}
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puts("\nFinal state after a single 'no-duplicates' addition:");
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print_clls((const AVFrameSideData **)set.sd, set.nb_sd);
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av_frame_side_data_free(&set.sd, &set.nb_sd);
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return 0;
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}
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