libavutil/tests/side_data_array.c

   1 /*
   2  * Copyright (c) 2023 Jan Ekström <jeebjp@gmail.com>
   3  *
   4  * This file is part of FFmpeg.
   5  *
   6  * FFmpeg is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * FFmpeg is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with FFmpeg; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  19  */
  20
  21 #include <stdio.h>
  22 #include "libavutil/frame.c"
  23 #include "libavutil/internal.h"
  24
  25 static void print_entries(const AVFrameSideData **sd, const int nb_sd)
  26 {
  27     for (int i = 0; i < nb_sd; i++) {
  28         const AVFrameSideData *entry = sd[i];
  29
  30         printf("sd %d (size %"SIZE_SPECIFIER"), %s",
  31                i, entry->size, av_frame_side_data_name(entry->type));
  32
  33         if (entry->type != AV_FRAME_DATA_SEI_UNREGISTERED) {
  34             putchar('\n');
  35             continue;
  36         }
  37
  38         printf(": %d\n", *(int32_t *)entry->data);
  39     }
  40 }
  41
  42 typedef struct FrameSideDataSet {
  43     AVFrameSideData **sd;
  44     int            nb_sd;
  45 } FrameSideDataSet;
  46
  47 int main(void)
  48 {
  49     FrameSideDataSet set = { 0 };
  50
  51     av_assert0(
  52         av_frame_side_data_new(&set.sd, &set.nb_sd,
  53                                AV_FRAME_DATA_CONTENT_LIGHT_LEVEL,
  54                                sizeof(int64_t), 0));
  55     av_assert0(
  56         av_frame_side_data_new(&set.sd, &set.nb_sd,
  57                                AV_FRAME_DATA_CONTENT_LIGHT_LEVEL,
  58                                sizeof(int32_t), AV_FRAME_SIDE_DATA_FLAG_REPLACE));
  59
  60     // test entries in the middle
  61     for (int value = 1; value < 4; value++) {
  62         AVFrameSideData *sd = av_frame_side_data_new(
  63             &set.sd, &set.nb_sd, AV_FRAME_DATA_SEI_UNREGISTERED,
  64             sizeof(int32_t), 0);
  65
  66         av_assert0(sd);
  67
  68         *(int32_t *)sd->data = value;
  69     }
  70
  71     av_assert0(
  72         av_frame_side_data_new(
  73             &set.sd, &set.nb_sd, AV_FRAME_DATA_SPHERICAL,
  74            sizeof(int64_t), 0));
  75
  76     av_assert0(
  77         av_frame_side_data_new(
  78             &set.sd, &set.nb_sd, AV_FRAME_DATA_SPHERICAL,
  79             sizeof(int32_t), AV_FRAME_SIDE_DATA_FLAG_REPLACE));
  80
  81     // test entries at the end
  82     for (int value = 1; value < 4; value++) {
  83         AVFrameSideData *sd = av_frame_side_data_new(
  84             &set.sd, &set.nb_sd, AV_FRAME_DATA_SEI_UNREGISTERED,
  85             sizeof(int32_t), 0);
  86
  87         av_assert0(sd);
  88
  89         *(int32_t *)sd->data = value + 3;
  90     }
  91
  92     puts("Initial addition results with duplicates:");
  93     print_entries((const AVFrameSideData **)set.sd, set.nb_sd);
  94
  95     {
  96         AVFrameSideData *sd = av_frame_side_data_new(
  97             &set.sd, &set.nb_sd, AV_FRAME_DATA_SEI_UNREGISTERED,
  98             sizeof(int32_t), AV_FRAME_SIDE_DATA_FLAG_UNIQUE);
  99
 100         av_assert0(sd);
 101
 102         *(int32_t *)sd->data = 1337;
 103     }
 104
 105     puts("\nFinal state after a single 'no-duplicates' addition:");
 106     print_entries((const AVFrameSideData **)set.sd, set.nb_sd);
 107
 108     av_frame_side_data_free(&set.sd, &set.nb_sd);
 109
 110     return 0;
 111 }