media/ffvpx/libavutil/mastering_display_metadata.c

   1 /**
   2  * Copyright (c) 2016 Neil Birkbeck <neil.birkbeck@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 <stdint.h>
  22 #include <string.h>
  23
  24 #include "mastering_display_metadata.h"
  25 #include "mem.h"
  26
  27 AVMasteringDisplayMetadata *av_mastering_display_metadata_alloc(void)
  28 {
  29     return av_mallocz(sizeof(AVMasteringDisplayMetadata));
  30 }
  31
  32 AVMasteringDisplayMetadata *av_mastering_display_metadata_create_side_data(AVFrame *frame)
  33 {
  34     AVFrameSideData *side_data = av_frame_new_side_data(frame,
  35                                                         AV_FRAME_DATA_MASTERING_DISPLAY_METADATA,
  36                                                         sizeof(AVMasteringDisplayMetadata));
  37     if (!side_data)
  38         return NULL;
  39
  40     memset(side_data->data, 0, sizeof(AVMasteringDisplayMetadata));
  41
  42     return (AVMasteringDisplayMetadata *)side_data->data;
  43 }
  44
  45 AVContentLightMetadata *av_content_light_metadata_alloc(size_t *size)
  46 {
  47     AVContentLightMetadata *metadata = av_mallocz(sizeof(AVContentLightMetadata));
  48
  49     if (size)
  50         *size = sizeof(*metadata);
  51
  52     return metadata;
  53 }
  54
  55 AVContentLightMetadata *av_content_light_metadata_create_side_data(AVFrame *frame)
  56 {
  57     AVFrameSideData *side_data = av_frame_new_side_data(frame,
  58                                                         AV_FRAME_DATA_CONTENT_LIGHT_LEVEL,
  59                                                         sizeof(AVContentLightMetadata));
  60     if (!side_data)
  61         return NULL;
  62
  63     memset(side_data->data, 0, sizeof(AVContentLightMetadata));
  64
  65     return (AVContentLightMetadata *)side_data->data;
  66 }