FFmpeg  4.3.6
hdr_dynamic_metadata.c
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1 /**
2  * Copyright (c) 2018 Mohammad Izadi <moh.izadi at 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 "hdr_dynamic_metadata.h"
22 #include "mem.h"
23 
25 {
26  AVDynamicHDRPlus *hdr_plus = av_mallocz(sizeof(AVDynamicHDRPlus));
27  if (!hdr_plus)
28  return NULL;
29 
30  if (size)
31  *size = sizeof(*hdr_plus);
32 
33  return hdr_plus;
34 }
35 
37 {
38  AVFrameSideData *side_data = av_frame_new_side_data(frame,
40  sizeof(AVDynamicHDRPlus));
41  if (!side_data)
42  return NULL;
43 
44  memset(side_data->data, 0, sizeof(AVDynamicHDRPlus));
45 
46  return (AVDynamicHDRPlus *)side_data->data;
47 }
#define NULL
Definition: coverity.c:32
int size
This structure describes decoded (raw) audio or video data.
Definition: frame.h:300
This struct represents dynamic metadata for color volume transform - application 4 of SMPTE 2094-40:2...
Memory handling functions.
AVDynamicHDRPlus * av_dynamic_hdr_plus_alloc(size_t *size)
Copyright (c) 2018 Mohammad Izadi <moh.izadi at gmail.com>
HDR dynamic metadata associated with a video frame.
Definition: frame.h:175
static AVFrame * frame
Structure to hold side data for an AVFrame.
Definition: frame.h:206
AVDynamicHDRPlus * av_dynamic_hdr_plus_create_side_data(AVFrame *frame)
Allocate a complete AVDynamicHDRPlus and add it to the frame.
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:237
uint8_t * data
Definition: frame.h:208
AVFrameSideData * av_frame_new_side_data(AVFrame *frame, enum AVFrameSideDataType type, int size)
Add a new side data to a frame.
Definition: frame.c:727