FFmpeg  4.4
film_grain_params.c
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1 /**
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #include "film_grain_params.h"
20 
22 {
24 
25  if (size)
26  *size = sizeof(*params);
27 
28  return params;
29 }
30 
32 {
35  sizeof(AVFilmGrainParams));
36  if (!side_data)
37  return NULL;
38 
39  memset(side_data->data, 0, sizeof(AVFilmGrainParams));
40 
41  return (AVFilmGrainParams *)side_data->data;
42 }
#define NULL
Definition: coverity.c:32
static AVFrame * frame
AVFilmGrainParams * av_film_grain_params_create_side_data(AVFrame *frame)
Allocate a complete AVFilmGrainParams and add it to the frame.
AVFilmGrainParams * av_film_grain_params_alloc(size_t *size)
This file is part of FFmpeg.
AVFrameSideData * av_frame_new_side_data(AVFrame *frame, enum AVFrameSideDataType type, buffer_size_t size)
Add a new side data to a frame.
Definition: frame.c:726
@ AV_FRAME_DATA_FILM_GRAIN_PARAMS
Film grain parameters for a frame, described by AVFilmGrainParams.
Definition: frame.h:200
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
This structure describes how to handle film grain synthesis in video for specific codecs.
Structure to hold side data for an AVFrame.
Definition: frame.h:220
uint8_t * data
Definition: frame.h:222
This structure describes decoded (raw) audio or video data.
Definition: frame.h:318
int size