pngdec: decode and expose iCCP chunks as side data
[ffmpeg.git] / libavcodec / avpicture.c
1 /*
2  * AVPicture management routines
3  * Copyright (c) 2001, 2002, 2003 Fabrice Bellard
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21
22 /**
23  * @file
24  * AVPicture management routines
25  */
26
27 #include "avcodec.h"
28 #include "internal.h"
29 #include "libavutil/common.h"
30 #include "libavutil/pixdesc.h"
31 #include "libavutil/imgutils.h"
32 #include "libavutil/internal.h"
33 #include "libavutil/colorspace.h"
34
35 #if FF_API_AVPICTURE
36 FF_DISABLE_DEPRECATION_WARNINGS
37 int avpicture_fill(AVPicture *picture, const uint8_t *ptr,
38                    enum AVPixelFormat pix_fmt, int width, int height)
39 {
40     return av_image_fill_arrays(picture->data, picture->linesize,
41                                 ptr, pix_fmt, width, height, 1);
42 }
43
44 int avpicture_layout(const AVPicture* src, enum AVPixelFormat pix_fmt, int width, int height,
45                      unsigned char *dest, int dest_size)
46 {
47     return av_image_copy_to_buffer(dest, dest_size,
48                                    (const uint8_t * const*)src->data, src->linesize,
49                                    pix_fmt, width, height, 1);
50 }
51
52 int avpicture_get_size(enum AVPixelFormat pix_fmt, int width, int height)
53 {
54     return av_image_get_buffer_size(pix_fmt, width, height, 1);
55 }
56
57 int avpicture_alloc(AVPicture *picture,
58                     enum AVPixelFormat pix_fmt, int width, int height)
59 {
60     int ret = av_image_alloc(picture->data, picture->linesize,
61                              width, height, pix_fmt, 1);
62     if (ret < 0) {
63         memset(picture, 0, sizeof(AVPicture));
64         return ret;
65     }
66
67     return 0;
68 }
69
70 void avpicture_free(AVPicture *picture)
71 {
72     av_freep(&picture->data[0]);
73 }
74
75 void av_picture_copy(AVPicture *dst, const AVPicture *src,
76                      enum AVPixelFormat pix_fmt, int width, int height)
77 {
78     av_image_copy(dst->data, dst->linesize, (const uint8_t **)src->data,
79                   src->linesize, pix_fmt, width, height);
80 }
81 FF_ENABLE_DEPRECATION_WARNINGS
82 #endif /* FF_API_AVPICTURE */