6bde0f84457056781e148a35396cd7728cdd3f73
[libav.git] / libavcodec / avpicture.c
1 /*
2 * AVPicture management routines
3 * Copyright (c) 2001, 2002, 2003 Fabrice Bellard
4 *
5 * This file is part of Libav.
6 *
7 * Libav 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 * Libav 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 Libav; 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/colorspace.h"
33
34 int avpicture_fill(AVPicture *picture, uint8_t *ptr,
35 enum AVPixelFormat pix_fmt, int width, int height)
36 {
37 return av_image_fill_arrays(picture->data, picture->linesize,
38 ptr, pix_fmt, width, height, 1);
39 }
40
41 int avpicture_layout(const AVPicture* src, enum AVPixelFormat pix_fmt,
42 int width, int height,
43 unsigned char *dest, int dest_size)
44 {
45 return av_image_copy_to_buffer(dest, dest_size,
46 src->data, src->linesize,
47 pix_fmt, width, height, 1);
48 }
49
50 int avpicture_get_size(enum AVPixelFormat pix_fmt, int width, int height)
51 {
52 return av_image_get_buffer_size(pix_fmt, width, height, 1);
53 }
54
55 int avpicture_alloc(AVPicture *picture,
56 enum AVPixelFormat pix_fmt, int width, int height)
57 {
58 int ret = av_image_alloc(picture->data, picture->linesize,
59 width, height, pix_fmt, 1);
60 if (ret < 0) {
61 memset(picture, 0, sizeof(AVPicture));
62 return ret;
63 }
64
65 return 0;
66 }
67
68 void avpicture_free(AVPicture *picture)
69 {
70 av_free(picture->data[0]);
71 }
72
73 void av_picture_copy(AVPicture *dst, const AVPicture *src,
74 enum AVPixelFormat pix_fmt, int width, int height)
75 {
76 av_image_copy(dst->data, dst->linesize, src->data,
77 src->linesize, pix_fmt, width, height);
78 }
79