xref: /third_party/ffmpeg/libavcodec/avpicture.c (revision cabdff1a) 
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
36FF_DISABLE_DEPRECATION_WARNINGS
37int 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
44int 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
52int 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
57int 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
70void avpicture_free(AVPicture *picture)
71{
72    av_freep(&picture->data[0]);
73}
74
75void 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}
81FF_ENABLE_DEPRECATION_WARNINGS
82#endif /* FF_API_AVPICTURE */
83