imgutils.h
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1 /*
2  * This file is part of Libav.
3  *
4  * Libav 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  * Libav 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 Libav; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #ifndef AVUTIL_IMGUTILS_H
20 #define AVUTIL_IMGUTILS_H
21 
30 #include "avutil.h"
31 #include "pixdesc.h"
32 
49 void av_image_fill_max_pixsteps(int max_pixsteps[4], int max_pixstep_comps[4],
50  const AVPixFmtDescriptor *pixdesc);
51 
58 int av_image_get_linesize(enum PixelFormat pix_fmt, int width, int plane);
59 
67 int av_image_fill_linesizes(int linesizes[4], enum PixelFormat pix_fmt, int width);
68 
80 int av_image_fill_pointers(uint8_t *data[4], enum PixelFormat pix_fmt, int height,
81  uint8_t *ptr, const int linesizes[4]);
82 
93 int av_image_alloc(uint8_t *pointers[4], int linesizes[4],
94  int w, int h, enum PixelFormat pix_fmt, int align);
95 
105 void av_image_copy_plane(uint8_t *dst, int dst_linesize,
106  const uint8_t *src, int src_linesize,
107  int bytewidth, int height);
108 
115 void av_image_copy(uint8_t *dst_data[4], int dst_linesizes[4],
116  const uint8_t *src_data[4], const int src_linesizes[4],
117  enum PixelFormat pix_fmt, int width, int height);
118 
129 int av_image_check_size(unsigned int w, unsigned int h, int log_offset, void *log_ctx);
130 
131 int ff_set_systematic_pal2(uint32_t pal[256], enum PixelFormat pix_fmt);
132 
138 #endif /* AVUTIL_IMGUTILS_H */