FFmpeg  1.2.12
imgutils.h
Go to the documentation of this file.
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 #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 AVPixelFormat pix_fmt, int width, int plane);
59 
67 int av_image_fill_linesizes(int linesizes[4], enum AVPixelFormat pix_fmt, int width);
68 
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 AVPixelFormat pix_fmt, int align);
95 
108 void av_image_copy_plane(uint8_t *dst, int dst_linesize,
109  const uint8_t *src, int src_linesize,
110  int bytewidth, int height);
111 
118 void av_image_copy(uint8_t *dst_data[4], int dst_linesizes[4],
119  const uint8_t *src_data[4], const int src_linesizes[4],
120  enum AVPixelFormat pix_fmt, int width, int height);
121 
148 int av_image_fill_arrays(uint8_t *dst_data[4], int dst_linesize[4],
149  const uint8_t *src,
150  enum AVPixelFormat pix_fmt, int width, int height, int align);
151 
158 int av_image_get_buffer_size(enum AVPixelFormat pix_fmt, int width, int height, int align);
159 
177 int av_image_copy_to_buffer(uint8_t *dst, int dst_size,
178  const uint8_t * const src_data[4], const int src_linesize[4],
179  enum AVPixelFormat pix_fmt, int width, int height, int align);
180 
191 int av_image_check_size(unsigned int w, unsigned int h, int log_offset, void *log_ctx);
192 
193 int avpriv_set_systematic_pal2(uint32_t pal[256], enum AVPixelFormat pix_fmt);
194 
200 #endif /* AVUTIL_IMGUTILS_H */