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libavutil/imgutils.h

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00001 /*
00002  * This file is part of Libav.
00003  *
00004  * Libav is free software; you can redistribute it and/or
00005  * modify it under the terms of the GNU Lesser General Public
00006  * License as published by the Free Software Foundation; either
00007  * version 2.1 of the License, or (at your option) any later version.
00008  *
00009  * Libav is distributed in the hope that it will be useful,
00010  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012  * Lesser General Public License for more details.
00013  *
00014  * You should have received a copy of the GNU Lesser General Public
00015  * License along with Libav; if not, write to the Free Software
00016  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
00017  */
00018 
00019 #ifndef AVUTIL_IMGUTILS_H
00020 #define AVUTIL_IMGUTILS_H
00021 
00030 #include "avutil.h"
00031 #include "pixdesc.h"
00032 
00049 void av_image_fill_max_pixsteps(int max_pixsteps[4], int max_pixstep_comps[4],
00050                                 const AVPixFmtDescriptor *pixdesc);
00051 
00058 int av_image_get_linesize(enum PixelFormat pix_fmt, int width, int plane);
00059 
00067 int av_image_fill_linesizes(int linesizes[4], enum PixelFormat pix_fmt, int width);
00068 
00080 int av_image_fill_pointers(uint8_t *data[4], enum PixelFormat pix_fmt, int height,
00081                            uint8_t *ptr, const int linesizes[4]);
00082 
00093 int av_image_alloc(uint8_t *pointers[4], int linesizes[4],
00094                    int w, int h, enum PixelFormat pix_fmt, int align);
00095 
00105 void av_image_copy_plane(uint8_t       *dst, int dst_linesize,
00106                          const uint8_t *src, int src_linesize,
00107                          int bytewidth, int height);
00108 
00115 void av_image_copy(uint8_t *dst_data[4], int dst_linesizes[4],
00116                    const uint8_t *src_data[4], const int src_linesizes[4],
00117                    enum PixelFormat pix_fmt, int width, int height);
00118 
00129 int av_image_check_size(unsigned int w, unsigned int h, int log_offset, void *log_ctx);
00130 
00131 int ff_set_systematic_pal2(uint32_t pal[256], enum PixelFormat pix_fmt);
00132 
00138 #endif /* AVUTIL_IMGUTILS_H */
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