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  1. /*
  2.  * RLE encoder
  3.  *
  4.  * This file is part of FFmpeg.
  5.  *
  6.  * FFmpeg is free software; you can redistribute it and/or
  7.  * modify it under the terms of the GNU Lesser General Public
  8.  * License as published by the Free Software Foundation; either
  9.  * version 2.1 of the License, or (at your option) any later version.
  10.  *
  11.  * FFmpeg is distributed in the hope that it will be useful,
  12.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14.  * Lesser General Public License for more details.
  15.  *
  16.  * You should have received a copy of the GNU Lesser General Public
  17.  * License along with FFmpeg; if not, write to the Free Software
  18.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  19.  */
  20.  
  21. #ifndef AVCODEC_RLE_H
  22. #define AVCODEC_RLE_H
  23.  
  24. #include <stdint.h>
  25.  
  26. /**
  27.  * RLE compress the row, with maximum size of out_size. Value before repeated bytes is (count ^ xor_rep) + add_rep.
  28.  *                                                      Value before raw bytes is      (count ^ xor_raw) + add_raw.
  29.  * @param outbuf Output buffer
  30.  * @param out_size Maximum output size
  31.  * @param inbuf Input buffer
  32.  * @param bpp Bytes per pixel
  33.  * @param w Image width
  34.  * @return Size of output in bytes, or -1 if larger than out_size
  35.  */
  36. int ff_rle_encode(uint8_t *outbuf, int out_size, const uint8_t *inbuf, int bpp, int w,
  37.                   int add_rep, int xor_rep, int add_raw, int xor_raw);
  38.  
  39. #endif /* AVCODEC_RLE_H */
  40.