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  1. /*
  2.  * CCITT Fax Group 3 and 4 decompression
  3.  * Copyright (c) 2008 Konstantin Shishkov
  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.  * CCITT Fax Group 3 and 4 decompression
  25.  * @author Konstantin Shishkov
  26.  */
  27. #ifndef AVCODEC_FAXCOMPR_H
  28. #define AVCODEC_FAXCOMPR_H
  29.  
  30. #include "avcodec.h"
  31. #include "tiff.h"
  32.  
  33. /**
  34.  * initialize upacker code
  35.  */
  36. void ff_ccitt_unpack_init(void);
  37.  
  38. /**
  39.  * unpack data compressed with CCITT Group 3 1/2-D or Group 4 method
  40.  */
  41. int ff_ccitt_unpack(AVCodecContext *avctx,
  42.                     const uint8_t *src, int srcsize,
  43.                     uint8_t *dst, int height, int stride,
  44.                     enum TiffCompr compr, int opts);
  45.  
  46. #endif /* AVCODEC_FAXCOMPR_H */
  47.