/* * LZW decoder * Copyright (c) 2003 Fabrice Bellard. * Copyright (c) 2006 Konstantin Shishkov. * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *//** * @file lzw.h * @brief LZW decoding routines * @author Fabrice Bellard * Modified for use in TIFF by Konstantin Shishkov */#ifndef FFMPEG_LZW_H#define FFMPEG_LZW_H#include "bitstream.h"enum FF_LZW_MODES{    FF_LZW_GIF,    FF_LZW_TIFF};/* clients should not know what LZWState is */typedef void LZWState;/* first two functions de/allocate memory for LZWState */void ff_lzw_decode_open(LZWState **p);void ff_lzw_decode_close(LZWState **p);int ff_lzw_decode_init(LZWState *s, int csize, const uint8_t *buf, int buf_size, int mode);int ff_lzw_decode(LZWState *s, uint8_t *buf, int len);const uint8_t* ff_lzw_cur_ptr(LZWState *lzw);void ff_lzw_decode_tail(LZWState *lzw);/** LZW encode state */struct LZWEncodeState;extern const int ff_lzw_encode_state_size;void ff_lzw_encode_init(struct LZWEncodeState * s, uint8_t * outbuf, int outsize, int maxbits);int ff_lzw_encode(struct LZWEncodeState * s, const uint8_t * inbuf, int insize);int ff_lzw_encode_flush(struct LZWEncodeState * s);#endif /* FFMPEG_LZW_H */