t4_t6_decode.h

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00001 /*
00002  * SpanDSP - a series of DSP components for telephony
00003  *
00004  * t4_t6_decode.h - definitions for T.4/T.6 fax decoding
00005  *
00006  * Written by Steve Underwood <steveu@coppice.org>
00007  *
00008  * Copyright (C) 2003, 2009 Steve Underwood
00009  *
00010  * All rights reserved.
00011  *
00012  * This program is free software; you can redistribute it and/or modify
00013  * it under the terms of the GNU Lesser General Public License version 2.1,
00014  * as published by the Free Software Foundation.
00015  *
00016  * This program is distributed in the hope that it will be useful,
00017  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00018  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00019  * GNU Lesser General Public License for more details.
00020  *
00021  * You should have received a copy of the GNU Lesser General Public
00022  * License along with this program; if not, write to the Free Software
00023  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00024  */
00025 
00026 /*! \file */
00027 
00028 #if !defined(_SPANDSP_T4_T6_DECODE_H_)
00029 #define _SPANDSP_T4_T6_DECODE_H_
00030 
00031 /*! \page t4_t6_decode_page T.4 and T.6 FAX image decompression
00032 
00033 \section t4_t6_decode_page_sec_1 What does it do?
00034 The T.4 image compression and decompression routines implement the 1D and 2D
00035 encoding methods defined in ITU specification T.4. They also implement the pure
00036 2D encoding method defined in T.6. These are image compression algorithms used
00037 for FAX transmission.
00038 
00039 \section t4_t6_decode_page_sec_1 How does it work?
00040 */
00041 
00042 typedef struct t4_t6_decode_state_s t4_t6_decode_state_t;
00043 
00044 #if defined(__cplusplus)
00045 extern "C" {
00046 #endif
00047 
00048 #if defined(__cplusplus)
00049 }
00050 #endif
00051 
00052 #endif
00053 /*- End of file ------------------------------------------------------------*/

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