mirror of https://git.tukaani.org/xz.git
83 lines
2.5 KiB
C
83 lines
2.5 KiB
C
|
/**
|
||
|
|
* \file lzma/alone.h
|
||
|
|
* \brief Handling of the legacy LZMA_Alone format
|
||
|
|
*
|
||
|
|
* \author Copyright (C) 1999-2006 Igor Pavlov
|
||
|
|
* \author Copyright (C) 2007 Lasse Collin
|
||
|
|
*
|
||
|
|
* This library 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.
|
||
|
|
*
|
||
|
|
* This library 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.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef LZMA_H_INTERNAL
|
||
|
|
# error Never include this file directly. Use <lzma.h> instead.
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* \brief Options for files in the LZMA_Alone format
|
||
|
|
*/
|
||
|
|
typedef struct {
|
||
|
|
/**
|
||
|
|
* \brief Uncompressed Size and usage of End of Payload Marker
|
||
|
|
*
|
||
|
|
* In contrast to .lzma Blocks, LZMA_Alone format cannot have both
|
||
|
|
* uncompressed size field in the header and end of payload marker.
|
||
|
|
* If you don't know the uncompressed size beforehand, set it to
|
||
|
|
* LZMA_VLI_VALUE_UNKNOWN and liblzma will embed end of payload
|
||
|
|
* marker.
|
||
|
|
*/
|
||
|
|
lzma_vli uncompressed_size;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* \brief LZMA options
|
||
|
|
*
|
||
|
|
* The LZMA_Alone format supports only one filter: the LZMA filter.
|
||
|
|
*
|
||
|
|
* \note There exists also an undocumented variant of the
|
||
|
|
* LZMA_Alone format, which uses the x86 filter in
|
||
|
|
* addition to LZMA. This format was never supported
|
||
|
|
* by LZMA Utils and is not supported by liblzma either.
|
||
|
|
*/
|
||
|
|
lzma_options_lzma lzma;
|
||
|
|
|
||
|
|
} lzma_options_alone;
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* \brief Initializes LZMA_Alone encoder
|
||
|
|
*
|
||
|
|
* LZMA_Alone files have the suffix .lzma like the .lzma Stream files.
|
||
|
|
* LZMA_Alone format supports only one filter, the LZMA filter. There is
|
||
|
|
* no support for integrity checks like CRC32.
|
||
|
|
*
|
||
|
|
* Use this format if and only if you need to create files readable by
|
||
|
|
* legacy LZMA tools.
|
||
|
|
*
|
||
|
|
* LZMA_Alone encoder doesn't support LZMA_SYNC_FLUSH or LZMA_FULL_FLUSH.
|
||
|
|
*
|
||
|
|
* \return - LZMA_OK
|
||
|
|
* - LZMA_MEM_ERROR
|
||
|
|
* - LZMA_PROG_ERROR
|
||
|
|
*/
|
||
|
|
extern lzma_ret lzma_alone_encoder(
|
||
|
|
lzma_stream *strm, const lzma_options_alone *options);
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* \brief Initializes decoder for LZMA_Alone file
|
||
|
|
*
|
||
|
|
* The LZMA_Alone decoder supports LZMA_SYNC_FLUSH.
|
||
|
|
*
|
||
|
|
* \return - LZMA_OK
|
||
|
|
* - LZMA_MEM_ERROR
|
||
|
|
*/
|
||
|
|
extern lzma_ret lzma_alone_decoder(lzma_stream *strm);
|