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/**
* \file lzma/delta.h
* \brief Delta filter
*
* \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 Filter ID
*
* Filter ID of the Delta filter. This is used as lzma_options_filter.id.
*/
#define LZMA_FILTER_DELTA LZMA_VLI_C(0x20)
/**
* \brief Options for the Delta filter
*
* These options are needed by both encoder and decoder.
*/
typedef struct {
/**
* \brief Delta distance as bytes
*
* Examples:
* - 16-bit stereo audio: distance = 4 bytes
* - 24-bit RGB image data: distance = 3 bytes
*/
uint32_t distance;
# define LZMA_DELTA_DISTANCE_MIN 1
# define LZMA_DELTA_DISTANCE_MAX 256
} lzma_options_delta;
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