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///////////////////////////////////////////////////////////////////////////////
//
/// \file filter_common.h
/// \brief Filter-specific stuff common for both encoder and decoder
//
// Author: Lasse Collin
//
// This file has been put into the public domain.
// You can do whatever you want with this file.
//
///////////////////////////////////////////////////////////////////////////////
#ifndef LZMA_FILTER_COMMON_H
#define LZMA_FILTER_COMMON_H
#include "common.h"
/// Both lzma_filter_encoder and lzma_filter_decoder begin with these members.
typedef struct {
/// Filter ID
lzma_vli id;
/// Initializes the filter encoder and calls lzma_next_filter_init()
/// for filters + 1.
lzma_init_function init;
/// Calculates memory usage of the encoder. If the options are
/// invalid, UINT64_MAX is returned.
uint64_t (*memusage)(const void *options);
} lzma_filter_coder;
typedef const lzma_filter_coder *(*lzma_filter_find)(lzma_vli id);
extern lzma_ret lzma_raw_coder_init(
lzma_next_coder *next, const lzma_allocator *allocator,
const lzma_filter *filters,
lzma_filter_find coder_find, bool is_encoder);
extern uint64_t lzma_raw_coder_memusage(lzma_filter_find coder_find,
const lzma_filter *filters);
#endif
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