delta_decoder.h File Reference

Delta filter decoder. More...

#include "delta_common.h"

Go to the source code of this file.

Functions
lzma_ret	lzma_delta_decoder_init (lzma_next_coder *next, const lzma_allocator *allocator, const lzma_filter_info *filters)
lzma_ret	lzma_delta_props_decode (void **options, const lzma_allocator *allocator, const uint8_t *props, size_t props_size)

Detailed Description

Delta filter decoder.

Definition in file delta_decoder.h.

Function Documentation

lzma_delta_decoder_init()

lzma_ret lzma_delta_decoder_init	(	lzma_next_coder *	next,
		const lzma_allocator *	allocator,
		const lzma_filter_info *	filters
	)

Definition at line 52 of file delta_decoder.c.

{
    next->code = &delta_decode;
    return lzma_delta_coder_init(next, allocator, filters);
}

References allocator, lzma_next_coder_s::code, delta_decode(), filters, and lzma_delta_coder_init().

lzma_delta_props_decode()

lzma_ret lzma_delta_props_decode	(	void **	options,
		const lzma_allocator *	allocator,
		const uint8_t *	props,
		size_t	props_size
	)

Definition at line 61 of file delta_decoder.c.

{
    if (props_size != 1)
        return LZMA_OPTIONS_ERROR;
 
    lzma_options_delta *opt
            = lzma_alloc(sizeof(lzma_options_delta), allocator);
    if (opt == NULL)
        return LZMA_MEM_ERROR;
 
    opt->type = LZMA_DELTA_TYPE_BYTE;
    opt->dist = props[0] + 1U;
 
    *options = opt;
 
    return LZMA_OK;
}

References allocator, lzma_options_delta::dist, lzma_alloc(), LZMA_DELTA_TYPE_BYTE, LZMA_MEM_ERROR, LZMA_OK, LZMA_OPTIONS_ERROR, NULL, options, props, and lzma_options_delta::type.