simple_decoder.c File Reference

Properties decoder for simple filters. More...

#include "simple_decoder.h"

Go to the source code of this file.

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

Detailed Description

Properties decoder for simple filters.

Definition in file simple_decoder.c.

Function Documentation

lzma_simple_props_decode()

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

Definition at line 17 of file simple_decoder.c.

{
    if (props_size == 0)
        return LZMA_OK;
 
    if (props_size != 4)
        return LZMA_OPTIONS_ERROR;
 
    lzma_options_bcj *opt = lzma_alloc(
            sizeof(lzma_options_bcj), allocator);
    if (opt == NULL)
        return LZMA_MEM_ERROR;
 
    opt->start_offset = read32le(props);
 
    // Don't leave an options structure allocated if start_offset is zero.
    if (opt->start_offset == 0)
        lzma_free(opt, allocator);
    else
        *options = opt;
 
    return LZMA_OK;
}

References allocator, lzma_alloc(), lzma_free(), LZMA_MEM_ERROR, LZMA_OK, LZMA_OPTIONS_ERROR, NULL, options, props, read32le(), and lzma_options_bcj::start_offset.