12940b44dSPeter Avalos /////////////////////////////////////////////////////////////////////////////// 22940b44dSPeter Avalos // 32940b44dSPeter Avalos /// \file simple_encoder.c 42940b44dSPeter Avalos /// \brief Properties encoder for simple filters 52940b44dSPeter Avalos // 62940b44dSPeter Avalos // Author: Lasse Collin 72940b44dSPeter Avalos // 82940b44dSPeter Avalos // This file has been put into the public domain. 92940b44dSPeter Avalos // You can do whatever you want with this file. 102940b44dSPeter Avalos // 112940b44dSPeter Avalos /////////////////////////////////////////////////////////////////////////////// 122940b44dSPeter Avalos 132940b44dSPeter Avalos #include "simple_encoder.h" 142940b44dSPeter Avalos 152940b44dSPeter Avalos 162940b44dSPeter Avalos extern lzma_ret lzma_simple_props_size(uint32_t * size,const void * options)172940b44dSPeter Avaloslzma_simple_props_size(uint32_t *size, const void *options) 182940b44dSPeter Avalos { 192940b44dSPeter Avalos const lzma_options_bcj *const opt = options; 202940b44dSPeter Avalos *size = (opt == NULL || opt->start_offset == 0) ? 0 : 4; 212940b44dSPeter Avalos return LZMA_OK; 222940b44dSPeter Avalos } 232940b44dSPeter Avalos 242940b44dSPeter Avalos 252940b44dSPeter Avalos extern lzma_ret lzma_simple_props_encode(const void * options,uint8_t * out)262940b44dSPeter Avaloslzma_simple_props_encode(const void *options, uint8_t *out) 272940b44dSPeter Avalos { 282940b44dSPeter Avalos const lzma_options_bcj *const opt = options; 292940b44dSPeter Avalos 302940b44dSPeter Avalos // The default start offset is zero, so we don't need to store any 312940b44dSPeter Avalos // options unless the start offset is non-zero. 322940b44dSPeter Avalos if (opt == NULL || opt->start_offset == 0) 332940b44dSPeter Avalos return LZMA_OK; 342940b44dSPeter Avalos 35*e151908bSDaniel Fojt write32le(out, opt->start_offset); 362940b44dSPeter Avalos 372940b44dSPeter Avalos return LZMA_OK; 382940b44dSPeter Avalos } 39