mirror of
https://git.tukaani.org/xz.git
synced 2025-02-10 10:45:46 +00:00
418d64a32e
Originally the idea was that using LZMA_FULL_FLUSH with Stream encoder would read the filter chain from the same array that was used to intialize the Stream encoder. Since most apps wouldn't use LZMA_FULL_FLUSH, most apps wouldn't need to keep the filter chain available after initializing the Stream encoder. However, due to my mistake, it actually required keeping the array always available. Since setting the new filter chain via the array used at initialization time is not a nice way to do it for a couple of reasons, this commit ditches it and introduces lzma_filters_update(). This new function replaces also the "persistent" flag used by LZMA2 (and to-be-designed Subblock filter), which was also an ugly thing to do. Thanks to Alexey Tourbin for reminding me about the problem that Stream encoder used to require keeping the filter chain allocated.
26 lines
706 B
C
26 lines
706 B
C
///////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
/// \file easy_encoder.c
|
|
/// \brief Easy .xz Stream encoder initialization
|
|
//
|
|
// Author: Lasse Collin
|
|
//
|
|
// This file has been put into the public domain.
|
|
// You can do whatever you want with this file.
|
|
//
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
#include "easy_preset.h"
|
|
#include "stream_encoder.h"
|
|
|
|
|
|
extern LZMA_API(lzma_ret)
|
|
lzma_easy_encoder(lzma_stream *strm, uint32_t preset, lzma_check check)
|
|
{
|
|
lzma_options_easy opt_easy;
|
|
if (lzma_easy_preset(&opt_easy, preset))
|
|
return LZMA_OPTIONS_ERROR;
|
|
|
|
return lzma_stream_encoder(strm, opt_easy.filters, check);
|
|
}
|