Filter-specific stuff common for both encoder and decoder. More...

#include "filter_common.h"

Functions
lzma_ret	lzma_filters_copy (const lzma_filter src, lzma_filter dest, lzma_allocator *allocator)
	Copy the filters array.
static lzma_ret	validate_chain (const lzma_filter filters, size_t count)
lzma_ret	lzma_raw_coder_init (lzma_next_coder next, lzma_allocator allocator, const lzma_filter *options, lzma_filter_find coder_find, bool is_encoder)
uint64_t	lzma_raw_coder_memusage (lzma_filter_find coder_find, const lzma_filter *filters)
Variables
struct {
lzma_vli id
	Filter ID.
size_t options_size
	Size of the filter-specific options structure.
bool non_last_ok
bool last_ok
bool changes_size
}	features []

Detailed Description

Filter-specific stuff common for both encoder and decoder.

Function Documentation

lzma_ret lzma_filters_copy	(	const lzma_filter *	src,
		lzma_filter *	dest,
		lzma_allocator *	allocator
	)

Copy the filters array.

Copy the Filter IDs and filter-specific options from src to dest. Up to LZMA_FILTERS_MAX filters are copied, plus the terminating .id == LZMA_VLI_UNKNOWN. Thus, dest should have at least LZMA_FILTERS_MAX + 1 elements space unless the caller knows that src is smaller than that.

Unless the filter-specific options is NULL, the Filter ID has to be supported by liblzma, because liblzma needs to know the size of every filter-specific options structure. The filter-specific options are not validated. If options is NULL, any unsupported Filter IDs are copied without returning an error.

Old filter-specific options in dest are not freed, so dest doesn't need to be initialized by the caller in any way.

If an error occurs, memory possibly already allocated by this function is always freed.

Returns:

- LZMA_OK