#include "lzma2_encoder.h"
#include "lzma_encoder_private.h"
#include "fastpos.h"
Defines | |
#define | LOOP_INPUT_MAX (OPTS + 1) |
Functions | |
static void | literal_matched (lzma_range_encoder *rc, probability *subcoder, uint32_t match_byte, uint32_t symbol) |
static void | literal (lzma_coder *coder, lzma_mf *mf, uint32_t position) |
static void | length_update_prices (lzma_length_encoder *lc, const uint32_t pos_state) |
static void | length (lzma_range_encoder *rc, lzma_length_encoder *lc, const uint32_t pos_state, uint32_t len, const bool fast_mode) |
static void | match (lzma_coder *coder, const uint32_t pos_state, const uint32_t distance, const uint32_t len) |
static void | rep_match (lzma_coder *coder, const uint32_t pos_state, const uint32_t rep, const uint32_t len) |
static void | encode_symbol (lzma_coder *coder, lzma_mf *mf, uint32_t back, uint32_t len, uint32_t position) |
static bool | encode_init (lzma_coder *coder, lzma_mf *mf) |
static void | encode_eopm (lzma_coder *coder, uint32_t position) |
lzma_ret | lzma_lzma_encode (lzma_coder *restrict coder, lzma_mf *restrict mf, uint8_t *restrict out, size_t *restrict out_pos, size_t out_size, uint32_t limit) |
static lzma_ret | lzma_encode (lzma_coder *restrict coder, lzma_mf *restrict mf, uint8_t *restrict out, size_t *restrict out_pos, size_t out_size) |
static bool | is_options_valid (const lzma_options_lzma *options) |
static void | set_lz_options (lzma_lz_options *lz_options, const lzma_options_lzma *options) |
static void | length_encoder_reset (lzma_length_encoder *lencoder, const uint32_t num_pos_states, const bool fast_mode) |
lzma_ret | lzma_lzma_encoder_reset (lzma_coder *coder, const lzma_options_lzma *options) |
lzma_ret | lzma_lzma_encoder_create (lzma_coder **coder_ptr, lzma_allocator *allocator, const lzma_options_lzma *options, lzma_lz_options *lz_options) |
static lzma_ret | lzma_encoder_init (lzma_lz_encoder *lz, lzma_allocator *allocator, const void *options, lzma_lz_options *lz_options) |
lzma_ret | lzma_lzma_encoder_init (lzma_next_coder *next, lzma_allocator *allocator, const lzma_filter_info *filters) |
uint64_t | lzma_lzma_encoder_memusage (const void *options) |
bool | lzma_lzma_lclppb_encode (const lzma_options_lzma *options, uint8_t *byte) |
Encodes lc/lp/pb into one byte. Returns false on success and true on error. | |
LZMA_API (lzma_bool) | |
Test if the given Check ID is supported. |
#define LOOP_INPUT_MAX (OPTS + 1) |
Number of bytes that a single encoding loop in lzma_lzma_encode() can consume from the dictionary. This limit comes from lzma_lzma_optimum() and may need to be updated if that function is significantly modified.
bool lzma_lzma_lclppb_encode | ( | const lzma_options_lzma * | options, | |
uint8_t * | byte | |||
) |
Encodes lc/lp/pb into one byte. Returns false on success and true on error.
References is_lclppb_valid(), lzma_options_lzma::lc, lzma_options_lzma::lp, and lzma_options_lzma::pb.
LZMA_API | ( | lzma_bool | ) |
Test if the given Check ID is supported.
Test if given match finder is supported.
Test if the given Filter ID is supported for encoding.
Set a compression preset to lzma_options_lzma structure.
Test if given compression mode is supported.
Compare if two Index lists are identical.
Locate a Record.
Test if the given Filter ID is supported for decoding.
Returns true if the given Check ID is supported by this liblzma build. Otherwise false is returned. It is safe to call this with a value that is not in the range [0, 15]; in that case the return value is always false.
You can assume that LZMA_CHECK_NONE and LZMA_CHECK_CRC32 are always supported (even if liblzma is built with limited features).
Returns true if the give Filter ID is supported for decoding by this liblzma build. Otherwise false is returned.
When the Index is available, it is possible to do random-access reading with granularity of Block size.
i | Pointer to lzma_index structure | |
record | Pointer to a structure to hold the search results | |
target | Uncompressed target offset which the caller would like to locate from the Stream |
If target is greater than the uncompressed size of the Stream, *record and the read position are not modified, and this function returns true.
There is no way to list which modes are available in this particular liblzma version and build. It would be useless, because a new compression mode, which the application developer wasn't aware, could require giving additional options to the encoder that the older modes don't need.
0 is the fastest and 9 is the slowest. These match the switches -0 .. -9 of the xz command line tool. In addition, it is possible to bitwise-or flags to the preset. Currently only LZMA_PRESET_EXTREME is supported. The flags are defined in container.h, because the flags are used also with lzma_easy_encoder().
The preset values are subject to changes between liblzma versions.
This function is available only if LZMA1 or LZMA2 encoder has been enabled when building liblzma.
Test if the given Check ID is supported.
Compare if two Index lists are identical.
Locate a Record.
When the Index is available, it is possible to do random-access reading with granularity of Block size.
i | Pointer to lzma_index structure | |
record | Pointer to a structure to hold the search results | |
target | Uncompressed target offset which the caller would like to locate from the Stream |
If target is greater than the uncompressed size of the Stream, *record and the read position are not modified, and this function returns true.