libaaruformat 1.0 Aaru Data Preservation Suite - Format Library

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lzma.c File Reference
`#include <stddef.h>`
`#include <stdint.h>`
`#include "aaruformat.h"`
`#include "../../3rdparty/lzma-21.03beta/C/LzmaLib.h"`

Go to the source code of this file.

## Functions
int32_t | aaruf_lzma_decode_buffer (uint8_t *dst_buffer, size_t *dst_size, const uint8_t *src_buffer, size_t *src_len, const uint8_t *props, const size_t props_size)
| Decodes an LZMA-compressed buffer.
int32_t | aaruf_lzma_encode_buffer (uint8_t *dst_buffer, size_t *dst_size, const uint8_t *src_buffer, const size_t src_len, uint8_t *out_props, size_t *out_props_size, const int32_t level, const uint32_t dict_size, const int32_t lc, const int32_t lp, const int32_t pb, const int32_t fb, const int32_t num_threads)
| Encodes a buffer using LZMA compression.

## Function Documentation

## ◆ aaruf_lzma_decode_buffer()

int32_t aaruf_lzma_decode_buffer | ( | uint8_t * | dst_buffer,
|  | size_t * | dst_size,
|  | const uint8_t * | src_buffer,
|  | size_t * | src_len,
|  | const uint8_t * | props,
|  | const size_t | props_size )

Decodes an LZMA-compressed buffer.

Decompresses data from the source buffer into the destination buffer using LZMA.

Parameters

  dst_buffer | Pointer to the destination buffer.
  dst_size | Pointer to the size of the destination buffer; updated with the actual size.
  src_buffer | Pointer to the source (compressed) buffer.
  src_len | Pointer to the size of the source buffer; updated with the actual size read.
  props | Pointer to the LZMA properties.
  props_size | Size of the LZMA properties.

Returns
  0 on success, or an error code on failure.

Definition at line 39 of file lzma.c.

References AARU_CALL, and AARU_EXPORT.

Referenced by aaruf_read_sector(), decode_ddt_multi_level_v2(), process_data_block(), process_ddt_v1(), and process_ddt_v2().

## ◆ aaruf_lzma_encode_buffer()

int32_t aaruf_lzma_encode_buffer | ( | uint8_t * | dst_buffer,
|  | size_t * | dst_size,
|  | const uint8_t * | src_buffer,
|  | const size_t | src_len,
|  | uint8_t * | out_props,
|  | size_t * | out_props_size,
|  | const int32_t | level,
|  | const uint32_t | dict_size,
|  | const int32_t | lc,
|  | const int32_t | lp,
|  | const int32_t | pb,
|  | const int32_t | fb,
|  | const int32_t | num_threads )

Encodes a buffer using LZMA compression.

Compresses data from the source buffer into the destination buffer using LZMA.

Parameters

  dst_buffer | Pointer to the destination buffer.
  dst_size | Pointer to the size of the destination buffer; updated with the actual size.
  src_buffer | Pointer to the source (uncompressed) buffer.
  src_len | Size of the source buffer.
  out_props | Pointer to the output LZMA properties.
  out_props_size | Pointer to the size of the output LZMA properties.
  level | Compression level.
  dict_size | Dictionary size.
  lc | LZMA literal context bits.
  lp | LZMA literal position bits.
  pb | LZMA position bits.
  fb | Number of fast bytes.
  num_threads | Number of threads to use.

Returns
  0 on success, or an error code on failure.

Definition at line 65 of file lzma.c.

References AARU_CALL, and AARU_EXPORT.

Referenced by aaruf_close_current_block(), set_ddt_multi_level_v2(), write_cached_secondary_ddt(), write_dvd_long_sector_blocks(), write_dvd_title_key_decrypted_block(), write_media_tags(), write_mode2_subheaders_block(), write_sector_prefix(), write_sector_prefix_ddt(), write_sector_subchannel(), write_sector_suffix(), write_sector_suffix_ddt(), and write_single_level_ddt().