ra8_rar5_filter_t Struct Reference

One pending RAR5 data filter recorded during decode, applied after. More...

#include <ra8_rar5.h>

Data Fields
uint64_t	start
	Absolute output offset the filter transforms from.
uint32_t	len
	Length of the transformed range in bytes.
uint8_t	type
	Filter kind (ra8_rar5_filter_kind_t).
uint8_t	channels
	Delta channel count (1..32); unused otherwise.

Detailed Description

One pending RAR5 data filter recorded during decode, applied after.

The RAR5 token stream can insert a filter that post-processes an output range (executables/audio compress better delta/branch-transformed). For comic JPEG/PNG pages filters are effectively never emitted, but a conformant decoder records and replays them in order once decoding ends.

Invariant

type <= 3 (delta / e8 / e8e9 / arm).

See also

ra8_rar5_state_t

Since

Version 0.1.0

Definition at line 123 of file ra8_rar5.h.

Field Documentation

channels

uint8_t ra8_rar5_filter_t::channels

Delta channel count (1..32); unused otherwise.

Definition at line 127 of file ra8_rar5.h.

Referenced by internal_apply_one_filter(), and internal_read_filter().

len

uint32_t ra8_rar5_filter_t::len

Length of the transformed range in bytes.

Definition at line 125 of file ra8_rar5.h.

Referenced by internal_apply_one_filter(), and internal_read_filter().

start

uint64_t ra8_rar5_filter_t::start

Absolute output offset the filter transforms from.

Definition at line 124 of file ra8_rar5.h.

Referenced by internal_apply_one_filter(), and internal_read_filter().

type

uint8_t ra8_rar5_filter_t::type

Filter kind (ra8_rar5_filter_kind_t).

Definition at line 126 of file ra8_rar5.h.

Referenced by internal_apply_one_filter(), and internal_read_filter().

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The documentation for this struct was generated from the following file:

• apps/shared_libs/comic/inc/ra8_rar5.h