mirror of
https://github.com/google/brotli.git
synced 2024-11-09 21:50:07 +00:00
0e42caf359
Not all combinations are migrated to the initial configuration; corresponding TODOs added. Drive-by: additional combinations uncovered minor portability problems -> fixed Drive-by: remove no-longer used "script" files. Co-authored-by: Eugene Kliuchnikov <eustas@chromium.org>
48 lines
1.7 KiB
Groff
48 lines
1.7 KiB
Groff
.TH "constants.h" 3 "August 2021" "Brotli" \" -*- nroff -*-
|
|
.ad l
|
|
.nh
|
|
.SH NAME
|
|
constants.h \- Common constants used in decoder and encoder API\&.
|
|
|
|
.SH SYNOPSIS
|
|
.br
|
|
.PP
|
|
.SS "Macros"
|
|
|
|
.in +1c
|
|
.ti -1c
|
|
.RI "#define \fBBROTLI_LARGE_MAX_DISTANCE_BITS\fP 62U"
|
|
.br
|
|
.RI "\fIThe theoretical maximum number of distance bits specified for large window brotli, for 64-bit encoders and decoders\&. \fP"
|
|
.ti -1c
|
|
.RI "#define \fBBROTLI_LARGE_MAX_WBITS\fP 30"
|
|
.br
|
|
.RI "\fIThe maximum supported large brotli window bits by the encoder and decoder\&. \fP"
|
|
.ti -1c
|
|
.RI "#define \fBBROTLI_MAX_NPOSTFIX\fP 3"
|
|
.br
|
|
.RI "\fIMaximal number of 'postfix' bits\&. \fP"
|
|
.in -1c
|
|
.SH "Detailed Description"
|
|
.PP
|
|
Common constants used in decoder and encoder API\&.
|
|
|
|
|
|
.SH "Macro Definition Documentation"
|
|
.PP
|
|
.SS "#define BROTLI_LARGE_MAX_DISTANCE_BITS 62U"
|
|
|
|
.PP
|
|
The theoretical maximum number of distance bits specified for large window brotli, for 64-bit encoders and decoders\&. Even when in practice 32-bit encoders and decoders only support up to 30 max distance bits, the value is set to 62 because it affects the large window brotli file format\&. Specifically, it affects the encoding of simple huffman tree for distances, see Specification RFC 7932 chapter 3\&.4\&.
|
|
.SS "#define BROTLI_LARGE_MAX_WBITS 30"
|
|
|
|
.PP
|
|
The maximum supported large brotli window bits by the encoder and decoder\&. Large window brotli allows up to 62 bits, however the current encoder and decoder, designed for 32-bit integers, only support up to 30 bits maximum\&.
|
|
.SS "#define BROTLI_MAX_NPOSTFIX 3"
|
|
|
|
.PP
|
|
Maximal number of 'postfix' bits\&. Number of 'postfix' bits is stored as 2 bits in meta-block header\&.
|
|
.SH "Author"
|
|
.PP
|
|
Generated automatically by Doxygen for Brotli from the source code\&.
|