ddidderr/zstd-rs
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Clarify that the presence of a value with weight 1 is required

Browse Source
This commit is contained in:
elasota
2023-11-24 16:49:40 -05:00
committed by Nick Terrell
parent 8193250615
commit dc84e35138
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
doc/zstd_compression_format.md
+1 -1
View File
@@ -1252,7 +1252,7 @@ Number_of_Bits = Weight ? (Max_Number_of_Bits + 1 - Weight) : 0
``` ```
When a literal value is not present, it receives a `Weight` of 0. When a literal value is not present, it receives a `Weight` of 0.
The least frequent symbol receives a `Weight` of 1. The least frequent symbol receives a `Weight` of 1.
Consequently, the `Weight` 1 is necessarily present. If no symbol has a `Weight` of 1, then the data is considered corrupted.
The most frequent symbol receives a `Weight` anywhere between 1 and 11 (max). The most frequent symbol receives a `Weight` anywhere between 1 and 11 (max).
The last symbol's `Weight` is deduced from previously retrieved Weights, The last symbol's `Weight` is deduced from previously retrieved Weights,
by completing to the nearest power of 2. It's necessarily non 0. by completing to the nearest power of 2. It's necessarily non 0.