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4.45 beta

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This commit is contained in:
Igor Pavlov
2007-04-17 00:00:00 +00:00
committed by Kornel Lesiński
parent d9666cf046
commit a145bfc7cf
458 changed files with 13144 additions and 18608 deletions
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27
DOC/Methods.txt
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@@ -1,24 +1,23 @@
Compression method IDs (4.43)
-----------------------------
7-Zip method IDs (4.45)
-----------------------
Each compression method in 7z has unique binary value (ID).
The length of ID in bytes is arbitrary but it can not exceed 15 bytes.
Each compression or crypto method in 7z has unique binary value (ID).
The length of ID in bytes is arbitrary but it can not exceed 63 bits (8 bytes).
If you want to add some new ID, you have two ways:
1) Write request for allocating IDs to 7-zip developers.
2) Use such random ID:
03 E0 ZZ ... ZZ MM ... MM VV ... VV
2) Generate 8-bytes ID:
ZZ != 0, MM != 0, VV != 0
7F ZZ ZZ ZZ ZZ ZZ MM MM
03 E0 - Prefix for random IDs
ZZ ... ZZ - Developer ID. (length >= 4). Use real random bytes.
You can notify 7-Zip developers about your Developer ID.
MM ... MM - Method ID (length >= 1)
VV ... VV - Version (length >= 1)
7F - Prefix for random IDs (1 byte)
ZZ ZZ ZZ ZZ ZZ - Developer ID (5 bytes). Use real random bytes.
MM MM - Method ID (2 bytes)
Note: Use new ID (MM ... MM VV .. VV) only if old codec can not decode
data encoded with new version.
You can notify 7-Zip developers about your Developer ID / Method ID.
Note: Use new ID only if old codec can not decode data encoded with new version.
List of defined IDs