[NUT-devel] [nut]: r161 - trunk/docs/nut-english.txt
ods15
subversion at mplayerhq.hu
Sat Oct 28 19:39:18 CEST 2006
Author: ods15
Date: Sat Oct 28 19:39:18 2006
New Revision: 161
Modified:
trunk/docs/nut-english.txt
Log:
some fixes
Modified: trunk/docs/nut-english.txt
==============================================================================
--- trunk/docs/nut-english.txt (original)
+++ trunk/docs/nut-english.txt Sat Oct 28 19:39:18 2006
@@ -37,9 +37,13 @@
robustness, a NUT file needs to include backup copies of the headers.
In the absence of valid headers at the beginning of the file,
processes attempting to read a NUT file are recommended to search for
-backup headers beginning at each power-of-two byte offset in the file.
+backup headers beginning at each power-of-two byte offset in the file,
+and before end of file.
Simple stop conditions are provided to ensure that this search
-algorithm is bounded logarithmically in file length.
+algorithm is bounded logarithmically in file length. This stop condition
+is finding any valid NUT packet (such as a syncpoint) during the search,
+as no packets are allowed between a search start until a reapeted header
+set.
Metadata - Info Packets
@@ -47,7 +51,7 @@
"info" packets, which contain (mostly textual, but other formats are
possible) information on the file, on particular streams, or on
particular time intervals ("chapters") of the file, such as: title,
-author, language, etc. One should not that info packets may occur at
+author, language, etc. One should note that info packets may occur at
other locations in a file, particulatly in a file that is being
generated/transmitted in real time; however, a process interpreting a
NUT file should not make any attempt to search for info packets except
@@ -76,7 +80,7 @@
On the other hand, all NUT files except live streams (which have no
concept of "end of file") must include an index at the end of the
-file, followed by a fixed-size 32-bit integer that is an offset
+file, followed by a fixed-size 64-bit integer that is an offset
backwards from end-of-file at which the final index packet begins.
This is the only fixed-size field specified by NUT, and makes it
possible to locate an index stored at the end of the file without
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