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better back_ptr_div16 description by (Clemens Ladisch ((( cladisch ( fastmail (( net

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@22069 b3059339-0415-0410-9bf9-f77b7e298cf2
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michael 2007-01-30 00:47:28 +00:00
parent fc65d8d101
commit e1da2a8c81
1 changed files with 5 additions and 4 deletions
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DOCS/tech/nut.txt
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@ -736,10 +736,11 @@ Syncpoint tags:
back_ptr_div16 (v)
back_ptr = back_ptr_div16 * 16 + 15
back_ptr must point to a position within 16 bytes of a syncpoint
startcode. This syncpoint MUST be the closest syncpoint such that at
least one keyframe with a pts lower or equal to the original syncpoint's
global_key_pts for all streams lies between it and the current syncpoint.
back_ptr must point to a position up to 15 bytes before a syncpoint
startcode. Relative to position of current syncpoint. The syncpoint
pointed to MUST be the closest syncpoint such that at least one keyframe
with a pts lower or equal to the current syncpoint's global_key_pts for
all streams lies between it and the current syncpoint.
A stream where EOR is set is to be ignored for back_ptr.