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compress back_ptr better by multiplying by 8

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@16574 b3059339-0415-0410-9bf9-f77b7e298cf2
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ods15 2005-09-24 04:43:02 +00:00
parent b383ffa4b7
commit 41d8ea3533
1 changed files with 5 additions and 2 deletions
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DOCS/tech/mpcf.txt
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@ -282,8 +282,11 @@ forward_ptr
after the forward_ptr to the first byte of the next packet)
back_ptr
pointer to the latest syncpoint, for which there is at least one
keyframe prior to the global_timestamp in every stream
real_back_ptr = back_ptr * 8 + 7
real_back_ptr must point to a position such that a syncpoint startcode begins
within the next 8 bytes, and such that at least one keyframe for each stream
lies between the syncpoint to which real_back_ptr points, and the current
syncpoint.
file_id_string
"nut/multimedia container\0"