more info about data partitioning

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@7725 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
michael 2002-10-13 18:35:15 +00:00
parent c5bd2a756f
commit 51284eb622
1 changed files with 11 additions and 1 deletions

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@ -186,12 +186,22 @@ vstrict strict standard compliance
vdpart data partitioning
adds 2 byte per video packet
each videopacket will be encoded in 3 seperate partitions:
1. MVs (=movement)
2. DC coefficients (=low res picture)
3. AC coefficients (=details)
the MV & DC are most important, loosing them looks far worse than
loosing the AC and the 1. & 2. partition (MV&DC) are far smaller than
the 3. partition (AC) -> errors will hit the AC partition much more
often than the MV&DC -> the picture will look better with partitioning
than without, as without partitining an error will trash AC/DC/MV
equally
improves error-resistance when transfering over unreliable channels (eg.
streaming over the internet)
vpsize (0-10000) video packet size
0 disabled (default)
500-1000 good choice
100-1000 good choice
improves error-resistance (see vdpart for more info)
gray grayscale only encoding (a bit faster than with color ...)