View Full Version : second pass without blocks
harissa
18th April 2007, 16:41
How to reduce blocks in second pass , I found them evrywhere in fast scene , dark scenes , they dont show up in the first pass ,
and i have tried to hit all setting to maxiumum
do I have to reconsider my avs , since it dosen t have any plugins except a decimate to reduce framerate
or is it just impossible to get a decent quality in second pass
my source is a hdtv movie 1280*720 (150min), encoded in same resolution set to 4.5 gig
Koepi
18th April 2007, 18:42
Encoding with the same block boundaries (that means, not changing the resolution or filtering the input) always results in more bitrate needed. You might consider doing some postprocessing on the source if it's mpeg2. That might help.
Which bitrate did your encode have after the first pass and what is the bitrate you try to use in the second pass?
Cheers
Koepi
harissa
18th April 2007, 22:14
the link for te original hdtv 720p file is here http://www.megaupload.com/fr/?d=HLDPCDB6
taget size in second pass = 56 meg = 4000
first test with this avs
loadplugin("G:\111\New\DGDecode.dll")
loadplugin("G:\111\New\Decomb.dll")
Mpeg2Source("test.d2v")
selecteven()
Decimate(5)
link for the snapshot from the hdtv file
link for the snapshot from the first pass file
link for the snapshot from the second pass file
http://www.megaupload.com/fr/?d=6LVHY78R
second test with this avs
loadplugin("G:\111\New\DGDecode.dll")
loadplugin("G:\111\New\Decomb.dll")
loadplugin("G:\111\New\addgrainc.dll")
Mpeg2Source("test.d2v")
selecteven()
Decimate(5)
addgrainc(6,0,0)
link for the snapshot from the first pass file
link for the snapshot from the second pass file
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