How to make a good quality rip when there is a lot of flashing screen.

hkl8324 · 26th June 2006, 11:36

What have a done:

1.Used DGindx to process the VOB file
2.Made a AVIsynth script using
Undot(), KernelDeInt(order=1,sharp=true) and LanczosResize(640,480)
3.Encoded the file using XviD 2 pass 2000Kb/s with options:
Motions search precision 4-Hight
VHQ-mode 3-medium search
and with other settings at default

And I ended up producing something that bad looking

Video, ~10MB)
http://www.yousendit.com/transfer.ph...4B088C1AB8EBEE

Did I do something wrong? Or is it Mpeg 4 codec cant cope with those flashing screen at such bitrate? (2000Kb/s) and most importantly, how can I improve the video quality?

Thanks

CWR03 · 26th June 2006, 11:55

It's more than the flashing, it's also similar to the way you get heavy blocking of fog or fire. Large areas of similar color are already hard to encode, and when you combine it with rapid scene changes and huge amounts of motion, you're going to have problems. You've also got a much higher bitrate on the audio than you probably need.

gameplaya15143 · 4th July 2006, 01:50

You might try adjusting the keyframe boost/reduction. (I didn't look at your clip, but this comes to mind anyways)

unskinnyboy · 4th July 2006, 04:50

The link to your file has expired. Can you reupload it? Also upload a sample of the source, which is more important.

26th June 2006, 11:36	#1 \| Link
hkl8324 Registered User Join Date: Dec 2005 Posts: 80	How to make a good quality rip when there is a lot of flashing screen. What have a done: 1.Used DGindx to process the VOB file 2.Made a AVIsynth script using Undot(), KernelDeInt(order=1,sharp=true) and LanczosResize(640,480) 3.Encoded the file using XviD 2 pass 2000Kb/s with options: Motions search precision 4-Hight VHQ-mode 3-medium search and with other settings at default And I ended up producing something that bad lookingVideo, ~10MB) http://www.yousendit.com/transfer.ph...4B088C1AB8EBEE Did I do something wrong? Or is it Mpeg 4 codec cant cope with those flashing screen at such bitrate? (2000Kb/s) and most importantly, how can I improve the video quality? Thanks

4th July 2006, 01:50	#3 \| Link
gameplaya15143 Codec Tweaker Join Date: Apr 2006 Location: Earth Posts: 184	You might try adjusting the keyframe boost/reduction. (I didn't look at your clip, but this comes to mind anyways) __________________ My Site \| SKOSC \| dBpowerAMP \| vfw h264 decoding lame 3.93.1 -q 5 -V 9 -k -Z --nspsytune vorbis -q 0 --advanced-encode-option lowpass_frequency=99

4th July 2006, 04:50	#4 \| Link
unskinnyboy Registered User Join Date: Feb 2004 Location: NTSC R1 Posts: 2,054	The link to your file has expired. Can you reupload it? Also upload a sample of the source, which is more important. __________________ I encode, therefore I am. Doom9 Toolbar Extension for Firefox [v3.1]

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26th June 2006, 11:55	#2 \| Link
CWR03 Custom User Title Join Date: Mar 2005 Posts: 3,465	It's more than the flashing, it's also similar to the way you get heavy blocking of fog or fire. Large areas of similar color are already hard to encode, and when you combine it with rapid scene changes and huge amounts of motion, you're going to have problems. You've also got a much higher bitrate on the audio than you probably need.