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Old 28 Apr 2003, 07:11 AM   #1
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Default swimming blockyness?

Even though i am encoding over 2CD's i still struggle with blocks that seems to be alive in the background, usually on darker indoor scenes like on a wall or in animate objects. My codec is divx 5.02 (pro) and i use gknot .26 with 2 pass encoding and common resolutions i use are 544 x 240, 540 x 336 etc. Has anyone else been able to overcome this?
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Old 28 Apr 2003, 07:28 AM   #2
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What is your bitrate you are using
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Old 28 Apr 2003, 07:44 AM   #3
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It varies of course depending on the length of movie however i am usually between 1300 - 1700.
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Old 28 Apr 2003, 09:43 AM   #4
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maybe it has to do with your playback filter/settings?

i prefer postprocessing set to the max - do you have any enabled?
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Old 28 Apr 2003, 10:48 AM   #5
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My rips are viewed on a GeForce 4 Ti42000 card that is on a clone setting so the output is seen on a 19" RCA TV via S-video cable. Also under the video card performance settings my hardware accerlation is set to full.

I use Bsp player as a rule and under tools/divx settings i have maxed out the postprocessing contoll.
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Old 28 Apr 2003, 10:53 AM   #6
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could you provide a screenshot of those flaws?

i canhardly believe that you should experience any such problems with that bitrate you mentioned and max. postprocessing settings.

maybe the problem is driver related!?
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Old 28 Apr 2003, 11:48 AM   #7
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Generally make sure the resolutions you use are a multiple of 16.

Do these "swimming blocks" manifest themselves only when you play your rip on your televsion using the TV-OUT function? Or are they evident on your PC monitor as well?


What is your source: hybrid? progressive? interlaced? You may need to make some adjustments.

Are you using q-pel and/or GMC (use of these features may cause problems)?
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Old 29 Apr 2003, 10:33 AM   #8
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These swimming blocks are visible both on the TV & monitor. As far as the source most rips i have done are progressive with the odd one being interlaced and some hybrids. I have always used bi-directional encoding and gmc, however quater pixels i have not enabled and pychovisual enh. is none. (standard pro settings). Would adjusting these settings help and under what circumstances?

When i i capture a jpeg and view it the blocks do not seem very noticalbe at all. I am wondering if the video card is too blame? I have heard some talk that the ATI cards (like the 9100) have improved graphics and divx movies look smoother. Perhaps...
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Old 29 Apr 2003, 10:36 AM   #9
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Try encoding without GMC.

You might want to try and update your video card drivers.
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