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View Full Version : CCE 2.50 Interlaced to Progressive Frames (DV Cam)


Bauer Power
14th January 2003, 12:11
PAL Movies form DV to SVCD (480x576)!!
Could someone tell me, if the cce 2.50 encoder encode interlaced to progressive frames?
TMPGEnc can do that, because i get the besf gualitiy from my home movies. I want to do this with the cce 2.50 too, because i could encode it multi pass 4xVBR.
I use avisynth to write the avs script for the cce 2.50 with all importent filters i need.

Bauer Power

bb
16th January 2003, 09:49
"Interlaced to progressive": You can either encode interlaced (CCE supports that) or you can de-interlace, which you have to do in your AviSynth script (e.g. include Decomb and add a Telecide command before your other filters). There's no internal CCE deinterlacer.

For SVCDs you should always deinterlace because of the low bitrate. You can also try DVD2SVCD (if your source is an AVI file, then use its AVI2SVCD mode). If you ask me, 4x multipass is exaggerated. I wouldn't use more than three passes.

bb

Bauer Power
16th January 2003, 11:41
Thank you for this information. I will test this at the weekend.
I always use the DVD2SVCD for DVD ripping, but i don't use this
for my home avi's.

Bauer Power

SomeJoe
17th January 2003, 06:09
Even though SVCD is low bitrate, if the target viewing platform is an interlaced display (i.e. PAL TV), I would tend to disagree with deinterlacing source material that was shot interlaced to begin with (i.e. DV).

If the original material here was shot on DV (not a DV copy from a previously progressive source, like film), and you will be watching the footage on an interlaced display, I would recommend to leave it interlaced, and encode it that way. Deinterlacing an originally interlaced source loses half of the temporal information on playback, and introduces motion artifacts that are visually annoying and hard to compress, resulting in poorer looking video than if it was left interlaced.

The only reason to deinterlace originally interlaced material is if the target playback device is progressive (i.e. computer monitor). Then, an intelligent deinterlacing algorithm that selectively line-doubles or recombines fields based on in-frame motion can be applied that improves progressive-display playback.

auenf
17th January 2003, 15:08
Originally posted by SomeJoe
The only reason to deinterlace originally interlaced material is if the target playback device is progressive (i.e. computer monitor). Then, an intelligent deinterlacing algorithm that selectively line-doubles or recombines fields based on in-frame motion can be applied that improves progressive-display playback.

deinterlacing a interlaced source for a interlaced output means it will compress better (esp in mpeg2) at the expense of motion quality.

Enf...

bb
17th January 2003, 15:30
@SomeJoe:
Have you ever tried to create an interlaced SVCD? If yes, you'll probably know why everyone encodes progressive. At such a low bitrate you better deinterlace for a much better overall quality.

If your target were DVD, where you have enough bitrate, you better leave it interlaced. That's what I always recommend on the DV forum.

bb

beeebeeebeee
17th January 2003, 18:21
I concur with bb.

SVCD + interlaced = many blocky scenes

SVCD + progressive = no more/way fewer blocky scenes

SomeJoe
17th January 2003, 20:33
Obviously all of you are speaking from experience, and I have no reason to doubt you. However, what you are saying is contrary to everything I've read, thus I'm now highly confused. :confused:

Oh well. I'll figure it out at some point.

Bauer Power
21st January 2003, 15:19
I tested a lot of avs scripte and the software DVD2SVCD but all
tests have not so good results. I make my SVCD's with TMPGEnc, because
the result!!
Thank you for all your information about this topic.:rolleyes:

Bauer Power