DV ==> AVI ==> (Convert to YUY2?) CCE-Basic

[rkr1958]

I'm converting my son's Disney VHS tapes to DVD via DV camera passthrough to AVI CAP. The capture is AVI type 1. I have the pansonic codec loaded so I'm extracting the audio to wav using Virtualdub. I also use Virtualdub to identify the frames that I want to keep. I then build an AVS script to trim (i.e., keep) those frames. I'm then using CCE-Basic (2-pass VBR) to encode the video to .mpv. Finally ... my question ... which is preferred ...

(1) load, trim and convert the video to YUY2 then frameserve to CCE-Basic -- or --

(2) just load & trim then frameserve to CCE-Basic ?

[Abond]

Did you try both? If both worked I would say the second is right.

[rkr1958]

I did try both and couldn't really tell any difference in the video quality ... Also, I really couldn't tell a difference in encoding time either ... I guess it's a wash ... probably safer to stick with method 2.

[manono]

These things are interlaced? Then you definitely want to add a ConvertToYUY2(Interlaced=True) before feeding it to CCE. If the source is progressive, then it depends on what the source colorspace is. RGB perhaps? Then also do the ConvertToYUY2() before feeding it to CCE. If progressive YV12, then it doesn't matter where the conversion takes place. If you're not sure of the colorspace, then it might be safer to do the conversion in AviSynth.

[rkr1958]

It's a VHS CAP (Disney Movie) via DV passthrough. I'm no expert here ... aren't commerical VHS tapes progressive?

[manono]

So isn't it 29.97fps? If so, it's interlaced, since you said it was a movie, which would have been 23.976fps originally, and then telecined to reach 29.97fps. Unless you're prepared to IVTC it back to 23.976fps, thus making it progressive again, you add the line I first mentioned and encode it as interlaced with the appropriate settings in CCE.

[FulciLives]

ConvertToYUY2(interlaced=true)

That should be the last line in your script.

Here is a simple guide I wrote: CLICK HERE

That shows you how to use VirtualDubMod to edit and then import those edits into your AviSynth AVS script ... also it shows how to properly use Convolution3D with interlaced video (which is what you have). Convolution3D is a very powerfull and wonderfull "video noise" filter ... it does soften the image a bit (loss of detail) but the amount of "video noise" it removes is well worth it ... plus there are various settings so some remove less noise (with more detail kept) whereas others remove more noise (with less detail kept). There are also special settings for animation.

- John "FulciLives" Coleman

[rkr1958]

So isn't it 29.97fps? If so, it's interlaced, since you said it was a movie, which would have been 23.976fps originally, and then telecined to reach 29.97fps. Unless you're prepared to IVTC it back to 23.976fps, thus making it progressive again, you add the line I first mentioned and encode it as interlaced with the appropriate settings in CCE.

I captured the movie by VCR via RCA-cable to Sony TRV-320 DV camera and then firewire passthrough to my PC. So my DV camera did the analog to digital conversion. Wouldn't that be at 29.97fps? I'm not sure about if the VHS source was interlaced?

After reading FulciLives post ... I guess it is. FulciLives, thanks for the sample script ... I'll take a look at it.