XVID - interlaced encoding

[fberreth]

Hello,

I'm trying to encode my NTSC DV movies with XVid. I use avisynth, my DV decoder produces RGB output that has the fields weaved together.

With avisynth I normally separate fields, convert to YUY2, apply some noise reduction, cropping, horizontal resize and then weave it back together. In VDub I apply XVid encoding.

I noticed that if I enable interlaced encoding in XVid or not doesn't make any difference in the file size. Also, if I don't weave the fields back together in AVISynth then on playback I see the fields one after the other (not weaved). I use ffdshow to decode the video & enable deinterlacing (for watching on Monitor).

What I'm puzzled about is that it doesn't matter if I enable interlaced encoding in XVid or not. Seems like the result is the same. How can that be? What input stream is XVid expecting?

Thanks,
Frank.

[sysKin]

Originally posted by fberreth
What I'm puzzled about is that it doesn't matter if I enable interlaced encoding in XVid or not. Seems like the result is the same. How can that be? What input stream is XVid expecting?What you're doing is OK, I have no idea what can be wrong. It might be another devapi3 bug :/

I'll check devapi4 soon. Also, you reminded me, I have to make VHQ and b-frames working with interlaced video ;)

Radek

[fberreth]

Hi SysKin,

where can I get the new XVid with devapi4? BTW, I didn't mention it, but I downloaded Koepi's latest XVid test binary a few weeks ago to test this. Don't know if that has devapi3 or 4 or whatever but I sure would like to have this working ...

Thanks for your help,
Frank.

[Tommy Carrot]

All public builds are dev-api3. If you wanna test dev-api4, you'll have to compile it.

[fberreth]

Can you make a build available to me? Then I can test if that dev-api4 is going to fix it.
Other question, when will dev-api4 be stable enough to be in the "public" binaries?

[sysKin]

OK, news update :)

'Interlaced' thingy seems to work in devapi4. I also just fixed it to work with b-frames correctly (no more artifacts) and GMC (same). VHQ is also updated, but it isn't really what I wanted to do - what I wanted is quite complex and would make VHQ exactly twice as slow.

@fberreth: visit us on IRC - we could use someone who's actually using xvid with interlaced video, and can test stuff for us :)

Radek