How to change the Scan Order of avi?

[Music Fan]

Originally Posted by WorBry

Why? Note in the screenshot, Cedocida is configured to output YUY2.

What does the output mean in this case ? Dvsd is always in yv12, right ?

[WorBry]

It means Cedocida internally converts DV 4:2:0 (PAL) or 4:1:1 (NTSC) to YUY2 for output....correctly.

http://forum.doom9.org/showthread.ph...231#post844231

[WorBry]

Originally Posted by P.J

Would you explain in depth? I'm not familiar with AviSynth and encoding =/

Which I did.

Originally Posted by WorBry

So, for the O.P's benefit, probably best not to complicate matters with alternative approaches that amount to the same thing.

P.J, just do it as described and it will work just fine.

.......And let us know how you get on. We're all rooting for you

Wonder why I bothered now.

[P.J]

Wow, thanks a lot!
Just followed your tutorial and it fixed the problem

Edit: Which script is better? the first one or this: (since I know, DV is mostly BFF)

AVISource("C:\...path...\EncodedVideo.avi", audio=false).AssumeFPS(30000,1001)
AssumeTFF()
SeparateFields()

And how to detect if my source is DV Type I or II?

[WorBry]

Originally Posted by P.J

Wow, thanks a lot!
Just followed your tutorial and it fixed the problem

There you go - I guess it did amount to a tutorial.

Originally Posted by P.J

Edit: Which script is better? the first one or this: (since I know, DV is mostly BFF)

AVISource("C:\...path...\EncodedVideo.avi", audio=false).AssumeFPS(30000,1001)
AssumeTFF()
SeparateFields()

As explained, that script is purely to confirm the field order - not to change it:

Originally Posted by WorBry

If you want to satisfy yourself that the field order is indeed changed to TFF, simply load the encoded avi file with this script:

AVISource("C:\...path...\EncodedVideo.avi", audio=false).AssumeFPS(30000,1001)
AssumeTFF()
SeparateFields()

And then, using the >> control button at the bottom of the VirtualDub screen, advance the video frame by frame. If it is TFF, the motion will be 'normal'. If it were BFF, it would jerk back and to.

Originally Posted by P.J

And how to detect if my source is DV Type I or II?

If it had been Type I you wouldn't have been able to load it with AVISynth, at least not as an AVISource using the Cedocida DV codec.

Edit: Correction on that - just dug out and tested a Type I DV.avi file that I had archived. Actually it loads OK. I recall now, what used to happen with VirtualDubMod is that you couldn't extract the WAV audio. Not a problem with VirtualDub 1.10.4. So you would have been OK even if it was Type I.

[Music Fan]

Originally Posted by WorBry

It means Cedocida internally converts DV 4:2:0 (PAL) or 4:1:1 (NTSC) to YUY2 for output....correctly.

http://forum.doom9.org/showthread.ph...231#post844231

Thus output means this setting is used when playing (decoding) it ?
Why does it have to be converted into yuy2 when played ?

[WorBry]

Originally Posted by Music Fan

Why does it have to be converted into yuy2 when played ?

It doesn't. I merely configured Cedocida for YUY2 output in this instance because ReverseFieldDominance requires YUY2. That's all.

[P.J]

Thanks again

The last problematic video is .TS H.264 50fps progressive that need to be converted to 25fps interlaced.
The source's frames are all interlaced and also duplicated (AABBCCDD, all interlaced)
How is it possible to fix it with minimal quality loss?
Not sure if I should create a new topic for it or not =/

[WorBry]

Might be a good idea, since it's not DV related.

[Music Fan]

edit : I believe I understand what you mean, I forgot that Cedocida was also used in the first script's line (and not only for re-encoding), and the video becomes yuy2 from the first line because Cedocida's output is set on yuy2. And as the video is re-encoded with Cedocida too, the input and output work at the same time.
Anyway I find it confusing, I prefer to use Avisynth conversion and configure Cedocida's input and output in yv12.

[Music Fan]

Originally Posted by P.J

Thanks again

The last problematic video is .TS H.264 50fps progressive that need to be converted to 25fps interlaced.
The source's frames are all interlaced and also duplicated (AABBCCDD, all interlaced)
How is it possible to fix it with minimal quality loss?
Not sure if I should create a new topic for it or not =/

Yes, in the Avisynth part ;
http://forum.doom9.org/forumdisplay.php?f=33

[WorBry]

Originally Posted by Music Fan

Anyway I find it confusing, I prefer to use Avisynth conversion and configure Cedocida's input and output in yv12.

Yes, like I said, I could have set it out that way, and if it was with a view to further YV12 filtering with AVISynth I would do the same i.e. output YV12 with "MPEG2 interlaced" chroma sampling. But in this instance, the ReverseFieldDominance requires YUY2, and configuring Cedocida accordingly kept it simple for the OP.

[P.J]

Just wanted to update the topic, it wasn't the video file's issue.
The hardware de-interlacer had problem while detecting the field order's flag:
http://forum.doom9.org/showpost.php?...ostcount=20658

I'll update again if I found any clue to fix it <3