YV12 to YUY2 - upconv=1 or AutoYUY2 or ConvertToYUY2

[diffid]

Hi

I have psf25 source HD mpeg2's. I'm using DGIndex -> d2v -> VDubMod.

Is there any preference to method of upsampling to YUY2? In the d2v with upconv=1 or AutoYUY2 or ConvertToYUY2.

I also have 50i source HD mpegs TFF. If I deinterlace is it better to upsample before or after deinterlace?

What deinterlace would be most suitable? mcbob, leakkernal, yadif, smooth?

Thanks in advance.

[StainlessS]

Hi, your best bet is to use 'upconv' in DGIndex, as this has access to the source
clip flags. I believe that you can have eg a progressive clip containing interlaced
frames or vice versa, this gives DGIndex the edge. The other options would rely
on you giving the correct interlaced arg and that the clip is of constant source.
Deinterlacer, guess it depends on which you prefer. :)

[tritical]

upconv in dgdecode uses linear interpolation so it is the same as converttoyuy2() in avisynth... except for the interlaced case where it does not use the 75/25 approximation that avisynth does. However, the difference is generally unnoticeable. As StainlessS said, the only real advantage to upconv in dgdecode is that it can follow the progressive frame flag... so if you trust that and want to convert to yuy2 before deinterlacing/ivtcing for some reason (generally a bad idea) then it might be handy. Theoretically, autoyuy2 should have the advantage in that scenario since it will upsample using interlaced conversion in interlaced sections of the frame and using progressive in areas that aren't interlaced (due to no motion) (which gives theoretically better results even if the content was originally down-sampled using interlaced conversion), but it all depends on how accurate the interlaced detection is. Personally, I would always upsample after ivtc or deinterlacing using progressive upsampling.

[StainlessS]

@Tritical
I'm just the someone than that steps in when you are not around,
I'm quite happy to be corrected by my better.
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