SVCD at 480x576 - 50 fields per second?

[darkmoon]

I'm capturing video from live camera output with a miroStudio DC10 Plus (okay, so I'm on a shoestring budget) at 768x576, 25fps. I'm using TMPGEnc to encode an MPEG-2 video at 480x576, 25fps and I suspect that it's not giving me fields like it should be - I think it's blurring them into a "progressive" image.

To verify this I generated a sequence of images with very obvious fields - even lines formed a blue gradient and odd lines formed a flat red screen. I encoded the sequence and playback, both in WiMP 7 and PowerDVD XP, didn't show a video flickering between blue and red but rather a still frame which looked like a blurry average of the two frames.

I'm confused. Can PowerDVD take a 480x576 25fps MPEG-2 stream and play it back at 50Hz instead of 25?

Is there any way at all of decoding an MPEG-2 stream AS-IS? I tried running my output stream through the MPEG2DEC plugin for AVISynth but I always get a "Cannot open file" error.

[TactX]

PowerDVD will deinterlace your video.

The same for WMP since it uses the DirectShow-filter from PowerDVD to play mpeg2.

Could you post your avisynth-script ? It should be like that...

LoadPlugin("c:\somewhere\mpeg2dec.dll")
mpeg2source("c:\anywhere\DVD2AVI_project.d2v")

You need to use DVD2AVI 1.76 (get at doom9)

Edit: I forgot to mention that it would be easier to just preview in DVD2AVI.

[darkmoon]

DVD2AVI! *slaps forehead* I flat out forgot about it.

WiMP decodes the MPEG-2 to 480x576. PowerDVD decodes it to 768x576 but it botches the deinterlace in its decode. By 'botch' I mean blurs fields so I'm getting 25Hz instead of 50Hz because the blurred/deinterlaced fields are being repeated.

DVD2AVI decodes just fine - 480x576 with very clearly defined fields.