Encoding progressive NTSC material with Canopus Procoder 1.5?

[zee944]

Hey Everybody,

could somebody tell me how to encode NTSC film material to an NTSC DVD compliant .M2V?

The material is already 720x480 29.97i fps, with proper 3:2 telecined pattern. I've tried out a few variants so far in Procoder (Field order, Force Film mode etc.) with no luck. I've always ended up with ugly interlaced edges during playback. Factory-made NTSC DVDs are fine, mine is not. (I've authorized the DVD with muxman)

I use Procoder 1.5, I'd like to use this software to encode.

Thanks for any help in advance

[45tripp]

wow, 1.5,
could hardly remember is there's avisynth support...

Procoder only added a dedicated ivtc filter at version 3.

still...
no reason to mess about with even that.

dgindex,
avisynth,
encode in procoder with a generic mpwg2 template to go to 23.976 progressive,
pulldown output in dgpulldown.


tripp

[zee944]

wow, 1.5,
could hardly remember is there's avisynth support...

Procoder only added a dedicated ivtc filter at version 3.

still...
no reason to mess about with even that.

dgindex,
avisynth,
encode in procoder with a generic mpwg2 template to go to 23.976 progressive,
pulldown output in dgpulldown.


tripp

Thank you for the response!
Procoder 1.5 has AviSynth support, actually the file I want to encode is an AviSynth file. I've done the 23.976p-->29.97i conversion myself in the script, so I can make it back to 23.976. (I don't what mpwg2 is, I hope I won't need that in this case.)

Will DGPullDown convert a 23.976p M2V file into a proper 3:2 29.97i M2V format?

[manono]

Will DGPullDown convert a 23.976p M2V file into a proper 3:2 29.97i M2V format?

Yes.

I've done the 23.976p-->29.97i conversion myself in the script

Why on Earth would you do that? You get much greater encoder efficiency encoding for progressive 23.976fps.

[zee944]

I've done the 23.976p-->29.97i conversion myself in the script

Why on Earth would you do that? You get much greater encoder efficiency encoding for progressive 23.976fps.

Because I knew the DVD compliant format should be 29.97i in the end and I didn't know I have to do this conversion after the encoding.

[45tripp]

Procoder 1.5 has AviSynth support,

(I don't what mpwg2 is, I hope I won't need that in this case.)

i know,
just had to think way back...

'mpwg2' is a typo
generic mpeg2 template,
if you select a standard dvd template you won't get 23.976
as a framerate on the pulldown menu.
or rather select the dvd template and then
change dvd to user defined so you can change framerate

[zee944]

I've encoded the footage as 23.976p, and converted with DGPullDown into 29.97i. Seems fine (proper 3:2 pattern) except one thing: MuxMan says it's not perfectly DVD compliant:

Bitrate - avg: 5997114, min: 1602305 (lba 1643706), max: 7979220 (lba 1464308).
Shortest GOP has 2 fields, longest GOP has 38 fields.
Fields: 371358, VOBU: 9946, Sectors: 2267765.
Largest GOP of 38 fields exceeds DVD specification of 36, resulting DVD is non-standard.

13:58:49 Begin multiplex VMG.
13:58:49 End multiplex.
1 oddities detected, resulting DVD is non-standard. Check log for details

What should I do?

[manono]

What should I do?

Reencode using a lower GOP size. You use Procoder, right? I don't use it and thus have no idea how you choose GOPs, but you want a max GOP of 12 frames or 24 fields. The reason is that the GOP size increases after applying pulldown by a factor of 1.25. My guess is that you have it set up for 15 frames=30 fields.

[zee944]

What should I do?

Reencode using a lower GOP size. You use Procoder, right? I don't use it and thus have no idea how you choose GOPs, but you want a max GOP of 12 frames or 24 fields. The reason is that the GOP size increases after applying pulldown by a factor of 1.25. My guess is that you have it set up for 15 frames=30 fields.

You're right! GOP was set to 15. I've set it to 12 and now it's fine.

My first proper NTSC DVD. Thanks!