NeoScene 1.3.4

321 wrote on 7/13/2009, 10:18 AM
When I capture from HV20 and convert to Cineform avi using "maintain source frame format" and then match media in Vegas, the project properties reports field order as "none (progressive scan)". Shouldn't the Cineform avi be interlaced?

I'm using Vegas Platinum 9.0b (32-bit). I'm posting here because this is where NeoScene is often discussed.

Comments

David Newman wrote on 7/13/2009, 10:45 AM
It is an AVI limitation, see here for the workaround.

http://techblog.cineform.com/?p=1407

321 wrote on 7/13/2009, 12:03 PM
I've read that link before. I'm using Vegas Platinum 9 and not Vegas Pro. In Platinum, the Cineform avi (using Maintain source frame rate) shows as progressive. Is Cineform avi progressive? If so, then Platinum is reporting this correctly and may be just be a Pro problem.

If the Cineform avi using the above method is progressive, then wouldn't the deinterlace button produce the exact same file?
321 wrote on 7/13/2009, 5:20 PM
David
I did a few more capture and converts using NeoScene 1.3.4 and this is what Vegas match media tells me:

HDV>match source frame format=progressive Cineform avi
HDV>deinterlace=progressive Cineform avi
HDV(PF24)>match source frame format=progressive Cineform avi

I also went back to v 1.3.2 and had the same results. Everything seems to be showing progressive.

If all this is normal, please let me know and I'll quit worrying about it.

Thanks
John_Cline wrote on 7/13/2009, 7:19 PM
All the Vegas Match Media button does is look at the image dimensions and frame rate. There is no flag in an .AVI header that indicates whether the file is interlaced or which field is dominant. If you know for a fact that the file is interlaced and the upper field is first, you must tell Vegas by manually setting the file's properties.

Neither Vegas nor any other NLE of which I am aware contains any code that will actually look at the video itself and discern exactly what it is. The TMPGEnc 4.0 Express encoder is the only program that I know of that will do this.

http://tmpgenc.pegasys-inc.com/en/product/te4xp.html

Although, unless you need the encoding capabilities of TMPGEnc, $100 is a lot of money to just determine if an AVI file is interlaced and what field order.