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Evaluating VisionLab and I have questions

Posted: Mon, 1st Dec 2008, 8:36pm

Post 1 of 6

khobar95_old

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I'm working with the demo version of VL and I'm wondering - are there any options missing? Import/export in particular?

I use Liquid to handle the HD video from my Sony, and I can output .mov files that I can import into VL. The video is interlaced. That's not a big issue - I used VL to do a lightsaber render, but the interlacing makes it a bit more challenging.

I shot some footage with an HV30 in 24PF mode. Of course Liquid doesn't support that mode. So I used Edius Neo and its CanopusHQ codec. I can import into Neo and then export as an .avi (Canopus HQ AVI or Canopus Lossless AVI). However, both of these look a bit funky once in VL - kinda like DV, only bigger. The resulting .mov file looks okay - the jaggies are gone, but the aspect ratio is 4:3 (import file was 1440x1080 1.33 PR). And it plays okay, too.

I then reimported the same file except this time I used 1920x1080 and 1:1 PR. Again the output .mov file looked good with no jaggies, but this file stutters.

My other choice is to export the m2t file, but VL doesn't seem to support that.

End goal - get 24p from the Canon into VL for fx work.

Thoughts?
Posted: Tue, 2nd Dec 2008, 2:29am

Post 2 of 6

Axeman

Force: 17995 | Joined: 20th Jan 2002 | Posts: 6124

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SuperUser

VisionLab only works with .mov or .avi files. As far as missing options in the demo, there is only one missing option that I know of as far as import/export: The demo cannot render with embedded alpha channels. Due to the watermark system, this feature is disabled. Otherwise, it will function exactly as the full program does.

In the area of working with 24p footage, there is not any problems with that on VisionLab's end of things, so long as you can capture the footage and convert it to .mov or .avi format. You might look at Quicktime Pro for the conversion, its $30, but it will cover all your bases. I highly recommend it. Perhaps someone who is using an HV30 can detail the pipeline they are using to get the footage into VisionLab.
Posted: Tue, 2nd Dec 2008, 3:30am

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khobar95_old

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Thanks Axeman.

It's my luck trying to get different apps to play well together. Your suggestion of QTPro sounds good.
Posted: Wed, 3rd Dec 2008, 12:55am

Post 4 of 6

khobar95_old

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Quicktime pops up the following message:

"Additional software is required for Quick Time to playback this media. It may be available from the Quick Time Components page.

Make sure your internet network connection is active, then click the Continue button to check for the software."

Clicking the button brings me to the Quick Time page, but there are no relevant downloads (and QT doesn't say what additional software is needed or why).

My luck is holding. <sigh>
Posted: Wed, 3rd Dec 2008, 1:14am

Post 5 of 6

Axeman

Force: 17995 | Joined: 20th Jan 2002 | Posts: 6124

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SuperUser

Hmmm, that's annoying. I know I can play m2t in Quicktime, but I'm not sure which component is actually handling them. Searching around a bit for a solution, I ran into this software:

http://www.squared5.com/

Which is free and should be able to convert your mpeg (.m2t) files to other Quicktime formats. You might give it a try.
Posted: Wed, 3rd Dec 2008, 4:19pm

Post 6 of 6

khobar95_old

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Very interesting Axeman. I downloaded that app and it does what it says nicely. I loaded a 24fps avi file into Neo, exported it as a 24fps mpg, imported that into MPEG Streamclip, exported that to a .mov, and I imported that into VLS - it came in as 24fps 1920x1080 progressive.

I then exported that as an AVI and it looks very good. I'm sure I can hone the workflow better - this was just a dirty test to see if the various components would at least play together.

As an interesting bonus, the .mov export from MPEG Streamclip imports into Commotion Pro, so that's a big bonus too.

Now, one thing I noticed that's odd - the .mov from MPEG Streamclip plays smoothly in QTAlternative. However, if I import this .mov into FXHome VLS and then export it as a .mov, that file doesn't play smoothly in QTAlternative (using animation, 23.98 fps, and millions of colors). Even trying video instead of animation results in stuttering.

None of the .mov formats will come into Liquid. However, I can import the resulting .avi file from FXHome VLS.

All in all, with your help I now seem to be able to pass video files back and forth among Liquid, Neo, FXHome VLS, and Commotion Pro. Thank you again!