Maintain Interlace

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Maintain Interlace
by Marc Newy on Oct 19, 2012 at 9:17:01 am

Export 1080/ 50i video project and maintain interlace.
Compression H264 as a MP4 file.
I have tried in Compressor 4, but it always outputs as Progressive.

Please advise.
Thanks.

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Re: Maintain Interlace
by Craig Seeman on Oct 19, 2012 at 4:13:26 pm

Is this for Broadcast?
I can't see any other reason to maintain interlace.
Enable Frame Controls and then set it to Off manually.

Like so many posts you do state conclusively that you're getting progressive but don't explain how. It's quite possible that your analysis is incorrect. I'm just saying this as a reminder for people who claim "results x" but unless I know your vision and/or glasses I have no idea if you're seeing things correctly. It's like claiming a color shift but never mentioning that you're using a calibrated monitor (or not). Maybe your correct but it becomes an assumption without providing how you've determined the results.

Please check file in something like MediaInfo.

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Re: Maintain Interlace
by Marc Newy on Oct 19, 2012 at 4:40:28 pm

Hi Craig,

Thanks for your response.

Yes, it is for broadcast, I need to FTP the footage and these are the specs I've been given.

As you suggest , I'll set frame controls and then turn off.

Material is shot as 1080/50i and edited as interlaced, now I need to compress as interlaced.

Appreciate anymore input.

Regards.

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Re: Maintain Interlace
by Marc Newy on Oct 19, 2012 at 6:49:55 pm

No luck with turning OFF frame controls, compressor is still outputting Progressive.

I have been checking video results by re-import to FCPX.

Also used VIDEOSPEC

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Re: Maintain Interlace
by Craig Seeman on Oct 19, 2012 at 7:59:10 pm

Let's try something else then.
Enable Frame Controls and set Output Fileds to Same as source or maybe even Top or Bottom directly (depending on your source of course).
BTW if it's for Broadcast are they actually asking for Main Profile? Some may ask for High which Compressor can't do.

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Re: Maintain Interlace
by Marc Newy on Oct 25, 2012 at 6:27:02 pm

Hi Craig,

Tried those suggestions.

When I export with current settings, Pro Res, all is good, interlaced.

I have also tried exporting to H264 and the file becomes progressive.

Is there a bug ?

Or I am missing a step in sending to Compressor ?

Thanks for your help.

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Re: Maintain Interlace
by Craig Seeman on Oct 27, 2012 at 1:21:06 pm

Send to Compressor? I'd avoid that. I'd export a Master file and use that. It's personal but I don't trust the reliability of Send to Compressor.
I'm wondering if Compressor doesn't allow for interlaced H.264. Personally I don't find Compressor very flexible for broadcast delivery. I use Telestream Episode for broadcast delivery .

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