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Mixed SD and HD footage - what to do?

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Niklas Wikman
Mixed SD and HD footage - what to do?
on Dec 28, 2015 at 5:52:18 pm

9 mins long, 7 mins is DV50 PAL, 1024x576.

The rest is 720P50

If I place the HD footage on the SD timeline, it scales down just fine. But I do get moving artifacs, or rather a sense of "film". I guess thus is because of the default frame rate.

Is there anythin I can do to make the HD footage "mix" better with the SD footage? You also see the effect in dissolves between the HD and SD footage.


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Shane Ross
Re: Mixed SD and HD footage - what to do?
on Dec 28, 2015 at 7:11:32 pm

[Niklas Wikman] "DV50 PAL, 1024x576."

How is your SD footage this dimension? That isn't the normal dimensions for PAL SD. 720x576 is.

Shane
Little Frog Post
Read my blog, Little Frog in High Def


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Niklas Wikman
Re: Mixed SD and HD footage - what to do?
on Dec 28, 2015 at 7:35:44 pm
Last Edited By Niklas Wikman on Dec 28, 2015 at 7:37:29 pm

Of course it is 720x576. But since it is widescreen, the ref movie plays at 1024x576.

I guess the best thing would be to use either Episode 6 or perhaps Compressor and transcode the 720P50 footage to SD....?



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Dave LaRonde
Re: Mixed SD and HD footage - what to do?
on Dec 29, 2015 at 1:41:00 am

You haven't said anything about what you need to deliver. It helps to know that.

Dave LaRonde
Promotion Producer
KGAN (CBS) & KFXA (Fox) Cedar Rapids, IA


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Niklas Wikman
Re: Mixed SD and HD footage - what to do?
on Dec 29, 2015 at 5:42:25 am

Oh, sorry!

It will most likely end up on the web.

The reason for the mixed footage is that some of the parts was taken from another project, when we had made the shift from SD to HD.



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Shane Ross
Re: Mixed SD and HD footage - what to do?
on Dec 29, 2015 at 9:36:32 pm

I wish I knew what you were describing. Because I can't picture it. Some sort of artifacting is happening. I wonder if it has to do with the pixel dimensions of both formats.

Shane
Little Frog Post
Read my blog, Little Frog in High Def


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Dave LaRonde
Re: Mixed SD and HD footage - what to do?
on Dec 29, 2015 at 10:17:10 pm

Is your SD footage interlaced?

Dave LaRonde
Promotion Producer
KGAN (CBS) & KFXA (Fox) Cedar Rapids, IA


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Niklas Wikman
Re: Mixed SD and HD footage - what to do?
on Dec 29, 2015 at 10:35:45 pm

Yes, SD is interlaced. And is 90 percent of the film.

Hence the question if anything can be done with the HD footage (which is progressive).



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Shane Ross
Re: Mixed SD and HD footage - what to do?
on Dec 29, 2015 at 10:37:29 pm

If this is going to end up on the web, then you want to deinterlace the SD footage. The web doesn't display interlacing properly, only TVs do.

Shane
Little Frog Post
Read my blog, Little Frog in High Def


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Niklas Wikman
Re: Mixed SD and HD footage - what to do?
on Dec 29, 2015 at 10:51:01 pm

Dang...

I was hoping you would suggest the other way around...

So, what's the best eay to go? Compressor? Episode?

I hope I can use the final film - or are we talking about de-interlace every single footage file here?



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Dave LaRonde
Re: Mixed SD and HD footage - what to do?
on Dec 29, 2015 at 11:27:45 pm
Last Edited By Dave LaRonde on Dec 29, 2015 at 11:29:33 pm

We're talking about deinterlacing every blessed standard-definition clip. The HD stuff will be okay.

And now I understand why the 720 stuff looked like film to you -- you were putting 720p 50 clips into a 25fps timeline. You were seeing every other frame of that stuff. And if you can tell the difference between 24p and 25p, you're better than I am!

Incidentally, once you deinterlace, the SD stuff will look very filmy, too. So everything will match for you.

I think Nattress has a good deinterlacer... inexpensive, too. But I'm confident Compressor can do the trick for you.

Dave LaRonde
Promotion Producer
KGAN (CBS) & KFXA (Fox) Cedar Rapids, IA


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Niklas Wikman
Re: Mixed SD and HD footage - what to do?
on Dec 30, 2015 at 12:05:03 am

*sighs and shrugs*

Thanks Dave and Shane - you had me there.

This will be a totally new thing for me - but I guess I will have to find the best app for the job, place all the transcoded clips in a separate folder (with the original names and a suffix) and then start re-linking... Manually, I guess.

But thme main thing remains - what tool to use?



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Dave LaRonde
Re: Mixed SD and HD footage - what to do?
on Dec 30, 2015 at 1:23:40 am

I'd use Compressor since you have it. You can do batch processing so it's not quite so odious a task. I'd only batch 10 files at a time -- Compressor can get a little wiggy with any more than that.

Dave LaRonde
Promotion Producer
KGAN (CBS) & KFXA (Fox) Cedar Rapids, IA


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Nick Meyers
Re: Mixed SD and HD footage - what to do?
on Dec 30, 2015 at 2:22:15 am

"But I do get moving artifacs, or rather a sense of "film". I guess thus is because of the default frame rate."

could be you haven't rendered it yet.
remember to go to your sequnce's settings, video tab, and set Motion to "Best"

get the Nattress plugin, it. works in FCP.
nest your sequence, by dragging it from the browser into a new sequence with the same settings,
and apply the filter to the nest


nick


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