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Frame "split" glitch only after export

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David Hue
Frame "split" glitch only after export
on Jan 11, 2017 at 12:18:07 am

Seemingly every other time I export a version of this video, there is one single frame at some point throughout that "splits" as seen below. It does NOT appear when watching a rendered preview in Premiere (CC 2015.4, just upgraded). Only after rendering. Very frustrating. Any idea why this is and how I can avoid it on export? Please let me know if you want further details. I provided a bunch below. Thank you!



Computer specs:

Late 2013 iMac 27"
3.5GHz quad-core Intel Core i7 processor
8GB Memory
1TB storage
NVIDIA GeForce GTX 775M graphics processor with 2GB of GDDR5 memory

Footage specs:

Type: MPEG Movie
File Size: 3.97 GB
Image Size: 1920 x 1080
Frame Rate: 23.976
Source Audio Format: 48000 Hz - 16 bit - Stereo
Project Audio Format: 48000 Hz - 32 bit floating point - Stereo
Total Duration: 00:06:25:00
Pixel Aspect Ratio: 1.0

Export specs:

Type: QuickTime Movie
Codec: Apple ProRes
File Size: 1.52 GB
Image Size: 1920 x 1080
Frame Rate: 29.97
Source Audio Format: 48000 Hz - 16 bit - Stereo
Project Audio Format: 48000 Hz - 32 bit floating point - Stereo
Total Duration: 00;00;59;22
Pixel Aspect Ratio: 1.0

Video data block #1:
Frame Size = 1920 x 1080
Compressor = Apple ProRes 422 (HQ)
Quality = Most (5.00)


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Chris Wright
Re: Frame "split" glitch only after export
on Jan 11, 2017 at 5:14:20 am

the first two things that pop into my head are change video renderer to software from cuda and disable intel h.264 acceleration in preferences. if those don't work, then deselect import seq natively and delete media cache.


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David Hue
Re: Frame "split" glitch only after export
on Jan 12, 2017 at 4:31:02 pm
Last Edited By David Hue on Jan 12, 2017 at 4:31:59 pm



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David Hue
Re: Frame "split" glitch only after export
on Jan 12, 2017 at 4:33:32 pm

Good factors to consider, Chris. I'll keep them in mind if I experience this issue again.


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Dave LaRonde
Re: Frame "split" glitch only after export
on Jan 11, 2017 at 5:16:10 pm

Why are you using 23.976 footage, yet exporting 29.97?

I bet you're exporting progressive, too.

I'll make another wager: you see this happening once every 5 frames or so, and it's more visible when there's a good deal of motion in the shot.

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


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David Hue
Re: Frame "split" glitch only after export
on Jan 12, 2017 at 4:34:16 pm

Dave, your frame rate explanation makes sense. I figured frames would be interpolated to accommodate the higher frame rate, and the audio stayed in sync, so it never looked off to me. I'll definitely keep this in mind next time.


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Neal Broffman
Re: Frame "split" glitch only after export
on Jan 11, 2017 at 9:03:18 pm

If your specs on export are just a typo and you are actually exporting at 23.976 you might try making your video previews ProRes and then, if it plays without the glitch in your timeline, exporting using your previews.
And you can also try to export using Media Encoder instead of exporting directly from PP. Perhaps you have already tried this.
This might help you isolate where the problem is (assuming you are exporting the same frame rate).

Neal Broffman
One Production Place, Atlanta, GA
http://www.oneproductionplace.com
Current FIlm:
Help Us Find Sunil Tripathi
http://www.HelpUsFindSunilTripathi.com


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