Glitches w Canon C70 4k60 Long GOP on Resolve 17.4

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Jason Montalvo

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Glitches w Canon C70 4k60 Long GOP on Resolve 17.4

PostThu Dec 30, 2021 6:26 pm

I have heard about this issue on the forum before but haven't seen a resolution yet. I started having this issue on my iMac Pro, but current have upgraded to an M1 Max chip and still seeing glitches. on timeline and export. Does anyone know of a work around?

Attached Screenshots.
Screen Shot 2021-12-30 at 1.16.48 PM.jpg
Screen Shot 2021-12-30 at 1.16.48 PM.jpg (727.39 KiB) Viewed 1042 times


Screen Shot 2021-12-30 at 1.18.14 PM.jpg
Screen Shot 2021-12-30 at 1.18.14 PM.jpg (893.87 KiB) Viewed 1042 times


This last one is a few frames past the glitch, you can see it's pulling from the next clip in the timeline:
Attachments
Screen Shot 2021-12-30 at 1.18.30 PM.jpg
Screen Shot 2021-12-30 at 1.18.30 PM.jpg (641.27 KiB) Viewed 1042 times
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Jason Montalvo

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Re: Glitches w Canon C70 4k60 Long GOP on Resolve 17.4

PostMon Jan 03, 2022 12:14 pm

Bumping this up to hopefully get a response.
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steve oakley

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Re: Glitches w Canon C70 4k60 Long GOP on Resolve 17.4

PostMon Jan 03, 2022 3:24 pm

I've seen this on MBP intel i7 OS12.1 with videos on web pages. looks to be an OS level bug since it affecting more than one app.
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Jason Montalvo

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Re: Glitches w Canon C70 4k60 Long GOP on Resolve 17.4

PostTue Jan 04, 2022 4:06 pm

Thanks for your input! Will try and contact BM today as I think they're back from holiday.
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ZRGARDNE

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Re: Glitches w Canon C70 4k60 Long GOP on Resolve 17.4

PostThu Jan 06, 2022 9:18 pm

What codec are you exporting too? I would try Prores instead of h.264/5 if you haven't already.
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41jordan

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Re: Glitches w Canon C70 4k60 Long GOP on Resolve 17.4

PostMon Jan 17, 2022 2:40 pm

I am having the same issues, I've tried exporting in different codecs and the export still has the glitch, the glitches happen on the timeline as well but when you create optimized media for the entire timeline the glitches on the timeline are gone but the glitches still happen on export. The ONLY workaround I found is if your select all the video clips on the timeline and right-click -> Render in place, this will render all the clips in the timeline in apple prores of your flavor choice then swap the clips out on your timeline with those renders, the glitching is gone on the timeline and on final export
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timberthrax

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Re: Glitches w Canon C70 4k60 Long GOP on Resolve 17.4

PostWed Jan 19, 2022 8:26 pm

This is happening to me as well on M1 Mac Macbook Pro. Further reports have been made here: https://www.reddit.com/r/davinciresolve ... s_imac_m1/

My footage is Sony and the other users are reporting it is happening on iPhone and Cannon gear. I am also having strange timing glitches with DJI footage.

I think we need some BlackMagic eyes on this. There appears to be playback and rendering issues on M1 macs across various footage.
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41jordan

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Re: Glitches w Canon C70 4k60 Long GOP on Resolve 17.4

PostWed Jan 19, 2022 8:29 pm

This also happens on M1
So this glitching is happening on;
M1
M1 Pro
& M1 MAx
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brianwahl

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Re: Glitches w Canon C70 4k60 Long GOP on Resolve 17.4

PostThu Jan 27, 2022 6:20 pm

I'm having the same issue. MacBook Pro (2022, M1 Max chip, Mac OS 12.1 Monterey).

I mostly shoot in 24p, and I'm seeing it in that footage quite a bit.
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Jason Montalvo

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Re: Glitches w Canon C70 4k60 Long GOP on Resolve 17.4

PostTue Feb 01, 2022 10:35 am

Bumping this up. Can anyone from BM provide some insight? I called them and got the... we haven't heard of this happening answer.
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Jason Montalvo

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Re: Glitches w Canon C70 4k60 Long GOP on Resolve 17.4

PostWed Feb 02, 2022 11:10 am

Update:

Got this response from the support team.

At this time, try this:
1.
in Resolve▸Preferences…▸System▸Decode Options disable the hardware acceleration of h.264/h.265, save, restart the application.

2.
Upon the restart, open the project and perform the Playback▸Delete Render Cache▸All

3.
in Resolve▸Preferences…▸User▸Playback Settings, set the mode to disabled.


This work, but limits the horsepower of the laptop. So I'm thinking for the time being I'll change these settings just before doing an export of the project. Hope this helps, and looking forward to some type of update to DR.
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Uli Plank

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Re: Glitches w Canon C70 4k60 Long GOP on Resolve 17.4

PostWed Feb 02, 2022 11:14 am

Might be up to Apple. Early versions of Monterey couldn't even handle their own ProRes codec in all flavours!
Did you try under Monterey 12.2?
The software may be free, but the hardware needed for smooth performance is not.

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Jason Montalvo

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Re: Glitches w Canon C70 4k60 Long GOP on Resolve 17.4

PostMon Feb 07, 2022 9:47 am

Tried 12.2 and the same thing happens.
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Mark Foster

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Re: Glitches w Canon C70 4k60 Long GOP on Resolve 17.4

PostMon Feb 07, 2022 3:36 pm

prores should also not resolved by 12.3 beta

also possible that apple has changed prores and now all
hardware and software manufacturers would have to improve?
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Mark Foster

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Re: Glitches w Canon C70 4k60 Long GOP on Resolve 17.4

PostMon Feb 07, 2022 7:49 pm

or apple has responded even non-licensed manufacturers and do some changes?



https://support.apple.com/en-us/HT200321

also interesting who is officially licensed for proresRAW (December 06, 2021) - not many:

Screenshot 2022-02-07 at 20.44.46.jpg
Screenshot 2022-02-07 at 20.44.46.jpg (226.76 KiB) Viewed 257 times
cMP 5.1 2x3,46/96GB/2x2TB SSD/4x4TB/7101A 4x2TB 970evo+/HP1344/BMD4k/RadeonVII
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Jason Montalvo

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Re: Glitches w Canon C70 4k60 Long GOP on Resolve 17.4

PostMon Mar 07, 2022 6:56 pm

Looks like we got an update today!

Thank you Blackmagic 17.4.5

What's new in DaVinci Resolve 17.4.5
Improved nested timeline decompose for audio, plugins and automation.
Support for decoding 6K and 8K clips from the Sony Venice 2.
Faster 12K Blackmagic RAW decode and playback on Apple silicon.
Ability to set output colorspace in DaVinci YRGB projects.
Addressed Dolby Vision tone mapping for DaVinci YRGB projects.
Addressed layout and refresh issues after using the cinema viewer.
Addressed an issue with missing Text+ fonts in Mac OS Monterey.
Addressed issues when extruding 3D text from specific TrueType fonts.
Addressed retime and mixed frame rate issues when importing AAFs.
Addressed an issue rendering additional outputs with data burn-in.
Addressed trims not applied from imported Dolby Vision 2.9 XML metadata.
Addressed ProRes 422 artifacts for some rendered clips on Apple silicon.
Addressed playback glitches for some long GOP formats in Apple silicon.
General performance and stability improvements.
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Steve Alexander

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Re: Glitches w Canon C70 4k60 Long GOP on Resolve 17.4

PostMon Mar 07, 2022 8:33 pm

Jason - did you install this and confirm that it actually fixes the issue you were having? That would be great, wouldn't it?
Resolve Studio 17.4.6 | Fusion Studio 17.4.6 | Win 11 Pro (21H2) | i9-7940x, P4000 (471.41, 8GB VRAM), 64GB RAM, M.2 boot, SSD scratch, RAID10 data | (laptop) 16" MacBook Pro M1 MAX, 32 GPU cores, 64 GB RAM, 2 TB SSD, Monterey 12.3.1

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