Files produced by Panasonic GH5 4K All Intra 10 bits 422 4K at 400 Mbps playback stutters in Final Cut Pro

I have a mac mini 2018 3.2GHz Intel 6Core i7, when I play files video files produced by Panasonic GH5 4K All Intra 10 bits 422 4K at 400 Mbps playback stutters in final cut pro.

This format is supported as native in Final Cut pro that scrubs it just fine without conversion however playback stutters consistently

The same files play fine with the free VLC player indicating a performance issue in the software.

As those files are included in Pro Video Formats and are not standard in OS X I presume the issue is with this component.

How can I get this bug fixed? I can't play files on my Mini or any other of my mac except using VLC and when I review my projects in final cut also stutters making my work impossible

Am thinking of moving to DaVinci Resolve or trying it

[Re-Titled by Moderator]

Mac mini, macOS 10.15

Posted on Dec 6, 2019 8:46 AM

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22 replies

Dec 8, 2019 2:50 AM in response to Tom Wolsky

Here it is will keep it there for a week

https://drive.google.com/file/d/1YxqCaw9SSyUSW68gDPEr-u0cs-dj6Ba5/view?usp=sharing

fox_m

Level 6

13,652 points

Dec 8, 2019 2:29 PM in response to Interceptor121

Welcome to Metal.

Dec 8, 2019 10:18 PM in response to Interceptor121

Tom

what mac have you got?

am thinking of connecting my MacBook to the gpu and then connect the Tv with the HDMI instead of using the LG ultrafine

maybe it works

Tom Wolsky

Level 10

152,991 points

Dec 9, 2019 4:48 AM in response to Interceptor121

Late 2016 15" MBP 16 GB RAM 4 GB VRAM.

Tom Wolsky

Level 10

152,991 points

Dec 9, 2019 5:33 AM in response to Alchroma

You're right Al. I was a little surprised I could optimize the media.

Dec 14, 2019 2:06 AM in response to Interceptor121

OK I sold the LG ultrafine and bought a nice Benq 4K that connects directly to my eGPU the performance is blazing and the internal GPU is off all the time

The file play fine without conversion

Dec 8, 2019 2:17 PM in response to Tom Wolsky

to some extent when I play with better performance at 50% size it may not stutter however at best quality it does regularly. The file has CAVLC no cabac

The issue is definitely the mac mini adapter as GPU is not used for playback the additional issue is that I have a LG ultrafine 5K and therefore even when i tried the blackmagic GPU I could not connect a display to an HDMI port so the display is always driven by the mini

VLC however plays fine...I think I should have gone for an iMac but I needed a computer last year...

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Files produced by Panasonic GH5 4K All Intra 10 bits 422 4K at 400 Mbps playback stutters in Final Cut Pro