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High quality screen recording

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Joined
Feb 4, 2012
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2
CPU
i5 4430
Graphics
GTX 950
I'm running 10.12.6 on an i5 4430 with a GTX 950 connected to a 4K screen.

I'd like to record my screen in 4K@60Hz with H.264 encoding. I haven't been able to get this to work.

I have two separate problems:

1) Unable to output 60Hz from GPU
2) Unable to capture screen using hardware support

I'm hoping to fix the first problem by purchasing a DP -> HDMI adapter (https://tinyurl.com/yd9vjnxg).

I'm unsure how to fix the second problem. I've been using ffmpeg with something like:

ffmpeg -f avfoundation -s 3840x2160 -r 60 -i 0:0 -c:v libx264 recording.mkv

But this maxes my CPU and records at about 10fps.

When ffmpeg runs, it says:

IOVARendererID property not found
AVDCreateGPUAccelerator: Error loading GPU renderer

So it looks like it's trying to use hardware acceleration but failing. Is there any way to make this work?

I tried compiling ffmpeg from source with CUDA support but couldn't make that work.

I also looked into Intel QuickSync to utilise my HD4600 iGPU, but couldn't figure that out.

Any suggestions would be greatly appreciated. Thanks
 

slim.jim

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Joined
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Motherboard
MSI Z97 Gaming 9 AC
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i7-4790K
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RX 5700 XT
Mac
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Have you tried using Quicktime to make the recording?
 
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