GoPro 4K and Proxy files

Steve Mann wrote on 11/13/2014, 8:01 PM

I've been playing with my GoPro Hero4 Black in 4K, 30p since I got it a couple of weeks ago. Being 4K I needed to use a proxy file for my rough cuts. (I use the original and lots of Preview RAM for the final editing). I let Vegas generate the proxy files for me and it can take upwards of an hour to make them.
But, I discovered that the GoPro makes them for me.
For example - If you use a GoPro at 4K, the DCIM folder contains two files: "GP000xx.MP4" and "GP000xx.LRV". The LRV file (apparently it's Low Resolution Video) is really an MP4 file. So rename the file to "GP000xx.MP4.svp0". Vegas is happy to use that proxy file as if it had made one itself.
(It really is Low Resolution, but it works for rough cuts).

Comments

GeeBax wrote on 11/13/2014, 8:52 PM

Thanks Steve, that's very good to know.
Geoff

PS, I just tried it and it does the same for 2.7K files as well.

John_Cline wrote on 11/14/2014, 5:13 AM

On the GoPro Hero3+ Black, it seems to generate .LRV files for everything unless you have the ProTune mode on, in which case it does not.

GeeBax wrote on 11/14/2014, 4:24 PM

I have the Hero4 Black, and it generated the LRV file in 2.7K with ProTune mode on, but I have not tried it on other resolution modes.

Taavi wrote on 10/8/2023, 11:32 AM

Wrote a Windows PowerShell script for renaming all LRV files in the current directory, to be recognised as proxy files:

Get-Childitem -Filter "GL*.LRV" |
Rename-Item -NewName { $_.Name -replace '^GL(.+)\.LRV$', 'GX$1.MP4.sfvp0' }

3d87c4 wrote on 10/8/2023, 2:27 PM

Good timing, @Taavi, I have a (second) H3+B about to be delivered. Thinking of dusting off my 3D rig...

CalciferAtlas wrote on 7/28/2024, 10:00 PM

Thank you so much! I created an account here just to say this. Vegas crashing from my 5K Hero11 footage was giving me an aneurysm. I had hours of footage, so proxy creation via Vegas would've taken ages. It's brilliant that the device automatically makes them. 👍✌️👌