Comments

mark-y wrote on 8/19/2023, 8:10 PM

Vegas doesn't generally support open source codecs. FFV1 is an ffmpeg /libav library.

However, FFV1 is available in a VFW package, which Vegas supports. Find a third party download you trust, install it, and "see if" it shows up as a Video for Windows option in Vegas. I haven't tried to install it personally, since there are other lossless intermediates I use regularly in Vegas.

Note: Voukoder for Vegas has the FFV1 encoder, but that doesn't help you with opening the files in Vegas. Please don't install a codec "pack."

Howard-Vigorita wrote on 8/20/2023, 9:12 AM

Fwiw, when I ran ffmpeg quality analysis on Zraw transcodes to both lossless hevc and ffv1, they came up with 100% matching across the board with every metric. I've never been able to get Vegas to read ffv1, but it loads lossless hevc just fine.

john-romein wrote on 8/21/2023, 12:53 PM

Thanks Howard and Mark. To date I've not been able to load an FFV1 file. And I do have Voukoder, but as stated it is only encoder of FFV1. I did install the K-lite pack (against recommendations)....and still can not get the FFV1 decoded/loaded. Right now I can only use OpenShot to edit FFV1 files....but I sure like to use the more powerful Vegas Pro. I'm hoping some day Vegas Pro will open these files.

mark-y wrote on 8/21/2023, 1:36 PM

@john-romein I need to refine my statement a bit. FFV1 VFW decoder should be available in the ffdshow library, which carries quite a bit more confidence with editors than K-Lite (which may replace system codecs that Vegas needs).

That said, I would absolutely start with a fresh backup image or Windows installation to be on the safe side. As far as getting rid of K-Lite, you may need to do that anyway. Good luck.

The official Vegas FAQ on ffdshow and codec packs is here.

https://www.vegascreativesoftware.info/us/forum/faq-why-won-t-vegas-open-my-file-correctly-codecs-converters-etc--104572/

 

rgr wrote on 3/30/2025, 7:16 AM

Thanks Howard and Mark. To date I've not been able to load an FFV1 file. And I do have Voukoder, but as stated it is only encoder of FFV1. I did install the K-lite pack (against recommendations)....and still can not get the FFV1 decoded/loaded. Right now I can only use OpenShot to edit FFV1 files....but I sure like to use the more powerful Vegas Pro. I'm hoping some day Vegas Pro will open these files.

I know that installing -Lite makes Vegas read FFV1 (just like installing the UT Video codec makes it visible to Vegas). But is there an alternative method? I don't really want to install this pack.