Vouk Administrator

Yes, this time it is just missing an output file name. everything else is properly working.

I guess you have had different versions of Voukoder (Pro) installed (like Voukoder 1/Classic). Having both installed could result in incompatible templates. Can you try to create freshly new files based on the new built-in templates?

Great! So the scene test is fully working. Do you see Voukoder Pro in VEGAS Pro 23 in the "Render ..." dialog and the "Customize ..." dialog?

So having your created scene open in the Designer App can you perform a scene test, like clicking here ... ... add a video track ... ... add an audio track ... ... click on START and copy the log output from this window here:

Can you please share the whole log file?

Did you create a Voukoder Pro config/scene? Did you select exactly that scene in the VEGAS Pro template?

This entirely depends on which FFmpeg variant you are using. If libfdk-aac is included there you can use it, if not - then not. I gave up building my own FFmpeg some years ago. But there is also a special topic with this encoder: for legal reasons you can not re-distribute it as it is considered "nonfree".

Still got no reply from the VEGAS Pro team regarding this issue.

I did't get any reply to my email so far. I think they just want to keep this topic hidden. And maybe that's why they don't about it in the SDK documentation.

18.0.0.0 is okay as the plugin uses this API also for VEGAS Pro 19 API. I have to admit I'm fighting this bug for years now, and honestly I don't have a clue. It seems it's not in the code, I assumed it was something in the metadata / resources of the plugin dll, but the VEGAS Pro guys said i was wrong with this ... so this is still unknown why ít sometimes doesn't work. Sorry I don't have better news.

Can you try this with the latest Voukoder Pro release? I remember I have fixed this issue some months ago and i can also see this line in my logs: 2026-01-28 14:14:01 (trace) Starting second pass: moving the moov atom to the beginning of the file

I already did that. Maybe there is also a reason why all that HDR information is not present in the SDK pdf.

What container are you using?

Can you post your log file here where this issue appears?

[…] Seems my post just got deleted. Alright, that's a way to deal with questions, too.

I will investigate this.

Alright, so I reverted that change. And I have to wait for the VEGAS Pro developers response.

I did not receive any updates from the VEGAS Pro team yet, but can you guys test if https://d.voukoder.org/VoukoderPro-2026.0.19.msi helps? I've switched the region settings from en-us to neutral for the VEGAS Pro plugins.

Did you also test (an confirm this) with the built-in Adobe encoders encoders? The reason is After Effects is a bit "special" in terms of colors. It treats colors as RGB (and not YUV) values. But most encoders require YUV data as input. That why a lossy color format conversion is necessary. Also when using the high bit depth (16 bit per color channel) export Voukoder Pro has to remove the most significant bit, because Adobe used it for something else. That's why it is actually only 15 bit.…

I'll discuss this with the VEGAS developers.