Vouk

Only the MacOS version currently supports FFmpeg 9. Because FFmpeg 8 was not available on brew anymore. But I've planned the general FFmpeg upgrade for the 2027 version of Voukoder Pro. It will be there soon.

I need to investigate it. But you can use that SETPARAMS filter to set these parameters manually.

I need to check this again. I haven't worked with this part for literally years.

[…] Yes, it is actually exactly there for this case. It allows you to change the color space info that gets sent from the host nle to voukoder. But just, this won't get used in most cases. But ... can you ask again in a small, simple sentence what you want me to change? :D

And? Does it help to change the height here?

I don't understand what you mean with "32 bit float", can you explain this? I'm using this "32 bit float" in Voukoder Pro usually only for audio encoders to send the audio data from the NLE to Voukoder Pro, where do you see this for video? Use the next higher value when in doubt.

What if you change the "Quality" value? Does this have some effect?

Good Idea! But I installed the v143 CRT libraries for ages by default with the installer. I have upgraded this today to the latest v145 version as i have changed/updated the C++ version some times before without upgrading this file. Please give me a feedback if this helped in the 2026.2.5 version.

The likely culprit is a mismatch in the color range description. The buffer source declares range=1 (full range), but the scale filter is told in_range=tv (limited range). There's also a possible height issue — 1620 is unusual and the scale filter here isn't actually resizing, just converting format/range, so a scale init failure often traces back to inconsistent color parameters like this range conflict. Error -11 is EAGAIN, which FFmpeg surfaces when the graph can't be configured with the…

Yes, sorry, you are right. I was confused with NVidia's naming strategy and mixed up the Quadro RTX 4000 series with the usual gaming series (like RTX 4090, 4080, and so on). To be completely open, this depends entirly on the FFmpeg you are using. The listed formats in the designer are auto detected and read from FFmpeg. So you can either build your own FFmpeg (in version 8, dynamic libs, NVidia headers in at least version 13.0) or you have to wait for an update from me (if you prefer to use…

Hi, You've actually already discovered the important part yourself. Let me try to explain why it behaves the way it does, and answer your final question. 1. Why AMF replaces HLG with PQ and drops the matrix This is a limitation of the AMD AMF HEVC encoder itself, not of Voukoder or your Scene setup. The color node in your Scene (range: tv, matrix: bt2020nc, primaries: bt2020, transfer: arib-std-b67) is correct — that's exactly what you want. But hevc_amf doesn't reliably write the VUI color…

The hevc_nvenc encoder is exactly the NVIDIA (GPU) HEVC encoder. But my info reports that yuv422 10 bit got introduced with the rtx 50 series, not with the rtx 40 series. […]

Starting with this build, Ingestor ships FFmpeg with the installer. You no longer need to grab FFmpeg yourself or add anything to your PATH — a complete, matching set of libraries is placed right next to the plug-in. A few things worth knowing: It's FFmpeg 9.x (stock LGPL, no GPL/non-free components), built with hardware-decode backends enabled. AV1 works out of the box. The bundled build includes the dav1d software decoder, so AV1 clips (OBS captures, etc.) decode even without GPU AV1…

The fully featured test version will most likely be available to down load next weekend.