Beiträge von Vouk

This version has a bug with external codecs. Please install the latest update of DVR.

See: "Unsupported Codec and Format"

What exact version of DVR are you using?

Both NVENC and x264 can produce lossless output. Or nearly lossless. It is just a question which one is creating the smaller file size.

Just play with the Constant Quantizer (NVENC) value and CFR (x264). The lesser each value the better the quality (and the larger the file size).

There is no big difference if you encode game videos for YouTube or short films with your DSLR (at least not from the encoding point of view). In fact there are no "best" settings, its depending on your use case. Also what does "best" mean? "best encoding speed", "best quality", smallest file size?

NVENC h264 can be very fast to encode, but that depends on your GPU and CPU. With the RTX generation the resulting quality should be on par with x264.

Only use bitrate based strategies when you aim for a specific file size (i.e. to fit a film on a DVD, USB stick, ...), Otherwise I'd recommend Constant Quantizer (NVENC) or CFR (x264).

Can you enable "low level debugging" in the settings and share the logfile again?

Can you provide a sample file?

First: It is not a color range issue as the luminance channel is not affected, so it's the rgb -> yuv conversion happening inside FFmpeg.

A workaround that might help: Avoid the AfterEffects renderer and use MediaEncoder to export your comp.

btw: A color conversion from RGB > YUV (> RGB) is always lossy as the YUV color space is smaller than the RGB color space. So this is not only a Voukoder issue. It is also happening if you export with AfterEffects internal ProRes 4444 encoder.

AE works in RGB mode and not (like all other supported apps) in YUV mode.

To make it work with all encoders we need to convert from RGB to YUV first.

Maybe it's also a color range (Full/Limited) issue. Can you provide steps on how to reproduce this issue?

The DaVinci Resolve connector 0.9 finally supports the alpha channel when using at least DaVinci Resolve 18 (beta)!

Thanks for notifying.

You can change this to a better description using this website: https://crowdin.com/project/voukoder

Voukoder uses FFmpeg in the background and it does not allow to import 24bit audio.

I just thought about it and it looks like it needs to import the audio in 32bit and then resamples it to 24bit.

Would you be interested in a "Coding-Livestream" on Twitch or YouTube?

Currently on my To-Do list:

• Add VC3/DNxHD video encoder (JSON)
  • Add a new configuration for the FFmpeg encoder
  • Add translations
• Add a normalization audio filter (JSON)
  • Add a new filter configuration
• Support 24bit audio export with DaVinci resolve (C++)
  • Change voukoder to accept a newmeta parameter (i.e. _resolution)
  • Change the resolve connector to send 32bit audio data and then add _resolution=24 so we can convert it with an audio filter
• Build the new version using GitHub actions
• Test it

24 bits is not supported. Please use either 16 or 32 bits.

Does changing this help?

Can you post a mediainfo of both videos and the voukoder logfile please?

It is currently not implemented be could be added:

Encoder dnxhd [VC3/DNxHD]:
    General capabilities: dr1 threads
    Threading capabilities: frame and slice
    Supported pixel formats: yuv422p yuv422p10le yuv444p10le gbrp10le
dnxhd AVOptions:
  -nitris_compat     <boolean>    E..V....... encode with Avid Nitris compatibility (default false)
  -ibias             <int>        E..V....... intra quant bias (from INT_MIN to INT_MAX) (default 0)
  -profile           <int>        E..V....... (from 0 to 5) (default dnxhd)
     dnxhd           0            E..V.......
     dnxhr_444       5            E..V.......
     dnxhr_hqx       4            E..V.......
     dnxhr_hq        3            E..V.......
     dnxhr_sq        2            E..V.......
     dnxhr_lb        1            E..V.......

Please make sure Voukoder is not currently running or loaded in any application. The best way to do this is restart your computer and then install the update without starting any other applications first.

If the issue persists start the command-line by pressing Windows-R, entering "cmd" and then input this:

Copy and paste the contents of the voukoder.log file to this topic.

Just configure any other container format:

(In the next window in the output section)

Yes, parallel export is crashing. This is known.

After installing open the export dialog and select "Voukoder" in the format dropdown. In the Voukoder section press the Configure ... button to have access to all Voukoder settings.