What is StreamFX using when "Resize Output" is selected for the NVENC codec?

[jukofyork]

Just looking through the code and trying to work out what scaling code is invoked when using the "Resize Output" option with StreamFX's NVENC codec?

I can see ffmpeg_instance::initialize_sw() has a call using libswscale's "SWS_SINC" filter, but this seems to only be for the "AVMEDIA_TYPE_VIDEO" codec.

Also, do you have any idea what stock OBS is using when the "Resize Output" option is selected? I can see a call using libswscale's "SWS_POINT" filter but again not 100% sure if this is just some fallback option for certain codec(s).

[Xaymar]

If you're talking about which scaling method is used:

• Sinc with full chroma and high accuracy for Software mode, i.e. enabling Resize Output.
• Whatever you selected in the Video tab for Hardware mode.

For OBS Studio, please ask in their own forums and messaging tools.