Saw this in archived mailing list, but I never saw the actual email from Rob Prowel: Rob Prowel <https://www.mail-archive.com/[email protected]&q=from:%22Rob+Prowel%22> Sun, 16 Nov 2025 17:18:33 -0800 <https://www.mail-archive.com/[email protected]&q=date:20251116>
Does the AppImage image contain active and working CUDA/nvenc or is it just a fallback to CPU encoding? My testing seems to indicate the latter, as I'm seeing zero difference in encoding times between libx264 and nvenc.
My ffmpeg transcoding scripts always show about a 1/6th encoding time when
using nvenc.
Rob, the AppImages are created on computers with different graphics cards/capabilities then what a user may have and therefore you will not get the same nvenc/CUDA speedups unless you built the binary yourself. There seems to be no way to create an AppImage that accomodates all of the variations.
Thanks. That answers my question. I will build my own version, On 11/17/25 3:50 PM, Phyllis Smith wrote:
Saw this in archived mailing list, but I never saw the actual email from Rob Prowel:
Rob Prowel <https://www.mail-archive.com/[email protected] gg.org&q=from:%22Rob+Prowel%22> Sun, 16 Nov 2025 17:18:33 -0800 <https://www.mail-archive.com/[email protected] gg.org&q=date:20251116>
Does the AppImage image contain active and working CUDA/nvenc or is it just a fallback to CPU encoding? My testing seems to indicate the latter, as I'm seeing zero difference in encoding times between libx264 and nvenc.
My ffmpeg transcoding scripts always show about a 1/6th encoding time when using nvenc.
Rob, the AppImages are created on computers with different graphics cards/capabilities then what a user may have and therefore you will not get the same nvenc/CUDA speedups unless you built the binary yourself. There seems to be no way to create an AppImage that accomodates all of the variations.
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participants (2)
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Phyllis Smith -
Rob Prowel