Sam W 6d1961cbbd | ||
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ntv2 | ||
ntv2-gst | ||
flake.lock | ||
flake.nix | ||
license.txt | ||
readme.md |
readme.md
AJA Video Cards ❤️ Nix
This repo contains a Nix flake containing the open source AJA driver, utilities and gstreamer plugin. This allows you to use Aja video IO cards on NixOS.
Usage
- Add the flake to your system flake's inputs.
- Include the nixos module in your config:
... nixosConfigurations = { mymachine = nixpkgs.lib.nixosSystem { system = "x86_64-linux"; modules = [ # ... your other modules ... ajantv2.nixosModules.default ]; }; ...
- Enable the module by adding the following to your system config:
ntv2.enable = true;
Gstreamer
Summon a quick network stream: gst-launch-1.0 ajavideosrc input-channel=0 mode=29 ! videoconvert ! jpegenc quality=20 ! multipartmux boundary="--videoboundary" ! tcpserversink host=0.0.0.0 port=6969
NB: You must select the video mode to match what's on the input. Otherwise you will see something like:
Setting pipeline to PAUSED ...
Pipeline is live and does not need PREROLL ...
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
WARNING: from element /GstPipeline:pipeline0/GstAjaVideoSrc:ajavideosrc0: Signal lost
Additional debug info:
gstajavideosrc.cpp(1324): gst_aja_video_src_create (): /GstPipeline:pipeline0/GstAjaVideoSrc:ajavideosrc0:
No input source was detected - video frames invalid
You can find all the supported video modes with: gst-inspect-1.0 ajavideosrc
.