Init

nixos/webcam.nix

@@ -0,0 +1,27 @@
+{ pkgs, ... }:
+{
+  services.udev.extraRules = ''
+    ACTION=="add", \
+    SUBSYSTEM=="usb", \
+    ATTR{idVendor}=="04a9", \
+    ATTR{idProduct}=="31ea", \
+    RUN+="systemctl restart webcam"
+  '';
+
+  systemd.services.webcam = {
+    enable = true;
+    description = "Canon Camera Webcam";
+    script = ''
+      ${pkgs.gphoto2}/bin/gphoto2 --stdout --capture-movie | \
+      ${pkgs.ffmpeg}/bin/ffmpeg \
+      -i - \
+      -vcodec rawvideo \
+      -pix_fmt yuv420p \
+      -threads 0 \
+      -framerate 30 \
+      -f v4l2 \
+      /dev/video0
+    '';
+    wantedBy = [ "multi-user.target" ];
+  };
+}