Added ffmpeg to opencv

flake.lock

@@ -20,11 +20,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1729265718,
+        "lastModified": 1729595756,
-        "narHash": "sha256-4HQI+6LsO3kpWTYuVGIzhJs1cetFcwT7quWCk/6rqeo=",
+        "narHash": "sha256-rNaLWDqjgy23Y6M3K/e7Kiyimq04ikDMrErpqgXWcV0=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "ccc0c2126893dd20963580b6478d1a10a4512185",
+        "rev": "782740762fb281404740b6b7084d356c3dab1173",
         "type": "github"
       },
       "original": {

flake.nix

@@ -12,7 +12,12 @@
 
         pythonPackages = pkgs.python312Packages;
 
-        custom-opencv4 = pythonPackages.opencv4.override { enableGtk3 = true; };
+        custom-opencv4 = pythonPackages.opencv4.override {
+          enableGtk3 = true;
+          enableFfmpeg =
+            true; # here is how to add ffmpeg and other compilation flags
+          ffmpeg = pkgs.ffmpeg-full;
+        };
 
         lapx = pkgs.python3Packages.buildPythonPackage rec {
           version = "0.5.11";