python3Packages.python-ffmpeg: give ffmpeg access, run tests

pkgs/development/python-modules/python-ffmpeg/default.nix

@@ -1,24 +1,46 @@
 {
   lib,
   buildPythonPackage,
+  fetchFromGitHub,
+  ffmpeg-headless,
+  setuptools,
   pyee,
-  fetchPypi,
-  setuptools-scm,
+  pytestCheckHook,
+  pytest-asyncio,
 }:
 
 buildPythonPackage rec {
-  pname = "python_ffmpeg";
+  pname = "python-ffmpeg";
   version = "2.0.12";
   pyproject = true;
 
-  src = fetchPypi {
-    inherit pname version;
-    sha256 = "GayAr1oGSi9TwkWvGpCbLXZI6gRVANltO81Qe4jUPcc=";
+  src = fetchFromGitHub {
+    owner = "jonghwanhyeon";
+    repo = "python-ffmpeg";
+    tag = "v${version}";
+    hash = "sha256-1dhkjrg7QUtYSyEV9c88HphdcFuSCSaGJqVAQmMF/5E=";
   };
 
-  propagatedBuildInputs = [ pyee ];
+  postPatch = ''
+    substituteInPlace ffmpeg/{ffmpeg.py,asyncio/ffmpeg.py,protocol.py} \
+      --replace-fail 'executable: str = "ffmpeg"' 'executable: str = "${lib.getExe ffmpeg-headless}"'
+    substituteInPlace tests/helpers.py \
+      --replace-fail '"ffprobe"' '"${lib.getExe' ffmpeg-headless "ffprobe"}"'
+
+    # Some systems can finish before the `0.1` timeout.
+    substituteInPlace tests/test_{,asyncio_}timeout.py \
+      --replace-fail 'ffmpeg.execute(timeout=0.1)' 'ffmpeg.execute(timeout=0.01)'
+  '';
+
+  build-system = [ setuptools ];
+
+  dependencies = [ pyee ];
+
+  nativeCheckInputs = [
+    pytestCheckHook
+    pytest-asyncio
+  ];
 
-  nativeBuildInputs = [ setuptools-scm ];
   pythonImportsCheck = [ "ffmpeg" ];
 
   meta = {