Changes to engine file extensions structure

src/engines/aerender/aerender_engine.py

@@ -9,7 +9,7 @@ logger = logging.getLogger()
 
 class AERender(BaseRenderEngine):
 
-    supported_extensions = ['.aep']
+    file_extensions = ['aep']
 
     def version(self):
         version = None
@@ -35,4 +35,9 @@ class AERender(BaseRenderEngine):
     @classmethod
     def get_output_formats(cls):
         # todo: create implementation
-        return []
+        return []
+
+
+if __name__ == "__main__":
+    x = AERender().supported_extensions()
+    print(x)

src/engines/aerender/aerender_worker.py

@@ -22,7 +22,6 @@ def aerender_path():
 
 class AERenderWorker(BaseRenderWorker):
 
-    supported_extensions = ['.aep']
     engine = AERender
 
     def __init__(self, input_path, output_path, args=None, parent=None, name=None):

src/engines/blender/blender_engine.py

@@ -11,6 +11,7 @@ class Blender(BaseRenderEngine):
 
     install_paths = ['/Applications/Blender.app/Contents/MacOS/Blender']
     binary_names = {'linux': 'blender', 'windows': 'blender.exe', 'macos': 'Blender'}
+    file_extensions = ['blend']
 
     @staticmethod
     def downloader():
@@ -26,10 +27,6 @@ class Blender(BaseRenderEngine):
         from src.engines.blender.blender_ui import BlenderUI
         return BlenderUI.get_options(self)
 
-    @staticmethod
-    def supported_extensions():
-        return ['blend']
-
     def version(self):
         version = None
         try:

src/engines/core/base_engine.py

@@ -9,7 +9,7 @@ SUBPROCESS_TIMEOUT = 5
 class BaseRenderEngine(object):
 
     install_paths = []
-    supported_extensions = []
+    file_extensions = []
 
     def __init__(self, custom_path=None):
         self.custom_renderer_path = custom_path
@@ -58,8 +58,7 @@ class BaseRenderEngine(object):
         path = self.renderer_path()
         if not path:
             raise FileNotFoundError("renderer path not found")
-        help_doc = subprocess.check_output([path, '-h'], stderr=subprocess.STDOUT,
+        help_doc = subprocess.run([path, '-h'], capture_output=True, text=True).stdout.strip()
-                                           timeout=SUBPROCESS_TIMEOUT).decode('utf-8')
         return help_doc
 
     def get_project_info(self, project_path, timeout=10):
@@ -69,6 +68,10 @@ class BaseRenderEngine(object):
     def get_output_formats(cls):
         raise NotImplementedError(f"get_output_formats not implemented for {cls.__name__}")
 
+    @classmethod
+    def supported_extensions(cls):
+        return cls.file_extensions
+
     def get_arguments(self):
         pass
 

src/engines/ffmpeg/ffmpeg_engine.py

@@ -23,13 +23,15 @@ class FFMPEG(BaseRenderEngine):
 
     @classmethod
     def supported_extensions(cls):
-        help_text = (subprocess.check_output([cls().renderer_path(), '-h', 'full'], stderr=subprocess.STDOUT)
+        if not cls.file_extensions:
-                     .decode('utf-8'))
+            help_text = (subprocess.check_output([cls().renderer_path(), '-h', 'full'], stderr=subprocess.STDOUT)
-        found = re.findall(r'extensions that .* is allowed to access \(default "(.*)"', help_text)
+                         .decode('utf-8'))
-        found_extensions = set()
+            found = re.findall(r'extensions that .* is allowed to access \(default "(.*)"', help_text)
-        for match in found:
+            found_extensions = set()
-            found_extensions.update(match.split(','))
+            for match in found:
-        return list(found_extensions)
+                found_extensions.update(match.split(','))
+            cls.file_extensions = list(found_extensions)
+        return cls.file_extensions
 
     def version(self):
         version = None