refactor: enhance audio loading with error handling and import checks

comfy-nodes/external_audio.py

@@ -1,14 +1,13 @@
-import os
 import io
-import torchaudio
 from folder_paths import get_annotated_filepath
 
+
 class ComfyUIDeployExternalAudio:
     RETURN_TYPES = ("AUDIO",)
     RETURN_NAMES = ("audio",)
     FUNCTION = "load_audio"
     CATEGORY = "🔗ComfyDeploy"
-    
+
     @classmethod
     def INPUT_TYPES(cls):
         return {
@@ -29,30 +28,55 @@ class ComfyUIDeployExternalAudio:
                     "STRING",
                     {"multiline": False, "default": ""},
                 ),
-            }
+            },
         }
-    
+
     @classmethod
     def VALIDATE_INPUTS(s, audio_file, **kwargs):
         return True
 
-    def load_audio(self, input_id, audio_file, default_value=None, display_name=None, description=None):
-        if audio_file and audio_file != "":
-            if audio_file.startswith(('http://', 'https://')):
-                # Handle URL input
-                import requests
-                response = requests.get(audio_file)
-                audio_data = io.BytesIO(response.content)
-                waveform, sample_rate = torchaudio.load(audio_data)
+    def load_audio(
+        self,
+        input_id,
+        audio_file,
+        default_value=None,
+        display_name=None,
+        description=None,
+    ):
+        try:
+            import torchaudio
+
+            if audio_file and audio_file != "":
+                if audio_file.startswith(("http://", "https://")):
+                    # Handle URL input
+                    try:
+                        import requests
+
+                        response = requests.get(audio_file)
+                        audio_data = io.BytesIO(response.content)
+                        waveform, sample_rate = torchaudio.load(audio_data)
+                    except Exception as e:
+                        print(f"Error loading audio from URL: {e}")
+                        return (default_value,)
+                else:
+                    # Handle local file
+                    try:
+                        audio_path = get_annotated_filepath(audio_file)
+                        waveform, sample_rate = torchaudio.load(audio_path)
+                    except Exception as e:
+                        print(f"Error loading local audio file: {e}")
+                        return (default_value,)
+
+                audio = {"waveform": waveform.unsqueeze(0), "sample_rate": sample_rate}
+                return (audio,)
             else:
-                # Handle local file
-                audio_path = get_annotated_filepath(audio_file)
-                waveform, sample_rate = torchaudio.load(audio_path)
-            
-            audio = {"waveform": waveform.unsqueeze(0), "sample_rate": sample_rate}
-            return (audio,)
-        else:
+                return (default_value,)
+        except ImportError as e:
+            print(f"Error: torchaudio not installed or cannot be imported: {e}")
             return (default_value,)
 
+
 NODE_CLASS_MAPPINGS = {"ComfyUIDeployExternalAudio": ComfyUIDeployExternalAudio}
-NODE_DISPLAY_NAME_MAPPINGS = {"ComfyUIDeployExternalAudio": "External Audio (ComfyUI Deploy)"}
+NODE_DISPLAY_NAME_MAPPINGS = {
+    "ComfyUIDeployExternalAudio": "External Audio (ComfyUI Deploy)"
+}