Update app.py

app.py

@@ -17,7 +17,7 @@ def extract_frames(gif_path):
                 img.seek(img.tell() + 1)
             except EOFError:
                 break
-        return frames
+        return frames, None
     except Exception as e:
         return None, f"Error loading GIF: {str(e)}"
 
@@ -42,17 +42,16 @@ def detect_circles(frame_diff, min_radius=20, max_radius=200):
 def analyze_gif(gif_file):
     """Analyze a GIF for growing concentric circles."""
     try:
-        # Save uploaded GIF to temporary file
-        with open("temp.gif", "wb") as f:
-            f.write(gif_file.read())
+        # For Gradio, gif_file is a NamedString object with a 'name' attribute
+        gif_path = gif_file.name if hasattr(gif_file, 'name') else gif_file
 
         # Extract frames
-        frames, error = extract_frames("temp.gif")
+        frames, error = extract_frames(gif_path)
         if error:
-            return error
+            return error, []
 
         if len(frames) < 2:
-            return "GIF must have at least 2 frames for analysis."
+            return "GIF must have at least 2 frames for analysis.", []
 
         # Initialize results
         results = []
@@ -82,7 +81,7 @@ def analyze_gif(gif_file):
                         "radius": r
                     })
 
-            # Optional: Save frame with detected circles for visualization
+            # Save frame with detected circles for visualization
             output_frame = cv2.cvtColor(frames[i + 1], cv2.COLOR_GRAY2RGB)
             if circles is not None:
                 for (x, y, r) in circles:
@@ -99,12 +98,12 @@ def analyze_gif(gif_file):
             frames_with_circles = [c["frame"] for c in circle_data]
 
             # Check if radii are increasing over frames
-            is_growing = all(radii[i] < radii[i + 1] for i in range(len(radii) - 1))
+            is_growing = all(radii[i] < radii[i + 1] for i in range(len(radii) - 1)) if len(radii) > 1 else False
             center_consistent = all(
                 abs(centers[i][0] - centers[0][0]) < 20 and
                 abs(centers[i][1] - centers[0][1]) < 20
                 for i in range(1, len(centers))
-            )
+            ) if len(centers) > 1 else False
 
             report += f"Detected {len(circle_data)} circles across frames.\n"
             for c in circle_data:
@@ -123,7 +122,7 @@ def analyze_gif(gif_file):
 # Gradio interface
 iface = gr.Interface(
     fn=analyze_gif,
-    inputs=gr.File(label="Upload Solar GIF"),
+    inputs=gr.File(label="Upload Solar GIF", file_types=[".gif"]),
     outputs=[
         gr.Textbox(label="Analysis Report"),
         gr.Gallery(label="Frames with Detected Circles")