Update main.py

main.py

@@ -57,7 +57,7 @@ async def download_file(url, local_path):
 
 async def create_slideshow(image_paths, audio_path, output_path, duration, zoom=False, zoom_ratio=0.04):
     """Generate slideshow from images and audio using ffmpeg asynchronously"""
-    # Create temporary file list for ffmpeg concat
+    # Create temporary file list for ffmpeg concat (used in non-zoom mode)
     concat_file = "temp_concat.txt"
     
     if not zoom:
@@ -89,37 +89,29 @@ async def create_slideshow(image_paths, audio_path, output_path, duration, zoom=
         ]
     else:
         # Complex implementation with zoom effect
-        # Create a filter for each image that zooms in
+        # For each image, we remove the per-input duration and instead do a trimmed zoompan.
         filters = []
-        inputs = []
-        
         for i, img in enumerate(image_paths):
-            # Add input for each image
-            inputs.extend(["-loop", "1", "-t", str(duration), "-i", img])
-            
-            # Create zoom effect filter for each image
-            filter_str = f"[{i}:v]scale=1920:1080:force_original_aspect_ratio=decrease,pad=1920:1080:(ow-iw)/2:(oh-ih)/2,setsar=1,zoompan=z='min(zoom+0.0015,1.5)':d={duration*25}:x='iw/2-(iw/zoom/2)':y='ih/2-(ih/zoom/2)',setpts=PTS-STARTPTS[v{i}];"
+            filter_str = (
+                f"[{i}:v]scale=1920:1080:force_original_aspect_ratio=decrease,"
+                f"pad=1920:1080:(ow-iw)/2:(oh-ih)/2,setsar=1,"
+                f"zoompan=z='min(zoom+0.0015,1.5)':d={duration*25}:"
+                f"x='iw/2-(iw/zoom/2)':y='ih/2-(ih/zoom/2)',"
+                f"trim=duration={duration},setpts=PTS-STARTPTS[v{i}];"
+            )
             filters.append(filter_str)
-
-        # Create the filter complex string
+        
+        # Concatenate all zoompan outputs
         filter_complex = "".join(filters)
-
-        # Add concat to combine all zoompan videos
-        filter_complex += ""
         for i in range(len(image_paths)):
             filter_complex += f"[v{i}]"
         filter_complex += f"concat=n={len(image_paths)}:v=1:a=0[outv]"
-
-        # Run ffmpeg command to create slideshow with zoom and audio
-        cmd = [
-            "ffmpeg",
-            "-y"
-        ]
-
-        # Add inputs
+        
+        cmd = ["ffmpeg", "-y"]
+        # Remove duration here; let zoompan+trim control each clip's length.
         for img in image_paths:
-            cmd.extend(["-loop", "1", "-t", str(duration), "-i", img])
-
+            cmd.extend(["-loop", "1", "-i", img])
+        
         cmd.extend([
             "-i", audio_path,
             "-filter_complex", filter_complex,