Update main.py

main.py

@@ -88,42 +88,26 @@ async def create_slideshow(image_paths, audio_path, output_path, duration, zoom=
             output_path
         ]
     else:
-        # With improved zoom effect inspired by the zoom_in_effect function
-        total_duration = len(image_paths) * duration
-        filter_complex = ""
-        inputs = []
-        
-        # Add each image with enhanced zoompan effect
-        for i, img in enumerate(image_paths):
-            inputs.extend(["-loop", "1", "-t", str(duration), "-i", img])
-            
-            # Calculate frames based on duration (assuming 25fps)
-            frames = duration * 25
+        # Implementation with zoom effect
+        async with aiofiles.open(concat_file, "w") as f:
+            for img in image_paths:
+                await f.write(f"file '{img}'\n")
+                await f.write(f"duration {duration}\n")
+                await f.write(f"zoompan=z='min(zoom+0.0015,1.5)':d=1:x='iw/2-(iw/zoom/2)':y='ih/2-(ih/zoom/2)':s=1280x720,framerate=25:interp_start=0:interp_end=255:scene=100\n")
             
-            # Create zoompan filter that mimics the provided zoom_in_effect function
-            # z: zoom factor increases over time based on zoom_ratio
-            # x/y: center the zoom effect by adjusting the position based on zoom
-            filter_complex += (
-                f"[{i}:v]scale=1920:1080:force_original_aspect_ratio=decrease,setsar=1,"
-                f"pad=1920:1080:(ow-iw)/2:(oh-ih)/2,"
-                f"zoompan=z='1+(on/{frames})*{zoom_ratio}*{frames}':"
-                f"x='iw/2-(iw/zoom/2)':"
-                f"y='ih/2-(ih/zoom/2)':"
-                f"d={frames}:s=1920x1080[v{i}];"
-            )
-        
-        # Concatenate all video segments
-        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]"
+            # Add the last image again without duration (required by ffmpeg)
+            if image_paths:
+                await f.write(f"file '{image_paths[-1]}'\n")
         
+        # Run ffmpeg command to create slideshow with audio
+        total_duration = len(image_paths) * duration
         cmd = [
             "ffmpeg",
-            *inputs,
+            "-f", "concat",
+            "-safe", "0",
+            "-i", concat_file,
             "-i", audio_path,
-            "-filter_complex", filter_complex,
-            "-map", "[outv]",
-            "-map", f"{len(image_paths)}:a",
+            "-vf", f"zoompan=z='min(zoom+{zoom_ratio},1.5)':d=1:x='iw/2-(iw/zoom/2)':y='ih/2-(ih/zoom/2)':s=1280x720,framerate=25:interp_start=0:interp_end=255:scene=100",
             "-c:v", "libx264",
             "-pix_fmt", "yuv420p",
             "-c:a", "aac",