Update main.py

main.py

@@ -88,32 +88,31 @@ async def create_slideshow(image_paths, audio_path, output_path, duration, zoom=
             output_path
         ]
     else:
-        # 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")
-            
-            # 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",
-            "-f", "concat",
-            "-safe", "0",
-            "-i", concat_file,
-            "-i", audio_path,
-            "-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",
+        # Build separate inputs looping each image with a fixed display time and apply zoom effect
+        cmd_inputs = []
+        for img in image_paths:
+            cmd_inputs += ["-loop", "1", "-t", str(duration), "-i", img]
+        # Add the audio input at the end
+        cmd_inputs += ["-i", audio_path]
+
+        # Create filter_complex applying zoompan on each image (assuming 25 fps)
+        num_images = len(image_paths)
+        filter_parts = []
+        for i in range(num_images):
+            filter_parts.append(
+            f"[{i}:v]zoompan=z='min(zoom+{zoom_ratio},1.5)':d={duration * 25}:s=hd720,setsar=1[v{i}]"
+            )
+        # Concatenate all processed clips
+        concat_inputs = "".join(f"[v{i}]" for i in range(num_images))
+        filter_complex = "; ".join(filter_parts) + f"; {concat_inputs}concat=n={num_images}:v=1:a=0,format=yuv420p[v]"
+
+        # Build the ffmpeg command with proper mapping for video and audio (audio is after the images)
+        cmd = ["ffmpeg", "-y"] + cmd_inputs + [
+            "-filter_complex", filter_complex,
+            "-map", "[v]",
+            "-map", f"{num_images}:a",
             "-c:a", "aac",
             "-shortest",
-            "-y",
-            "-t", str(total_duration),
             output_path
         ]