make sure video input is not greater than 24 fps

app.py

@@ -170,6 +170,26 @@ def get_matte(video_in, subject_to_remove):
 def infer_auto(project_name, video_in, subject_to_remove):
     timestamp = datetime.datetime.now().strftime("%Y%m%d%H%M%S")
     print(video_in)
+
+    # Load the video clip
+    video_clip = VideoFileClip(video_in)
+
+    # Check the original FPS of the video
+    original_fps = video_clip.fps
+
+    # Set the target FPS to 24
+    target_fps = 24
+    
+    # Check if the original FPS is greater than 24
+    if original_fps > target_fps:
+        # Convert the video to the target FPS
+        video_clip = video_clip.set_duration(video_clip.duration * (target_fps / original_fps))
+        video_clip = video_clip.set_fps(target_fps)
+
+        # Write the new video to an output file
+        video_clip.write_videofile(f"retimed_clip_in_{timestamp}.mp4", codec='libx264')
+        video_in = f"retimed_clip_in_{timestamp}.mp4"
+    
     matte_video = get_matte(video_in, subject_to_remove)
 
     # Cut the video to the first 3 seconds