Update app.py

app.py

@@ -134,12 +134,12 @@ def extend_video_simple(video_path, audio_path, output_path):
         # Create a reversed version of the full video
         reversed_clip = "reversed.mp4"
         subprocess.run(
-            f"ffmpeg -i {video_path} -vf reverse -an {reversed_clip}", shell=True
+            f"ffmpeg -y -i {video_path} -vf reverse -an {reversed_clip}", shell=True
         )
 
         # Merge original + reversed
         subprocess.run(
-            f"ffmpeg -i {video_path} -i {reversed_clip} -filter_complex \"[0:v:0][1:v:0]concat=n=2:v=1[outv]\" -map \"[outv]\" -an {output_path}",
+            f"ffmpeg -y -i {video_path} -i {reversed_clip} -filter_complex \"[0:v:0][1:v:0]concat=n=2:v=1[outv]\" -map \"[outv]\" -an {output_path}",
             shell=True
         )
 
@@ -176,15 +176,14 @@ def generate_video():
     inference_ckpt_path = request.form.get('inference_ckpt_path', 'checkpoints/latentsync_unet.pt')
     unet_config_path = request.form.get('unet_config_path', 'configs/unet/second_stage.yaml')
 
-    extended_output_video = tempfile.NamedTemporaryFile(delete=False, suffix=".mp4").name
 
-    extend_video_simple(temp_video_path, temp_audio_path, extended_output_video)
+    extend_video_simple(temp_video_path, temp_audio_path, output_video)
    
     try:
         run_inference(
             video_path=temp_video_path,
             audio_path=temp_audio_path,
-            video_out_path=extended_output_video,
+            video_out_path=output_video,
             inference_ckpt_path=inference_ckpt_path,
             unet_config_path=unet_config_path,
             inference_steps=int(request.form.get('inference_steps', 20)),