Update app.py

app.py

@@ -15,10 +15,10 @@ def inference(video):
       downsample_ratio=0.25,           # [Optional] If None, make downsampled max size be 512px.
       output_type='video',             # Choose "video" or "png_sequence"
       output_composition='com.mp4',    # File path if video; directory path if png sequence.
-      output_alpha="pha.mp4",          # [Optional] Output the raw alpha prediction.
-      output_foreground="fgr.mp4",     # [Optional] Output the raw foreground prediction.
+      output_alpha= None,          # [Optional] Output the raw alpha prediction.
+      output_foreground= None,     # [Optional] Output the raw foreground prediction.
       output_video_mbps=4,             # Output video mbps. Not needed for png sequence.
-      seq_chunk=12,                    # Process n frames at once for better parallelism.
+      seq_chunk=6,                    # Process n frames at once for better parallelism.
       num_workers=1,                   # Only for image sequence input. Reader threads.
       progress=True                    # Print conversion progress.
   )