Update app.py

app.py

@@ -21,8 +21,8 @@ def inference(video):
   convert_video(
       model,                           # The loaded model, can be on any device (cpu or cuda).
       input_source='output.mp4',        # A video file or an image sequence directory.
-      input_resize=(500, 500),       # [Optional] Resize the input (also the output).
-      downsample_ratio=0.25,           # [Optional] If None, make downsampled max size be 512px.
+      input_resize=(512, 512),       # [Optional] Resize the input (also the output).
+      downsample_ratio=None,           # [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.