Update app.py

app.py

@@ -616,7 +616,7 @@ def segment_video(video, prompt_mode, categoryname, custom_category, expressiong
         size = (ori_width,ori_height)    
         print('writing video...')
         output_file = "test.mp4"
-        writer = skvideo.io.FFmpegWriter(output_file,outputdict={'-r': read_fps,})
+        writer = skvideo.io.FFmpegWriter(output_file,outputdict={'-r': str(read_fps),})
         for i in range(len(ourput_frames)):
             writer.writeFrame(ourput_frames[i])
         writer.close()
@@ -841,7 +841,7 @@ def segment_video(video, prompt_mode, categoryname, custom_category, expressiong
 
         size = (ori_width,ori_height)    
         output_file = "test.mp4"
-        writer = skvideo.io.FFmpegWriter(output_file,outputdict={'-r': read_fps,})
+        writer = skvideo.io.FFmpegWriter(output_file,outputdict={'-r': str(read_fps),})
         for i in range(len(output_vos_results)):
             writer.writeFrame(output_vos_results[i])
         writer.close()