Update app.py

app.py

@@ -90,7 +90,7 @@ def create_video(frames, fps, type):
     for j, img in enumerate(frames):
         frames[j] = cv2.cvtColor(cv2.imread(img).astype(np.uint8), cv2.COLOR_RGB2RGBA)
 
-    mediapy.write_video(type + "_result.mp4", frames, fps=fps)
+    mediapy.write_video(type + "_result.mp4", frames, fps=fps, codec='hevc', encoded_format='rgba')
     
     #https://zulko.github.io/moviepy/getting_started/videoclips.html#mask-clips
     #clip = ImageSequenceClip(frames, fps=fps)