Update app.py

app.py

@@ -16,6 +16,7 @@ import json
 from collections import Counter
 import mediapy
 import ffmpy
+from apng import APNG
 
 #from depth_anything.dpt import DepthAnything
 #from depth_anything.util.transform import Resize, NormalizeImage, PrepareForNet
@@ -63,10 +64,11 @@ def create_alpha_video(frames, fps, type):
     print("building composite video result")
     imgs = []
     for j, img in enumerate(frames):
-        imgs.append(cv2.cvtColor(cv2.imread(img).astype(np.uint8), cv2.COLOR_RGBA2RGB))
+        imgs.append(cv2.imread(img).astype(np.uint8))
 
-    mediapy.write_video(type + "_result.mp4", imgs, fps=fps)
-    return type + "_result.mp4"
+    APNG.from_files(frames, delay=1000).save(type + "_result.png")
+    mediapy.write_video(type + "_result.webm", imgs, fps=fps)
+    return type + "_result.webm"
 
 def create_video(frames, fps, type):
     print("building video result")