minus sub duration

main.py

@@ -686,7 +686,7 @@ def anchor_video_v2(name,text_content, image_urls):
         for sub_idx in range(len(sub_list[idx])):
             sub_img_list[idx][sub_idx] = openshot.QtImageReader(sub_list[idx][sub_idx]['path'])
             sub_img_list[idx][sub_idx].Open()
-            sub_duration = 0.25*sub_list[idx][sub_idx]['count']
+            sub_duration = 0.25*sub_list[idx][sub_idx]['count']-1
             sub_clip_list[idx][sub_idx] = video_photo_clip(vid=sub_img_list[idx][sub_idx], layer=6,location_x=0.069, location_y=0.89,position=main_timer+sub_timer,end=sub_duration)
             t.AddClip(sub_clip_list[idx][sub_idx])
             sub_img_list[idx][sub_idx].Close()