Update app.py

app.py

@@ -49,7 +49,7 @@ def iter_clips(video_path, num_segments=4, stride_size=16):
     curr_frame = 0
     fps = vr.get_avg_fps()
     while curr_frame == 0 or curr_frame < max_start_frame:
-        stop_frame = min(frame_sample_size, len(vr))
+        stop_frame = min(curr_frame + frame_sample_size, len(vr))
         curr_sec, stop_sec = curr_frame / fps, stop_frame / fps
         frame_ids = get_frame_ids(curr_frame, stop_frame, num_segments=num_segments, jitter=False)
         frames = video_loader_by_frames('./', video_path, frame_ids)