Video processing hangs indefinitely with corrupted video segments

[Archkik]

When processing a video containing corrupted segments, the subclipped function (and other methods depending on get_frame) can hang indefinitely without raising an error or timeout. This behavior seems to be caused by the underlying frame_function implementation, which does not handle corrupted frames or set a timeout for frame decoding.

video_path = "path_to_corrupted_video.mp4"  
video = VideoFileClip(video_path)
try:
    sub_clip = video.subclipped(43, 50)
except Exception as e:
    print(f"Error: {e}")

Expected Behavior

Raise an error indicating that the frame cannot be decoded, or
Raise a Timeout error

Actual Behavior

The function hangs indefinitely without raising an error, likely due to the underlying frame decoding stalling when encountering corrupted frames.

Specifications

• Python Version: 3.11
• MoviePy Version: 2.1.1
• Platform Version: Windows10

[Archkik]

from moviepy import VideoFileClip
video_path = "output_video1.mp4"  
video = VideoFileClip(video_path)
try:
    sub_clip = video.subclipped(6, 8)
    print("OK")
except Exception as e:
    print(f"Error: {e}")

output_video1.zip

[OsaAjani]

I cannot reproduce under Linux with version 2.1.2, can you check on your end and verify if the issue still exists.