Vid_522.mp4 May 2026

: Within a loop that processes your video input, use the write() method to save each frame. out.write(frame) .

: For MP4 files, the mp4v codec is widely used. You can define it using: fourcc = cv2.VideoWriter_fourcc(*'mp4v') . vid_522.mp4

: While mp4v is standard, some systems (like macOS) may require FMP4 or avc1 to display correctly in certain players. : Within a loop that processes your video

cv2.VideoWriter fails to write *.mp4 video files #24787 - GitHub vid_522.mp4