[FFmpeg-user] Unable to re-open output file for the second pass (faststart)

[Eugene Gekhter]

Hi guys,

I'm encoding videos with ffmpeg from a PHP script.
Half the videos I check are corrupted, and the common thread is Unable to
re-open /transcodes/output_file.mp4 output file for the second pass
(faststart)

Since I delete the source videos at the end of the script, I've added
sleep(5) right after the end of my ffmpeg command execution to try and
mitigate the problem, but 5 seconds doesn't seem to be a catch all solution.

Any ideas on how to avoid the above message besides not deleting the source
files immediately?

Thank you,

*Eugene Gekhter*