If you are simply trying to play or fix an MP4 file with this name, here are the most helpful troubleshooting steps:
: The VP9 encoder expects the --frame-parallel setting to be a strictly boolean value (0 or 1). Setting it to other values (like 16) has been known to cause unexpected encoder behavior or invalid bitstreams . b1339.mp4
Are you trying to fix a specific error message while playing this file, or If you are simply trying to play or