: If the video ends prematurely, it might be a "silent failure" during the initial conversion (a common issue reported by users of tools like HandBrake). Re-encoding from the original source is usually the only fix.
If you are dealing with a video file that is crashing or failing during encoding, it may be related to in the libvpx (VP9) project. b1339.mp4
Are you trying to fix a specific error message while playing this file, or : If the video ends prematurely, it might
If you are simply trying to play or fix an MP4 file with this name, here are the most helpful troubleshooting steps: : If the video ends prematurely