On Mon, Dec 17, 2018 at 9:16 PM Chris <c319chris-at-aol.com at ffmpeg.org> wrote: > Today I upgraded to ffmpeg v 4.1. The following code used to work but no > longer does. What is the fix? > Please post the full command line you used along with the full uncut terminal output. The answer will most likely be in there. Best, Kieran.