On Mon, 25 May 2026 00:47:21 +0000 destal takul wrote: > Nearly every file muxed using MKVToolnix, when remuxed using the Cygwin > version of ffmpeg with '-c copy', will result in "Invalid DTS: XX PTS: XX, > replacing by guess" and "Non-monotonic DTS; previous: XX, current: XX; > changing to XX. This may result in incorrect timestamps in the output file." > warnings, while the Linux and native Windows builds (by gyan.dev) of the > exact same ffmpeg version do not generate such warnings when remuxing the > exact same input file. This seems to be stemming from some math library > difference that results in incorrect parsing of timestamps in the Cygwin > version.
Thanks for the report. I was able to reproduce the issue. Let me take a closer look. -- Takashi Yano <[email protected]> -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
