Video playing faster than audio starting with UMS 2.5.0

[smirk]

Hi,

Starting with 2.5.0 (and continuing with 2.6.0), a bunch of my video files stopped playing correctly. What happens is the audio plays normally, but the video races by at high speed. After a few seconds, the video freezes (audio continues playing normally), and then it starts racing again -- and this repeats as long as it's playing. It is possible that only .mkv's exhibit this behavior, but I'm not sure. With UMS 2.4.2, however, everything plays normally.

Attached are the log files from one of the videos. Can anyone shed some light on what's going on?

Thanks!

[SubJunk]

Thanks, this should be fixed in the next version

[smirk]

That's great, thank you!

If you feel like taking the time to explain what caused it, it would be very interesting to read.

[SubJunk]

I think it was caused by the feature we added in 2.5.0 to remux H.264 video with FFmpeg instead of transcoding it, so it seems like a bug in FFmpeg.
Can you please try to replace win32/ffmpeg.exe with this one and see if that makes a difference?