[FFmpeg-user] Overlay fails in the middle of the video

Carl Eugen Hoyos ceffmpeg at gmail.com
Wed Nov 15 02:37:42 EET 2017

2017-11-12 19:30 GMT+01:00 Michael Koch <astroelectronic at t-online.de>:

> I'm trying to make a timelapse video from 145 images, which must first be
> cropped to quadratic size and then a circular mask must be overlaid. The
> overlay comes from a PNG image (black border with transparent circle). The
> video looks good in the first 4 or 5 seconds, but then the overlay
> disappears and doesn't come back until the end of the video.

Thank you for the report, I created ticket #6837.

Carl Eugen

More information about the ffmpeg-user mailing list