if you want to change the location (x, y) while using overlay, maybe you can use it like this. i.e. x: move from x = 25 to x=45 in 4 sec ; in straight line way y: always y = 25
k = (45 - 25) / 4 = 5 so the params maybe like this: overlay=x=25+5*(t - 0):y=25:enable='between(t,0,4)' foxtail mega <[email protected]> 于2020年3月27日周五 下午6:49写道： > Surely I will let you know if zmq works, but for zmq to work, ffmpeg has to > be built with zmq and then enable zmq. The issue is mobile-ffmpeg has not > enabled zmq by default and I will have to build it myself. I think zmq is > the only way. But I will still try some other ways first. > > On Fri 27 Mar, 2020, 3:59 PM Michael Koch, <[email protected]> > wrote: > > > Am 27.03.2020 um 11:07 schrieb foxtail mega: > > > Clarification regarding information (x,y for overlay filter). > > > > > > I am using ffmpeg for mobile devices so i am using flutter-ffmpeg. Now > > > i am using dart language for supplying x and y co-ordinates to ffmpeg > > > instance. Issue is, after i run the ffmpeg command, there is no way i > > > am able to change the coordinates, so i have to stop running ffmpeg > > > instance, and then re-run ffmpeg with changed coordinates. > > > > > > I guess i will check for suggested solution of realtime filter and > > > sendcmd. I am not sure if that would work though. > > > > > > A similar question was asked some time ago here: > > http://ffmpeg.org/pipermail/ffmpeg-user/2019-August/045065.html > > > > One of the suggested solutions was FFmpeg's zmq filter. But I never > > found a working example for it. If you figure out how it works, please > > write a short documentation and let me know. > > > > Michael > > > > > > _______________________________________________ > > ffmpeg-user mailing list > > [email protected] > > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > > > To unsubscribe, visit link above, or email > > [email protected] with subject "unsubscribe". > _______________________________________________ > ffmpeg-user mailing list > [email protected] > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > [email protected] with subject "unsubscribe". _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
