On Sat, Mar 17, 2018, at 11:41 AM, Geoff Fox wrote: > I'm a meteorologist making my own weather maps. I use ffmpeg to create my > animations from still images, like this: > http://45.79.86.175/output/nam/sfc/conus-nam-slp.mp4 > > Typically: ffmpeg -r 10 -f image2 -s 1920x1080 -start_number 02 -i > /var/www/html/output/hrrr/sfc/ord-hrrr-slp%02d.png -y -vframes 96 -vcodec > libx264 -crf 25 -pix_fmt yuv420p > /var/www/html/output/hrrr/sfc/ord-hrrr-slp.mp4 > > It would save me a lot of time if I could build a half second dwell for the > last frame. Is this possible with ffmpeg?
By "dwell" I guess you mean a pause. One method is to use the concat filter: ffmpeg -framerate 10 -start_number 02 -i ord-hrrr-slp%02d.png -framerate 10 -t 0.5 -loop 1 -i last_frame.png -filter_complex "[0][1]concat=n=2:v=1:a=0,format=yuv420p[v]" -map "[v]" output.mp4 Last image should display for a half second + 1 frame (I did not verify). No need for "-f image2 -s 1920x1080". Use -framerate instead of -r for the image file demuxer. _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
