Hi, > I'm trying to automate time-lapse video from still images. I have all sky > camera that captures around 200 images / night. I've managed to do videos > like this > https://drive.google.com/file/d/1yyihZNypBy0r5y_JJiTHgtvc8N1RAZ3e/view?usp=sharing
Timelapse can be counterintuitive sometimes. Sometimes you need to slow the framerate down, sometimes you need to raise it. Sometimes you need less frequent captures (or a step in the middle where you approve/reject the pictures that are going to be your frames), and sometimes, you need to capture at a much higher rate. > However what i'm looking for is for smoother video. Is it possible with > ffmpeg? I think this case it is a matter of not enough captures to make a good timelapse video. > I've tried to clone every image 30 times etc but still fail to get good > results. I've tried to search ffmpeg man pages and the web but no success. Also, maybe interpolating/duplicating frames is actually counterproductive by giving you a less clean starting point? I think the simplest timelapse render looks pretty good, from there maybe you can minterpolate but I'm not sure if the filters before minterpolate help. https://media.kumowoon1025.com/videos/simple-timelapse-example.mov > I use python script to automate the whole process. so below is some option > ive tried > > os.system('ffmpeg -i ' + workdir2 + '%d.jpg -vf ' > '"tblend=average,framestep=1,setpts=0.50*PTS,minterpolate"' + ' -r 30 -b:v > 64K -crf 10 -an ' + destinationdir + videofile) > os.system('ffmpeg -r 30 -i ' + workdir2 + '%d.jpg -vcodec mpeg4 -qscale 1 > -y -filter:v '" setpts=2.0*PTS"' ' + destinationdir + videofile) This is just a general tip, I can excavate the command from that, but it would be immensely helpful if you put it into a line you can feed into a shell and also attach the output. Regards, Ted Park _______________________________________________ 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".
