Hi, Following up on an earlier post (I've been searching for something which can lift the framerate of my video, and interpolate the motion between frames).
After several days on and off searching and trying stuff, I've found something that seems to work. http://jcornet.free.fr/linux/yuvmotionfps.html It's called yuvmotionfps, and can perform arbitrary framerate conversion. The added frames are not just pixel interpolations, as with the Cin 'interpolate frames' plugin. Instead, this program actually detects motion, and comes up with some really good interpolation. Could even be used for some slowmo. Downsides: - input files have to be progressive yuv - which can be hundreds of megs per minute of video - so make sure you've got lots of free space on your hdd - if you set the search radius too low, more rapid motion can be blurry - if the input video has too much radical motion, yuvmotionfps can go off the rails and generate useless spastic video full of jerks and shudders Usage Example - what I've done with my own video - load up some raw video into Cin - in my case, a file orig.avi which is mjpeg, 640x480, 13.1fps - make sure Cin's framerate matches this raw video - trim off the rubbish from beginning and end - render out to a file - I've used a quicktime vid, mjpeg, highest quality - convert this rendered video to yuv: ffmpeg -i orig.mov -f yuv4mpegpipe -b 5000 -vcodec pgmyuv orig.yuv - run yuvmotionfps to upgrade the frame rate, with interpolation: yuvmotionfps -r 25:1 < orig.yuv > orig-25.yuv - reduce this massive file in size, by converting to a .mov with high-quality mpeg4 compression: ffmpeg -i orig-25.yuv -f mov -vcodec mpeg4 -b 5000 orig-25.mov - delete the bloated intermediate files: rm orig-25.yuv orig.yuv - set cin's framerate to the framerate of the converted video, 25fps in this case - load up orig-25.mov into Cin, and edit as normal Hope this helps others as much as it's helping me. Cheers David _______________________________________________ Cinelerra mailing list Cinelerra@skolelinux.no https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra
