On Sun, Mar 23, 2008 at 3:26 PM, Mads Bondo Dydensborg <mads at dydensborg.dk> wrote: > Hi there > > I have some footage taken with a helmet cam in 640x480 @30 fps (4/3), that I > would like to use in a PAL DV 16/9 project. > > What is the best way to get the highest quality of the headcam footage in > kdenlive? Should I transcode it using some external program, or just add it > as a clip to kdenlive?
The simplest is to just add it as a clip. MLT does framerate decimation and image resampling automatically. However, to get more quality, you need high quality temporal interpolation. Zachard Drew wrote the motion estimation module[1] in MLT that can use in an inigo job to transcode it prior to use in kdenlive. However, I do not have any experience using motion estimation for this. After making sure to build the module (it is opt-in), try this as a hint to get started: $ inigo -profile dv_pal_wide slowmotion:some-ntsc.avi speed=0.8342 -consumer avformat:my.dv ... It's just that 0.8342 is an approximation, and I do not know how good the results will be. Sharing your experience would be valuable. There is a trick to get kdenlive to do this for you without transcoding. You can convert the above into a westley-based "virtual" clip and load the .westley into kdenlive: $ inigo -profile dv_pal_wide slowmotion:some-ntsc.avi speed=0.8342 -consumer westley:some-ntsc.westley [1] http://www.tc.umn.edu/~drew0054/video.html -- +-DRD-+
