fix for both problems is in https://github.com/gmarco/mlt/tree/videostab and will be (i hope) merged next.

after that i'll commit some sse2 speedup fixes (short review needed)

hi marco, I rebuilt MLT & kdenlive from the excellent build scripts on the Wiki about 8 hrs ago, not sure if it included your fixes so will try again later but there did seem to be some improvement in far less smearing but stability was terrible, lots of crashes :-) I tested interlaced DV, not ideal I guess regarding your comment on deinterlacing although I left it interlaced.

I chose DV just because of speed. 15sec clip stabilizes in about 10mins on my old Sempron, a 15sec HDV takes just under an hour, a DSLR HD 15sec nearly two hours, not complaining and only to be expected on my test hardware but adding the mlt files to the timeline crashes kdenlive in a number of ways:

1. Scrubbing through the clip in the Clip monitor

2. Adding the clip to the timeline and moving or scrubbing.

3. Trying to render a clip off the timeline.

I had found I could render a clip with the previous version of the day before yesterday.

Will test again tonight on alternative hardware for comparison.

Cheers

the fix provided does not solve the problems as i see.
please wait unil i found a sopultion.
when using sse2 optimized version is will work a lot faster.
maybe later i could add also multithreading (but this will not happen next time)

ok, will do, many thanks.

I'm trying Stabilize in Ubuntu svn version.
The transcode version is simply great!

THANKS A LOT!!!!

Seems that FFMPEG has sprouted its own stabilization tool!
While browsing the latest FFMPEG sources, I came across this:

libavfilter/vf_deshake.c

haven't yet tried it.

Not sure if you've seen it, but also the transcode vid.stab now has a one-pass 'deshake' filter. From the web page:

The single pass version has the combined options of the two-pass filters. It produces less good results since it only uses past frames, whereas the two-pass version uses future frames as well.

Only a quick test, and on a wide-angle movie (GoPro) which is difficult to correct anyhow: Indeed at the same settings it is slightly inferior to the two-pass solution, but it does make things a bit easier....
(tested vid.stab 0.93 on transcode 1.1.5)

So Kdenlive ver 0.9 is suposed to come with frei0r video stabilizer. Does anyone know where to find it in the app and how to use it?

Just right click on the clip in the Project tree and it should be down there under Transcode.

And there it is. Stabilize > Videostab (vstab) and Stabilize > Videostab (transcode)

I created a job which then appears as "one pending job" and I can see a little progress bar on the bottom of the clip in the project view. Neat
I wonder what happens once the job finishes.

Well, what would you expect the program to do, if you give a file destination and there is a tag in the checkbox "Add clip to project". ;-)

After stabilization it will appear in the project tree. Great feature.

Yep. The stabilized clip appeared in the project tree. Yay. It is a cool feature.

BTW - what does Shutterangle do?

"what does Shutterangle do?" - Shutterangle is the Angle that Images could be maximum rotated for stabilization. http://www.mltframework.org/bin/view/MLT/FilterVideostab.

And yes I often talk to myself !

Hi,

I like to start that thread again, after half a year of silence. I am an video editor for 20 years now and as I am fed up with windows I changed to Ubuntu 12.04 half a year ago. So far everything is moved to Linux except for video editing, so I gave Kdenlive a try. Playing round with vstab, I do not get any real results. Are there some magic parameters for running it? I did stab with vdub before which gave good results, but I cannot transcode single clips from the project tree to avi format, do I miss something here?

thx
Eric