yes I givup on cinelerra-cv stable version is from stone age . Dadidva in Unitedrpms (BTW Unitedrpms is made only by him) had worked on cinelerra-cv goodguy repo which is a lot updated and is from this age and also opencv-freeworld , I checked it now and seems David opt out by build full opencv , i.e . bring this to Fedora and to RPMFusion will give many work (to follow Fedora packaging guidelines ) . I helped him to enabled freeworld bits. Unfortunately this is another weekend which I'm very busy and can't dedicate time to this subject :( . Thanks, [1] https://github.com/UnitedRPMs/cinelerra [2] https://github.com/UnitedRPMs/opencv-freeworld On Sat, 2018-12-01 at 13:59 +0100, Nicolas Chauvet wrote: -- Sérgio M. B.