I have built kdenlive from trunk using build-kdenlive.sh.
However the render dialog shows red crosses for all the options under mpeg-4, xvid4 and flash.
I *think* I have all the correct build requires, and I am launching it with the start_kdenlive.sh script to set up the environment.
The configuration wizard shows mlt version 0.6.0 and mlt dir is correct.
I also have 7.8 installed on the system, and this is also now showing the same behaviour with mlt 5.10. It worked fine with mpeg-4 previously.
Since the script builds it's own major dependencies from git/svn there should be no interaction between the two installed versions AFAICT.
I have tried renaming the kdenlive dir under ~/.kde4 with no change.
Otherwise, the latest trunk is working well and appears to have solved a transcoding to mkv and sound sync issue that I had in 7.8.
Any ideas anyone?