1- I compiled from root, but the result doesn't change: your presets don't work in my CinGG; it only offers the yuv420p option which, not being supported, produces error. 2- I compiled from root with the ./build.sh provided by GG but the result is the same as point 1- 3- I compiled with ffmpeg-git --> compile error The trouble is that I compile with the copy and paste, without knowing what I do. The steps I use are: $ git clone --depth 1 "git://git.cinelerra-gg.org/goodguy/cinelerra.git" cinelerra5 $ cd /home/paz/cinelerra5/cinelerra-5.1 $ ./autogen.sh $ ./configure --without-oss --with-single-user --with-booby --with-opencv=sta,tar=http://cinelerra-gg.org/download/opencv/opencv-20200306.tgz $ make 2>&1 | tee /tmp/cin5.log && make install All this without being Root. Do you think I'm wrong? Should I try your ./configure? (but most of the strings I don't understand them!)