Hi! In this page of the Cinelerra-GG manual: Complete Options File Example https://cinelerra-gg.org/download/CinelerraGG_Manual/Complete_Options_File_E... it reads: acc instead of aac in two places in that page and I think in some other pages in the manual. However, there is, upon building Cinelerra: ffmpeg/audio/acc256k.pro which is wrong filename. Should be acc256k.pro of course. I was only able to get mjpeg processing to work. No h264, no h265. When rendering with FFmpeg I get only something like empty mp4 in menus. So I doubt there may be other formats/codecs/other errors there too. I see these are all relatively new changes: [Cin] Formats and Codecs in CinGG https://lists.cinelerra-gg.org/pipermail/cin/2021-November/004085.html And in the Git repo the log says: commit b0fd1700736a56a8c206bff1e699a9a130faafbf Author: Good Guy <[email protected]> Date: Mon Nov 22 20:09:14 2021 -0700 ffmpeg patches for TERMUX from Andrew + mpeg formats but I haven't studied the diffs (yet?). However, it's there that I would search to try and solve this. So much for now. Regards to the whole team! (I couldn't use any other video editor but Cinelerra. Libre is always best. But I work so slow myself...) -- Miroslav Rovis Zagreb, Croatia https://www.CroatiaFidelis.hr my PGP-key: https://www.croatiafidelis.hr/FCF13245ED247DCE443855B7EA9884884FBAF0AE.asc