Sorry this was just a typo in my bug report, I didn't miss it in my command line options.
** Description changed: If I try to convert a video using h264 codec, I get the error - Unknown encoder 'lib264' + Unknown encoder 'libx264' For example: ffmpeg -i input -vcodec libx264 output.mp4 However doing the same with avconv works: avconv -i input -vcodec libx264 output.mp4 aptitude search libavcodec gives: - p libavcodec-dev - Development files for libavcodec - p libavcodec-dev:i386 - Development files for libavcodec + p libavcodec-dev - Development files for libavcodec + p libavcodec-dev:i386 - Development files for libavcodec i libavcodec-extra - Libav codec library (additional codecs met - i libavcodec-extra-56 - Libav codec library (additional codecs) - p libavcodec-extra-56:i386 - Libav codec library (additional codecs) + i libavcodec-extra-56 - Libav codec library (additional codecs) + p libavcodec-extra-56:i386 - Libav codec library (additional codecs) p libavcodec-ffmpeg-dev - FFmpeg library with de/encoders for audio/ p libavcodec-ffmpeg-dev:i386 - FFmpeg library with de/encoders for audio/ i A libavcodec-ffmpeg56 - FFmpeg library with de/encoders for audio/ p libavcodec-ffmpeg56:i386 - FFmpeg library with de/encoders for audio/ - c libavcodec53 - Libav codec library - c libavcodec54 - Libav codec library - c libavcodec56 - Libav codec library + c libavcodec53 - Libav codec library + c libavcodec54 - Libav codec library + c libavcodec56 - Libav codec library p libavcodec56:i386 - Libav codec library ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: ffmpeg 7:2.5.7-0ubuntu0.15.04.1 ProcVersionSignature: Ubuntu 3.19.0-23.24-generic 3.19.8-ckt2 Uname: Linux 3.19.0-23-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.1 Architecture: amd64 CurrentDesktop: GNOME Date: Sun Jul 26 13:56:40 2015 InstallationDate: Installed on 2013-11-22 (611 days ago) InstallationMedia: Lubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1) SourcePackage: ffmpeg UpgradeStatus: Upgraded to vivid on 2015-06-29 (27 days ago) ** Changed in: ffmpeg (Ubuntu) Status: Invalid => New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1478337 Title: Unknown encoder 'libx264' To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ffmpeg/+bug/1478337/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs