Package: kdenlive Version: 20.04.2-1 Severity: normal Dear Maintainer,
1. launch kdenlive 2. add movie clip to the new project 3. move clip to timeline 4. Press Render 5. on the Render Project tab try to select "MP4 - the dominating format (H264/AAC)" and get the message "Unsupported video codec: libx264" Rollback to ffmpeg 7:4.2.2-1 solves the problem for me. -- System Information: Debian Release: bullseye/sid APT prefers unstable APT policy: (990, 'unstable'), (500, 'stable-updates'), (500, 'proposed-updates'), (500, 'testing'), (500, 'stable'), (1, 'experimental') Architecture: amd64 (x86_64) Kernel: Linux 5.6.0-2-amd64 (SMP w/2 CPU cores) Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE Locale: LANG=ru_RU.UTF-8, LC_CTYPE=ru_RU.UTF-8 (charmap=UTF-8), LANGUAGE= (charmap=UTF-8) Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages kdenlive depends on: ii ffmpeg 7:4.3-2 ii gstreamer1.0-plugins-bad 1.16.2-2.1+b1 ii kded5 5.70.0-1 ii kdenlive-data 20.04.2-1 ii kinit 5.70.0-1 ii kio 5.70.1-1 ii libc6 2.30-8 ii libkf5archive5 5.70.0-1 ii libkf5bookmarks5 5.70.0-1 ii libkf5completion5 5.70.0-1 ii libkf5configcore5 5.70.0-1 ii libkf5configgui5 5.70.0-1 ii libkf5configwidgets5 5.70.0-1 ii libkf5coreaddons5 5.70.0-1 ii libkf5crash5 5.70.0-1 ii libkf5dbusaddons5 5.70.0-1 ii libkf5declarative5 5.70.0-1 ii libkf5filemetadata3 5.70.0-1 ii libkf5guiaddons5 5.70.0-2 ii libkf5i18n5 5.70.0-1 ii libkf5iconthemes5 5.70.0-1 ii libkf5itemviews5 5.70.0-1 ii libkf5jobwidgets5 5.70.0-1 ii libkf5kiocore5 5.70.1-1 ii libkf5kiofilewidgets5 5.70.1-1 ii libkf5kiowidgets5 5.70.1-1 ii libkf5newstuff5 5.70.0-1 ii libkf5notifications5 5.70.0-1 ii libkf5notifyconfig5 5.70.0-1 ii libkf5purpose-bin 5.70.0-1 ii libkf5purpose5 5.70.0-1 ii libkf5service-bin 5.70.0-1 ii libkf5service5 5.70.0-1 ii libkf5solid5 5.70.0-1 ii libkf5widgetsaddons5 5.70.0-1 ii libkf5xmlgui5 5.70.0-1 ii libmlt++3 6.20.0-2+b1 ii libmlt6 6.20.0-2+b1 ii libqt5concurrent5 5.12.5+dfsg-10+b1 ii libqt5core5a 5.12.5+dfsg-10+b1 ii libqt5dbus5 5.12.5+dfsg-10+b1 ii libqt5gui5 5.12.5+dfsg-10+b1 ii libqt5multimedia5 5.12.5-1+b1 ii libqt5network5 5.12.5+dfsg-10+b1 ii libqt5qml5 5.12.5-5 ii libqt5quick5 5.12.5-5 ii libqt5quickcontrols2-5 5.12.5+dfsg-2+b1 ii libqt5quickwidgets5 5.12.5-5 ii libqt5svg5 5.12.5-2 ii libqt5webkit5 5.212.0~alpha4-1+b1 ii libqt5widgets5 5.12.5+dfsg-10+b1 ii libqt5xml5 5.12.5+dfsg-10+b1 ii librttr-core0.9.6 0.9.6+dfsg1-3 ii libstdc++6 10.1.0-4 ii melt 6.20.0-2+b1 ii qml-module-qtgraphicaleffects 5.12.5-2+b1 ii qml-module-qtqml-models2 5.12.5-5 ii qml-module-qtquick-controls 5.12.5-1+b1 ii qml-module-qtquick-controls2 5.12.5+dfsg-2+b1 ii qml-module-qtquick-dialogs 5.12.5-1+b1 ii qml-module-qtquick-layouts 5.12.5-5 ii qml-module-qtquick-window2 5.12.5-5 ii qml-module-qtquick2 5.12.5-5 Versions of packages kdenlive recommends: ii breeze-icon-theme 4:5.70.0-1 ii dvdauthor 0.7.2-1+b3 ii dvgrab 3.5+git20160707.1.e46042e-1+b1 ii frei0r-plugins 1.7.0-1 ii genisoimage 9:1.1.11-3.1 ii oxygen-icon-theme 5:5.70.0-1 ii recordmydesktop 0.3.8.1+svn602-1.1 ii swh-plugins 0.4.17-2 Versions of packages kdenlive suggests: ii khelpcenter 4:20.04.2-1 -- no debconf information