Package: totem Followup-For: Bug #866571 Dear Maintainer, you are right:
debian:~$ rm -R ~/.cache/gstreamer-1.0/ make it! totem is now able to read mp4 h264 videos -- System Information: Debian Release: 9.0 APT prefers oldstable-updates APT policy: (500, 'oldstable-updates'), (500, 'testing'), (500, 'stable'), (500, 'oldstable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.9.0-3-amd64 (SMP w/2 CPU cores) Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8), LANGUAGE=fr_FR.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages totem depends on: ii grilo-plugins-0.3 0.3.4-2 ii gsettings-desktop-schemas 3.22.0-1 ii gstreamer1.0-clutter-3.0 3.0.24-1 ii gstreamer1.0-plugins-bad 1.12.1-1 ii gstreamer1.0-plugins-base 1.12.1-1 ii gstreamer1.0-plugins-good 1.12.1-1 ii gstreamer1.0-x 1.12.1-1 ii libc6 2.24-12 ii libcairo2 1.14.8-1 ii libgdk-pixbuf2.0-0 2.36.5-2 ii libglib2.0-0 2.52.3-1 ii libgstreamer-plugins-base1.0-0 1.12.1-1 ii libgstreamer1.0-0 1.12.1-1 ii libgtk-3-0 3.22.16-1 ii libnautilus-extension1a 3.22.3-1 ii libpango-1.0-0 1.40.5-1 ii libpangocairo-1.0-0 1.40.5-1 ii libtotem-plparser18 3.10.7-1+b1 ii libtotem0 3.22.1-1 ii libx11-6 2:1.6.4-3 ii totem-common 3.22.1-1 Versions of packages totem recommends: ii gstreamer1.0-libav 1.12.1-1 ii gstreamer1.0-plugins-ugly 1.12.1-1 ii gstreamer1.0-pulseaudio 1.12.1-1 ii totem-plugins 3.22.1-1 Versions of packages totem suggests: pn gnome-codec-install <none> -- no debconf information