Am 26.09.2017 um 21:51 schrieb Phil Perry: > On 26/09/17 20:26, Roman Kennke wrote: >> Hello, >> >> I am trying to get MP4/H.264 playback in Firefox to work on my CentOS >> laptop (for vimeo). >> >> I installed the gstreamer plugins as described here: >> >> https://wiki.centos.org/TipsAndTricks/MultimediaOnCentOS7 >> >> (No, I did not install Flash, VLC and all the other stuff. I only >> want HTML5 MP4 playback..) >> >> I enabled the nux repos. I did install all available gstreamer >> plugins, i.e. -good -bad -ugly -ffmpeg etc. No success. >> >> Has anybody got mp4 playback working? >> >> Here's a test page: >> >> https://www.quirksmode.org/html5/tests/video.html >> >> Help would be appreciated! >> >> Best regards, Roman >> > > > Yes, it's working here, but I can't remember for sure exactly what I > needed to install to get it working. > > Here's my installed gstreamer packages: > > rpm -qa | grep gstreamer | sort > gstreamer-0.10.36-7.el7.x86_64 > gstreamer1-1.10.4-2.el7.x86_64 > gstreamer1-libav-1.0.6-1.el7.nux.x86_64 > gstreamer1-plugins-bad-free-1.10.4-2.el7.x86_64 > gstreamer1-plugins-bad-freeworld-1.0.6-1.el7.nux.x86_64 > gstreamer1-plugins-base-1.10.4-1.el7.x86_64 > gstreamer1-plugins-good-1.10.4-2.el7.x86_64 > gstreamer1-plugins-ugly-1.0.6-2.el7.nux.x86_64 > gstreamer-plugins-bad-free-0.10.23-23.el7.x86_64 > gstreamer-plugins-base-0.10.36-10.el7.x86_64 > gstreamer-plugins-good-0.10.31-13.el7.x86_64 > gstreamer-plugins-ugly-0.10.19-17.el7.nux.x86_64 > gstreamer-tools-0.10.36-7.el7.x86_64 > PackageKit-gstreamer-plugin-1.1.5-1.el7.x86_64 > phonon-backend-gstreamer-4.6.3-3.el7.x86_64 > > and here's everything from the nux repo on this box: > > rpm -qa | grep 'el7\.nux' | sort > faac-1.28-6.0.el7.nux.x86_64 > faad2-libs-2.7-5.el7.nux.x86_64 > ffmpeg-2.6.8-3.el7.nux.x86_64 > ffmpeg-libs-2.6.8-3.el7.nux.x86_64 > gstreamer1-libav-1.0.6-1.el7.nux.x86_64 > gstreamer1-plugins-bad-freeworld-1.0.6-1.el7.nux.x86_64 > gstreamer1-plugins-ugly-1.0.6-2.el7.nux.x86_64 > gstreamer-plugins-ugly-0.10.19-17.el7.nux.x86_64 > libavdevice-2.6.8-3.el7.nux.x86_64 > libcddb-1.3.2-12.el7.nux.x86_64 > libdca-0.0.5-7.el7.nux.x86_64 > libdvdcss-1.2.13-1.el7.nux.x86_64 > libmimic-1.0.4-7.el7.nux.x86_64 > libmms-0.6.4-1.el7.nux.x86_64 > libmpeg2-0.5.1-10.el7.nux.x86_64 > libquicktime-1.2.4-19.el7.nux.x86_64 > librtmp-2.4-2.20131205.gitdc76f0a.el7.nux.x86_64 > libsidplay-1.36.60-2.el7.nux.x86_64 > live555-2013.11.26-1.el7.nux.x86_64 > mjpegtools-libs-2.1.0-5.el7.nux.x86_64 > nux-dextop-release-0-5.el7.nux.noarch > opencore-amr-0.1.3-3.el7.nux.x86_64 > twolame-libs-0.3.13-3.el7.nux.x86_64 > vlc-2.2.5.1-2.el7.nux.x86_64 > vlc-core-2.2.5.1-2.el7.nux.x86_64 > vo-amrwbenc-0.1.2-1.el7.nux.x86_64 > x264-libs-0.142-11.20141221git6a301b6.el7.nux.x86_64 > x265-libs-1.9-1.el7.nux.x86_64 > xvidcore-1.3.2-5.el7.nux.x86_64 > > > Let me know if you need info on other installed packages. Thanks, that helped! The missing part was ffmpeg-libs and its dependencies. Thanks and cheers, Roman