I'm running chromium-browser Version 41.0.2272.76 Ubuntu 14.04 (64-bit) and installed the chromium-codecs-ffmpeg and chromium-codecs-ffmpeg- extra but I still can't play mp4/H.264 videos in the browser. I get a black window with a play button, an empty progress bar, "0:00" and a disabled audio button, but no video frame or playback.
The same video plays in Firefox. VLC reports Stream 0 is Video, H264 - MPEG AVC (part 10) (avc1), decoded format Planar 4:2:0 YUV; Stream 1 is audio MPEG AAC Audio (mp4a1) I believe I've installed these correctly: $ dpkg-query -l chromium-browser Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name Version Architecture Description +++-========================-=================-=================-===================================================== ii chromium-browser 41.0.2272.76-0ubu amd64 Chromium web browser, open-source version of Chrome $ dpkg-query -l chromium-codecs-ffmpeg-extra Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name Version Architecture Description +++-========================-=================-=================-===================================================== ii chromium-codecs-ffmpeg-e 41.0.2272.76-0ubu amd64 Extra ffmpeg codecs for the Chromium Browser $ dpkg-query -l chromium-codecs-ffmpeg Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name Version Architecture Description +++-========================-=================-=================-===================================================== ii chromium-codecs-ffmpeg 41.0.2272.76-0ubu amd64 Free ffmpeg codecs for the Chromium Browser -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to chromium-browser in Ubuntu. https://bugs.launchpad.net/bugs/991758 Title: Chromium web browser not showing mp4 videos Status in chromium-browser package in Ubuntu: Triaged Bug description: :::::::::::::::::::::: PROBLEM :: :::::::::::::::::::::: embedded playback of mp4 videos works in Firefox, fails in Chromium ::::::::::::::::::::::::::: REPRODUCE :: ::::::::::::::::::::::::::: examples are the videos in coursera.org If you are signed up for ml class, start chromium-browser with url https://class.coursera.org/ml/lecture/view?lecture_id=1 If chromium-codecs-ffmpeg-extra is not installed, which it isn't by default, you get a black screen for the video. Reproduced on Ubuntu12.04 and 11.10 chromium-browser --version Chromium 18.0.1025.151 Ubuntu 12.04 ::::::::::::::::::::::: SOLUTION :: ::::::::::::::::::::::: Ubuntu software center should suggest the addon plugin equivalent to: sudo apt-get install chromium-codecs-ffmpeg-extra ::::::::::::::::::: DETAILS :: ::::::::::::::::::: To tell if the library is installed: dpkg-query -l chromium-codecs-ffmpeg-extra The needed library is installed as: /usr/lib/chromium-browser/libffmpegsumo.so I found this out with the command dpkg-query -L chromium-codecs-ffmpeg-extra To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/chromium-browser/+bug/991758/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp