cannot play video, complains about missing support for Quicktime

Status changed to 'Confirmed' because the bug affects multiple users.

Same problem here, on an upgraded 11.10 32bits.

Here's some info, running the program from the commandline

porta@nalgueta ~ $ minitube
Object::connect: No such signal org::gnome::SettingsDaemon::MediaKeys::MediaPlayerKeyPressed(QString,QString)
GET "http://gdata.youtube.com/feeds/api/videos?max-results=10&start-index=1&q=soundgarden"
QAbstractItemModel::endInsertRows: Invalid index ( 1 , 0 ) in model ListModel(0x913d6d8)
GET "http://www.youtube.com/get_video_info?video_id=3mbBbFH9fAg&el=embedded&ps=default&eurl=&gl=US&hl=en"
GET "http://i.ytimg.com/vi/3mbBbFH9fAg/0.jpg"
GET "http://i.ytimg.com/vi/K913KVe3kH8/0.jpg"
GET "http://i.ytimg.com/vi/ySzrJ4GRF7s/0.jpg"
GET "http://i.ytimg.com/vi/XmIqIVxUuKs/0.jpg"
GET "http://i.ytimg.com/vi/T0_zzCLLRvE/0.jpg"
GET "http://i.ytimg.com/vi/sC2GjXMk7i4/0.jpg"
GET "http://i.ytimg.com/vi/pBZs_Py-1_0/0.jpg"
GET "http://i.ytimg.com/vi/EU4L6THYAbM/0.jpg"
GET "http://i.ytimg.com/vi/dbckIuT_YDc/0.jpg"
GET "http://i.ytimg.com/vi/iHwA76bsxJE/0.jpg"
GET "http://www.youtube.com/get_video_info?video_id=3mbBbFH9fAg&el=vevo&ps=default&eurl=&gl=US&hl=en"
Found format 18
GET "http://o-o.preferred.cablevision-eze1.v17.lscache2.c.youtube.com/videoplayback?sparams=id%2Cexpire%2Cip%2Cipbits%2Citag%2Csource%2Cratebypass%2Ccp&fexp=909703%2C912602&itag=18&ip=190.0.0.0&signature=1BCB2D934BD5FF47F09C80CA504A5B718DF55528.9D63CF31D979E1315388A347C4945891509604D8&sver=3&ratebypass=yes&source=youtube&expire=1320260400&key=yt1&ipbits=8&cp=U0hRRVJRTl9FSkNOMV9KS1JFOlJPaE53S2xqUkhV&id=de66c16c51fd7c08"
Playing "/tmp/minitube-porta.mp4"
Phonon error: "The required codec could not be found for installation." 2

I get exactly the same messages as in comment #3.
This happens on an upgraded Oneiric, using a PPA (https://launchpad.net/~ferramroberto/+archive/minitube) for the Minitube version 1.6

I asked the developer of minitube ( http://flavio.tordini.org/forums/topic/quicktime-not-found-in-ubuntu-11-10 ) and he says "It’s not QuickTime, it’s any working Phonon backend. Anyway this is a packaging issue. Cannot do anything about it."

And indeed, I started from an Ubuntu 11.10 LiveUSB system and there minitube v1.5 works out-of-the-box!
Something most be wrong on my installed system. Maybe I have to remove/reinstall some phonon/gstreamer packages...

Negative on that. I have phonon installed here with the gstreamer backend. Minitube really is complaining about a missing plug-in for the Quicktime protocol, not about a missing generic multimedia backend.

Here's what Phonon is complaining about whenever launching Minitube and attempting to show a video:

GET "http://o-o.preferred.elia-hel1.v19.lscache7.c.youtube.com/videoplayback?sparams=id%2Cexpire%2Cip%2Cipbits%2Citag%2Csource%2Cratebypass%2Ccp&fexp=912202%2C901803%2C916400&itag=18&ip=94.0.0.0&signature=08054213CB4642F65F6D2898D8A82439A2FE3656.D972FF14EBAB5B2E733F9E083A3D9880DCCF5166&sver=3&ratebypass=yes&source=youtube&expire=1320613200&key=yt1&ipbits=8&cp=U0hRRVZMUV9FSkNOMV9ORlVDOm5uTk1aeXIyaFdn&id=f13dcde9adb803d2"
Playing "/tmp/minitube-meracine.mp4"
Phonon error: "The required codec could not be found for installation." 2

Ok, it works for me now

puhhh :-)

Found the solution in this thread https://bbs.archlinux.org/viewtopic.php?pid=951463#p951463

sudo ln -s /usr/lib/gstreamer-0.10/libgstisomp4.so /usr/lib/gstreamer-0.10/libgstqtdemux.so

et voilà!

I upgraded from Ubuntu 11.04 to 11.10 on two machines, but only one machine was causing troubles with minitube. And in addition, minitubes works out-of-the-box in a 11.10 LiveSystem. Something must have been screwed up on my second machine...

It appears that 'gstreamer0.10-plugins-good' used to provide /usr/lib/gstreamer-0.10/libgstqtdemux.so until Natty. This is no longer the case since Oneiric and it breaks some user applications, as seen above with Minitube.

Status changed to 'Confirmed' because the bug affects multiple users.

This issue has returned to Precise. However, the workaround no longer works, because libgstisomp4.so has changed location:

/usr/lib/i386-linux-gnu/gstreamer-0.10/libgstisomp4.so