streamreader implemenation defunct

Bug #1028901 reported by Harald Sitter on 2012-07-25
This bug affects 1 person
Affects Status Importance Assigned to Milestone
phonon-backend-gstreamer (Ubuntu)
Harald Sitter

Bug Description


Phonon applications that use the AbstractMediaStream feature of Phonon fail to produce output as the phonon gstreamer implementation of this feature is not working correctly in 4.6.0. This affects all KDE applications with sound output as Phonon has an internal fallback mechanism that would use an AbstractMediaStream when a URL cannot be played by the backend directly (which is the case for most KIO resources).

[Test Case]
* Install tomahawk from
* Configure a jabber account and get a friend with tomahawk available
* Try to stream from their collection
* Observe that no output is generated at all.

[Regression Potential]
* As the feature was completely broken there is no potential for regression.


Due to internal changes in 4.6.0 the streamreader implemenation is broken, such that streaming from any abstractmediastream does not produce any output.

Harald Sitter (apachelogger) wrote :
Changed in phonon-backend-gstreamer (Ubuntu Precise):
assignee: nobody → Harald Sitter (apachelogger)

Hello Harald, or anyone else affected,

Accepted into precise-proposed. The package will build now and be available in a few hours in the -proposed repository.

Please help us by testing this new package. See for documentation how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please change the bug tag from verification-needed to verification-done. If it does not, change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at . Thank you in advance!

Changed in phonon-backend-gstreamer (Ubuntu Precise):
status: New → Fix Committed
tags: added: verification-needed
muesli (muesli) wrote :

Successfully tested with self-compiled Phonon & Phonon-GStreamer: HTTP and remote Tomahawk sources work. Will try the packages now.

tags: added: verification-done
removed: verification-needed
Harald Sitter (apachelogger) wrote :

Also confirmed with packages from proposed.

The verification of this Stable Release Update has completed successfully and the package has now been released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regresssions.

Launchpad Janitor (janitor) wrote :

This bug was fixed in the package phonon-backend-gstreamer - 4:4.7.0really4.6.2-0ubuntu0.1

phonon-backend-gstreamer (4:4.7.0really4.6.2-0ubuntu0.1) precise-proposed; urgency=low

  * SRU update (LP: #1028903)
    - Fix deadlock in aboutToFinish (LP: #1005262)
    - Fix crash on null pointer (LP: #1028887)
    - Fix metadata emission for http urls (LP: #1028890)
    - Fix memleaks (LP: #1028895)
    - Fix streamreader/AbstractMediaStream implementation (LP: #1028901)
 -- Harald Sitter <email address hidden> Wed, 25 Jul 2012 15:04:21 +0200

Changed in phonon-backend-gstreamer (Ubuntu Precise):
status: Fix Committed → Fix Released
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