FS#54610 - [qt5-multimedia] Seems to have a problem with the new gstreamer

Attached to Project: Arch Linux
Opened by Nano Thirteen (nano13) - Tuesday, 27 June 2017, 14:06 GMT
Last edited by Antonio Rojas (arojas) - Wednesday, 25 October 2017, 16:33 GMT
Task Type Bug Report
Category Packages: Extra
Status Closed
Assigned To Antonio Rojas (arojas)
Felix Yan (felixonmars)
Architecture All
Severity Low
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

In March of this year, i had written a software including a minimalistic audio-recorder for building an audio-database for linguistical purposes. Now the recording does not work anymore and i have tracked down the error to be related with QtMultimedia and the upgrade of gstramer:

QtMultimedia.QAudioRecorder throws the following warning, when i try to do some recordings:
Could not create a media muxer element: ""

As you can see here:
https://code.woboq.org/qt5/qtmultimedia/src/plugins/gstreamer/mediacapture/qgstreamercapturesession.cpp.html
at line 130, this warning is related to gstreamer.

And the problem also seems to occur since the gstreamer-update:
[2017-05-12 15:24] [ALPM] upgraded gstreamer (1.10.4-1 -> 1.12.0-1)
(pacman.log); at least QAudioRecorder surely worked on March and very likely on April, too.

As you can see here:
https://bugs.launchpad.net/brewtarget/+bug/1407480
there is a problem related to newer gstreamer-versions than 1.10 with QtMultimedia.

Of course i already tried to install gstreamer0.10-good-plugins from AUR with all dependencies, but this did not solve the problem for me.

This task depends upon

Closed by  Antonio Rojas (arojas)
Wednesday, 25 October 2017, 16:33 GMT
Reason for closing:  Upstream
Comment by Antonio Rojas (arojas) - Thursday, 29 June 2017, 19:32 GMT
That link you posted is almost 3 years old and surely unrelated to your current issue. Please report this upstream to Qt.
Comment by Antonio Rojas (arojas) - Wednesday, 11 October 2017, 09:36 GMT
Status with 5.9.2? Have you reported it upstream?
Comment by Nano Thirteen (nano13) - Monday, 16 October 2017, 18:32 GMT
The problem is still present. I needed the software working quite urgently in that time, so i had to use windows / mac, but i think i would like to report the bug upstream to Qt in the next weeks.

Loading...