Gstreamer

[Hoyt]

I am trying to execute a Qt 5.8 app on Ubuntu 16.04. I have loaded gstreamer0.10 via

 sudo apt-get update
 sudo apt-get install gstreamer0.10-x
 sudo apt-get –f install

Following various suggestions on the web, I have also loaded

 sudo add-apt-repository ppa:mc3man/gstffmpeg-keep
 sudo add-apt-repository ppa:mc3man/trusty

However, when my app attempts to play a video, I receive the following error:

 Warning: No decoder available for type 'audio/x-m4a'
 Error: Your GStreamer installation is missing a plug-in.

What is the proper method of installing gstreamer so that Qt can play videos?

Thank you in advance.

Hoyt

[SGaist]

Hi,

You also need to install the gstreamer plugin packages.

[Hoyt]

SGaist,

I just tried to install the gstreamer-ugly plugin via

 sudo apt install gstreamer0.10-plugins-ugly

However, it seems that that package is no longer available. Do you know where I can find a current version of the ugly plugins?

Hoyt

P.S. Thanks for helping me again!

[SGaist]

Did you already install all the other plugin packages ?

In any case, why not upgrade to Qt 5.9.1 ? It uses GStreamer 1.0 by default.

[Hoyt]

I think that upgrading is a very good suggestion. I will do so.

Thanks again SGaist.

hf

[Hoyt]

SGaist,

I just learned that my target platform does not currently support Qt 5.9. Thus, I am still in need of a method of loading gstreamer0.10 ugly plugins on to a ubuntu derivative platform.

Hoyt

[Hoyt]

From various websites, including a post from SGaist, Qt 5.8 uses gstreamer 1.0 not 0.10. I have rebuilt my target machine and loaded gstreamer 1.0 via

 sudo apt-get install gstreamer1.0

This command installs the gstreamer plugins also.

However, I am still having the identical error when trying to play a video.

 Warning: No decoder available for type 'audio/x-m4a'
 Error: Your GStreamer installation is missing a plug-in.

Thus, I am still in need of assistance.

Hoyt

[Hoyt]

Group,

At least one way of solving the problem for Qt 5.8 and a ubuntu 16.04 derivative target is by the following commands:

  i)	sudo apt-get install gstreamer1.0-plugins
  ii)	sudo apt-get install gstreamer1.0-libav

Hoyt