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