Qt multimeia GStreamer-Critical error!
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Hi,
Did you check that you have all plugin packages installed on your distribution ?
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@SGaist
do you mean Gstreamer plugins?
i try to follow the tips "Install GStreamre on Ubuntu or Debian" inbelow
https://gstreamer.freedesktop.org/documentation/installing/on-linux.html
but the command fails ,so i do not know exactly how many plugins for GStreamer... -
What exact command did you use ?
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@SGaist
do you mean Gstreamer plugins?
i try to follow the tips "Install GStreamre on Ubuntu or Debian" inbelow
https://gstreamer.freedesktop.org/documentation/installing/on-linux.html
but the command fails ,so i do not know exactly how many plugins for GStreamer...@JiujiuTong On that page it is:
apt-get install ....this for sure cannot work - you need to replace .... with actual package names.
Looks like GStreamer folks do not like/use Debian/Ubuntu :-) -
It might be something like
sudo apt-get install ubuntu-restricted-extras
some also had to do
apt-get install gstreamer0.10-alsabut it was in older ubuntu. Didnt try in newest.
https://ubuntuforums.org/showthread.php?t=1101525 -
@SGaist @jsulm @mrjj
i use the following command
sudo apt-get gstreamer1-devel gstreamer1-plugins-base-tools gstreamer1-devel-docs gstreamer1-plugins-base-devel gstreamer1-plugins-base-devel-docs gstreamer1-plugins-good gstreamer1-plugins-good-extras gstreamer1-plugins-ugly gstreamer1-plugins-ugly-devel-docs gstreamer1-plugins-bad-free gstreamer1-plugins-bad-free-devel gstreamer1-plugins-bad-free-extras.
these plugins seems do not exist.so i use sudo apt-cache search gstreamer* , and install many plugins,
including gstreamer1.0-plugins-ugly, gstreamer1.0-plugins-bad, gstreamer1.0-plugin-good
now there is only one warning:
GStreamer: unable to pause pause- "file:///home/tong/src/Wildlife.wmv"
warning: no decoder available for type "video/x-ms-asf"
seems need to install decoders...another question:
As my target is rapsberry pi3,i try to play video with default GStreamer command，the video is not fluency. i need to enable hardware-accelerate when using QT to play video, Does QT support this feature when play video? how to enable it ? thank you ! -
@SGaist @jsulm @mrjj
i use the following command
sudo apt-get gstreamer1-devel gstreamer1-plugins-base-tools gstreamer1-devel-docs gstreamer1-plugins-base-devel gstreamer1-plugins-base-devel-docs gstreamer1-plugins-good gstreamer1-plugins-good-extras gstreamer1-plugins-ugly gstreamer1-plugins-ugly-devel-docs gstreamer1-plugins-bad-free gstreamer1-plugins-bad-free-devel gstreamer1-plugins-bad-free-extras.
these plugins seems do not exist.so i use sudo apt-cache search gstreamer* , and install many plugins,
including gstreamer1.0-plugins-ugly, gstreamer1.0-plugins-bad, gstreamer1.0-plugin-good
now there is only one warning:
GStreamer: unable to pause pause- "file:///home/tong/src/Wildlife.wmv"
warning: no decoder available for type "video/x-ms-asf"
seems need to install decoders...another question:
As my target is rapsberry pi3,i try to play video with default GStreamer command，the video is not fluency. i need to enable hardware-accelerate when using QT to play video, Does QT support this feature when play video? how to enable it ? thank you !Install gstreamer1-plugins-ugly plug-in for video/x-ms-asf
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Install gstreamer1-plugins-ugly plug-in for video/x-ms-asf
@jsulm @SGaist @mrjj
there seems something strange, as Gstreamer0.10-plugins-ugly is no longer available, when i remove all gstreamer0.1 packages, i try to run my project, there is info:
defaultserviceprovider::requestservice(): no service found for - "org.qt-project.qt.mediaplayer".
then i reinstall all gstreamer0.1 packages.
the info is :
GStreamer: unable to pause pause- "file:///home/tong/src/Wildlife.wmv"
warning: no decoder available for type "video/x-ms-asf"
does it mean QT still use gstreamer0.1 package?
but gstreamer0.10-plugins-bad, gstreamer0.10-plugins-ugly no long available.
i have installed gstreamer1.0-plugins-ugly, gstreamer1.0-plugins-bad, gstreamer1.0-plugin-good. -
@jsulm @SGaist @mrjj
there seems something strange, as Gstreamer0.10-plugins-ugly is no longer available, when i remove all gstreamer0.1 packages, i try to run my project, there is info:
defaultserviceprovider::requestservice(): no service found for - "org.qt-project.qt.mediaplayer".
then i reinstall all gstreamer0.1 packages.
the info is :
GStreamer: unable to pause pause- "file:///home/tong/src/Wildlife.wmv"
warning: no decoder available for type "video/x-ms-asf"
does it mean QT still use gstreamer0.1 package?
but gstreamer0.10-plugins-bad, gstreamer0.10-plugins-ugly no long available.
i have installed gstreamer1.0-plugins-ugly, gstreamer1.0-plugins-bad, gstreamer1.0-plugin-good.@JiujiuTong said in Qt multimeia GStreamer-Critical error!:
but gstreamer0.10-plugins-bad, gstreamer0.10-plugins-ugly no long available
Are you sure: https://launchpad.net/ubuntu/xenial/+package/gstreamer0.10-plugins-ugly ?
Did you activate "universe", "restricted" and "multiverse" repositories? -
@JiujiuTong said in Qt multimeia GStreamer-Critical error!:
but gstreamer0.10-plugins-bad, gstreamer0.10-plugins-ugly no long available
Are you sure: https://launchpad.net/ubuntu/xenial/+package/gstreamer0.10-plugins-ugly ?
Did you activate "universe", "restricted" and "multiverse" repositories? -
@jsulm
i have check all repositories in ubuntu software tab.
are there other ways to check the repositories ?@JiujiuTong Did you activate universe repository?
If so thensudo apt-get install gstreamer0.10-plugins-uglyshould be enough.
I'm usually using synaptic graphical tool - you can search for gstreamer0.10-plugins-ugly there as well and check whether universe repository is activated.
Also you can useapt-cache search gstreamer0.10-plugins-uglyto search.
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@JiujiuTong Did you activate universe repository?
If so thensudo apt-get install gstreamer0.10-plugins-uglyshould be enough.
I'm usually using synaptic graphical tool - you can search for gstreamer0.10-plugins-ugly there as well and check whether universe repository is activated.
Also you can useapt-cache search gstreamer0.10-plugins-uglyto search.
@jsulm
i have checked the four repositories in system settings ->software& updates->ubuntu software tab.
but failed to run sudo apt-get install gstreamer0.10-plugins-ugly
info:
Package gstreamer0.10-plugins-ugly is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another sourceE: Package 'gstreamer0.10-plugins-ugly' has no installation candidate
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@jsulm
i have checked the four repositories in system settings ->software& updates->ubuntu software tab.
but failed to run sudo apt-get install gstreamer0.10-plugins-ugly
info:
Package gstreamer0.10-plugins-ugly is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another sourceE: Package 'gstreamer0.10-plugins-ugly' has no installation candidate
@JiujiuTong OK, looks like it is really not available on Ubuntu 16.04
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@JiujiuTong OK, looks like it is really not available on Ubuntu 16.04
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@JiujiuTong Can you play this file with, for example, VLC?
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IIRC, since 5.8 the backend uses GStreamer 1.0. Otherwise, you can re-build the QtMultmedia module yourself against GStreamer 1.0
On a side note, unless you need specific features or bug fixes of more recent versions, why not use your distribution provided Qt for development ?
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@JiujiuTong Can you play this file with, for example, VLC?
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@jsulm
yes,i can play file with VLC, but there are some other logical with my project, and i need to control playlist and other thing. so i think the best way is use functions provided by QT.@JiujiuTong I didn't say you should use VLC - I only wanted to know whether the file is broken.
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@JiujiuTong I didn't say you should use VLC - I only wanted to know whether the file is broken.
@jsulm
the file is OK, it can be played by double click -
IIRC, since 5.8 the backend uses GStreamer 1.0. Otherwise, you can re-build the QtMultmedia module yourself against GStreamer 1.0
On a side note, unless you need specific features or bug fixes of more recent versions, why not use your distribution provided Qt for development ?
@SGaist
sorry for my poor English, do you mean i should use the latest QT version ?
