Phonon is not available Qt 4.8.7

Phonon is not available Qt 4.8.7

[Alex M]

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Hello!
I have a piece of my custom software which is depends on Qt4 + Phonon +
gstreamer 0.1 and two years ago I had successfully built oe-core image.
Recent version of oe-core (19 Aug 2015) contain QT_PHONON ?= "-no-phonon"
option inside qt4.inc file. Why this option banned in default Qt 4
configuration? Also I do not see qt4-plugin-phonon-backend-gstreamer
package in recent version, which my software also requires. Other
gstreamer-0.1 components is fine and already built. What I should do to
activate Phonon support for Qt4 in oe-core?

Also I saw "Phonon for Qt5" meta layers in meta-qt5-extra however I don't
understand how it will work without "***-plugin-phonon-backend-gstreamer"?
Is this package required in case of "Phonon for Qt5"? Should I rewrite my
old Qt4/Phonon code for this?

Thank you for attention :)

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Re: Phonon is not available Qt 4.8.7

[Martin Jansa]

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On Thu, Aug 20, 2015 at 05:18:47PM +0300, Alex M wrote:
> Hello!
> I have a piece of my custom software which is depends on Qt4 + Phonon +
> gstreamer 0.1 and two years ago I had successfully built oe-core image.
> Recent version of oe-core (19 Aug 2015) contain QT_PHONON ?= "-no-phonon"
> option inside qt4.inc file. Why this option banned in default Qt 4
> configuration? Also I do not see qt4-plugin-phonon-backend-gstreamer

git log is your friend (sort of)

commit 096b71a5c24378a449bc38063316555f02af8e18
Author: Alexander Kanavin <alex.kanavin@gmail.com>
Date:   Mon May 18 16:58:38 2015 +0300

    qt4: disable Phonon framework
    
    This allows removal of gstreamer 0.10 dependency from Qt4 recipe
    
    https://bugzilla.yoctoproject.org/show_bug.cgi?id=6294
    Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com>
    Signed-off-by: Alexander Kanavin <alexander.kanavin@linux.intel.com>
    Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>


> package in recent version, which my software also requires. Other
> gstreamer-0.1 components is fine and already built. What I should do to
> activate Phonon support for Qt4 in oe-core?

Undo this change in your distro configuration if you're still using 0.10
gstreamer.

> Also I saw "Phonon for Qt5" meta layers in meta-qt5-extra however I don't
> understand how it will work without "***-plugin-phonon-backend-gstreamer"?
> Is this package required in case of "Phonon for Qt5"? Should I rewrite my
> old Qt4/Phonon code for this?
> 
> Thank you for attention :)

> -- 
> _______________________________________________
> Openembedded-core mailing list
> Openembedded-core@lists.openembedded.org
> http://lists.openembedded.org/mailman/listinfo/openembedded-core


-- 
Martin 'JaMa' Jansa     jabber: Martin.Jansa@gmail.com

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Re: Phonon is not available Qt 4.8.7

[alexander.kanavin]

> Hello!
> I have a piece of my custom software which is depends on Qt4 + Phonon +
> gstreamer 0.1 and two years ago I had successfully built oe-core image.
> Recent version of oe-core (19 Aug 2015) contain QT_PHONON ?= "-no-phonon"
> option inside qt4.inc file. Why this option banned in default Qt 4
> configuration? Also I do not see qt4-plugin-phonon-backend-gstreamer
> package in recent version, which my software also requires. Other
> gstreamer-0.1 components is fine and already built. What I should do to
> activate Phonon support for Qt4 in oe-core?

The reasons for this are explained here:
https://bugzilla.yoctoproject.org/show_bug.cgi?id=6294

In the short term, don't use the master branch of oe-core. Use the current
stable branch (fido) which should still have the Qt4 with Phonon enabled.
It's also possible to use the master branch, by creating a custom layer
with a .bbappend file that tweaks the Qt4 build options, but I think it's
less hassle to roll back to fido.

In the long term, do port your software to Qt5. Qt4 itself goes out of
support at the end of 2015, and we plan to move it out of oe-core around
same time.

Alex