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[HowTo] Get phonon-xine as backend with at least kde 4.8.5
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aCOSwt
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PostPosted: Wed Jul 18, 2012 12:47 pm    Post subject: [HowTo] Get phonon-xine as backend with at least kde 4.8.5 Reply with quote

I WARNING

Following this how-to, you will be on your own.
Gentoo officially drop phonon-xine from the portage's tree, this means that Gentoo definitely does not support this method.
This solution is necessarily a dead end as there will certainly be a day when phonon-xine becomes definitely incompatible with phonon.
Let's just expect that when this time comes, the other backends will have reached an equivalent level of reliability and functionality.

I suggest you immediately read III.1.4 warning which mentions the most severe constraint impacting this howto before deciding to proceed.

I tested this successfully under amd64 stable arch and kde 4.7.4 and 4.8.3.

[EDIT : 2012.SEP.05 : Works also with 4.8.5]

Ultimate warning : No Gentoo Dev will tell you that it is sensible to follow this howto ! :twisted:

II PURPOSE

This howto is written for those who are not happy with the two existing phonon backends : phonon-vlc and phonon-gstreamer, whatever their reasons
(I personally get half a dozen that can be found using the search facility of this forum :twisted: ) and who would look for a phonon backend that would be :
- Jack-aware
- Capable of reliably selecting the output sound device when more than a single hardware device available
- Capable of High and reliable quality resampling
etc...

III PREPARING THE LOCAL OVERLAY

You will need four entries in your local overlay :

- kde-base/phonon-kde
- media-libs/phonon
- media-libs/phonon-xine
- media-libs/xine-lib

1/ kde-base/phonon-kde

- Create the needed directories (when they do not already exist)
Code:
# cd BaseName_of_your_local_overlay
# mkdir kde-base
# mkdir kde-base/phonon-kde
# cd kde-base/phonon-kde

- Copy the version of the phonon-kde ebuild corresponding to the package already installed on your system. (To date, you get 4.7.4 ; 4.8.3 and 4.8.4)
Code:
# cp BaseName_of_your_GentooPortage_Tree/kde-base/phonon-kde/phonon-kde-4.X.Y.ebuild .

- Open this file under your preferred editor then :

a/ Look for a line showing
Code:
IUSE="alsa debug pulseaudio
and change it for
Code:
IUSE="alsa debug xine pulseaudio"

b/ Look for a line showing
Code:
>=media-libs/phonon-4.4.3
and change it for
Code:
>=media-libs/phonon-4.4.3[xine?]

c/ Look for a line showing
Code:
$(cmake-utils_use_with alsa)
and immediately after this line, insert a new line showing
Code:
$(cmake-utils_use_with xine)

d/ 2 lines above, you get a line of code showing
Code:
-DWITH_Xine=OFF
, delete it.
That's it you can save and exit your editor.
Code:
# repoman manifest

2/ media-libs/phonon

- Create the needed directories (when they do not already exist)
Code:
# cd BaseName_of_your_local_overlay
# mkdir media-libs
# mkdir media-libs/phonon
# cd media-libs/phonon

- Copy the version of the phonon ebuild corresponding to the last stable (To date, 4.5.1-r1)
Code:
# cp BaseName_of_your_GentooPortage_Tree/media-libs/phonon/phonon-4.5.1-r1.ebuild .

- Open this file under your preferred editor then :

a/ Look for a line showing
Code:
IUSE="aqua debug +gstreamer pulseaudio vlc"
and change it for
Code:
IUSE="aqua debug +gstreamer pulseaudio vlc xine"

b/ Look for a line showing
Code:
REQUIRED_USE="|| ( aqua gstreamer vlc )"
and change it for
Code:
REQUIRED_USE="|| ( aqua gstreamer vlc xine )"

c/ Look for a line showing
Code:
vlc? ( >=media-libs/phonon-vlc-0.3.2 )
and immediately after this line, insert a new line showing
Code:
xine? ( >=media-libs/phonon-xine-0.4.4 )

That's it you can save and exit your editor.
Code:
# repoman manifest


3/ media-libs/phonon-xine

- Create the needed directories (when they do not already exist)
Code:
# cd BaseName_of_your_local_overlay/media-libs
# mkdir phonon-xine
# cd phonon-xine

- Download last phonon-xine ebuild from there : http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/media-libs/phonon-xine/phonon-xine-4.4.4.ebuild?revision=1.5 into the present working directory and name it phonon-xine-4.4.4.ebuild

Code:
# repoman manifest

- This should among other things download the necessary tarball.
- If it fails downloading the necessary tarball then refer to http://lfs.traduc.org/view/blfs-24012011/kde4/phonon-backend-xine.html, fetch the tarball from the link mentioned as well as the MD5 info and copy the file downloaded in your portage distfiles directory as phonon-backend-xine-4.4.4.tar.bz2
Then re repoman manifest

4/ media-libs/xine-lib

WARNING : last xine-lib stable under Gentoo-Portage to date is 1.2.1-r1
Because it was arbitrarily declared insufficiently tested, phonon-backend devs decided to prevent the build of phonon-xine with xine-lib-1.2
So phonon-xine is, as is, only buildable with xine-lib < 1.2
Of course it is possible to bypass this block but this would require patching some files in the phonon-xine tarball which goes beyond the purpose of this howto.
So, you should :

a/ Check if you get installed on your system some packages depending on xine-lib
Code:
# equery depends xine-lib

Then if the result is not empty, wonder whether these packages actually need a >= 1.2 xine-lib
Only if you are happy with a xine-lib < 1.2 then proceed to b/.

b/ Create the needed directories (when they do not already exist)
Code:
# cd BaseName_of_your_local_overlay/media-libs
# mkdir xine-lib
# cd xine-lib


c/ Download last xine-lib ebuild from there : http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/media-libs/xine-lib/xine-lib-1.1.20.ebuild?revision=1.7 into the present working directory and name it xine-lib-1.1.20.ebuild
Code:
# repoman manifest

- This should among other things download the necessary tarball.
- If it fails downloading the necessary tarball then refer to http://lfs.traduc.org/view/blfs-24012011/multimedia/xine-lib.html, fetch the tarball from the link mentioned as well as the MD5 info and copy the file downloaded in your portage distfiles directory as xine-lib-1.1.20.tar.xz
Then re repoman manifest

5/ If you did all this work under root, change the owner/group of all the files you created :
Code:

# chown -R portage kde-base
# chown -R portage media-libs
# chgrp -R portage kde-base
# chgrp -R portage media-libs


IV/ REBUILDING

1/ Setting useflags

Of course you want to set the xine useflag for the phonon and the phonon-kde packages... what else would we be doing here ? :lol:
Do this according to your preferred method, mine is to update my /etc/portage/package.use with the following lines :
Code:
kde-base/phonon-kde                 alsa -debug -pulseaudio xine
media-libs/phonon                   -debug, gstreamer, -pulseaudio, vlc, xine

And of course, you won't forget setting the xine-lib use flags according to your needs, mines are :
+X, +a52, +aac, +alsa, +css, +dts, +flac, +jack, +mad, +mmap, +mng, +modplug, +musepack, +opengl, +sdl, +speex, +theora, +truetype, +v4l, +vorbis, +wavpack, +xcb, +xv, +xvmc, -aalib, -libcaca, -nls, -directfb, -ipv6, -fbcon, -samba, -dxr3, -oss, -xinerama, -vcd, -imagemagick, -gtk, -pulseaudio, -vis

And for phonon-xine, mines are : -debug, +xcb

2/ Mask xine-lib >= 1.1.20
Code:
echo ">=media-libs/xine-lib-1.1.20" > /etc/portage/package.mask

3/ rebuilding xine-lib
Code:
# emerge xine-lib

Remember the result of III.4.a : If you had other packages depending on xine-lib then of course, you'll need to
Code:
# revdep-rebuild

4/ rebuilding the rest :
Code:
# emerge phonon-xine
# emerge phonon
# emerge phonon-kde


OK, that's it you should get the possibility to select the xine backend under kde's systemsettings/multimedia/phonon/backend tab.
Do not forget that after setting a new backend, KDE requires you logoff and login again before selecting your device preferences.

This works reliably for me, but I may have done errors when writing this howto.
Please cross-check twice and feel free to correct my post.
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Last edited by aCOSwt on Mon Sep 17, 2012 8:06 pm; edited 7 times in total
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PostPosted: Sun Aug 05, 2012 9:06 am    Post subject: Reply with quote

So it's possible to keep the old-good xine backend?
Great, on my computer, xine has always worked right. Not like vlc and gstreamer.

Thank you.
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