Bug 311446

Summary:	setCurrentTitle called too early
Product:	[Applications] amarok	Reporter:	Harald Sitter <sitter>
Component:	Playback	Assignee:	Amarok Developers <amarok-bugs-dist>
Status:	RESOLVED FIXED
Severity:	normal	CC:	matej
Priority:	NOR
Version:	2.6.0
Target Milestone:	2.7
Platform:	unspecified
OS:	Linux
Latest Commit:	http://commits.kde.org/amarok/090070dfe700552a89de3b35cdd6e5bada799fad	Version Fixed In:	2.7
Sentry Crash Report:
Bug Depends on:
Bug Blocks:	305708, 308084

Description Harald Sitter 2012-12-10 00:37:30 UTC

PHONON-VLC   BEGIN: void Phonon::VLC::MediaController::setCurrentTitle(int) 
PHONON-VLC     title: 3 
PHONON-VLC     No media or no subitems :( 
PHONON-VLC   END__: void Phonon::VLC::MediaController::setCurrentTitle(int) [Took: 0s] 
PHONON-VLC END__: virtual QVariant Phonon::VLC::MediaController::interfaceCall(Phonon::AddonInterface::Interface, int, const QList<QVariant>&) [Took: 0s] 
PHONON-VLC BEGIN: virtual void Phonon::VLC::MediaObject::play() 
PHONON-VLC   BEGIN: void Phonon::VLC::MediaObject::setupMedia() 
PHONON-VLC     BEGIN: void Phonon::VLC::MediaController::resetMembers() 
PHONON-VLC     END__: void Phonon::VLC::MediaController::resetMembers() [Took: 0s] 
PHONON-VLC     BEGIN: void Phonon::VLC::MediaController::resetMembers() 
PHONON-VLC     END__: void Phonon::VLC::MediaController::resetMembers() [Took: 0s] 
PHONON-VLC   END__: void Phonon::VLC::MediaObject::setupMedia() [Took: 0s] 

as described in another bug you should really pause and then apply stuff there and once done switch to playing. in this particular instance resetting of the MO is done in a lazy fashion (resetting is not viable up until play is called as setting a source is async to what is playing right now...) so audio cd playback will not work with phonon vlc as it is right now as the value you set before play is discarded at play.


Reproducible: Always

Comment 1 Matěj Laitl 2012-12-12 16:00:31 UTC

Thanks for reporting, indeed another pearl of our EngineController mess. Will try to have a look at it before 2.7 final, although I fear the fix won't be easy/regression-worry-free.

Comment 2 Matěj Laitl 2013-01-10 22:45:45 UTC

Git commit 090070dfe700552a89de3b35cdd6e5bada799fad by Matěj Laitl.
Committed on 10/01/2013 at 23:30.
Pushed by laitl into branch 'master'.

EngineController: various Audio CD playback fixes

BUGFIXES:
 * Various improvements that should result in more stable Audio CD
   playback.

Many things originally pointed out by Harald, our lord-president.
Related: bug 305708, bug 308084
FIXED-IN: 2.7
DIGEST: Amarok resurrects Audio CD playback, at least with phonon-gstreamer

M  +2    -0    ChangeLog
M  +1    -0    src/CMakeLists.txt
M  +43   -114  src/EngineController.cpp
M  +1    -29   src/EngineController.h
A  +87   -0    src/playback/DelayedDoers.cpp     [License: GPL (v2+)]
A  +97   -0    src/playback/DelayedDoers.h     [License: GPL (v2+)]

http://commits.kde.org/amarok/090070dfe700552a89de3b35cdd6e5bada799fad