On Sunday 23 September 2007 16:48:23 Matthias Kretz wrote: > Hi Sebastian and Helio, > > On Sunday 23 September 2007, Sebastian Kügler wrote: > > On Sunday 23 September 2007 00:10:17 you wrote: > > > I saw the blog entry. > > > What help is needed in sound area. I can do a little from here at > > > least. > > > > The release team is currently trying to find out what exactly needs doing > > to get those different components release ready, for sound, Matthias is > > probably the one who knows this best. > > > > Matthias, can you fill me in? > > Phonon for local audio playback is working quite ok already, but there are > several issues still open:
Thanks Matthias, I've added your list to the Goals on techbase, can you check if the information is accurate? http://techbase.kde.org/Schedules/KDE4/4.0_Release_Beta_Goals > 1. https://bugzilla.redhat.com/show_bug.cgi?id=284171 (short version: lazy > symbol resolving in glibc is not threadsafe and can deadlock) This bug can > cause spurious deadlocks, though for me running with LD_BIND_NOW=1 made it > go away. > > 2. Sound hardware/ALSA setup: > a) Currently the default list of audio devices to use is in arbitrary > order. This needs to be fixed otherwise esd, artsd, jack or S/PDIF output > can turn up as most preferred device and make it look like nothing is > working. This might need something along the lines of a "hardware > database". > b) I've had a report that outputting to a dmix: ALSA device using a > hardware mixing capable soundcard made mixing not work at all (don't ask me > why), so the ALSA device name choosing algorithm might need to become a bit > smarter. I think the safest bet for now is to use the default:CARD=... > device string, but with that you can only choose what card you want, not > what device on that card (I don't have hardware where this would make a > difference, so no idea if it's needed). > c) Even though defaults.pcm.ipc_gid is set to audio and > defaults.pcm.ipc_perm is set to 0660, dmix does not work for more than one > user at the same time (both users are in the audio group). A workaround is > to set ipc_perm to 0666, but a real fix would be nicer. > > 3. Once again switching soundcards with phonon-xine is broken, I have to > look into it... > > 4. kmix is not in a good state (yet). E.g. it crashes on application > shutdown for me (and with that forgetting all changes done in the config > dialog). It still does not react on plugged/unplugged soundcard or > new/removed software control. > > 5. Playing short sound files sometimes only plays the start of the sound > (which can be almost nothing). This is a big problem for notifications. > Some reported that this is a bug in xine-lib, but I have not looked into > the issue. > > 6. xine-lib behaves bad wrt. memory allocations. run e.g. mediaobjecttest > in valgrind --tool=massif -- sebas http://www.kde.org | http://vizZzion.org | GPG Key ID: 9119 0EF9
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