Re: xine with dmix

[James Courtier-Dutton <James@superbug.demon.co.uk>]

Jaroslav Kysela wrote:
> On Tue, 20 Jan 2004, Michel Dänzer wrote:
> 
> 
>>On Tue, 2004-01-20 at 17:06, Michel Dänzer wrote:
>>
>>>On Tue, 2004-01-20 at 16:29, Jaroslav Kysela wrote:
>>>
>>>>On Tue, 20 Jan 2004, Michel Dänzer wrote:
>>>>
>>>>Could you try the attached patch? If you add a line 'slowptr yes' to your 
>>>>dmix pcm definition, the snd_pcm_delay() function should be more precise.
>>>
>>>It seems to work perfectly, thank you very much!
>>
>>I have to take that back. :(
>>
>>I had put the slowptr in the wrong place (in the dmixer slave pcm
>>block), and xine silently fell back to using /dev/dsp (alsa-oss doesn't
>>seem to work with it). With the slowptr in the right place, I have now
>>verified that xine uses ALSA with it enabled, but it doesn't seem to
>>enhance sound quality much if at all.
>>
>>Sorry for the false confirmation. Any other ideas?
> 
> 
> Yes, I've tested xine with dmix today and I figured after several hours of 
> looking for totaly another problem, that it was 'snd_pcm_wait()' function 
> which causes trouble in conjunction with the xine ALSA code algorithm.
> 
> The result patch (attached to this mail and available also in CVS) is that
> xine works with dmix even without the slowptr option! So there is no 
> reason to make this option as default.
> 
> I'm happy that the next direct plugin related bug is solved.
> 
> 						Jaroslav
> 
> -----
> Jaroslav Kysela <perex@suse.cz>
> Linux Kernel Sound Maintainer
> ALSA Project, SuSE Labs
> 
> 

Thank you very much for your efforts to help xine work with alsa.

So, the problem was a bug in alsa?
As you have obviously looked very hard now at the xine code, would you 
have any recommendations for any changes?

Cheers
James




-------------------------------------------------------
The SF.Net email is sponsored by EclipseCon 2004
Premiere Conference on Open Tools Development and Integration
See the breadth of Eclipse activity. February 3-5 in Anaheim, CA.
http://www.eclipsecon.org/osdn