* Sound in QT-Threads [not found] <3D2287D0.1020600@emt.iis.fhg.de> @ 2002-07-03 6:04 ` Gabriel Gatzsche 2002-07-05 15:30 ` Takashi Iwai 0 siblings, 1 reply; 2+ messages in thread From: Gabriel Gatzsche @ 2002-07-03 6:04 UTC (permalink / raw) To: alsa-devel > Hello! > I have made a program with two qt-threads. One for reading from > soundcard, one for writing. > There are no problems if the threads work allone. But if both threads > work in the same time, the program > chrashes some times with following message: > wavplay: pcm.c:5191: snd_pcm_mmap_commit: Assertion `offset == > *pcm->appl_ptr % pcm->buffer_size' failed. > Can somebody tell, what to do? > > Thanks for your help > Gabriel > ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek No, I will not fix your computer. http://thinkgeek.com/sf ^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Sound in QT-Threads 2002-07-03 6:04 ` Sound in QT-Threads Gabriel Gatzsche @ 2002-07-05 15:30 ` Takashi Iwai 0 siblings, 0 replies; 2+ messages in thread From: Takashi Iwai @ 2002-07-05 15:30 UTC (permalink / raw) To: Gabriel Gatzsche; +Cc: alsa-devel Hi, At Wed, 03 Jul 2002 08:04:17 +0200, Gabriel Gatzsche wrote: > > > Hello! > > I have made a program with two qt-threads. One for reading from > > soundcard, one for writing. > > There are no problems if the threads work allone. But if both threads > > work in the same time, the program > > chrashes some times with following message: > > wavplay: pcm.c:5191: snd_pcm_mmap_commit: Assertion `offset == > > *pcm->appl_ptr % pcm->buffer_size' failed. > > Can somebody tell, what to do? it's difficult to say many things... does it happen if you run two processes (not threads), one for playback and another for capture at the same time? anyway it'd be better to show codes to check more details. ciao, Takashi ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Bringing you mounds of caffeinated joy. http://thinkgeek.com/sf ^ permalink raw reply [flat|nested] 2+ messages in thread
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2002-07-03 6:04 ` Sound in QT-Threads Gabriel Gatzsche
2002-07-05 15:30 ` Takashi Iwai
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