On Mon, 25 Jun 2018 15:43:15 +0200, Harald Schuster wrote:
Hi The codec is the TI tlv320aic3x and the buffersize is set to 64 and the periodsize is set to 32 in the asound.conf. We use the pjProject for the audioprocessing and the internal period time is 4ms and the sample rate is 8000 Hz. The second codec is a USB codec which has no problems. Our scenario is that a incoming VOIP call is connected to the both codec (I2s and USB) and the USB codec starts the playback without any problems and the tlv320 sometimes works but when a underrun accours it crash!
Is it really so hardware-specific problem?
And, did you follow the recent development / fixes if it's about dshare plugin? There have been lots of changes.
I'm not asking about updating the kernels. The question is rather about alsa-lib.
Takashi
best regards Harald
Zitat von Takashi Iwai tiwai@suse.de:
On Mon, 25 Jun 2018 11:59:02 +0200, Harald Schuster wrote:
Hi We are not able to update our system. We are using USB codecs which are working fine but they are using the snd_pcm_hw_prepare function. The Problem only exists for the I2S codec in our system. When i changed the buffer size in the asound.conf for the codec the problem allready exists but it arise not so often because there is not so often a underrun. Is there any hint where i could lock for the problem?!
Well, with that little information, it's hard to advice anything...
Takashi
br Harald
Zitat von Takashi Iwai tiwai@suse.de:
On Fri, 22 Jun 2018 20:36:12 +0200, Harald Schuster wrote:
Zitat von Takashi Iwai tiwai@suse.de:
On Fri, 22 Jun 2018 15:29:21 +0200, Harald Schuster wrote: > > I found out that an underrun occours and so the pcm_prepare function > for pcm_direct is called and then pcm_start_dshare is called. Both > functions returns without any error but the playback path is blocked > in the snd_pcm_wait_nocheck function. I read that there was an similar > problem before in the group but i didn't found any solution. Is this a > problem in the driver and how can i go forward to fix it. The codec is > a tlv320aic3x-audio. Thanks for your help.
Does this happen with the very latest alsa-lib git version? Just to be sure.
Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
Hi We are using k4.1.15-6QP+ga2066af.
I'm asking the alsa-lib, not kernel.
And 4.1.x is very old... Please check either 4.17.x or latest Linus tree whether the problem persists, too.
Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
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