alsa periods in buffer (4) is bad: Invalid argument
Hello,
I'm trying to get celliax working on whitebox linux 4 (RHEL4 clone)
* All current os updates installed
* I'm using Asterisk 1.4.9
* I've got alsa 10.0.13 installed.
* on 8/24/2007: I got the source from here: svn co http://www.celliax.org:8081/svn/celliax/trunk
* chan_celliax.so compiles without errors
When I try to load the celliax module, I get the following errors:
== Registered channel type 'Celliax' (Celliax, Audio-Serial Driver)
== Parsing '/etc/asterisk/celliax.conf': Found
== Registered application 'Celliax_Directory'
== Registered application 'celliax_sendsms'
== Registered channel type 'Celliax' (Celliax, Audio-Serial Driver)
== Parsing '/etc/asterisk/celliax.conf': Found
[Aug 24 22:33:21] ERROR[29449]: chan_celliax.c:3945 alsa_open_dev: [b7f786c0][ERROR 3945 ][motoV3i ][-1, 0, 0, 0] alsa_periods_in_buffer (4) is bad: Invalid argument
[Aug 24 22:33:21] ERROR[29449]: chan_celliax.c:3792 alsa_init: [b7f786c0][ERROR 3792 ][motoV3i ][-1, 0, 0, 0] Failed opening ALSA capture device: default:0
[Aug 24 22:33:21] ERROR[29449]: chan_celliax.c:3157 mkif: [b7f786c0][ERROR 3157 ][motoV3i ][-1, 0, 0, 0] Failed initializing sound device
[Aug 24 22:33:21] ERROR[29449]: chan_celliax.c:2494 load_module: [b7f786c0][ERROR 2494 ][none ][-1,-1,-1,-1] Unable to create channel Celliax from celliax.conf category '[motoV3i]'
== Unregistered channel type 'Celliax'
Any ideas?
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Syndicate
try different values
Seems that your soundcard do not accept the config values
try other values for alsa_period_size and alsa_periods_in_buffer
on some soundcard I have found alsa_period_size=32 and alsa_periods_in_buffer=32 to work well.
Also, try to use different names for the devices, substituting plughw to default, eg:
alsa_capture_device_name=plughw:0
alsa_playback_device_name=plughw:0
If all this do not works, write here again and we'll help you further ;-)
I also had problems with these values
So, Giovanni, how about implementing a "hint" in the output log using the functions:
snd_pcm_hw_params_get_periods_min()
snd_pcm_hw_params_get_periods_max()
snd_pcm_hw_params_get_buffer_size_min()
snd_pcm_hw_params_get_buffer_size_max()
Searching the web the information that can be found is that these values are highly hardware-dependent: users will definitely have to adapt the values to what their hardware accepts, but at least the log could indicate what values ranges are valid otherwise it will be a blind shot until the correct values are chosen.
By the way, my sound card does not accept alsa_periods_in_buffer > 2.
alsa parameters hint
good idea, let's continue discussion about alsa parameters hint on the celliax-dev mailing list
Different soundcard works I
Different soundcard works
I configured celliax to use my on-board soundcard, and now the module loads
The soundcard that this failed was a Creative Labs SB Live! EMU10k1 (rev 0a)
The soundcard that works is a Intel Corporation 82801BA/BAM AC'97 Audio Controller (rev 04)