Re: Latest Snapshot & PulseAudio Capture

Chris,

I did as you suggested and put in AL_PRINTs in various places.  I'm  
not at all familiar with the audio APIs for Pulse, but the parameters  
look correct in pulse_open_capture.  Most notable is that  
pulse_available_samples are zero until I open the Volume Control app.   
At that time pulse_available_samples becomes non-zero and  
pulse_capture_samples is called.  When the Volume Control app isn't  
open, pulse_available_samples will occasionally go non-zero a couple  
of timea and I can hear 'bursts' of captured audio, but it quickly  
returns to producing zero available samples.

Tom Porter
[email protected]



On Dec 30, 2009, at 3:52 PM, Chris Robinson wrote:

> On Wednesday 30 December 2009 11:41:53 am Tom Porter wrote:
>> Hi Chris,
>>
>> I just pulled and built the latest OpenAL Soft source.  I can't seem
>> to get capture to function with Second Life in Linux.  I did  
>> discover,
>> quite by accident, that while running Second Life and opening Gnome's
>> Volume Control app, capture begins working.  I don't see any errors  
>> in
>> any of the logs that I am running for Second Life.  I have PulseAudio
>> 0.9.21 and kernel 2.6.31.9.   Is there anything I can provide to help
>> diagnose this issue?
>
> Hi.
>
> It'll probably be helpful to add AL_PRINT statements in  
> pulse_open_capture to
> print out the parameters, in pulse_available_samples print out the  
> number of
> samples being reported, and pulse_start_capture, pulse_stop_capture,  
> and
> pulse_capture_samples to see if they're ever called. Then you can  
> filter the
> output on lines that have "AL lib" to see what's going on.
>
> The capture sample program in Creative's SDK seems to work using  
> PulseAudio
> 0.9.21 for me, so the only thing I can think of that may be wrong is  
> it's
> using values that don't work well with Pulse (and yes, Pulse's  
> capture code
> was changed recently, to allow reading directly from Pulse's buffers  
> as much
> as possible for fewer intermediary steps).
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