[alsa-devel] Backported sbxfi driver (UNTESTED!)
thesourcehim at gmail.com
Fri Oct 17 09:57:08 CEST 2008
Takashi Iwai пишет:
> At Thu, 16 Oct 2008 22:18:07 +0400,
> The Source wrote:
>>>> Ok. OpenAL with alsa also seem to cause problems.
>>> In both cases, check the period_size and buffer_size values (shown in
>>> the kernel message, or /proc/asound/card0/pcm0p/sub0/hw_params).
>>> And, try to aplay with these parameters, whether you get the similar
>>> % aplay -v --period-size=xxx --buffer-size=yyy foo.wav
>> I'm sorry, but any attemp to play file with ossplay results in complete
>> system hang with error:
>> unable to handle NULL ponter dereference at address
>> 0000000000000008.....(hang, no more output).
>> I tried many wav formats. So I can't get error log or period and buffer
>> sizes, sorry.
> Can anyone confirm to reproduce Oops with OSS apps (ossplay)?
> I'm wondering whether this has anything to do with the capture.
> Can you record the sound, and change the capture mixer element properly?
I checked mplayer. It uses period size 1024 instead of 4096 and 16384
buffer size (default). Sound is choppy (sound pauses is more frequent
when rate is lower).
However an attempt to play the same file with the same period and buffer
sizes with aplay results in complete system hang.
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