On Tue, 12 Mar 2002, Markus Schoder wrote:
> Hi!
>
> I experienced crashes with aplay from alsa-*-0.9.0beta12 when playing a
> .wav file. I tracked it down to the snd_pcm_plugin_write_areas
> function in pcm/pcm_plugin.c of libasound.
>
> The result variable in the loop can get larger than size. It is
> subtracted from size but since size is unsigned it will wrap
> around to an insanely high value and either loop forever or
> eventually crash.
>
> The reason for this behaviour seems to be that slave_frames can get
> bigger than frames due to some resampling being done in the function
> snd_pcm_rate_expand in pcm/pcm_rate.c.
>
> I patched the snd_pcm_plugin_write_areas function by not allowing more
> than frames to be subtracted from size. This fixed the crash but I am
> now experiencing some garbage being played at the end of the .wav.
>
> Any ideas?
It's fixed in CVS.
Jaroslav
-----
Jaroslav Kysela <[EMAIL PROTECTED]>
Linux Kernel Sound Maintainer
ALSA Project http://www.alsa-project.org
SuSE Linux http://www.suse.com
_______________________________________________
Alsa-devel mailing list
[EMAIL PROTECTED]
https://lists.sourceforge.net/lists/listinfo/alsa-devel
