[Pkg-alsa-devel] Bug#393471: useless message about underruns

[Jan Christoph Nordholz]

Hi,

I was able to track it down...

] jcn at hejre:~$ mpg321 -q favourite.mp3 
] 
] [1]+  Stopped                 mpg321 -q favourite.mp3
] jcn at hejre:~$ fg
] mpg321 -q favourite.mp3
] ALSA: underrun, at least 0ms.
] 
] [1]+  Stopped                 mpg321 -q favourite.mp3
] jcn at hejre:~$ cd /proc/$(pidof mpg321)
] jcn at hejre:/proc/384$ cat maps
] 08048000-08050000 r-xp 00000000 21:42 976285     /usr/bin/mpg321
] [...]
] b7dc2000-b7dc5000 r-xp 00000000 21:42 1497146    /usr/lib/ao/plugins-2/libalsa09.so
] b7dc5000-b7dc6000 rwxp 00002000 21:42 1497146    /usr/lib/ao/plugins-2/libalsa09.so
] [...]
] jcn at hejre:/proc/384$ strings /usr/lib/ao/plugins-2/libalsa09.so | grep under
] ALSA: underrun, at least %dms.
] underrun recovery: snd_pcm_prepare
] jcn at hejre:/proc/384$ 

The ALSA plugin of libao2 seems to be unable to get the proper
amount of ms that output was delayed. aplay does fine:

] jcn at hejre:~$ aplay favourite.wav 
] Playing WAVE 'favourite.wav' : Unsigned 8 bit, Rate 8000 Hz, Mono
] 
] [2]+  Stopped                 aplay favourite.wav
] jcn at hejre:~$ fg
] aplay favourite.wav
] underrun!!! (at least 1088.797 ms long)
] 
] [2]+  Stopped                 aplay favourite.wav
] jcn at hejre:~$ fg
] aplay favourite.wav
] underrun!!! (at least 914.463 ms long)
] 
] [2]+  Stopped                 aplay favourite.wav
] jcn at hejre:~$ 

Reassign to libao2?


Regards,

Jan
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