[Bug 692953] alsa modules are silent or noisy after several hours of use

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=692953
  GStreamer | gst-plugins-base | 1.0.9

--- Comment #74 from Thomas DEBESSE <thomas.debesse at rcf.fr> 2013-08-30 09:49:03 UTC ---
Yesterday I've launched this pipeline:

gst-launch-1.0 -v alsasrc device=hw:XFi ! alsasink device=hw:Juli sync=true

from one soundcard to another, the pipeline is running since more than 16 hours

the pipeline is silent and logs are full of:

16:33:01.613912724  4360  0x9cc6c90 WARN           audiobasesink
gstaudiobasesink.c:1273:gst_audio_base_sink_skew_slaving:<alsasink0> correct
clock skew 1068582227 > 20000000
16:33:01.623932573  4360  0x9cc6c90 WARN           audiobasesink
gstaudiobasesink.c:1273:gst_audio_base_sink_skew_slaving:<alsasink0> correct
clock skew 1068584724 > 20000000
16:33:01.633891653  4360  0x9cc6c90 WARN           audiobasesink
gstaudiobasesink.c:1273:gst_audio_base_sink_skew_slaving:<alsasink0> correct
clock skew 1068586434 > 20000000
16:33:01.643870490  4360  0x9cc6c90 WARN           audiobasesink
gstaudiobasesink.c:1273:gst_audio_base_sink_skew_slaving:<alsasink0> correct
clock skew 1068587382 > 20000000
16:33:01.653871297  4360  0x9cc6c90 WARN           audiobasesink
gstaudiobasesink.c:1273:gst_audio_base_sink_skew_slaving:<alsasink0> correct
clock skew 1068587592 > 20000000

Notice the excessive value greater than 1000 000 000 while alsasink complains
from values ​​greater than only 20 000 000!

Does someone known which the 20000000 number means ?

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