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

Mon Sep 9 05:26:46 PDT 2013

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

--- Comment #116 from Thomas DEBESSE <thomas.debesse at rcf.fr> 2013-09-09 12:26:41 UTC ---
Two instance of this pipeline:

gst-launch-1.0 -v jackaudiosrc client-name=queue1 name=in connect=none !
capsfilter caps="audio/x-raw, format=F32LE, rate=48000, channels=1" !
jackaudiosink client-name=queue1 name=out connect=none sync=true

are already running.

The 1rst is running since 5 days in a jack patchbay (with dummy interface) and
the 2nd is running since 4 days in a jackd (with alsa interface).

Both are ok. There is some log output, but pipelines are running fine, no
noise, no silence.

log from gstreamer connected to jackd with dummy interface:

101:46:14.700129470  5766  0x943fe30 WARN            audiobasesrc
gstaudiobasesrc.c:843:gst_audio_base_src_create:<in> create DISCONT of 164864
samples at sample 17585976320
101:46:14.700178271  5766  0x943fe30 WARN            audiobasesrc
gstaudiobasesrc.c:848:gst_audio_base_src_create:<in> warning: Can't record
audio fast enough
101:46:14.700199527  5766  0x943fe30 WARN            audiobasesrc
gstaudiobasesrc.c:848:gst_audio_base_src_create:<in> warning: Dropped 164864
samples. This is most likely because downstream can't keep up and is consuming
samples too slowly.
WARNING: from element /GstPipeline:pipeline0/GstJackAudioSrc:in: Can't record
audio fast enough
Additional debug info:
gstaudiobasesrc.c(848): gst_audio_base_src_create ():
/GstPipeline:pipeline0/GstJackAudioSrc:in:
Dropped 164864 samples. This is most likely because downstream can't keep up
and is consuming samples too slowly.

log for gstreamer connected to jackd with alsa interface:
118:25:35.542284376  8527  0x8062e30 WARN           audiobasesink
gstaudiobasesink.c:1273:gst_audio_base_sink_skew_slaving:<out> correct clock
skew 21088498 > 20000000
118:25:41.729188668  8527  0x8062e30 WARN           audiobasesink
gstaudiobasesink.c:1295:gst_audio_base_sink_skew_slaving:<out> correct clock
skew -20059482 < -20000000

In both two usecases, the sound is fine.

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