[gstreamer-bugs] [Bug 420915] New: Playback problem with two alsasinks

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gstreamer (core) | Ver: 0.10.11

           Summary: Playback problem with two alsasinks
           Product: GStreamer
           Version: 0.10.11
          Platform: Other
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gstreamer (core)
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: mathis.hofer at dreamlab.net
         QAContact: gstreamer-bugs at lists.sourceforge.net
     GNOME version: Unspecified
   GNOME milestone: Unspecified


Having a pipeline like this:

src1 -+-> adder -> tee +-> sink1
src2 -´                `-> sink2

On the second output there is always a crackling noise -- no matter which
soundcard is choosen as second. The first output is fine.

I first thought it could have something to do with the adder/tee combination,
but here is a simple testcase for the commandline, without adder and tee:
gst-launch-0.10 audiotestsrc ! audioconvert ! alsasink device=hw:0 \
audiotestsrc ! audioconvert ! alsasink device=hw:1

You may exchange the device numbers, it's always the first defined device that
crackles.

When sending it to two wav files, there is no problem:
gst-launch-0.10 audiotestsrc ! audioconvert ! wavenc ! filesink location=1.wav
\
audiotestsrc ! audioconvert ! wavenc ! filesink location=2.wav


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