[gstreamer-bugs] [Bug 578506] New: Pipeline with alsasrc and alsasink cannot change state back to playing

[GStreamer (bugzilla.gnome.org)]

If you have any questions why you received this email, please see the text at
the end of this email. Replies to this email are NOT read, please see the text
at the end of this email. You can add comments to this bug at:
  http://bugzilla.gnome.org/show_bug.cgi?id=578506

  GStreamer | gst-plugins-base | Ver: git
           Summary: Pipeline with alsasrc and alsasink cannot change state
                    back to playing
           Product: GStreamer
           Version: git
          Platform: Other
        OS/Version: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-base
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: le.businessman at gmail.com
         QAContact: gstreamer-bugs at lists.sourceforge.net
     GNOME version: 2.21/2.22
   GNOME milestone: Unspecified


Please describe the problem:
I have a simple pipeline with the following elements:
alsasrc->audioconvert->capsfilter->audioconvert->alsasink

Steps to reproduce:
Recreate the above pipeline (I'll attach a testcase), and asynchronously change
the pipeline state from playing to null to playing.

Actual results:
The pipeline will go to null, but then not go back to playing. It seems to hang
on
GST_STATE_CHANGE_ASYNC

Expected results:
It would go back to playing.

Does this happen every time?
Yes.

Other information:
The same thing also happens if you substitute alsasrc/sink with
jackaudiosrc/sink


-- 
See http://bugzilla.gnome.org/page.cgi?id=email.html for more info about why you received
this email, why you can't respond via email, how to stop receiving
emails (or reduce the number you receive), and how to contact someone
if you are having problems with the system.

You can add comments to this bug at http://bugzilla.gnome.org/show_bug.cgi?id=578506.