[Bug 690146] New: Cannot transit to PLAY state with a new sink bin that composed of two sink elements

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=690146
  GStreamer | gstreamer (core) | 1.0.3

           Summary: Cannot transit to PLAY state with a new sink bin that
                    composed of two sink elements
    Classification: Platform
           Product: GStreamer
           Version: 1.0.3
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gstreamer (core)
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: pklai at aldtech.com
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


Created an attachment (id=231451)
 --> (https://bugzilla.gnome.org/attachment.cgi?id=231451)
Create a sink bin

I create a new sink bin that composes of an autoaudiosink element and an
appsink elemnet. The appsink is used for capturing raw PCM data. The newly
create sink bin is attached to the playbin's "audio-sink" path. It works fine
on gstreamer-0.10. However, when I port it to gstreamer-1.0, it just hang
without transit to PLAY state. When only one of the sink element (that is, only
use one of the "tee" output) is used, it works and can enter PLAY state:- for
appsink, it can get new sample; for autoaudiosink, it can output sound. I don't
know what is going wrong, can you give me a hand?

Attached is the code that I used to create the sink bin.

Regards,
Colman

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