[gstreamer-bugs] [Bug 575720] New: on video-cd playbin2 playback attempts, video stream is sometimes found, sometimes not

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | don't know | Ver: git
           Summary: on video-cd playbin2 playback attempts, video stream is
                    sometimes found, sometimes not
           Product: GStreamer
           Version: git
          Platform: Other
        OS/Version: All
            Status: UNCONFIRMED
          Severity: major
          Priority: Normal
         Component: don't know
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: andreas.frisch at multimedia-labs.de
         QAContact: gstreamer-bugs at lists.sourceforge.net
     GNOME version: Unspecified
   GNOME milestone: Unspecified


Please describe the problem:
two out of six tries, a playbin2 vcd playback worked with the video showing,
the other 4 times, i got audio only

Steps to reproduce:
gst-launch playbin2 uri=vcd://

Actual results:
root at dm8000:~# gst-launch playbin2 uri=vcd://
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
WARNING: from element /GstPlayBin2:playbin20/GstPlaySink:playsink0: No volume
control found
Additional debug info:
gstplaysink.c(1224): gen_audio_chain ():
/GstPlayBin2:playbin20/GstPlaySink:playsink0:
Volume/mute is not available
MIMETYPE audio/mpeg version 1 layer 2
MIMETYPE video/mpeg1 -> VIDEO_SET_STREAMTYPE, 6
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
VIDEO_EVENT 1
VIDEO_EVENT 2
Caught interrupt -- handling interrupt.
Interrupt: Stopping pipeline ...
Execution ended after 15819044000 ns.
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
FREEING pipeline ...
root at dm8000:~# gst-launch playbin2 uri=vcd://
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
WARNING: from element /GstPlayBin2:playbin20/GstPlaySink:playsink0: No volume
control found
Additional debug info:
gstplaysink.c(1224): gen_audio_chain ():
/GstPlayBin2:playbin20/GstPlaySink:playsink0:
Volume/mute is not available
MIMETYPE audio/mpeg version 1 layer 2
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
Caught interrupt -- handling interrupt.
Interrupt: Stopping pipeline ...
Execution ended after 30799155000 ns.
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
FREEING pipeline ...
root at dm8000:~# gst-launch playbin2 uri=vcd://
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
WARNING: from element /GstPlayBin2:playbin20/GstPlaySink:playsink0: No volume
control found
Additional debug info:
gstplaysink.c(1224): gen_audio_chain ():
/GstPlayBin2:playbin20/GstPlaySink:playsink0:
Volume/mute is not available
MIMETYPE audio/mpeg version 1 layer 2
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
Caught interrupt -- handling interrupt.
Interrupt: Stopping pipeline ...
Execution ended after 3933144000 ns.
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
FREEING pipeline ...
root at dm8000:~# gst-launch playbin2 uri=vcd://
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
WARNING: from element /GstPlayBin2:playbin20/GstPlaySink:playsink0: No volume
control found
Additional debug info:
gstplaysink.c(1224): gen_audio_chain ():
/GstPlayBin2:playbin20/GstPlaySink:playsink0:
Volume/mute is not available
MIMETYPE audio/mpeg version 1 layer 2
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
Caught interrupt -- handling interrupt.
Interrupt: Stopping pipeline ...
Execution ended after 1373187000 ns.
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
FREEING pipeline ...
root at dm8000:~# gst-launch playbin2 uri=vcd://
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
WARNING: from element /GstPlayBin2:playbin20/GstPlaySink:playsink0: No volume
control found
Additional debug info:
gstplaysink.c(1224): gen_audio_chain ():
/GstPlayBin2:playbin20/GstPlaySink:playsink0:
Volume/mute is not available
MIMETYPE audio/mpeg version 1 layer 2
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
Caught interrupt -- handling interrupt.
Interrupt: Stopping pipeline ...
Execution ended after 664822000 ns.
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
FREEING pipeline ...
root at dm8000:~# gst-launch playbin2 uri=vcd://
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
WARNING: from element /GstPlayBin2:playbin20/GstPlaySink:playsink0: No volume
control found
Additional debug info:
gstplaysink.c(1224): gen_audio_chain ():
/GstPlayBin2:playbin20/GstPlaySink:playsink0:
Volume/mute is not available
MIMETYPE video/mpeg1 -> VIDEO_SET_STREAMTYPE, 6
MIMETYPE audio/mpeg version 1 layer 2
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
Caught interrupt -- handling interrupt.
Interrupt: Stopping pipeline ...
Execution ended after 15882466000 ns.
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
FREEING pipeline ...
root at dm8000:~#


Expected results:
always find the video stream

Does this happen every time?
it fails ~2/3 of the times (statistically unascertained)

Other information:
according to wim, might be caused by a race condition cf.
http://bugzilla.gnome.org/show_bug.cgi?id=575588


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