[Bug 666155] New: [teletextdec] - can not work with playbin2?

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=666155
  GStreamer | gst-plugins-bad | git

           Summary: [teletextdec] - can not work with playbin2?
    Classification: Platform
           Product: GStreamer
           Version: git
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-bad
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: bcxa.sz at gmail.com
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


I have tried to exercise teletextdec on native Linux PC. And it works fine when
try below command:
======================================================
gst-launch filesrc location=/mnt/winhost/ip_ttx.ts ! mpegtsdemux !
private/teletext ! teletextdec ! ffmpegcolorspace ! ximagesink

And I can get the teletext in the window.

But I have problem to try with playbin2 like below command:
=====================================================
gst-launch playbin2 uri=file:///mnt/winhost/ip_ttx.ts 

And it gave me error like below:
============================================
[liud at fedora14 x86-source]$ gst-launch playbin2
uri=file:///mnt/winhost/ip_ttx.ts
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
Missing element: private/teletext decoder
WARNING: from element /GstPlayBin2:playbin20/GstURIDecodeBin:uridecodebin0: No
decoder available for type 'private/teletext'.
Additional debug info:
gsturidecodebin.c(874): unknown_type_cb ():
/GstPlayBin2:playbin20/GstURIDecodeBin:uridecodebin0
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstAudioSinkClock

Then I looked at the teletext decoder code and found the RANK priorty is NONE.
So I changed to PRIMARY and let playbin2 to pickup the teletextdec element. And
after this, I got one more error as followed:
===============================================
[liud at fedora14 x86-source]$ gst-launch playbin2
uri=file:///mnt/winhost/ip_ttx.ts
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
WARNING: from element
/GstPlayBin2:playbin20/GstPlaySink:playsink0/GstBin:tbin/GstSubtitleOverlay:suboverlay:
Internal GStreamer error: negotiation problem.  Please file a bug at
http://bugzilla.gnome.org/enter_bug.cgi?product=GStreamer.
Additional debug info:
gstsubtitleoverlay.c(799): _pad_blocked_cb ():
/GstPlayBin2:playbin20/GstPlaySink:playsink0/GstBin:tbin/GstSubtitleOverlay:suboverlay:
Subtitle sink is blocked but we have no subtitle caps
WARNING: from element
/GstPlayBin2:playbin20/GstPlaySink:playsink0/GstBin:tbin/GstSubtitleOverlay:suboverlay:
Internal GStreamer error: negotiation problem.  Please file a bug at
http://bugzilla.gnome.org/enter_bug.cgi?product=GStreamer.
Additional debug info:
gstsubtitleoverlay.c(799): _pad_blocked_cb ():
/GstPlayBin2:playbin20/GstPlaySink:playsink0/GstBin:tbin/GstSubtitleOverlay:suboverlay:
Subtitle sink is blocked but we have no subtitle caps
vbi_print_page_region 'UTF-8' table=0 col=0 row=0 width=41 height=25
WARNING: from element
/GstPlayBin2:playbin20/GstPlaySink:playsink0/GstBin:vbin/GstAutoVideoSink:videosink/GstXImageSink:videosink-actual-sink-ximage:
Internal data flow problem.
Additional debug info:
gstbasesink.c(3647): gst_base_sink_chain_unlocked ():
/GstPlayBin2:playbin20/GstPlaySink:playsink0/GstBin:vbin/GstAutoVideoSink:videosink/GstXImageSink:videosink-actual-sink-ximage:
Received buffer without a new-segment. Assuming timestamps start from 0.
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstAudioSinkClock

-- 
Configure bugmail: https://bugzilla.gnome.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the QA contact for the bug.
You are the assignee for the bug.