[gst-devel] State change issues when asking for a RTSP stream with VLC

[Javier Gálvez Guerrero]

Thanks for your answer, Wim.

So, Gstreamer 0.8 MPEG demuxers worked but those used in 0.10 are not
working properly?


Regards,
Javi

2009/3/5 Wim Taymans <wim.taymans at gmail.com>

> On Thu, 2009-03-05 at 10:28 +0100, Javier Gálvez Guerrero wrote:
> > Hi,
> >
> > I managed this issue by installing the UGLY plugins. However, I don't
> > know if this is the proper way to solve my issue.
> >
> > Now I can get the RTSP stream (both from VLC and Live555 RTSP servers)
> > but the video framerate is lower than the original and not stable. I
> > have checked that all RTP packets are received (sequence numbers are
> > ok) and I get neither error nor warning messages from Gstreamer, so I
> > don't know what is happening and how I could get a smooth video
> > playback in RTSP streaming (the same video played locally works
> > smoothly).
> >
> > As said before, I have these problems since I updated Gstreamer from
> > 0.8 to 0.10, so I don't know if there is any related issue with these
> > problems or if I'm missing something. Anyway, I would like anyone to
> > help me getting things working, either downgrading to 0.8 (I don't
> > know where to find this version) or managing with the current 0.10
> > version I've just installed.
> >
>
> The mpeg demuxers don't support demuxing live streams yet and screw up
> the timestamps, which makes the result rather choppy.
>
> Wim
> >
> > Thank you all,
> > Javi
> >
> >
> > 2009/3/4 Javier Gálvez Guerrero <javier.galvez.guerrero at gmail.com>
> >         Hi there,
> >
> >         I was using the Gstreamer framework (version 0.8) to get some
> >         tests. I used Gstreamer as client and VLC (0.9.4) as RTSP
> >         server and it worked smoothly. The problem has arised when
> >         updating Gstreamer to 0.10.21. When I launch "gst-launch-0.10
> >         playbin uri=rtsp://IP:PORT/content it never starts playing the
> >         media. Using VLC as a client works ok.
> >
> >         I can see with Wireshark the RTSP message exchange (PAUSE and
> >         then TEARDOWN) and I get these error messages where launching
> >         Gstreamer:
> >
> >         Estableciendo el flujo a PAUSADO ... (PAUSED)
> >         El flujo es en vivo y no necesita PRECACHEADO ... (PRECACHED)
> >         Estableciendo el flujo para REPRODUCCIÓN ... (PLAY)
> >         New clock: GstSystemClock
> >         ERROR: desde el
> >         elemento
> /GstPlayBin:playbin0/GstDecodeBin:decodebin0/ffdec_mpegvideo:ffdec_mpegvideo0:
> Internal GStreamer error: negotiation problem.  Please file a bug at
> http://bugzilla.gnome.org/enter_bug.cgi?product=GStreamer.
> >         Información adicional de depurado:
> >         gstffmpegdec.c(2339): gst_ffmpegdec_chain
> >         ():
> /GstPlayBin:playbin0/GstDecodeBin:decodebin0/ffdec_mpegvideo:ffdec_mpegvideo0:
> >         ffdec_mpegvideo: input format was not set before data start
> >         Execution ended after 887032082 ns.
> >         Estableciendo el flujo a PAUSADO ...
> >         Estableciendo pipeline a READY...
> >         Estableciendo pipeline a NULL...
> >         LIBERANDO pipeline ... (FREEING)
> >
> >
> >         I would like to know how I can solve this issue and, in case
> >         the only solution is downgrading to gstreamer 0.8, could
> >         anybody tell me where can I find it?
> >
> >         By the way, as you may have noted, I am a newbie in the
> >         Gstreamer framework, but I am quite interested in succeedin
> >         using it. Any help would be much appreciated.
> >
> >
> >         Thank you,
> >         Javi
> >
> >
> >
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