[gst-devel] State change issues when asking for a RTSP stream with VLC
Javier Gálvez Guerrero
javier.galvez.guerrero at gmail.com
Fri Mar 6 16:30:52 CET 2009
I knew I could use gst-inspect to get information about specific
elements/plugins but I didn't know that it lists everything if no arguments
are provided. Thank you.
Anyway, I can't find any mpegpsdemux nor mpegtsdemux elements in the list
but I see a gstrtpssrcdemux from the bad plugins which may be related to my
issue.
Regards,
Javi
2009/3/6 Zaheer Merali <zaheerabbas at merali.org>
> On Fri, Mar 6, 2009 at 2:12 PM, Javier Gálvez Guerrero
> <javier.galvez.guerrero at gmail.com> wrote:
> > Thanks for your answer, Zaheer.
> >
> > How can I know which plugins/elements are installed in my system? I know
> > I've installed the core-, base-, ugly- and bad-plugins packages, but how
> can
> > I know which elements they provide? I have looked at the GStreamer 0.10
> > Plugins reference manual but I don't see neither mpegpsdemux nor
> mpegtsdemux
> > in the bad plugins reference manual.
>
> gst-inspect
>
> >
> > I would like to know how to find this kind of information as it may be
> > useful for my future development tasks (I need to start with the basic
> > ideas...=) )
> >
> >
> > Thank you all,
> > Javi
>
> Zaheer
> >
> >
> > 2009/3/6 Zaheer Merali <zaheerabbas at merali.org>
> >>
> >> On Fri, Mar 6, 2009 at 10:56 AM, Javier Gálvez Guerrero
> >> <javier.galvez.guerrero at gmail.com> wrote:
> >> > Hi,
> >> >
> >> > I solved it. I have installed the "bad" plugins compilation and now I
> >> > get
> >> > smooth RTP/MPEG-TS playback. I suppose it is because the mplex
> element.
> >> >
> >> > Regards,
> >> > Javi
> >>
> >> It was probably one of the mpeg demuxers mpegpsdemux or mpegtsdemux
> >> inside gst-plugins-bad that solved your problem.
> >>
> >> Zaheer
> >>
> >> >
> >> > 2009/3/5 Javier Gálvez Guerrero <javier.galvez.guerrero at gmail.com>
> >> >>
> >> >> Gstreamer MPEG demuxing is in charge of ffmpeg, isn't it? I have
> >> >> updated
> >> >> ffmpeg to the latest git version but it hasn't solved anything. I
> have
> >> >> also
> >> >> uninstalled the fluendo MPEG muxers and demuxers plugins with no
> >> >> positive
> >> >> results.
> >> >>
> >> >> On the other hand, multicast streaming (not RTSP) MPEG over UDP is
> >> >> played
> >> >> back smoothly, as local files do.
> >> >>
> >> >> Has anyone any idea about why I could play properly RTSP/RTP
> streaming
> >> >> contents before and now I get choppy playback?
> >> >>
> >> >>
> >> >> Thank you for your time and sorry for the inconvenience,
> >> >> Javi
> >> >>
> >> >>
> >> >> 2009/3/5 Javier Gálvez Guerrero <javier.galvez.guerrero at gmail.com>
> >> >>>
> >> >>> 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
> >> >>>> >
> >> >>>> >
> >> >>>> >
> >> >>>> >
> >> >>>> >
> ------------------------------------------------------------------------------
> >> >>>> > Open Source Business Conference (OSBC), March 24-25, 2009, San
> >> >>>> > Francisco, CA
> >> >>>> > -OSBC tackles the biggest issue in open source: Open Sourcing the
> >> >>>> > Enterprise
> >> >>>> > -Strategies to boost innovation and cut costs with open source
> >> >>>> > participation
> >> >>>> > -Receive a $600 discount off the registration fee with the source
> >> >>>> > code: SFAD
> >> >>>> > http://p.sf.net/sfu/XcvMzF8H
> >> >>>> > _______________________________________________ gstreamer-devel
> >> >>>> > mailing list gstreamer-devel at lists.sourceforge.net
> >> >>>> > https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
> >> >>>>
> >> >>>>
> >> >>>>
> >> >>>>
> >> >>>>
> ------------------------------------------------------------------------------
> >> >>>> Open Source Business Conference (OSBC), March 24-25, 2009, San
> >> >>>> Francisco, CA
> >> >>>> -OSBC tackles the biggest issue in open source: Open Sourcing the
> >> >>>> Enterprise
> >> >>>> -Strategies to boost innovation and cut costs with open source
> >> >>>> participation
> >> >>>> -Receive a $600 discount off the registration fee with the source
> >> >>>> code:
> >> >>>> SFAD
> >> >>>> http://p.sf.net/sfu/XcvMzF8H
> >> >>>> _______________________________________________
> >> >>>> gstreamer-devel mailing list
> >> >>>> gstreamer-devel at lists.sourceforge.net
> >> >>>> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
> >> >>>
> >> >>
> >> >
> >> >
> >> >
> >> >
> ------------------------------------------------------------------------------
> >> > Open Source Business Conference (OSBC), March 24-25, 2009, San
> >> > Francisco, CA
> >> > -OSBC tackles the biggest issue in open source: Open Sourcing the
> >> > Enterprise
> >> > -Strategies to boost innovation and cut costs with open source
> >> > participation
> >> > -Receive a $600 discount off the registration fee with the source
> code:
> >> > SFAD
> >> > http://p.sf.net/sfu/XcvMzF8H
> >> > _______________________________________________
> >> > gstreamer-devel mailing list
> >> > gstreamer-devel at lists.sourceforge.net
> >> > https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
> >> >
> >> >
> >>
> >>
> >>
> ------------------------------------------------------------------------------
> >> Open Source Business Conference (OSBC), March 24-25, 2009, San
> Francisco,
> >> CA
> >> -OSBC tackles the biggest issue in open source: Open Sourcing the
> >> Enterprise
> >> -Strategies to boost innovation and cut costs with open source
> >> participation
> >> -Receive a $600 discount off the registration fee with the source code:
> >> SFAD
> >> http://p.sf.net/sfu/XcvMzF8H
> >> _______________________________________________
> >> gstreamer-devel mailing list
> >> gstreamer-devel at lists.sourceforge.net
> >> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
> >
> >
> >
> ------------------------------------------------------------------------------
> > Open Source Business Conference (OSBC), March 24-25, 2009, San Francisco,
> CA
> > -OSBC tackles the biggest issue in open source: Open Sourcing the
> Enterprise
> > -Strategies to boost innovation and cut costs with open source
> participation
> > -Receive a $600 discount off the registration fee with the source code:
> SFAD
> > http://p.sf.net/sfu/XcvMzF8H
> > _______________________________________________
> > gstreamer-devel mailing list
> > gstreamer-devel at lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
> >
> >
>
>
> ------------------------------------------------------------------------------
> Open Source Business Conference (OSBC), March 24-25, 2009, San Francisco,
> CA
> -OSBC tackles the biggest issue in open source: Open Sourcing the
> Enterprise
> -Strategies to boost innovation and cut costs with open source
> participation
> -Receive a $600 discount off the registration fee with the source code:
> SFAD
> http://p.sf.net/sfu/XcvMzF8H
> _______________________________________________
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>
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