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 <div class="gmail_quote">2009/3/6 Zaheer Merali <<a href="mailto:zaheerabbas@merali.org">zaheerabbas@merali.org</a>> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> On Fri, Mar 6, 2009 at 2:12 PM, Javier Gálvez Guerrero <div class="im"><<a href="mailto:javier.galvez.guerrero@gmail.com">javier.galvez.guerrero@gmail.com</a>> wrote: </div><div class="im">> 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. </div>gst-inspect <div class="im"> > > 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 </div>Zaheer <div><div></div><div class="h5">> > > 2009/3/6 Zaheer Merali <<a href="mailto:zaheerabbas@merali.org">zaheerabbas@merali.org</a>> >> >> On Fri, Mar 6, 2009 at 10:56 AM, Javier Gálvez Guerrero >> <<a href="mailto:javier.galvez.guerrero@gmail.com">javier.galvez.guerrero@gmail.com</a>> 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 <<a href="mailto:javier.galvez.guerrero@gmail.com">javier.galvez.guerrero@gmail.com</a>> >> >> >> >> 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 <<a href="mailto:javier.galvez.guerrero@gmail.com">javier.galvez.guerrero@gmail.com</a>> >> >>> >> >>> 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 <<a href="mailto:wim.taymans@gmail.com">wim.taymans@gmail.com</a>> >> >>>> >> >>>> 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 <<a href="mailto:javier.galvez.guerrero@gmail.com">javier.galvez.guerrero@gmail.com</a>> >> >>>> > 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 >> >>>> > <a href="http://bugzilla.gnome.org/enter_bug.cgi?product=GStreamer" target="_blank">http://bugzilla.gnome.org/enter_bug.cgi?product=GStreamer</a>. >> >>>> > 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 >> >>>> > <a href="http://p.sf.net/sfu/XcvMzF8H" target="_blank">http://p.sf.net/sfu/XcvMzF8H</a> >> >>>> > _______________________________________________ gstreamer-devel >> >>>> > mailing list <a href="mailto:gstreamer-devel@lists.sourceforge.net">gstreamer-devel@lists.sourceforge.net</a> >> >>>> > <a href="https://lists.sourceforge.net/lists/listinfo/gstreamer-devel" target="_blank">https://lists.sourceforge.net/lists/listinfo/gstreamer-devel</a> >> >>>> >> >>>> >> >>>> >> >>>> >> >>>> ------------------------------------------------------------------------------ >> >>>> 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 >> >>>> <a href="http://p.sf.net/sfu/XcvMzF8H" target="_blank">http://p.sf.net/sfu/XcvMzF8H</a> >> >>>> _______________________________________________ >> >>>> gstreamer-devel mailing list >> >>>> <a href="mailto:gstreamer-devel@lists.sourceforge.net">gstreamer-devel@lists.sourceforge.net</a> >> >>>> <a href="https://lists.sourceforge.net/lists/listinfo/gstreamer-devel" target="_blank">https://lists.sourceforge.net/lists/listinfo/gstreamer-devel</a> >> >>> >> >> >> > >> > >> > >> > ------------------------------------------------------------------------------ >> > 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 >> > <a href="http://p.sf.net/sfu/XcvMzF8H" target="_blank">http://p.sf.net/sfu/XcvMzF8H</a> >> > _______________________________________________ >> > gstreamer-devel mailing list >> > <a href="mailto:gstreamer-devel@lists.sourceforge.net">gstreamer-devel@lists.sourceforge.net</a> >> > <a href="https://lists.sourceforge.net/lists/listinfo/gstreamer-devel" target="_blank">https://lists.sourceforge.net/lists/listinfo/gstreamer-devel</a> >> > >> > >> >> >> ------------------------------------------------------------------------------ >> 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 >> <a href="http://p.sf.net/sfu/XcvMzF8H" target="_blank">http://p.sf.net/sfu/XcvMzF8H</a> >> _______________________________________________ >> gstreamer-devel mailing list >> <a href="mailto:gstreamer-devel@lists.sourceforge.net">gstreamer-devel@lists.sourceforge.net</a> >> <a href="https://lists.sourceforge.net/lists/listinfo/gstreamer-devel" target="_blank">https://lists.sourceforge.net/lists/listinfo/gstreamer-devel</a> > > > ------------------------------------------------------------------------------ > 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 > <a href="http://p.sf.net/sfu/XcvMzF8H" target="_blank">http://p.sf.net/sfu/XcvMzF8H</a> > _______________________________________________ > gstreamer-devel mailing list > <a href="mailto:gstreamer-devel@lists.sourceforge.net">gstreamer-devel@lists.sourceforge.net</a> > <a href="https://lists.sourceforge.net/lists/listinfo/gstreamer-devel" target="_blank">https://lists.sourceforge.net/lists/listinfo/gstreamer-devel</a> > > ------------------------------------------------------------------------------ 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 <a href="http://p.sf.net/sfu/XcvMzF8H" target="_blank">http://p.sf.net/sfu/XcvMzF8H</a> _______________________________________________ gstreamer-devel mailing list <a href="mailto:gstreamer-devel@lists.sourceforge.net">gstreamer-devel@lists.sourceforge.net</a> <a href="https://lists.sourceforge.net/lists/listinfo/gstreamer-devel" target="_blank">https://lists.sourceforge.net/lists/listinfo/gstreamer-devel</a> </div></div></blockquote></div>