que estas tratando de hacer? <div class="gmail_quote">2009/1/4 Andres Colubri <<a href="mailto:andres.colubri@gmail.com">andres.colubri@gmail.com</a>> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Hi, I've been struggling for a while with the appsrc element, and I wonder if anyone has any ideas about this. Basically, I'm trying to capture the contents of the screen into a video file. I'm not sure how to construct the pipeline to do it. I know that it has to start with an appsrc and end at a filesink, but I don't know how to initialize the appsrc (caps, max-bytes, etc) and what other intermediate elements are needed (encoders, demuxers). I looked at the examples that come with the source of appsrc, but these are for different scenarios (reading data from a file, streaming). Any help will be greatly appreciated. Thanks, Andres <div><div></div><div class="Wj3C7c"> Jure Zitnik wrote: > Hi Andres, > The appsrc and appsink are not part of the binary gstreamer-plugins-bad > package on ubuntu 8.10 (reasoning is that they "still randomly change > API and ABI" :-) > But you can always build them from source: > apt-get source gstreamer0.10-plugins-bad > cd gst-plugins-bad0.10-0.10.5 (you might need to cange the version here) > ./configure > make > > After successful build, you can copy required shared libraries manually > (if you just need appsrc/appsink) as follows: > cp gst/app/.libs/libgstapp.so /usr/lib/gstreamer-0.10/ > cp gst-libs/gst/app/.libs/libgstapp-0.10.so.0.0.0  /usr/local/lib > You might need to create additional symbolic links in /usr/local/lib > (both linking to libgstapp-0.10.so.0.0.0) : libgstapp-0.10.so.0 and > <a href="http://libgstapp-0.10.so" target="_blank">libgstapp-0.10.so</a> > > Now use gst-inspect to see if everything works fine... > > Jure > > Andres Colubri wrote: > >> Hello, >> >> I have tried to use appsrc, but for some reason it doesn't seem to be >> recognized (I'm using gst-plugins-bad 0.10.8 on ubuntu 0.8.10) by >> gstreamer. For example, when I run the appsrc_ex example, I get an >> assertion error right after >> app->src = gst_element_factory_make("appsrc", NULL); >> so seems that app->src is null >> >> Also, gst-inspect doesn't find neither appsrc nor appsink. >> >> Thanks >> Andres >> >> Wim Taymans wrote: >> >> >>> On Wed, 2008-07-30 at 12:03 +0200, David SIORPAES wrote: >>> >>> >>> >>>> Hello, >>>> >>>> I would like to exchange buffers which are allocated and managed by an >>>> application of mine to and from a GStreamer pipeline. >>>> >>>> By reading the documentation it looks like the appsrc/appsink are the >>>> solution for me, but I am also reading here >>>> <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/manual/html/section-data-spoof.html" target="_blank">http://gstreamer.freedesktop.org/data/doc/gstreamer/head/manual/html/section-data-spoof.html</a> >>>> that >>>> >>>> "New API is being developed at the moment to make data insertion and >>>> extraction less painful for applications. It can be found as GstAppSrc >>>> and GstAppSink in the gst-plugins-bad module. At the time of writing >>>> (October 2007), this API is not quite stable and ready yet, even though >>>> it may work fine for your purposes." >>>> >>>> So, may I ask whether it is safe to use such elements or not ? Or are >>>> there alternative solutions ? >>>> >>>> >>>> >>> The versionsof appsink/appsrc in the latest release of gst-plugins-bad >>> are full-featured and ready for consumption. See >>> <a href="http://webcvs.freedesktop.org/gstreamer/gst-plugins-bad/examples/app/" target="_blank">http://webcvs.freedesktop.org/gstreamer/gst-plugins-bad/examples/app/</a> >>> for a whole bunch of examples of different use cases. >>> >>> Wim >>> >>> >>> >>>> Thanks, >>>> >>>> David S. >>>> >>>> >>>> >>>> >>>> ------------------------------------------------------------------------- >>>> This SF.Net email is sponsored by the Moblin Your Move Developer's challenge >>>> Build the coolest Linux based applications with Moblin SDK & win great prizes >>>> Grand prize is a trip for two to an Open Source event anywhere in the world >>>> <a href="http://moblin-contest.org/redirect.php?banner_id=100&url=/" target="_blank">http://moblin-contest.org/redirect.php?banner_id=100&url=/</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> >>>> >>>> >>>> >>> ------------------------------------------------------------------------- >>> This SF.Net email is sponsored by the Moblin Your Move Developer's challenge >>> Build the coolest Linux based applications with Moblin SDK & win great prizes >>> Grand prize is a trip for two to an Open Source event anywhere in the world >>> <a href="http://moblin-contest.org/redirect.php?banner_id=100&url=/" target="_blank">http://moblin-contest.org/redirect.php?banner_id=100&url=/</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> >>> >>> >>> >>> >> ------------------------------------------------------------------------------ >> SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. >> The future of the web can't happen without you.  Join us at MIX09 to help >> pave the way to the Next Web now. Learn more and register at >> <a href="http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/" target="_blank">http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/</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> >> >> > > > ------------------------------------------------------------------------------ > SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. > The future of the web can't happen without you.  Join us at MIX09 to help > pave the way to the Next Web now. 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