GST_TYPE_ELEMENT， that means the "video-sink" is a GstElement, actually it should be a GstElement pointer and the default value is NULL.
You need to create the videosink element externally, and set the pointer to this property. You can refer totem sourcecode. Zhao Liang -----Original Message----- From: Zhao, Halley [mailto:halley.z...@intel.com] Sent: Thursday, February 26, 2009 11:08 AM To: Zhao Liang-E3423C; Discussion of the development of GStreamer; Michael Smith Cc: gstreamer-embedded@lists.sourceforge.net Subject: RE: [gst-embedded] [gst-devel] can playbin handle the sinkwithdecoding functions? video-sink is GstElement? But I saw the following codes: gst_play_bin_class_init (GstPlayBinClass * klass) { ... g_object_class_install_property (gobject_klass, ARG_VIDEO_SINK, g_param_spec_object ("video-sink", "Video Sink", "the video output element to use (NULL = default sink)", GST_TYPE_ELEMENT, G_PARAM_READWRITE)); ... } >-----Original Message----- >From: Zhao Liang-E3423C [mailto:e34...@motorola.com] >Sent: 2009年2月24日 10:56 >To: Discussion of the development of GStreamer; Michael Smith >Cc: gstreamer-embedded@lists.sourceforge.net >Subject: Re: [gst-embedded] [gst-devel] can playbin handle the sinkwith >decoding functions? > >The type of Video-sink is GstElement, not string. > >-----Original Message----- >From: Zhao, Halley [mailto:halley.z...@intel.com] >Sent: Tuesday, February 24, 2009 10:46 AM >To: Discussion of the development of GStreamer; Michael Smith >Cc: gstreamer-embedded@lists.sourceforge.net >Subject: Re: [gst-devel] [gst-embedded] can playbin handle the sinkwith >decoding functions? > > My gst version is 0.10.18 (Ubuntu hardy). > I saw that playbin has the property of "video-sink", but my try fails: > gst-launch playbin -v -v uri=file:///home/halley/media/video/test.avi >video-sink=xvimagesink > The error message is: > WARNING: erroneous pipeline: could not set property "video-sink" in >element "playbin10" to "xvimagesink" > > Even when I try to use playbin2 and fakesink, it always give the same >error. > > Where is my problem, thanks. > > >-----Original Message----- > >From: Michael Smith [mailto:msm...@xiph.org] > >Sent: 2009年2月21日 12:31 > >To: Liang Zhao > >Cc: gstreamer-embedded@lists.sourceforge.net; > >gstreamer-de...@lists.sourceforge.net > >Subject: Re: [gst-devel] [gst-embedded] can playbin handle the sink >with > >decoding functions? > > > >On Fri, Feb 20, 2009 at 6:03 PM, Liang Zhao <liangzhao....@gmail.com> >wrote: > >> Hi Mke, > >> > >> Thank you. > >> > >> So the only way is to use playbin2? what is the difference on >intefaces, > >> properties and signals between playbin2 and playbin? > >> I find most of them are same. > > > >The only sensible approach (assuming you want to reuse existing code, > >rather than writing something from scratch yourself) is to switch to > >playbin2. > > > >The documentation can help you with the differences - you're right, > >most things are similar. > > > >Mike > > > >>---------------------------------------------------------------------- >- > >------- > >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-de...@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-de...@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-embedded mailing list >Gstreamer-embedded@lists.sourceforge.net >https://lists.sourceforge.net/lists/listinfo/gstreamer-embedded ------------------------------------------------------------------------------ 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-embedded mailing list Gstreamer-embedded@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gstreamer-embedded
