Hi,<br><br>I am trying to select physical input (S-Video, Composite, ...)<br><br>The following code :<br><br>------------<span style="color: rgb(0, 0, 153);"><br>...<br>videodevicesrc = gst_element_factory_make(&quot;v4l2src&quot;, &quot;videodevicesrc&quot;);</span><br>
...<br><span style="color: rgb(0, 0, 153);">GstTuner *tuner = GST_TUNER (videodevicesrc);<br>...<br>------------<br></span><br>leads to:<br><br>(&lt;unknown&gt;:17146): GStreamer-CRITICAL **: gst_implements_interface_cast: assertion `gst_element_implements_interface (GST_ELEMENT (from), iface_type)&#39; failed<br>
<br><br>I know that v4l2src implements this interface and<br>I got code example from <a href="http://webcvs.freedesktop.org/gstreamer/gst-plugins-good/tests/icles/v4l2src-test.c?revision=1.1&amp;view=markup">http://webcvs.freedesktop.org/gstreamer/gst-plugins-good/tests/icles/v4l2src-test.c?revision=1.1&amp;view=markup</a><br>
<br>The installed packages is <span style="color: rgb(0, 0, 153);">gstreamer0.10-plugins-good_0.10.6-0ubuntu4_i386.deb<br><br></span>The following command lien works very fine : <span style="color: rgb(0, 0, 153);">gst-launch-0.10 v4l2src ! xvimagesink</span><br>
<span style="color: rgb(0, 0, 153);"><span style="color: rgb(255, 255, 255);"><br><span style="color: rgb(0, 0, 0);">Where am I wrong ?<br><br>Sincerely<br><br>Julien</span></span></span><br><br>