<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html; charset=ISO-8859-1" http-equiv="Content-Type"> </head> <body bgcolor="#ffffff" text="#000000"> On 04/05/2012 06:55 AM, Garth Tissington wrote: <blockquote cite="mid:CAHZJNYWWUJ4UaLJSBSt7syc-Hn-Z9jN+dmwc6yy7mNarJkpYhw@mail.gmail.com" type="cite"> <div dir="ltr"><font>Hello,</font> <div><font><br> </font></div> <div><font>I've looked through all the references I can find related to output-selector - including output-selector-tests.c.  I still cannot get it to work.</font></div> <div><font><br> </font></div> <div><font>I'm using this pipline</font></div> <div><font><br> </font></div> <div><b id="internal-source-marker_0.8081336705945432" style="font-family: 'Times New Roman'; font-size: medium;"><span style="font-size: 15px; font-family: Arial; font-weight: normal; vertical-align: baseline; white-space: pre-wrap;">videotestsrc i</span><span style="font-size: 15px; font-family: Arial; font-weight: normal; vertical-align: baseline; white-space: pre-wrap;">s-live=true num-buffers=30 !</span></b></div> <div><b style="font-family: 'Times New Roman'; font-size: medium;"><span style="font-size: 15px; font-family: Arial; font-weight: normal; vertical-align: baseline; white-space: pre-wrap;"> ffmpegcolorspace !</span></b></div> <div><b style="font-family: 'Times New Roman'; font-size: medium;"><span style="font-size: 15px; font-family: Arial; font-weight: normal; vertical-align: baseline; white-space: pre-wrap;"> timeoverlay !</span></b></div> <div> <b style="font-family: 'Times New Roman'; font-size: medium;"><span style="font-size: 15px; font-family: Arial; font-weight: normal; vertical-align: baseline; white-space: pre-wrap;"> ffmpegcolorspace !</span><br> <span style="font-size: 15px; font-family: Arial; font-weight: normal; vertical-align: baseline; white-space: pre-wrap;"> output-selector name=os </span></b></div> <div><b style="font-family: 'Times New Roman'; font-size: medium;"><span style="font-size: 15px; font-family: Arial; font-weight: normal; vertical-align: baseline; white-space: pre-wrap;"> os. ! queue ! ffmpegcolorspace ! autovideosink </span></b></div> <div><b style="font-family: 'Times New Roman'; font-size: medium;"><span style="font-size: 15px; font-family: Arial; font-weight: normal; vertical-align: baseline; white-space: pre-wrap;"> os.</span></b><b style="font-family: 'Times New Roman'; font-size: medium;"><span style="font-size: 15px; font-family: Arial; font-weight: normal; vertical-align: baseline; white-space: pre-wrap;"> ! qu</span></b><span style="font-family: Arial; font-size: 15px; white-space: pre-wrap;">eue ! ffmpegcolorspace ! autovideosink</span></div> <div><font><br> </font></div> <div><br> </div> <div><br> </div> <div>after the pipeline is assembled I issue </div> <div><br> </div> <div><br> </div> <div> <pre style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 13px; background-color: rgb(255, 255, 255);"><code>g_object_get (G_OBJECT (sel), "active-pad", &srcpad1, NULL);</code></pre> <pre style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 13px; background-color: rgb(255, 255, 255);"><code> </code></pre> <pre style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 13px; background-color: rgb(255, 255, 255);"><code>and</code></pre> <pre style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 13px; background-color: rgb(255, 255, 255);"> </pre> <pre style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 13px; background-color: rgb(255, 255, 255);"><code></code><pre style="padding: 0px; margin-top: 0px; margin-bottom: 0px;"><code>gst_element_set_state (pipeline, GST_STATE_PLAYING);</code></pre> </pre> </div> <div><font><br> </font></div> <div><font>Everything works fine if I take the output selector out.  However, with the output-selector there one videosink is displayed but the video is not updates.  just a static snap shot.  After num-buffers=30 expires the pipeline end. and the application closes normally.  So, the clock appears to be running, one frame got through to the sink but no more.</font></div> </div> </blockquote> My gut feeling is that the sinks wait for prereoll buffers, which they should not as you use a livesrc, could you <br> 1.) try that with a v4l2src<br> 2.) try sync=false on the sinks?<br> This is just to narrow it down. Also run your app with GST_DEBUG="*:2" to check if gstreamer posts some warnings.<br> <br> Stefan<br> <blockquote cite="mid:CAHZJNYWWUJ4UaLJSBSt7syc-Hn-Z9jN+dmwc6yy7mNarJkpYhw@mail.gmail.com" type="cite"> <div dir="ltr"> <div><font><br> </font></div> <div>Interestingly<font> if I change num-buffers to 90 then the program hangs and does not exit after 3 seconds as expected.  Does this mean the queue is full?</font></div> <div><font><br> </font></div> <div><font>Any ideas?</font></div> <div><font><br> </font></div> <div><font>Anyone know a real world example where output-selector is being used. </font></div> <div><font><br> </font></div> <div><font>Thanks,</font></div> <div><font><br> </font></div> <div>Garth Tissington <div> <div>250 891 4797</div> <div>---</div> <div> <div><br> </div> <div>Given sufficient thrust pigs fly just fine.</div> </div> </div> <br> </div> </div> <pre wrap=""> <fieldset class="mimeAttachmentHeader"></fieldset> _______________________________________________ gstreamer-devel mailing list <a class="moz-txt-link-abbreviated" href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a> <a class="moz-txt-link-freetext" href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel">http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> </pre> </blockquote> <br> </body> </html>