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    On 07/10/11 23:12, Tom wrote:
    <blockquote
cite="mid:CAOzS69oeZ2KVfUTZay-ZW7kFUWXkR8AhZDOq3vp40HJE6t62vA@mail.gmail.com"
      type="cite">Hi Andrey,<br>
      <br>
      I followed your example and it works for me.<br>
      I added <span style="color: rgb(255, 0, 0);">gst_element_set_state(pipe,GST_STATE_NULL);</span>
      before changing framerate, and also added <span style="color:
        rgb(255, 0, 0);">gst_element_set_state(pipe,GST_STATE_PLAYING);</span>
      after changing framerate. This changed the framerate.<br>
      <br>
      But another problem came by: The video window closed and re-opened
      at the moment of framerate changing.<br>
    </blockquote>
    You will want to manage your own window in the long-run and now rely
    on gst's fallback window. Have a look at the gstxoverlay docs.<br>
    <br>
    Stefan<br>
    <br>
    <blockquote
cite="mid:CAOzS69oeZ2KVfUTZay-ZW7kFUWXkR8AhZDOq3vp40HJE6t62vA@mail.gmail.com"
      type="cite">I want to make the window stay there and ONLY the
      videoframe change.<br>
      <br>
      Is there some way to make the video window never close while
      changing framerate?<br>
      Thanks!<br>
      <br>
      Tom<br>
      <br>
      <br>
      <br>
      <div class="gmail_quote">On Sun, Jul 10, 2011 at 4:21 AM, Andrey
        Nechypurenko <span dir="ltr">&lt;<a moz-do-not-send="true"
            href="mailto:andreynech@googlemail.com">andreynech@googlemail.com</a>&gt;</span>
        wrote:<br>
        <blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt
          0.8ex; border-left: 1px solid rgb(204, 204, 204);
          padding-left: 1ex;">Hi Tom,<br>
          <div class="im"><br>
            &gt; existed...<a moz-do-not-send="true"
href="http://gitorious.org/veter/veter/blobs/master/src/vehicle/VideoSenderThread.cpp#line264"
              target="_blank">http://gitorious.org/veter/veter/blobs/master/src/vehicle/VideoSenderThread.cpp#line264</a><br>
            &gt; Could you please give me another example about
            adjusting the caps filter?<br>
            <br>
          </div>
          Last couple of months I was working on the project rather
          active and<br>
          re-organize the source tree quite a bit.<br>
          Please try the following link:<br>
          <a moz-do-not-send="true"
href="https://www.gitorious.org/veter/vehicle/blobs/master/src/VideoSenderThread.cpp#line253"
            target="_blank">https://www.gitorious.org/veter/vehicle/blobs/master/src/VideoSenderThread.cpp#line253</a><br>
          <br>
          Regards,<br>
          Andrey.<br>
          ----------------------------------------<br>
          Blog: <a moz-do-not-send="true"
            href="http://veter-project.blogspot.com" target="_blank">http://veter-project.blogspot.com</a><br>
          <div>
            <div class="h5"><br>
              <br>
              &gt; Thank you very much!<br>
              &gt;<br>
              &gt; Tom<br>
              &gt;<br>
              &gt; On Thu, Mar 10, 2011 at 2:58 AM, Andrey Nechypurenko<br>
              &gt; &lt;<a moz-do-not-send="true"
                href="mailto:andreynech@googlemail.com">andreynech@googlemail.com</a>&gt;
              wrote:<br>
              &gt;&gt;<br>
              &gt;&gt; Hi Tom,<br>
              &gt;&gt;<br>
              &gt;&gt; &gt; I use<br>
              &gt;&gt; &gt; gst-launch filesrc "location=video/1.MPG" !
              decodebin ! videorate !<br>
              &gt;&gt; &gt; video/x-raw-yuv,
              width=640,height=480,framerate=25/1 ! ffmpegcolorspace<br>
              &gt;&gt; &gt; !<br>
              &gt;&gt; &gt; jpegenc ! multipartmux ! tcpserversink
              host=192.168.2.1 port=$portNumber<br>
              &gt;&gt; &gt; to stream a video and can change the video
              frame rate in this way.<br>
              &gt;&gt; &gt; But in this way the frame rate is fixed
              (i.e., framerate=25/1 here).<br>
              &gt;&gt; &gt;<br>
              &gt;&gt; &gt; I want to change the framerate in REALTIME
              when video is PLAYING  ---<br>
              &gt;&gt; &gt; during the streaming of this video, I can
              change the framerate anytime I<br>
              &gt;&gt; &gt; want.<br>
              &gt;&gt;<br>
              &gt;&gt; Then you need to modify the pipeline from your
              application. In<br>
              &gt;&gt; particular, you need to adjust the caps filter.
              Here you can find an<br>
              &gt;&gt; example how to do it:<br>
              &gt;&gt;<br>
              &gt;&gt; <a moz-do-not-send="true"
href="http://gitorious.org/veter/veter/blobs/master/src/vehicle/VideoSenderThread.cpp#line264"
                target="_blank">http://gitorious.org/veter/veter/blobs/master/src/vehicle/VideoSenderThread.cpp#line264</a><br>
              &gt;&gt; It changes width and height property of the named
              (qos-caps) caps<br>
              &gt;&gt; filter by pausing the videoscale element in front
              of it, updating<br>
              &gt;&gt; width and height properties and then un-pausing
              the videoscale. So in<br>
              &gt;&gt; your case you can update the framerate property.
              However, as Kapil<br>
              &gt;&gt; pointed out to work properly, the downstream
              elements should be able<br>
              &gt;&gt; to re-negotiate the new format.<br>
              &gt;&gt;<br>
              &gt;&gt; HTH,<br>
              &gt;&gt; Andrey.<br>
              &gt;&gt; _______________________________________________<br>
              &gt;&gt; gstreamer-devel mailing list<br>
              &gt;&gt; <a moz-do-not-send="true"
                href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a><br>
              &gt;&gt; <a moz-do-not-send="true"
                href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel"
                target="_blank">http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a><br>
              &gt;<br>
              &gt;<br>
              &gt; _______________________________________________<br>
              &gt; gstreamer-devel mailing list<br>
              &gt; <a moz-do-not-send="true"
                href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a><br>
              &gt; <a moz-do-not-send="true"
                href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel"
                target="_blank">http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a><br>
              &gt;<br>
              &gt;<br>
              _______________________________________________<br>
              gstreamer-devel mailing list<br>
              <a moz-do-not-send="true"
                href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a><br>
              <a moz-do-not-send="true"
                href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel"
                target="_blank">http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a><br>
            </div>
          </div>
        </blockquote>
      </div>
      <br>
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gstreamer-devel mailing list
<a class="moz-txt-link-abbreviated" href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a>
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</pre>
    </blockquote>
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