Hi, Is it about aspect ratio ? (I do not think so but just to be sure) Well, why not doing this: - retrieve the native width & height from negociated caps just before the xvimagesink (using gstreamer api so) - set your QWidget (more espcially you should use a QFrame) to this size - put your widget anywhere inside a kind of main widget. And so you would be able to control the way the video is streched of not, just by choicing by your self the size of the QFrame, and the behaviour of the QFrame inside its parent widget. Julien <div class="gmail_quote">2010/1/22 Debsu <<a href="mailto:debojyoti.pal@wipro.com">debojyoti.pal@wipro.com</a>> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> <div> Hi Giles, Ok, no problem. By default setting, playbin can rescale the video to fit the window, but it creates the stretching effect which I don’t want. Anyway, thanks for your help. Regards, Debojyoti <div> <div class="MsoNormal" style="text-align: center;" align="center"> <hr align="center" size="2" width="100%"> </div> From: Giles Atkinson [via GStreamer-devel] [mailto:<a href="http://n4.nabble.com/user/SendEmail.jtp?type=node&node=1099898&i=0" rel="nofollow" target="_blank">[hidden email]</a>] Sent: Friday, January 22, 2010 3:15 PM To: Debojyoti Pal (WT01 - PES-Mobile-Auto-CE Practice)<div class="im"> Subject: Re: [gst-devel] How to set window height & width using Playbin</div> </div> Deb, <div class="im"> I am afraid your questions go beyond my knowledge. I have developed an application using playbin, but we are happy with the default behaviour. We find it works well to control width and height by changing the size of the output window directly with XConfigureWindow(). Playbin then rescales the video to fit the window. Giles -----Original Message----- </div><div class="im"> From: Debsu [mailto:<a href="http://n4.nabble.com/user/SendEmail.jtp?type=node&node=1099895&i=0" rel="nofollow" link="external" target="_blank">[hidden email]</a>] Sent: 22 January 2010 07:40 </div><div class="im"> To: <a href="http://n4.nabble.com/user/SendEmail.jtp?type=node&node=1099895&i=1" rel="nofollow" link="external" target="_blank">[hidden email]</a> Subject: Re: [gst-devel] How to set window height & width using Playbin Hi Giles, Thanks a lot for your reply. But I want to set the video height & width using playbin. So I attached a video sink xvimagesink to playbin, it is not playing anything. Also I am unable to set the height & width in video sink. Is there any other method to set video height & width using playbin? Regards, Deb -- View this message in context: <a href="http://n4.nabble.com/How-to-set-window-height-width-using-Playbin-tp1018443p1099823.html" link="external" rel="nofollow" target="_blank">http://n4.nabble.com/How-to-set-window-height-width-using-Playbin-tp1018443p1099823.html</a> Sent from the GStreamer-devel mailing list archive at Nabble.com. ------------------------------------------------------------------------------ Throughout its 18-year history, RSA Conference consistently attracts the world's best and brightest in the field, creating opportunities for Conference attendees to learn about information security's most important issues through interactions with peers, luminaries and emerging and established companies. <a href="http://p.sf.net/sfu/rsaconf-dev2dev" link="external" rel="nofollow" target="_blank">http://p.sf.net/sfu/rsaconf-dev2dev</a> _______________________________________________ gstreamer-devel mailing list </div><a href="http://n4.nabble.com/user/SendEmail.jtp?type=node&node=1099895&i=2" rel="nofollow" link="external" target="_blank">[hidden email]</a> <div class="im"> <a href="https://lists.sourceforge.net/lists/listinfo/gstreamer-devel" link="external" rel="nofollow" target="_blank">https://lists.sourceforge.net/lists/listinfo/gstreamer-devel</a> ------------------------------------------------------------------------------ Throughout its 18-year history, RSA Conference consistently attracts the world's best and brightest in the field, creating opportunities for Conference attendees to learn about information security's most important issues through interactions with peers, luminaries and emerging and established companies. <a href="http://p.sf.net/sfu/rsaconf-dev2dev" link="external" rel="nofollow" target="_blank">http://p.sf.net/sfu/rsaconf-dev2dev</a> _______________________________________________ gstreamer-devel mailing list </div><a href="http://n4.nabble.com/user/SendEmail.jtp?type=node&node=1099895&i=3" rel="nofollow" link="external" target="_blank">[hidden email]</a> <div class="im"> <a href="https://lists.sourceforge.net/lists/listinfo/gstreamer-devel" link="external" rel="nofollow" target="_blank">https://lists.sourceforge.net/lists/listinfo/gstreamer-devel</a> </div> <div class="MsoNormal" style="text-align: center;" align="center"> <hr align="center" color="#cccccc" noshade size="1" width="100%"> </div> <div> View message @ <a href="http://n4.nabble.com/How-to-set-window-height-width-using-Playbin-tp1018443p1099895.html" rel="nofollow" link="external" target="_blank">http://n4.nabble.com/How-to-set-window-height-width-using-Playbin-tp1018443p1099895.html</a> To unsubscribe from Re: [gst-devel] How to set window height & width using Playbin, <a rel="nofollow" link="external">click here</a>. </div> </div> Please do not print this email unless it is absolutely necessary. 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