<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns:p="urn:schemas-microsoft-com:office:powerpoint" xmlns:a="urn:schemas-microsoft-com:office:access" xmlns:dt="uuid:C2F41010-65B3-11d1-A29F-00AA00C14882" xmlns:s="uuid:BDC6E3F0-6DA3-11d1-A2A3-00AA00C14882" xmlns:rs="urn:schemas-microsoft-com:rowset" xmlns:z="#RowsetSchema" xmlns:b="urn:schemas-microsoft-com:office:publisher" xmlns:ss="urn:schemas-microsoft-com:office:spreadsheet" xmlns:c="urn:schemas-microsoft-com:office:component:spreadsheet" xmlns:odc="urn:schemas-microsoft-com:office:odc" xmlns:oa="urn:schemas-microsoft-com:office:activation" xmlns:html="http://www.w3.org/TR/REC-html40" xmlns:q="http://schemas.xmlsoap.org/soap/envelope/" xmlns:rtc="http://microsoft.com/officenet/conferencing" xmlns:D="DAV:" xmlns:Repl="http://schemas.microsoft.com/repl/" xmlns:mt="http://schemas.microsoft.com/sharepoint/soap/meetings/" xmlns:x2="http://schemas.microsoft.com/office/excel/2003/xml" xmlns:ppda="http://www.passport.com/NameSpace.xsd" xmlns:ois="http://schemas.microsoft.com/sharepoint/soap/ois/" xmlns:dir="http://schemas.microsoft.com/sharepoint/soap/directory/" xmlns:ds="http://www.w3.org/2000/09/xmldsig#" xmlns:dsp="http://schemas.microsoft.com/sharepoint/dsp" xmlns:udc="http://schemas.microsoft.com/data/udc" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:sub="http://schemas.microsoft.com/sharepoint/soap/2002/1/alerts/" xmlns:ec="http://www.w3.org/2001/04/xmlenc#" xmlns:sp="http://schemas.microsoft.com/sharepoint/" xmlns:sps="http://schemas.microsoft.com/sharepoint/soap/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:udcs="http://schemas.microsoft.com/data/udc/soap" xmlns:udcxf="http://schemas.microsoft.com/data/udc/xmlfile" xmlns:udcp2p="http://schemas.microsoft.com/data/udc/parttopart" xmlns:wf="http://schemas.microsoft.com/sharepoint/soap/workflow/" xmlns:dsss="http://schemas.microsoft.com/office/2006/digsig-setup" xmlns:dssi="http://schemas.microsoft.com/office/2006/digsig" xmlns:mdssi="http://schemas.openxmlformats.org/package/2006/digital-signature" xmlns:mver="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns:mrels="http://schemas.openxmlformats.org/package/2006/relationships" xmlns:spwp="http://microsoft.com/sharepoint/webpartpages" xmlns:ex12t="http://schemas.microsoft.com/exchange/services/2006/types" xmlns:ex12m="http://schemas.microsoft.com/exchange/services/2006/messages" xmlns:pptsl="http://schemas.microsoft.com/sharepoint/soap/SlideLibrary/" xmlns:spsl="http://microsoft.com/webservices/SharePointPortalServer/PublishedLinksService" xmlns:Z="urn:schemas-microsoft-com:" xmlns:st="" xmlns="http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv=Content-Type content="text/html; charset=us-ascii"> <meta name=Generator content="Microsoft Word 12 (filtered medium)"> <style>  </style>  </head> <body lang=EN-US link=blue vlink=purple> <div class=WordSection1> I found one issue that, <o:p></o:p> after vaimagesink throw out the msg of ‘prepare-xwindow-id’, gst_xvimagesink_setcaps will run into gst_xvimagesink_xwindow_new() when , gst_xvimagesink_set_xwindow_id() is still on the way.<o:p></o:p> I think it is caused by gst_xvimagesink_set_xwindow_id is called from UI thread in async. Is it a bug of xvimagesink, or I have done something wrong?<o:p></o:p> See the code below.<o:p></o:p> <o:p> </o:p> <o:p> </o:p> static gboolean<o:p></o:p> gst_xvimagesink_setcaps (GstBaseSink * bsink, GstCaps * caps)<o:p></o:p> {<o:p></o:p> // …<o:p></o:p>   /* Notify application to set xwindow id now */<o:p></o:p>   g_mutex_lock (xvimagesink->flow_lock);<o:p></o:p>   if (!xvimagesink->xwindow) {<o:p></o:p>     g_mutex_unlock (xvimagesink->flow_lock);<o:p></o:p>     gst_x_overlay_prepare_xwindow_id (GST_X_OVERLAY (xvimagesink));<o:p></o:p>   } else {<o:p></o:p>     g_mutex_unlock (xvimagesink->flow_lock);<o:p></o:p>   }<o:p></o:p> <o:p> </o:p>   /* Creating our window and our image with the display size in pixels */<o:p></o:p>   if (GST_VIDEO_SINK_WIDTH (xvimagesink) <= 0 ||<o:p></o:p>       GST_VIDEO_SINK_HEIGHT (xvimagesink) <= 0)<o:p></o:p>     goto no_display_size;<o:p></o:p> <o:p> </o:p>   g_mutex_lock (xvimagesink->flow_lock);<o:p></o:p>   if (!xvimagesink->xwindow) {<o:p></o:p>     xvimagesink->xwindow = gst_xvimagesink_xwindow_new (xvimagesink,<o:p></o:p>         GST_VIDEO_SINK_WIDTH (xvimagesink),<o:p></o:p>         GST_VIDEO_SINK_HEIGHT (xvimagesink));<o:p></o:p>   }<o:p></o:p> <o:p> </o:p> // …<o:p></o:p> }<o:p></o:p> </div> </body> </html>