<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=gb2312">
<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:st1="urn:schemas-microsoft-com:office:smarttags" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta name=Generator content="Microsoft Word 11 (filtered medium)">
<!--[if !mso]>
<style>
v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style>
<![endif]--><o:SmartTagType
namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="PersonName"/>
<!--[if !mso]>
<style>
st1\:*{behavior:url(#default#ieooui) }
</style>
<![endif]-->
<style>
<!--
/* Font Definitions */
@font-face
{font-family:SimSun;
panose-1:2 1 6 0 3 1 1 1 1 1;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
@font-face
{font-family:SimSun;
panose-1:2 1 6 0 3 1 1 1 1 1;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
text-align:justify;
text-justify:inter-ideograph;
font-size:10.5pt;
font-family:"Times New Roman";}
a:link, span.MsoHyperlink
{color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{color:purple;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal;
font-family:Arial;
color:windowtext;}
span.EmailStyle18
{mso-style-type:personal-reply;
font-family:Arial;
color:navy;}
@page Section1
{size:595.3pt 841.9pt;
margin:72.0pt 90.0pt 72.0pt 90.0pt;
layout-grid:15.6pt;}
div.Section1
{page:Section1;}
-->
</style>
</head>
<body lang=ZH-CN link=blue vlink=purple style='text-justify-trim:punctuation'>
<div class=Section1 style='layout-grid:15.6pt'>
<p class=MsoNormal><font size=1 color=navy face=Arial><span lang=EN-US
style='font-size:9.0pt;font-family:Arial;color:navy'>Could anyone give some
comments?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 color=navy face=Arial><span lang=EN-US
style='font-size:9.0pt;font-family:Arial;color:navy'>I think we would rather
use playbin2 than uridecodebin for applications, so it¡¯s better that playbin2
expose the ¡®caps¡¯ property as well.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 color=navy face=Arial><span lang=EN-US
style='font-size:9.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=1 color=navy face=Arial><span lang=EN-US
style='font-size:9.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<div>
<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span lang=EN-US style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabindex=-1>
</span></font></div>
<p class=MsoNormal align=left style='text-align:left'><b><font size=2
face=Tahoma><span lang=EN-US style='font-size:10.0pt;font-family:Tahoma;
font-weight:bold'>From:</span></font></b><font size=2 face=Tahoma><span
lang=EN-US style='font-size:10.0pt;font-family:Tahoma'> Zhao, Halley
[mailto:halley.zhao@intel.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> 2010</span></font><font
size=2 face=宋体><span style='font-size:10.0pt;font-family:SimSun'>Äê</span></font><font
size=2 face=Tahoma><span lang=EN-US style='font-size:10.0pt;font-family:Tahoma'>7</span></font><font
size=2 face=宋体><span style='font-size:10.0pt;font-family:SimSun'>ÔÂ</span></font><font
size=2 face=Tahoma><span lang=EN-US style='font-size:10.0pt;font-family:Tahoma'>5</span></font><font
size=2 face=宋体><span style='font-size:10.0pt;font-family:SimSun'>ÈÕ</span></font><font
size=2 face=Tahoma><span lang=EN-US style='font-size:10.0pt;font-family:Tahoma'>
15:50<br>
<b><span style='font-weight:bold'>To:</span></b> <st1:PersonName w:st="on">gstreamer-devel@lists.sourceforge.net</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> [gst-devel] 'caps'
property of decodebin2/uridecodebin/playbin2 for 'video/x-raw-va'</span></font><font
size=3><span lang=EN-US style='font-size:12.0pt'><o:p></o:p></span></font></p>
</div>
<p class=MsoNormal align=left style='text-align:left'><font size=2
face="Times New Roman"><span lang=EN-US style='font-size:10.5pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;font-family:Arial'>¡®caps¡¯ property are defined for
decodebin2/uridecodebin as ¡°The caps on which to stop decoding. (NULL=
default)¡±. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;font-family:Arial'>But I can¡¯t find it for playbin2, I think we¡¯d better
add it as well.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;font-family:Arial'>I met issues for creating a customized sink for libva:
¡®video/x-raw-va¡¯; my sink renders video frame as texture in Qt. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;font-family:Arial'>When I set playbin2 ¡®video-sink¡¯ to my customized
sink, decodebin2 doesn¡¯t stop auto-plug (expose_pad) when it comes to
¡®video/x-raw-va¡¯ because decodebin2 doesn¡¯t think ¡®video/x-raw-va¡¯ is a raw type.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;font-family:Arial'>(by the way, the auto-plug stops when playbin2 finds
it comes to a sink; however this sink is not my customized sink. because my
sink requires many app context (OpenGL etc), it is similar to clutter-gst sink)<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;font-family:Arial'>I could fix the issue by adding ¡®video/x-raw-va¡¯ to
DEFAULT_RAW_CAPS for uridecoderbin, <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;font-family:Arial'>But I think it should be the better solution to add
¡®caps¡¯ property for playbin2 as well.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;font-family:Arial'>Do you agree? Thanks.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
text-indent:20.1pt'><b><font size=2 color=blue face=Arial><span lang=FI
style='font-size:10.0pt;font-family:Arial;color:blue;font-weight:bold'>ZHAO,
Halley (Aihua)</span></font></b><span lang=FI><o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
text-indent:20.1pt'><font size=2 color=blue face=Arial><span lang=FI
style='font-size:10.0pt;font-family:Arial;color:blue'>Email: halley.zhao</span></font><font
size=2 color=blue face=Arial><span lang=EN-US style='font-size:10.0pt;
font-family:Arial;color:blue'><a href="blocked::mailto:aihua.zhao@intel.com"
title="mailto:aihua.zhao@intel.com mailto:hui.xue@intel.com"><span lang=FI>@intel.com</span></a></span></font><font
color=blue><span lang=FI style='color:blue'><o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
text-indent:16.0pt'><font size=1 color=blue face=Arial><span lang=DA
style='font-size:8.0pt;font-family:Arial;color:blue'>Tel:
+86(21)61166476 iNet: 8821-6476</span></font><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
text-indent:16.0pt'><font size=2 color="#3366ff" face=Arial><span lang=DA
style='font-size:10.0pt;font-family:Arial;color:#3366FF'>SSG/OTC/Moblin 3W038
Pole: F4</span></font><span lang=EN-US><o:p></o:p></span></p>
</div>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US
style='font-size:10.0pt'><o:p> </o:p></span></font></p>
</div>
</body>
</html>