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<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;font-family:Arial'>Dear<font color=navy><span style='color:navy'> gst</span></font>,<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'>This is hyunzhang from VIA Technologies shanghai, <st1:place
w:st="on"><st1:country-region w:st="on">CHINA</st1:country-region></st1:place>.
I am writing plugins for gst. In our project we use S<st1:chmetcnv TCSC="0"
NumberType="1" Negative="False" HasSpace="False" SourceValue="3" UnitName="’"
w:st="on">3’</st1:chmetcnv>s video card to implement hardware video
decode acceleration. In decoder plugin it gets GstBuffer from demux plugin written
by gst organization. But when our decoder decoded raw data, the result is
stored in hardware and we can get it by surface id only through our
driver(there is not any data in system memory). For our video sink, it can only
accept surface id from our decode plugin. Their communication is only through
surface id with a new mimetype ‘x-raw-via’ as we define newly.<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'>In totem, I found it can only use
‘playbin’. The ‘playbin’ will build a
‘vbin’. But ‘vbin’ contains identity, colorspace and
videoscale. Their caps is not suitable for the new mimetype
‘x-raw-via’. The mean is I want decoder’s out is transferred
to video sink directly under totem.<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 have any method to deal with this ?<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>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;font-family:Arial'>Thank you very much.<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'>hyunzhang<o:p></o:p></span></font></p>
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