?? directshow幫助文檔學習筆記之directshow base classes - zhangxinbin的專欄 - csdnblog.htm
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align=left><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-bidi-font-family: 宋體; mso-font-kerning: 0pt"><A
href="mk:@MSITStore:C:\DXSDK\Doc\DirectX9\DirectX9_c.chm::/directx/htm/cbaserendererclass.htm"><STRONG>CBaseRenderer</STRONG></A><O:P></O:P></SPAN></P></TD>
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align=left><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-bidi-font-family: 宋體; mso-font-kerning: 0pt">Base
class for <SPAN class=SpellE>renderer</SPAN> filters. The input pin for
this class is <A
href="mk:@MSITStore:C:\DXSDK\Doc\DirectX9\DirectX9_c.chm::/directx/htm/crendererinputpinclass.htm"><STRONG>CRendererInputPin</STRONG></A>.<O:P></O:P></SPAN></P></TD></TR>
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<P class=MsoNormal style="TEXT-ALIGN: left; mso-pagination: widow-orphan"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-bidi-font-family: 宋體; mso-font-kerning: 0pt"><A
href="mk:@MSITStore:C:\DXSDK\Doc\DirectX9\DirectX9_c.chm::/directx/htm/cbasevideorendererclass.htm"><STRONG>CBaseVideoRenderer</STRONG></A><O:P></O:P></SPAN></P></TD>
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style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-bidi-font-family: 宋體; mso-font-kerning: 0pt">Base
class for video <SPAN class=SpellE>renderers</SPAN>. This class derives
from <SPAN
class=SpellE><STRONG>CBaseRenderer</STRONG></SPAN>.<O:P></O:P></SPAN></P></TD></TR></TBODY></TABLE>
<P class=MsoNormal style="TEXT-ALIGN: left; mso-pagination: widow-orphan"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-bidi-font-family: 宋體; mso-font-kerning: 0pt"><O:P></O:P></SPAN></P>
<P class=MsoNormal
style="TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-bidi-font-family: 宋體; mso-font-kerning: 0pt">To
use these classes, you must derive your own class and write code to support the
functionality that is specific to your <A title=Filter
href="http://blog.csdn.net/zhangxinbin/archive/2006/10/22/Filter">Filter</A>.
The more specialized the base class, the less code you will need to write in
your derived class.<O:P></O:P></SPAN></P>
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align=left><STRONG><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-bidi-font-family: 宋體; mso-font-kerning: 0pt">Helper
Objects</SPAN></STRONG><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-bidi-font-family: 宋體; mso-font-kerning: 0pt"><O:P></O:P></SPAN></P>
<P class=MsoNormal
style="TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-bidi-font-family: 宋體; mso-font-kerning: 0pt">The
following classes implement helper objects that are used by filters and pins.
<SPAN style="COLOR: fuchsia">Most of these classes can be used without deriving
new classes from them:</SPAN><O:P></O:P></SPAN></P>
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<P class=MsoNormal style="TEXT-ALIGN: left; mso-pagination: widow-orphan"
align=left><STRONG><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-bidi-font-family: 宋體; mso-font-kerning: 0pt">Class</SPAN></STRONG><SPAN
lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-bidi-font-family: 宋體; mso-font-kerning: 0pt"><O:P></O:P></SPAN></P></TD>
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align=left><STRONG><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-bidi-font-family: 宋體; mso-font-kerning: 0pt">Description</SPAN></STRONG><SPAN
lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-bidi-font-family: 宋體; mso-font-kerning: 0pt"><O:P></O:P></SPAN></P></TD></TR>
<TR style="mso-yfti-irow: 1">
<TD
style="PADDING-RIGHT: 3.75pt; PADDING-LEFT: 3.75pt; PADDING-BOTTOM: 3.75pt; PADDING-TOP: 3.75pt"
vAlign=top>
<P class=MsoNormal style="TEXT-ALIGN: left; mso-pagination: widow-orphan"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-bidi-font-family: 宋體; mso-font-kerning: 0pt"><A
href="mk:@MSITStore:C:\DXSDK\Doc\DirectX9\DirectX9_c.chm::/directx/htm/cpullpinclass.htm"><STRONG>CPullPin</STRONG></A><O:P></O:P></SPAN></P></TD>
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<P class=MsoNormal style="TEXT-ALIGN: left; mso-pagination: widow-orphan"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-bidi-font-family: 宋體; mso-font-kerning: 0pt">Helper
object for input pins on parser filters. Supports <A
href="mk:@MSITStore:C:\DXSDK\Doc\DirectX9\DirectX9_c.chm::/directx/htm/iasyncreaderinterface.htm"><STRONG>IAsyncReader</STRONG></A>
connections with pull sources.<O:P></O:P></SPAN></P></TD></TR>
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<P class=MsoNormal style="TEXT-ALIGN: left; mso-pagination: widow-orphan"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-bidi-font-family: 宋體; mso-font-kerning: 0pt"><A
href="mk:@MSITStore:C:\DXSDK\Doc\DirectX9\DirectX9_c.chm::/directx/htm/coutputqueueclass.htm"><STRONG>COutputQueue</STRONG></A><O:P></O:P></SPAN></P></TD>
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<P class=MsoNormal style="TEXT-ALIGN: left; mso-pagination: widow-orphan"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-bidi-font-family: 宋體; mso-font-kerning: 0pt">Helper
object for output pins that queue samples for delivery on a worker
thread.<O:P></O:P></SPAN></P></TD></TR>
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style="PADDING-RIGHT: 3.75pt; PADDING-LEFT: 3.75pt; PADDING-BOTTOM: 3.75pt; PADDING-TOP: 3.75pt"
vAlign=top>
<P class=MsoNormal style="TEXT-ALIGN: left; mso-pagination: widow-orphan"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-bidi-font-family: 宋體; mso-font-kerning: 0pt"><A
href="mk:@MSITStore:C:\DXSDK\Doc\DirectX9\DirectX9_c.chm::/directx/htm/csourceseekingclass.htm"><STRONG>CSourceSeeking</STRONG></A><O:P></O:P></SPAN></P></TD>
<TD
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vAlign=top>
<P class=MsoNormal style="TEXT-ALIGN: left; mso-pagination: widow-orphan"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-bidi-font-family: 宋體; mso-font-kerning: 0pt">Help
object for implementing seeking on a source <A title=Filter
href="http://blog.csdn.net/zhangxinbin/archive/2006/10/22/Filter">Filter</A>
with exactly one output pin. (This class is not designed for filters with
multiple pins, such as parsers.)<O:P></O:P></SPAN></P></TD></TR>
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vAlign=top>
<P class=MsoNormal style="TEXT-ALIGN: left; mso-pagination: widow-orphan"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-bidi-font-family: 宋體; mso-font-kerning: 0pt"><A
href="mk:@MSITStore:C:\DXSDK\Doc\DirectX9\DirectX9_c.chm::/directx/htm/cenumpinsclass.htm"><STRONG>CEnumPins</STRONG></A><O:P></O:P></SPAN></P></TD>
<TD
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vAlign=top>
<P class=MsoNormal style="TEXT-ALIGN: left; mso-pagination: widow-orphan"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-bidi-font-family: 宋體; mso-font-kerning: 0pt">Enumerator
object for enumerating pins on a <A title=Filter
href="http://blog.csdn.net/zhangxinbin/archive/2006/10/22/Filter">Filter</A>.
Implements the <A
href="mk:@MSITStore:C:\DXSDK\Doc\DirectX9\DirectX9_c.chm::/directx/htm/ienumpinsinterface.htm"><STRONG>IEnumPins</STRONG></A>
interface.<O:P></O:P></SPAN></P></TD></TR>
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<TD
style="PADDING-RIGHT: 3.75pt; PADDING-LEFT: 3.75pt; PADDING-BOTTOM: 3.75pt; PADDING-TOP: 3.75pt"
vAlign=top>
<P class=MsoNormal style="TEXT-ALIGN: left; mso-pagination: widow-orphan"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-bidi-font-family: 宋體; mso-font-kerning: 0pt"><A
href="mk:@MSITStore:C:\DXSDK\Doc\DirectX9\DirectX9_c.chm::/directx/htm/cenummediatypesclass.htm"><STRONG>CEnumMediaTypes</STRONG></A><O:P></O:P></SPAN></P></TD>
<TD
style="PADDING-RIGHT: 3.75pt; PADDING-LEFT: 3.75pt; PADDING-BOTTOM: 3.75pt; PADDING-TOP: 3.75pt"
vAlign=top>
<P class=MsoNormal style="TEXT-ALIGN: left; mso-pagination: widow-orphan"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-bidi-font-family: 宋體; mso-font-kerning: 0pt">Enumerator
object for enumerating preferred media types on a pin. Implements the <A
href="mk:@MSITStore:C:\DXSDK\Doc\DirectX9\DirectX9_c.chm::/directx/htm/ienummediatypesinterface.htm"><STRONG>IEnumMediaTypes</STRONG></A>
interface.<O:P></O:P></SPAN></P></TD></TR>
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<TD
style="PADDING-RIGHT: 3.75pt; PADDING-LEFT: 3.75pt; PADDING-BOTTOM: 3.75pt; PADDING-TOP: 3.75pt"
vAlign=top>
<P class=MsoNormal style="TEXT-ALIGN: left; mso-pagination: widow-orphan"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-bidi-font-family: 宋體; mso-font-kerning: 0pt"><A
href="mk:@MSITStore:C:\DXSDK\Doc\DirectX9\DirectX9_c.chm::/directx/htm/cmemallocatorclass.htm"><STRONG>CMemAllocator</STRONG></A><O:P></O:P></SPAN></P></TD>
<TD
style="PADDING-RIGHT: 3.75pt; PADDING-LEFT: 3.75pt; PADDING-BOTTOM: 3.75pt; PADDING-TOP: 3.75pt"
vAlign=top>
<P class=MsoNormal style="TEXT-ALIGN: left; mso-pagination: widow-orphan"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-bidi-font-family: 宋體; mso-font-kerning: 0pt">Memory
<SPAN class=SpellE>allocator</SPAN> object. Implements the <A
href="mk:@MSITStore:C:\DXSDK\Doc\DirectX9\DirectX9_c.chm::/directx/htm/imemallocatorinterface.htm"><STRONG>IMemAllocator</STRONG></A>
interface.<O:P></O:P></SPAN></P></TD></TR>
<TR style="mso-yfti-irow: 7">
<TD
style="PADDING-RIGHT: 3.75pt; PADDING-LEFT: 3.75pt; PADDING-BOTTOM: 3.75pt; PADDING-TOP: 3.75pt"
vAlign=top>
<P class=MsoNormal style="TEXT-ALIGN: left; mso-pagination: widow-orphan"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-bidi-font-family: 宋體; mso-font-kerning: 0pt"><A
href="mk:@MSITStore:C:\DXSDK\Doc\DirectX9\DirectX9_c.chm::/directx/htm/cmediasampleclass.htm"><STRONG>CMediaSample</STRONG></A><O:P></O:P></SPAN></P></TD>
<TD
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vAlign=top>
<P class=MsoNormal style="TEXT-ALIGN: left; mso-pagination: widow-orphan"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-bidi-font-family: 宋體; mso-font-kerning: 0pt">Media
sample object. Implements the <A
href="mk:@MSITStore:C:\DXSDK\Doc\DirectX9\DirectX9_c.chm::/directx/htm/imediasample2interface.htm"><STRONG>IMediaSample2</STRONG></A>
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