sgvideochannel.html

这个是java的quicktime for java 的详细使用文档

<A NAME="setCompressor(int, quicktime.std.image.Compressor, int, int, int)"><!-- --></A><H3>
setCompressor</H3>
<PRE>
public void <B>setCompressor</B>(int&nbsp;depth,
                          <A HREF="../../../quicktime/std/image/Compressor.html">Compressor</A>&nbsp;compressor,
                          int&nbsp;spatialQuality,
                          int&nbsp;temporalQuality,
                          int&nbsp;keyFrameRate)
                   throws <A HREF="../../../quicktime/std/StdQTException.html">StdQTException</A></PRE>
<DL>
<DD>Set a channel誷 current image-compression parameters. 
	 <BR><BR><b> <a href="http://developer.apple.com/techpubs/quicktime/qtdevdocs/INMAC/QTC/imSeqGrabChanComp.12.htm#imSeqG69">QuickTime::SGSetVideoCompressor</a>  <a href="http://developer.apple.com/techpubs/quicktime/qtdevdocs/INMAC/QTC/imSeqGrabComp.11.htm#imSeqG33">QuickTime::SGSetVideoCompressor</a> </b><BR><BR>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>depth</CODE> - Specifies the depth at which the image is likely to be viewed.<DD><CODE>compressor</CODE> - Specifies the image compressor identifier.<DD><CODE>spatialQuality</CODE> - Specifies the desired compressed image quality.<DD><CODE>temporalQuality</CODE> - This parameter governs the level of compression you desire with respect to information between successive frames in the sequence.<DD><CODE>keyFrameRate</CODE> - Specifies the maximum number of frames allowed between key frames.</DL>
</DD>
</DL>
<HR>

<A NAME="getCompressor()"><!-- --></A><H3>
getCompressor</H3>
<PRE>
public <A HREF="../../../quicktime/std/sg/SGVideoCompressorInfo.html">SGVideoCompressorInfo</A> <B>getCompressor</B>()
                                    throws <A HREF="../../../quicktime/std/StdQTException.html">StdQTException</A></PRE>
<DL>
<DD>Get a channel誷 current image-compression parameters. 
	 <BR><BR><b> <a href="http://developer.apple.com/techpubs/quicktime/qtdevdocs/INMAC/QTC/imSeqGrabChanComp.12.htm#imSeqG71">QuickTime::SGGetVideoCompressor</a>  <a href="http://developer.apple.com/techpubs/quicktime/qtdevdocs/INMAC/QTC/imSeqGrabComp.11.htm#imSeqG37">QuickTime::SGGetVideoCompressor</a> </b><BR><BR>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>returns</CODE> - a SGVideoCompressorInfo object.</DL>
</DD>
</DL>
<HR>

<A NAME="getDigitizerComponent()"><!-- --></A><H3>
getDigitizerComponent</H3>
<PRE>
public <A HREF="../../../quicktime/std/sg/VideoDigitizer.html">VideoDigitizer</A> <B>getDigitizerComponent</B>()</PRE>
<DL>
<DD>Allows you to determine the video digitizer component that is providing source
 video to a video channel component.
	 <BR><BR><b> <a href="http://developer.apple.com/techpubs/quicktime/qtdevdocs/INMAC/QTC/imSeqGrabChanComp.12.htm#imSeqG76">QuickTime::SGGetVideoDigitizerComponent</a>  <a href="http://developer.apple.com/techpubs/quicktime/qtdevdocs/INMAC/QTC/imSeqGrabComp.11.htm#imSeqG42">QuickTime::SGGetVideoDigitizerComponent</a> </b><BR><BR>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>the Video Digitizer component or null if there is no video digitizer</DL>
</DD>
</DL>
<HR>

<A NAME="setDigitizerComponent(quicktime.std.sg.VideoDigitizer)"><!-- --></A><H3>
setDigitizerComponent</H3>
<PRE>
public void <B>setDigitizerComponent</B>(<A HREF="../../../quicktime/std/sg/VideoDigitizer.html">VideoDigitizer</A>&nbsp;vdig)
                           throws <A HREF="../../../quicktime/std/StdQTException.html">StdQTException</A></PRE>
<DL>
<DD>Allows you to assign a video digitizer component to a video channel.
	 <BR><BR><b> <a href="http://developer.apple.com/techpubs/quicktime/qtdevdocs/INMAC/QTC/imSeqGrabChanComp.12.htm#imSeqG73">QuickTime::SGSetVideoDigitizerComponent</a>  <a href="http://developer.apple.com/techpubs/quicktime/qtdevdocs/INMAC/QTC/imSeqGrabComp.11.htm#imSeqG39">QuickTime::SGSetVideoDigitizerComponent</a> </b><BR><BR>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>vdig</CODE> - the digitizer component that identifies a connection to a video digitizer component.</DL>
</DD>
</DL>
<HR>

<A NAME="digitizerChanged()"><!-- --></A><H3>
digitizerChanged</H3>
<PRE>
public void <B>digitizerChanged</B>()
                      throws <A HREF="../../../quicktime/std/StdQTException.html">StdQTException</A></PRE>
<DL>
<DD>Allows you to notify the sequence grabber component whenever you change the
 configuration of a video channel's video digitizer.
	 <BR><BR><b> <a href="http://developer.apple.com/techpubs/quicktime/qtdevdocs/INMAC/QTC/imSeqGrabChanComp.12.htm#imSeqG79">QuickTime::SGVideoDigitizerChanged</a>  <a href="http://developer.apple.com/techpubs/quicktime/qtdevdocs/INMAC/QTC/imSeqGrabComp.11.htm#imSeqG45">QuickTime::SGVideoDigitizerChanged</a> </b><BR><BR>
</DL>
</DD>
</DL>
<HR>

<A NAME="setVideoRect(quicktime.qd.QDRect)"><!-- --></A><H3>
setVideoRect</H3>
<PRE>
public void <B>setVideoRect</B>(<A HREF="../../../quicktime/qd/QDRect.html">QDRect</A>&nbsp;r)
                  throws <A HREF="../../../quicktime/std/StdQTException.html">StdQTException</A></PRE>
<DL>
<DD>Allows you to specify the portion of the source video image that is to be captured.
	 <BR><BR><b> <a href="http://developer.apple.com/techpubs/quicktime/qtdevdocs/INMAC/QTC/imSeqGrabChanComp.12.htm#imSeqG58">QuickTime::SGSetVideoRect</a>  <a href="http://developer.apple.com/techpubs/quicktime/qtdevdocs/INMAC/QTC/imSeqGrabComp.11.htm#imSeqG21">QuickTime::SGSetVideoRect</a> </b><BR><BR>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>r</CODE> - the rectangle that defines the potion of the source video image to be captured.</DL>
</DD>
</DL>
<HR>

<A NAME="getVideoRect()"><!-- --></A><H3>
getVideoRect</H3>
<PRE>
public <A HREF="../../../quicktime/qd/QDRect.html">QDRect</A> <B>getVideoRect</B>()
                    throws <A HREF="../../../quicktime/std/StdQTException.html">StdQTException</A></PRE>
<DL>
<DD>Allows you to determine the portion of the source video image that is to be captured.
	 <BR><BR><b> <a href="http://developer.apple.com/techpubs/quicktime/qtdevdocs/INMAC/QTC/imSeqGrabChanComp.12.htm#imSeqG62">QuickTime::SGGetVideoRect</a>  <a href="http://developer.apple.com/techpubs/quicktime/qtdevdocs/INMAC/QTC/imSeqGrabComp.11.htm#imSeqG24">QuickTime::SGGetVideoRect</a> </b><BR><BR>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>the rectangle that defines the portion of the source video being captured.</DL>
</DD>
</DL>
<HR>

<A NAME="getSrcVideoBounds()"><!-- --></A><H3>
getSrcVideoBounds</H3>
<PRE>
public <A HREF="../../../quicktime/qd/QDRect.html">QDRect</A> <B>getSrcVideoBounds</B>()
                         throws <A HREF="../../../quicktime/std/StdQTException.html">StdQTException</A></PRE>
<DL>
<DD>Allows you to determine the size of the source video boundary rectangle.
	 <BR><BR><b> <a href="http://developer.apple.com/techpubs/quicktime/qtdevdocs/INMAC/QTC/imSeqGrabChanComp.12.htm#imSeqG55">QuickTime::SGGetSrcVideoBounds</a>  <a href="http://developer.apple.com/techpubs/quicktime/qtdevdocs/INMAC/QTC/imSeqGrabComp.11.htm#imSeqG19">QuickTime::SGGetSrcVideoBounds</a> </b><BR><BR>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>the rectangle that defines the size of the source video being captured.</DL>
</DD>
</DL>
<HR>

<A NAME="setFrameRate(float)"><!-- --></A><H3>
setFrameRate</H3>
<PRE>
public void <B>setFrameRate</B>(float&nbsp;frameRate)
                  throws <A HREF="../../../quicktime/std/StdQTException.html">StdQTException</A></PRE>
<DL>
<DD>The SGSetFrameRate function allows you to specify a video channel誷 frame rate for recording.
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>frameRate</CODE> - Specifies the desired frame rate. Set this parameter to 0 to select the channel誷 default frame rate. Typically, this corresponds to the fastest rate that the channel can support.</DL>
</DD>
</DL>
<HR>

<A NAME="getFrameRate()"><!-- --></A><H3>
getFrameRate</H3>
<PRE>
public float <B>getFrameRate</B>()
                   throws <A HREF="../../../quicktime/std/StdQTException.html">StdQTException</A></PRE>
<DL>
<DD>The SGGetFrameRate function allows you to retrieve a video channel誷 frame rate for recording.
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>the current frame rate</DL>
</DD>
</DL>
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