csequence.html

这个是java的quicktime for java 的详细使用文档

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<A NAME="getMaxCompressionSize(quicktime.qd.QDGraphics)"><!-- --></A><H3>
getMaxCompressionSize</H3>
<PRE>
public int <B>getMaxCompressionSize</B>(<A HREF="../../../quicktime/qd/QDGraphics.html">QDGraphics</A>&nbsp;src)
                          throws <A HREF="../../../quicktime/std/StdQTException.html">StdQTException</A></PRE>
<DL>
<DD>This method allows your application to determine the maximum size an image will
 be after compression for a given compression sequence. The size returned is in the
 number of bytes that the encoded image will require.
	 <BR><BR><b> <a href="http://developer.apple.com/techpubs/quicktime/qtdevdocs/REF/refImageCompMgr.11.htm#refIma282">QuickTime::GetCSequenceMaxCompressionSize</a> </b><BR><BR>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>src</CODE> - a QDGraphics that contains the PixMap which is the source image compression data. This may NOT be null.<DT><B>Returns:</B><DD>the maximum size an image in this sequence will be after compression</DL>
</DD>
</DL>
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<A NAME="setQuality(int, int)"><!-- --></A><H3>
setQuality</H3>
<PRE>
public void <B>setQuality</B>(int&nbsp;spatialQuality,
                       int&nbsp;temporalQuality)
                throws <A HREF="../../../quicktime/std/StdQTException.html">StdQTException</A></PRE>
<DL>
<DD>This method allows you to adjust the spatial or temporal quality for the
 current sequence.
	 <BR><BR><b> <a href="http://developer.apple.com/techpubs/quicktime/qtdevdocs/INMAC/QT/iqImageCompMgr.24.htm#iqImag138">QuickTime::SetCSequenceQuality</a> </b><BR><BR>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>spatialQuality</CODE> - the desired compressed image quality<DD><CODE>temporalQuality</CODE> - the desired sequence temporal quality</DL>
</DD>
</DL>
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<A NAME="setKeyFrameRate(int)"><!-- --></A><H3>
setKeyFrameRate</H3>
<PRE>
public void <B>setKeyFrameRate</B>(int&nbsp;keyFrameRate)
                     throws <A HREF="../../../quicktime/std/StdQTException.html">StdQTException</A></PRE>
<DL>
<DD>This method allows you to adjust the key frame rate for the current sequence.
	 <BR><BR><b> <a href="http://developer.apple.com/techpubs/quicktime/qtdevdocs/INMAC/QT/iqImageCompMgr.24.htm#iqImag141">QuickTime::SetCSequenceKeyFrameRate</a> </b><BR><BR>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>keyFrameRate</CODE> - the maximum number of frames allowed between key frames</DL>
</DD>
</DL>
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<A NAME="getKeyFrameRate()"><!-- --></A><H3>
getKeyFrameRate</H3>
<PRE>
public int <B>getKeyFrameRate</B>()
                    throws <A HREF="../../../quicktime/std/StdQTException.html">StdQTException</A></PRE>
<DL>
<DD>This method lets you determine the current key frame rate of a sequence.
	 <BR><BR><b> <a href="http://developer.apple.com/techpubs/quicktime/qtdevdocs/INMAC/QT/iqImageCompMgr.24.htm#iqImag145">QuickTime::GetCSequenceKeyFrameRate</a> </b><BR><BR>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>the current key frame rate</DL>
</DD>
</DL>
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<A NAME="setFrameNumber(int)"><!-- --></A><H3>
setFrameNumber</H3>
<PRE>
public void <B>setFrameNumber</B>(int&nbsp;frameNumber)
                    throws <A HREF="../../../quicktime/std/StdQTException.html">StdQTException</A></PRE>
<DL>
<DD>This method informs the compressor in use for this sequence that frames are
 being compressed out of order.
	 <BR><BR><b> <a href="http://developer.apple.com/techpubs/quicktime/qtdevdocs/INMAC/QT/iqImageCompMgr.24.htm#iqImag148">QuickTime::SetCSequenceFrameNumber</a> </b><BR><BR>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>frameNumber</CODE> - the frame number of the frame that is being compressed
                    out of sequence</DL>
</DD>
</DL>
<HR>

<A NAME="getFrameNumber()"><!-- --></A><H3>
getFrameNumber</H3>
<PRE>
public int <B>getFrameNumber</B>()
                   throws <A HREF="../../../quicktime/std/StdQTException.html">StdQTException</A></PRE>
<DL>
<DD>This method returns the current frame number of this sequence.
	 <BR><BR><b> <a href="http://developer.apple.com/techpubs/quicktime/qtdevdocs/INMAC/QT/iqImageCompMgr.24.htm#iqImag151">QuickTime::GetCSequenceFrameNumber</a> </b><BR><BR>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>the current frame number</DL>
</DD>
</DL>
<HR>

<A NAME="setPrev(quicktime.qd.QDGraphics, quicktime.qd.QDRect)"><!-- --></A><H3>
setPrev</H3>
<PRE>
public void <B>setPrev</B>(<A HREF="../../../quicktime/qd/QDGraphics.html">QDGraphics</A>&nbsp;prev,
                    <A HREF="../../../quicktime/qd/QDRect.html">QDRect</A>&nbsp;prevRect)
             throws <A HREF="../../../quicktime/std/StdQTException.html">StdQTException</A></PRE>
<DL>
<DD>This method allows the application to set the pixel map and boundary rectangle
 used by the previous frame in temporal compression. Note - this may change the maxCompressionSize
	 <BR><BR><b> <a href="http://developer.apple.com/techpubs/quicktime/qtdevdocs/INMAC/QT/iqImageCompMgr.24.htm#iqImag152">QuickTime::SetCSequencePrev</a> </b><BR><BR>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>prev</CODE> - a QDGraphics that contains the PixMap defining the new previous image. This may NOT be null.<DD><CODE>prevRect</CODE> - a QDRect defining the portion of the previous image to use for
                 temporal compression. May be to null</DL>
</DD>
</DL>
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<A NAME="prevBuffer()"><!-- --></A><H3>
prevBuffer</H3>
<PRE>
public <A HREF="../../../quicktime/qd/QDGraphics.html">QDGraphics</A> <B>prevBuffer</B>()
                      throws <A HREF="../../../quicktime/std/StdQTException.html">StdQTException</A></PRE>
<DL>
<DD>This method determines the location of the previous image buffer allocated
 by the compressor.
	 <BR><BR><b> <a href="http://developer.apple.com/techpubs/quicktime/qtdevdocs/INMAC/QT/iqImageCompMgr.24.htm#iqImag158">QuickTime::GetCSequencePrevBuffer</a> </b><BR><BR>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>a QDGraphics object which is the graphics world for the image buffer</DL>
</DD>
</DL>
<HR>

<A NAME="setDataRateParams(quicktime.std.image.DataRateParams)"><!-- --></A><H3>
setDataRateParams</H3>
<PRE>
public void <B>setDataRateParams</B>(<A HREF="../../../quicktime/std/image/DataRateParams.html">DataRateParams</A>&nbsp;params)
                       throws <A HREF="../../../quicktime/std/StdQTException.html">StdQTException</A></PRE>
<DL>
<DD>This method allows the application to set data rate parameters, which communicate
 information to compressors that can constrain compressed data in a particular
 sequence to a specific data rate.
	 <BR><BR><b> <a href="http://developer.apple.com/techpubs/quicktime/qtdevdocs/INMAC/QT/iqImageCompMgr.25.htm#iqImag162">QuickTime::SetCSequenceDataRateParams</a> </b><BR><BR>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>params</CODE> - a DataRateParams object<DT><B>See Also: </B><DD><A HREF="../../../quicktime/std/image/DataRateParams.html"><CODE>DataRateParams</CODE></A></DL>
</DD>
</DL>
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<A NAME="getDataRateParams()"><!-- --></A><H3>
getDataRateParams</H3>
<PRE>
public <A HREF="../../../quicktime/std/image/DataRateParams.html">DataRateParams</A> <B>getDataRateParams</B>()
                                 throws <A HREF="../../../quicktime/std/StdQTException.html">StdQTException</A></PRE>
<DL>
<DD>This method obtains the data rate parameters previously set with the
 setCDataRateParams method.
	 <BR><BR><b> <a href="http://developer.apple.com/techpubs/quicktime/qtdevdocs/INMAC/QT/iqImageCompMgr.25.htm#iqImag165">QuickTime::GetCSequenceDataRateParams</a> </b><BR><BR>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>a DataRateParams object, this object will not contain useful information
         unless the setCDataRateParams method was previously called</DL>
</DD>
</DL>
<HR>

<A NAME="setPreferredPacketSize(int)"><!-- --></A><H3>
setPreferredPacketSize</H3>
<PRE>
public void <B>setPreferredPacketSize</B>(int&nbsp;preferredPacketSize)
                            throws <A HREF="../../../quicktime/std/StdQTException.html">StdQTException</A></PRE>
<DL>
<DD>Sets the preferred packet size for a sequence. This was added in QuickTime 2.5
 to support video conferencing applications.
	 <BR><BR><b> <a href="http://developer.apple.com/techpubs/quicktime/qtdevdocs/REF/refImageCompMgr.15.htm#refIma333">QuickTime::SetCSequencePreferredPacketSize</a> </b><BR><BR>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>preferredPacketSize</CODE> - the preferred packet size in bytes</DL>
</DD>
</DL>
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