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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Frameset//EN""http://www.w3.org/TR/REC-html40/frameset.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc on Mon Jul 15 11:50:51 PDT 2002 --><TITLE>: Class TimeBase</TITLE><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"></HEAD><BODY BGCOLOR="white"><!-- ========== START OF NAVBAR ========== --><A NAME="navbar_top"><!-- --></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0"><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3"> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/TimeBase.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../quicktime/std/clocks/RateCallBack.html"><B>PREV CLASS</B></A> <A HREF="../../../quicktime/std/clocks/TimeCallBack.html"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../index.html" TARGET="_top"><B>FRAMES</B></A> <A HREF="TimeBase.html" TARGET="_top"><B>NO FRAMES</B></A></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: INNER | FIELD | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><!-- =========== END OF NAVBAR =========== --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">quicktime.std.clocks</FONT><BR>Class TimeBase</H2><PRE>java.lang.Object | +--<A HREF="../../../quicktime/QTObject.html">quicktime.QTObject</A> | +--<B>quicktime.std.clocks.TimeBase</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../quicktime/jdirect/InterfaceLib.html">InterfaceLib</A>, <A HREF="../../../quicktime/jdirect/PrimitivesLib.html">PrimitivesLib</A>, <A HREF="../../../quicktime/jdirect/QTStreamingLib.html">QTStreamingLib</A>, <A HREF="../../../quicktime/jdirect/QuickTimeLib.html">QuickTimeLib</A>, <A HREF="../../../quicktime/jdirect/SharedLibrary.html">SharedLibrary</A>, com.apple.jdirect.SharedLibrary</DD></DL><HR><DL><DT>public final class <B>TimeBase</B><DT>extends <A HREF="../../../quicktime/QTObject.html">QTObject</A><DT>implements <A HREF="../../../quicktime/jdirect/QuickTimeLib.html">QuickTimeLib</A>, <A HREF="../../../quicktime/jdirect/QTStreamingLib.html">QTStreamingLib</A></DL><P>The TimeBase defines the QuickTime time coordinate system of a movie. May be used for general timing purposes. refer to TimeBaseRecord in QuickTime <BR><P><HR><P><!-- ======== INNER CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><A NAME="fields_inherited_from_class_quicktime.jdirect.QuickTimeLib"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Fields inherited from interface quicktime.jdirect.<A HREF="../../../quicktime/jdirect/QuickTimeLib.html">QuickTimeLib</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../quicktime/jdirect/QuickTimeLib.html#JDirect_MacOSX">JDirect_MacOSX</A>, <A HREF="../../../quicktime/jdirect/QuickTimeLib.html#libraryInstance">libraryInstance</A>, <A HREF="../../../quicktime/jdirect/QuickTimeLib.html#name">name</A></CODE></TD></TR></TABLE> <A NAME="fields_inherited_from_class_quicktime.jdirect.QTStreamingLib"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Fields inherited from interface quicktime.jdirect.<A HREF="../../../quicktime/jdirect/QTStreamingLib.html">QTStreamingLib</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../quicktime/jdirect/QTStreamingLib.html#JDirect_MacOSX">JDirect_MacOSX</A>, <A HREF="../../../quicktime/jdirect/QTStreamingLib.html#libraryInstance">libraryInstance</A></CODE></TD></TR></TABLE> <!-- ======== CONSTRUCTOR SUMMARY ======== --><A NAME="constructor_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Constructor Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../quicktime/std/clocks/TimeBase.html#TimeBase()">TimeBase</A></B>()</CODE><BR> This allows your application to obtain a new time base.</TD></TR></TABLE> <!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Method Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static <A HREF="../../../quicktime/std/clocks/TimeBase.html">TimeBase</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/std/clocks/TimeBase.html#fromICMFrameTime(quicktime.std.image.ICMFrameTime)">fromICMFrameTime</A></B>(<A HREF="../../../quicktime/std/image/ICMFrameTime.html">ICMFrameTime</A> ft)</CODE><BR> </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static <A HREF="../../../quicktime/std/clocks/TimeBase.html">TimeBase</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/std/clocks/TimeBase.html#fromMovie(quicktime.std.movies.Movie)">fromMovie</A></B>(<A HREF="../../../quicktime/std/movies/Movie.html">Movie</A> m)</CODE><BR> This method allows you to get movie's TimeBase.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static <A HREF="../../../quicktime/std/clocks/TimeBase.html">TimeBase</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/std/clocks/TimeBase.html#fromPresentation(quicktime.streaming.Presentation)">fromPresentation</A></B>(<A HREF="../../../quicktime/streaming/Presentation.html">Presentation</A> p)</CODE><BR> Returns the Presentation's current time Base.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static <A HREF="../../../quicktime/std/clocks/TimeBase.html">TimeBase</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/std/clocks/TimeBase.html#fromQTCallBack(quicktime.std.clocks.QTCallBack)">fromQTCallBack</A></B>(<A HREF="../../../quicktime/std/clocks/QTCallBack.html">QTCallBack</A> cb)</CODE><BR> Retrieve the time base of a callback event.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static <A HREF="../../../quicktime/std/clocks/TimeBase.html">TimeBase</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/std/clocks/TimeBase.html#fromSequenceGrabber(quicktime.std.sg.SequenceGrabber)">fromSequenceGrabber</A></B>(<A HREF="../../../quicktime/std/sg/SequenceGrabber.html">SequenceGrabber</A> sg)</CODE><BR> Returns the SequenceGrabber's current time Base.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static <A HREF="../../../quicktime/std/clocks/TimeBase.html">TimeBase</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/std/clocks/TimeBase.html#fromTimeRecord(quicktime.std.clocks.TimeRecord)">fromTimeRecord</A></B>(<A HREF="../../../quicktime/std/clocks/TimeRecord.html">TimeRecord</A> tr)</CODE><BR> Return the TimeBase that is associated with this record.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static <A HREF="../../../quicktime/std/clocks/TimeBase.html">TimeBase</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/std/clocks/TimeBase.html#fromTunePlayer(quicktime.std.music.TunePlayer)">fromTunePlayer</A></B>(<A HREF="../../../quicktime/std/music/TunePlayer.html">TunePlayer</A> tp)</CODE><BR> Returns the TunePlayer's current time Base.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../quicktime/std/clocks/TimeBase.html">TimeBase</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/std/clocks/TimeBase.html#fromWallClock()">fromWallClock</A></B>()</CODE><BR> Returns the Time Base of the Wall Clock</TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> float</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/std/clocks/TimeBase.html#getEffectiveRate()">getEffectiveRate</A></B>()</CODE><BR> Useful when needed to make scheduling decisions based on the rate of a time base.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/std/clocks/TimeBase.html#getFlags()">getFlags</A></B>()</CODE><BR> This allows your application to obtain the contents of the control flags of a time base.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../quicktime/std/clocks/Clock.html">Clock</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/std/clocks/TimeBase.html#getMasterClock()">getMasterClock</A></B>()</CODE><BR> Determines the clock component that is assigned to a time base.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../quicktime/std/clocks/TimeBase.html">TimeBase</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/std/clocks/TimeBase.html#getMasterTimeBase()">getMasterTimeBase</A></B>()</CODE><BR> This allows your application to determine the master time base that is assigned to a time base.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> float</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/std/clocks/TimeBase.html#getRate()">getRate</A></B>()</CODE><BR> This allows your application to retrieve the rate of a time base.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/std/clocks/TimeBase.html#getStartTime()">getStartTime</A></B>()</CODE><BR> This allows you to determine the start time of a time base in the preferred scale of the time base <BR><BR><b> <a href="http://developer.apple.com/techpubs/quicktime/qtdevdocs/INMAC/QT/iqMovieToolbox.4e.htm#iqMovi1201">QuickTime::GetTimeBaseStartTime</a> </b><BR><BR></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/std/clocks/TimeBase.html#getStartTime(int)">getStartTime</A></B>(int scale)</CODE><BR> This allows you to determine the start time of a time base.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/std/clocks/TimeBase.html#getStatus(quicktime.std.clocks.TimeRecord)">getStatus</A></B>(<A HREF="../../../quicktime/std/clocks/TimeRecord.html">TimeRecord</A> unpinnedTime)</CODE><BR> This allows your application to retrieve status information from a time base.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/std/clocks/TimeBase.html#getStopTime()">getStopTime</A></B>()</CODE><BR> This allows you to determine the stop time of a time base in the preferred time scale of the TimeBase <BR><BR><b> <a href="http://developer.apple.com/techpubs/quicktime/qtdevdocs/INMAC/QT/iqMovieToolbox.4e.htm#iqMovi1209">QuickTime::GetTimeBaseStopTime</a> </b><BR><BR></TR><TR BGCOLOR="white" CLASS="TableRowColor">⌨️ 快捷键说明
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