📄 buffer.html
字号:
<!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 Sat May 20 18:57:44 PDT 2000 --><TITLE>: Class Buffer</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 ID="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT ID="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="package-tree.html"><FONT ID="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../deprecated-list.html"><FONT ID="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../index-all.html"><FONT ID="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../help-doc.html"><FONT ID="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="../../javax/media/AudioDeviceUnavailableEvent.html"><B>PREV CLASS</B></A> <A HREF="../../javax/media/CachingControlEvent.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="Buffer.html" TARGET="_top"><B>NO FRAMES</B></A></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: INNER | <A HREF="#field_summary">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: <A HREF="#field_detail">FIELD</A> | <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">javax.media</FONT><BR>Class Buffer</H2><PRE>java.lang.Object | +--<B>javax.media.Buffer</B></PRE><HR><DL><DT>public class <B>Buffer</B><DT>extends java.lang.Object</DL><P>A <CODE>Buffer</CODE> is a media-data container that carries media data from one processing stage to the next inside of a <code>Player</code> or <code>Processor</code>. <CODE>Buffer</CODE> objects are also used to carry data between a buffer stream and its handler. <p> A <code>Buffer</code> object maintains information such as the time stamp, length, and <CODE>Format</CODE> of the data it carries, as well as any header information that might be required to process the media data.<P><DL><DT><B>Since: </B><DD>JMF 2.0</DD><DT><B>See Also: </B><DD><A HREF="../../javax/media/PlugIn.html"><CODE>PlugIn</CODE></A>, <A HREF="../../javax/media/protocol/PushBufferStream.html"><CODE>PushBufferStream</CODE></A>, <A HREF="../../javax/media/protocol/PullBufferStream.html"><CODE>PullBufferStream</CODE></A></DL><HR><P><!-- ======== INNER CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><A NAME="field_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Field Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected java.lang.Object</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/media/Buffer.html#data">data</A></B></CODE><BR> The object that actually holds the media data chunk for this <CODE>Buffer</CODE>.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected long</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/media/Buffer.html#duration">duration</A></B></CODE><BR> The duration of the data held in this <CODE>Buffer</CODE>, in nanoseconds.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/media/Buffer.html#FLAG_DISCARD">FLAG_DISCARD</A></B></CODE><BR> Indicates that the media data in this <CODE>Buffer</CODE> should be ignored.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/media/Buffer.html#FLAG_EOM">FLAG_EOM</A></B></CODE><BR> Indicates that this <CODE>Buffer</CODE> marks the end of media for the data stream.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/media/Buffer.html#FLAG_FLUSH">FLAG_FLUSH</A></B></CODE><BR> This is a marker bit used by the system.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/media/Buffer.html#FLAG_KEY_FRAME">FLAG_KEY_FRAME</A></B></CODE><BR> Indicates that this <CODE>Buffer</CODE> starts with a key frame.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/media/Buffer.html#FLAG_NO_DROP">FLAG_NO_DROP</A></B></CODE><BR> Indicates that this <CODE>Buffer</CODE> will not be dropped even if the frame is behind the presentation schedule.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/media/Buffer.html#FLAG_NO_SYNC">FLAG_NO_SYNC</A></B></CODE><BR> Indicates that this <CODE>Buffer</CODE> is not to be presented in sync with the scheduled presentation time.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/media/Buffer.html#FLAG_NO_WAIT">FLAG_NO_WAIT</A></B></CODE><BR> Indicates that this <CODE>Buffer</CODE> will not be waited on even if the frame is ahead of the presentation schedule.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/media/Buffer.html#FLAG_RELATIVE_TIME">FLAG_RELATIVE_TIME</A></B></CODE><BR> Indicates that the <CODE>Buffer</CODE> carries a time stamp that's in relative time units.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/media/Buffer.html#FLAG_RTP_MARKER">FLAG_RTP_MARKER</A></B></CODE><BR> This is a marker bit for RTP.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/media/Buffer.html#FLAG_SID">FLAG_SID</A></B></CODE><BR> Indicates that this <CODE>Buffer</CODE> contains only SID (silence information description) frames.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/media/Buffer.html#FLAG_SILENCE">FLAG_SILENCE</A></B></CODE><BR> Indicates that this <CODE>Buffer</CODE> contains only silence frames.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/media/Buffer.html#FLAG_SYSTEM_MARKER">FLAG_SYSTEM_MARKER</A></B></CODE><BR> This is a marker bit used by the system.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/media/Buffer.html#FLAG_SYSTEM_TIME">FLAG_SYSTEM_TIME</A></B></CODE><BR> Indicates that the <CODE>Buffer</CODE> carries a time stamp that's relative to the SystemTimeBase.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected int</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/media/Buffer.html#flags">flags</A></B></CODE><BR> A flag mask that describes the boolean attributes enabled for this <CODE>Buffer</CODE>.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected <A HREF="../../javax/media/Format.html">Format</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/media/Buffer.html#format">format</A></B></CODE><BR> The <CODE>Format</CODE> of the chunk of data in this <CODE>Buffer</CODE>.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected java.lang.Object</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/media/Buffer.html#header">header</A></B></CODE><BR> Header information (such as RTP header) for this data chunk.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected int</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/media/Buffer.html#length">length</A></B></CODE><BR> For array data type, states how many samples are valid in the array.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected int</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/media/Buffer.html#offset">offset</A></B></CODE><BR> For array data type, points to the starting point (offset) into the array where the valid data begins.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static long</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/media/Buffer.html#SEQUENCE_UNKNOWN">SEQUENCE_UNKNOWN</A></B></CODE><BR> The <code>getSequenceNumber</code> method returns this value if the sequence number is not known.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected long</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/media/Buffer.html#sequenceNumber">sequenceNumber</A></B></CODE><BR> The sequence number of this <CODE>Buffer</CODE>.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static long</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/media/Buffer.html#TIME_UNKNOWN">TIME_UNKNOWN</A></B></CODE><BR> The <code>getTimeStamp</code> method return this value if the time stamp of the media is not known.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected long</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/media/Buffer.html#timeStamp">timeStamp</A></B></CODE><BR> The time stamp of the data held in this <CODE>Buffer</CODE>, in nanoseconds.</TD></TR></TABLE>⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -