buffer.html

JMF原版英文说明文档

<DL>
<DD>Checks whether or not this <CODE>Buffer</CODE> marks the end of the media stream.
 Even it <CODE>isEOM</CODE> returns <CODE>true</CODE>, the <CODE>Buffer</CODE> might still 
 contain valid data--check the length of the <CODE>Buffer</CODE>.
 <p>
 This method provides a convenient alternative to using <CODE>getFlags</CODE> 
 to check the EOM flag.<DD><DL>
<DT><B>Returns:</B><DD><CODE>true</CODE> if the EOM flag is enabled, <CODE>false</CODE> if it is not.<DT><B>See Also: </B><DD><A HREF="../../javax/media/Buffer.html#getFlags()"><CODE>getFlags()</CODE></A>, 
<A HREF="../../javax/media/Buffer.html#FLAG_EOM"><CODE>FLAG_EOM</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="setEOM(boolean)"><!-- --></A><H3>
setEOM</H3>
<PRE>
public void <B>setEOM</B>(boolean&nbsp;eom)</PRE>
<DL>
<DD>Sets the EOM flag for this <CODE>Buffer</CODE>. If the EOM flag is enabled, this
 is the last <CODE>Buffer</CODE> in the media stream.
 <p>
 This method provides a convenient alternative to using <CODE>setFlags</CODE> 
 to enable or disable the EOM flag.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>eom</CODE> - A boolean value that contains the EOM status of the <CODE>Buffer</CODE>. Set to 
 <CODE>true</CODE> to enable the EOM flag, <CODE>false</CODE> to disable the flag.<DT><B>See Also: </B><DD><A HREF="../../javax/media/Buffer.html#setFlags(int)"><CODE>setFlags(int)</CODE></A>, 
<A HREF="../../javax/media/Buffer.html#FLAG_EOM"><CODE>FLAG_EOM</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="isDiscard()"><!-- --></A><H3>
isDiscard</H3>
<PRE>
public boolean <B>isDiscard</B>()</PRE>
<DL>
<DD>Checks whether or not this <CODE>Buffer</CODE> is to be discarded.
 <p>
 This method provides a convenient alternative to using <CODE>getFlags</CODE> 
 to check the DISCARD flag.<DD><DL>
<DT><B>Returns:</B><DD><CODE>true</CODE> if the DISCARD flag is enabled, <CODE>false</CODE> if it is not.<DT><B>See Also: </B><DD><A HREF="../../javax/media/Buffer.html#getFlags()"><CODE>getFlags()</CODE></A>, 
<A HREF="../../javax/media/Buffer.html#FLAG_DISCARD"><CODE>FLAG_DISCARD</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="setDiscard(boolean)"><!-- --></A><H3>
setDiscard</H3>
<PRE>
public void <B>setDiscard</B>(boolean&nbsp;discard)</PRE>
<DL>
<DD>Sets the DISCARD flag for this <CODE>Buffer</CODE>. If the DISCARD flag is enabled, 
 this <CODE>Buffer</CODE> is to be discarded.
 <p>
 This method provides a convenient alternative to using <CODE>setFlags</CODE> 
 to enable or disable the DISCARD flag.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>discard</CODE> - A boolean value that contains the DISCARD status of the <CODE>Buffer</CODE>. Set to 
 <CODE>true</CODE> to enable the EOM flag, <CODE>false</CODE> to disable the flag.<DT><B>See Also: </B><DD><A HREF="../../javax/media/Buffer.html#setFlags(int)"><CODE>setFlags(int)</CODE></A>, 
<A HREF="../../javax/media/Buffer.html#FLAG_DISCARD"><CODE>FLAG_DISCARD</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getData()"><!-- --></A><H3>
getData</H3>
<PRE>
public java.lang.Object <B>getData</B>()</PRE>
<DL>
<DD>Gets the internal data object that holds the media chunk contained in this <CODE>Buffer</CODE>.<DD><DL>
<DT><B>Returns:</B><DD>The data object that holds the media chunk for this <CODE>Buffer</CODE>.
 It can be an array type (such as byte[]) or any other type
 of object. Use <code>instanceOf</code> to determine what type it is.<DT><B>See Also: </B><DD><A HREF="../../javax/media/Buffer.html#data"><CODE>data</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="setData(java.lang.Object)"><!-- --></A><H3>
setData</H3>
<PRE>
public void <B>setData</B>(java.lang.Object&nbsp;data)</PRE>
<DL>
<DD>Sets the internal data object that holds the media chunk.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>data</CODE> - The data object that holds the media data chunk for this <CODE>Buffer</CODE>.
 It can be an array type (such as byte[]) or any other type
 of object.<DT><B>See Also: </B><DD><A HREF="../../javax/media/Buffer.html#data"><CODE>data</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getHeader()"><!-- --></A><H3>
getHeader</H3>
<PRE>
public java.lang.Object <B>getHeader</B>()</PRE>
<DL>
<DD>Gets the header information for the media chunk contained in this <CODE>Buffer</CODE>.<DD><DL>
<DT><B>Returns:</B><DD>The object that holds the header information. Use <code>instanceOf</code> 
 to determine what type the header object is.<DT><B>See Also: </B><DD><A HREF="../../javax/media/Buffer.html#header"><CODE>header</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="setHeader(java.lang.Object)"><!-- --></A><H3>
setHeader</H3>
<PRE>
public void <B>setHeader</B>(java.lang.Object&nbsp;header)</PRE>
<DL>
<DD>Sets the header information for the media chunk.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>header</CODE> - The header object that holds the media data chunk for this <CODE>Buffer</CODE>.<DT><B>See Also: </B><DD><A HREF="../../javax/media/Buffer.html#header"><CODE>header</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getLength()"><!-- --></A><H3>
getLength</H3>
<PRE>
public int <B>getLength</B>()</PRE>
<DL>
<DD>Gets the length of the valid data in this <CODE>Buffer</CODE> if the data is held in an array.<DD><DL>
<DT><B>Returns:</B><DD>The length of the valid data in the data array that holds the media chunk 
 for this <CODE>Buffer</CODE>.<DT><B>See Also: </B><DD><A HREF="../../javax/media/Buffer.html#length"><CODE>length</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="setLength(int)"><!-- --></A><H3>
setLength</H3>
<PRE>
public void <B>setLength</B>(int&nbsp;length)</PRE>
<DL>
<DD>Sets the length of the valid data stored in this <CODE>Buffer</CODE> if the data 
 is held in an array.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>length</CODE> - The length of the valid data in the data array that holds the 
 media chunk for this <CODE>Buffer</CODE>.<DT><B>See Also: </B><DD><A HREF="../../javax/media/Buffer.html#length"><CODE>length</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getOffset()"><!-- --></A><H3>
getOffset</H3>
<PRE>
public int <B>getOffset</B>()</PRE>
<DL>
<DD>If the media chunk for this <CODE>Buffer</CODE> is held in an array, gets the 
 offset into the data array where the valid data begins.</DL>
<HR>

<A NAME="setOffset(int)"><!-- --></A><H3>
setOffset</H3>
<PRE>
public void <B>setOffset</B>(int&nbsp;offset)</PRE>
<DL>
<DD>If the media chunk for this <CODE>Buffer</CODE> is held in an array, 
 sets the  offset into the array where the valid data begins.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>offset</CODE> - The starting point for the valid data.<DT><B>See Also: </B><DD><A HREF="../../javax/media/Buffer.html#offset"><CODE>offset</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getTimeStamp()"><!-- --></A><H3>
getTimeStamp</H3>
<PRE>
public long <B>getTimeStamp</B>()</PRE>
<DL>
<DD>Gets the time stamp of this <CODE>Buffer</CODE>.<DD><DL>
<DT><B>Returns:</B><DD>The <CODE>Buffer</CODE> time stamp, in nanoseconds.<DT><B>See Also: </B><DD><A HREF="../../javax/media/Buffer.html#timeStamp"><CODE>timeStamp</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="setTimeStamp(long)"><!-- --></A><H3>
setTimeStamp</H3>
<PRE>
public void <B>setTimeStamp</B>(long&nbsp;timeStamp)</PRE>
<DL>
<DD>Sets the time stamp of this <CODE>Buffer</CODE>.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>timeStamp</CODE> - The time stamp for the <CODE>Buffer</CODE>, in nanoseconds.<DT><B>See Also: </B><DD><A HREF="../../javax/media/Buffer.html#timeStamp"><CODE>timeStamp</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getDuration()"><!-- --></A><H3>
getDuration</H3>
<PRE>
public long <B>getDuration</B>()</PRE>
<DL>
<DD>Gets the duration of this <CODE>Buffer</CODE>.<DD><DL>
<DT><B>Returns:</B><DD>The <CODE>Buffer</CODE> duration, in nanoseconds.<DT><B>See Also: </B><DD><A HREF="../../javax/media/Buffer.html#duration"><CODE>duration</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="setDuration(long)"><!-- --></A><H3>
setDuration</H3>
<PRE>
public void <B>setDuration</B>(long&nbsp;duration)</PRE>
<DL>
<DD>Sets the duration of this <CODE>Buffer</CODE>.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>duration</CODE> - The duration for the <CODE>Buffer</CODE>, in nanoseconds.<DT><B>See Also: </B><DD><A HREF="../../javax/media/Buffer.html#duration"><CODE>duration</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="setSequenceNumber(long)"><!-- --></A><H3>
setSequenceNumber</H3>
<PRE>
public void <B>setSequenceNumber</B>(long&nbsp;number)</PRE>
<DL>
<DD>Sets the sequence number of this <CODE>Buffer</CODE>. Sequence numbers
 increase or decrease by 1 for each sequential <CODE>Buffer</CODE>, indicating
 the order in which the data is to be processed. Can be used
 to identify lost samples of data.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>number</CODE> - The sequence number for the <CODE>Buffer</CODE>.<DT><B>See Also: </B><DD><A HREF="../../javax/media/Buffer.html#sequenceNumber"><CODE>sequenceNumber</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getSequenceNumber()"><!-- --></A><H3>
getSequenceNumber</H3>
<PRE>
public long <B>getSequenceNumber</B>()</PRE>
<DL>
<DD>Gets the sequence number of this <CODE>Buffer</CODE>.<DD><DL>
<DT><B>Returns:</B><DD>The sequence number of this <CODE>Buffer</CODE>.<DT><B>See Also: </B><DD><A HREF="../../javax/media/Buffer.html#sequenceNumber"><CODE>sequenceNumber</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="copy(javax.media.Buffer)"><!-- --></A><H3>
copy</H3>
<PRE>
public void <B>copy</B>(<A HREF="../../javax/media/Buffer.html">Buffer</A>&nbsp;buffer)</PRE>
<DL>
<DD>Copy the attributes from the specified <CODE>Buffer</CODE> into this
 <CODE>Buffer</CODE><DD><DL>
<DT><B>Parameters:</B><DD><CODE>buffer</CODE> - The input <CODE>Buffer</code> the copy the attributes from.</DL>
</DD>
</DL>
<HR>

<A NAME="clone()"><!-- --></A><H3>
clone</H3>
<PRE>
public java.lang.Object <B>clone</B>()</PRE>
<DL>
<DD>Clone a buffer.<DD><DL>
<DT><B>Overrides:</B><DD>clone in class java.lang.Object</DL>
</DD>
</DL>
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