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| org.libjpegturbo.turbojpeg</FONT> |
| <BR> |
| Class TJDecompressor</H2> |
| <PRE> |
| java.lang.Object |
| <IMG SRC="../../../resources/inherit.gif" ALT="extended by "><B>org.libjpegturbo.turbojpeg.TJDecompressor</B> |
| </PRE> |
| <DL> |
| <DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../org/libjpegturbo/turbojpeg/TJTransformer.html" title="class in org.libjpegturbo.turbojpeg">TJTransformer</A></DD> |
| </DL> |
| <HR> |
| <DL> |
| <DT><PRE>public class <B>TJDecompressor</B><DT>extends java.lang.Object</DL> |
| </PRE> |
| |
| <P> |
| TurboJPEG decompressor |
| <P> |
| |
| <P> |
| <HR> |
| |
| <P> |
| <!-- =========== FIELD SUMMARY =========== --> |
| |
| <A NAME="field_summary"><!-- --></A> |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
| <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
| <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
| <B>Field Summary</B></FONT></TH> |
| </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="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#handle">handle</A></B></CODE> |
| |
| <BR> |
| </TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE>protected byte[]</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#jpegBuf">jpegBuf</A></B></CODE> |
| |
| <BR> |
| </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="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#jpegBufSize">jpegBufSize</A></B></CODE> |
| |
| <BR> |
| </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="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#jpegHeight">jpegHeight</A></B></CODE> |
| |
| <BR> |
| </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="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#jpegSubsamp">jpegSubsamp</A></B></CODE> |
| |
| <BR> |
| </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="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#jpegWidth">jpegWidth</A></B></CODE> |
| |
| <BR> |
| </TD> |
| </TR> |
| </TABLE> |
| |
| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
| |
| <A NAME="constructor_summary"><!-- --></A> |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
| <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
| <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
| <B>Constructor Summary</B></FONT></TH> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#TJDecompressor()">TJDecompressor</A></B>()</CODE> |
| |
| <BR> |
| Create a TurboJPEG decompresssor instance.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#TJDecompressor(byte[])">TJDecompressor</A></B>(byte[] jpegImage)</CODE> |
| |
| <BR> |
| Create a TurboJPEG decompressor instance and associate the JPEG image |
| stored in <code>jpegImage</code> with the newly created instance.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#TJDecompressor(byte[], int)">TJDecompressor</A></B>(byte[] jpegImage, |
| int imageSize)</CODE> |
| |
| <BR> |
| Create a TurboJPEG decompressor instance and associate the JPEG image |
| of length <code>imageSize</code> bytes stored in <code>jpegImage</code> |
| with the newly created instance.</TD> |
| </TR> |
| </TABLE> |
| |
| <!-- ========== METHOD SUMMARY =========== --> |
| |
| <A NAME="method_summary"><!-- --></A> |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
| <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
| <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
| <B>Method Summary</B></FONT></TH> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> void</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#close()">close</A></B>()</CODE> |
| |
| <BR> |
| Free the native structures associated with this decompressor instance.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> void</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#decompress(java.awt.image.BufferedImage, int)">decompress</A></B>(java.awt.image.BufferedImage dstImage, |
| int flags)</CODE> |
| |
| <BR> |
| Decompress the JPEG source image associated with this decompressor |
| instance and output a decompressed image to the given |
| <code>BufferedImage</code> instance.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> void</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#decompress(byte[], int, int, int, int, int)">decompress</A></B>(byte[] dstBuf, |
| int desiredWidth, |
| int pitch, |
| int desiredHeight, |
| int pixelFormat, |
| int flags)</CODE> |
| |
| <BR> |
| <B>Deprecated.</B> <I>Use |
| <A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#decompress(byte[], int, int, int, int, int, int, int)"><CODE>decompress(byte[], int, int, int, int, int, int, int)</CODE></A> instead.</I></TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> void</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#decompress(byte[], int, int, int, int, int, int, int)">decompress</A></B>(byte[] dstBuf, |
| int x, |
| int y, |
| int desiredWidth, |
| int pitch, |
| int desiredHeight, |
| int pixelFormat, |
| int flags)</CODE> |
| |
| <BR> |
| Decompress the JPEG source image associated with this decompressor |
| instance and output a decompressed image to the given destination buffer.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> void</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#decompress(int[], int, int, int, int, int, int, int)">decompress</A></B>(int[] dstBuf, |
| int x, |
| int y, |
| int desiredWidth, |
| int stride, |
| int desiredHeight, |
| int pixelFormat, |
| int flags)</CODE> |
| |
| <BR> |
| Decompress the JPEG source image associated with this decompressor |
| instance and output a decompressed image to the given destination buffer.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> java.awt.image.BufferedImage</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#decompress(int, int, int, int)">decompress</A></B>(int desiredWidth, |
| int desiredHeight, |
| int bufferedImageType, |
| int flags)</CODE> |
| |
| <BR> |
| Decompress the JPEG source image associated with this decompressor |
| instance and return a <code>BufferedImage</code> instance containing the |
| decompressed image.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> byte[]</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#decompress(int, int, int, int, int)">decompress</A></B>(int desiredWidth, |
| int pitch, |
| int desiredHeight, |
| int pixelFormat, |
| int flags)</CODE> |
| |
| <BR> |
| Decompress the JPEG source image associated with this decompressor |
| instance and return a buffer containing the decompressed image.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> void</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#decompressToYUV(byte[], int)">decompressToYUV</A></B>(byte[] dstBuf, |
| int flags)</CODE> |
| |
| <BR> |
| Decompress the JPEG source image associated with this decompressor |
| instance and output a YUV planar image to the given destination buffer.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> byte[]</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#decompressToYUV(int)">decompressToYUV</A></B>(int flags)</CODE> |
| |
| <BR> |
| Decompress the JPEG source image associated with this decompressor |
| instance and return a buffer containing a YUV planar image.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE>protected void</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#finalize()">finalize</A></B>()</CODE> |
| |
| <BR> |
| </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="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#getHeight()">getHeight</A></B>()</CODE> |
| |
| <BR> |
| Returns the height of the JPEG image associated with this decompressor |
| instance.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> byte[]</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#getJPEGBuf()">getJPEGBuf</A></B>()</CODE> |
| |
| <BR> |
| Returns the JPEG image buffer associated with this decompressor instance.</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="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#getJPEGSize()">getJPEGSize</A></B>()</CODE> |
| |
| <BR> |
| Returns the size of the JPEG image (in bytes) associated with this |
| decompressor instance.</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="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#getScaledHeight(int, int)">getScaledHeight</A></B>(int desiredWidth, |
| int desiredHeight)</CODE> |
| |
| <BR> |
| Returns the height of the largest scaled-down image that the TurboJPEG |
| decompressor can generate without exceeding the desired image width and |
| height.</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="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#getScaledWidth(int, int)">getScaledWidth</A></B>(int desiredWidth, |
| int desiredHeight)</CODE> |
| |
| <BR> |
| Returns the width of the largest scaled-down image that the TurboJPEG |
| decompressor can generate without exceeding the desired image width and |
| height.</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="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#getSubsamp()">getSubsamp</A></B>()</CODE> |
| |
| <BR> |
| Returns the level of chrominance subsampling used in the JPEG image |
| associated with this decompressor instance.</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="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#getWidth()">getWidth</A></B>()</CODE> |
| |
| <BR> |
| Returns the width of the JPEG image associated with this decompressor |
| instance.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> void</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#setJPEGImage(byte[], int)">setJPEGImage</A></B>(byte[] jpegImage, |
| int imageSize)</CODE> |
| |
| <BR> |
| Associate the JPEG image of length <code>imageSize</code> bytes stored in |
| <code>jpegImage</code> with this decompressor instance.</TD> |
| </TR> |
| </TABLE> |
| <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A> |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
| <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> |
| <TH ALIGN="left"><B>Methods inherited from class java.lang.Object</B></TH> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD><CODE>clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD> |
| </TR> |
| </TABLE> |
| |
| <P> |
| |
| <!-- ============ FIELD DETAIL =========== --> |
| |
| <A NAME="field_detail"><!-- --></A> |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
| <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
| <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> |
| <B>Field Detail</B></FONT></TH> |
| </TR> |
| </TABLE> |
| |
| <A NAME="handle"><!-- --></A><H3> |
| handle</H3> |
| <PRE> |
| protected long <B>handle</B></PRE> |
| <DL> |
| <DL> |
| </DL> |
| </DL> |
| <HR> |
| |
| <A NAME="jpegBuf"><!-- --></A><H3> |
| jpegBuf</H3> |
| <PRE> |
| protected byte[] <B>jpegBuf</B></PRE> |
| <DL> |
| <DL> |
| </DL> |
| </DL> |
| <HR> |
| |
| <A NAME="jpegBufSize"><!-- --></A><H3> |
| jpegBufSize</H3> |
| <PRE> |
| protected int <B>jpegBufSize</B></PRE> |
| <DL> |
| <DL> |
| </DL> |
| </DL> |
| <HR> |
| |
| <A NAME="jpegWidth"><!-- --></A><H3> |
| jpegWidth</H3> |
| <PRE> |
| protected int <B>jpegWidth</B></PRE> |
| <DL> |
| <DL> |
| </DL> |
| </DL> |
| <HR> |
| |
| <A NAME="jpegHeight"><!-- --></A><H3> |
| jpegHeight</H3> |
| <PRE> |
| protected int <B>jpegHeight</B></PRE> |
| <DL> |
| <DL> |
| </DL> |
| </DL> |
| <HR> |
| |
| <A NAME="jpegSubsamp"><!-- --></A><H3> |
| jpegSubsamp</H3> |
| <PRE> |
| protected int <B>jpegSubsamp</B></PRE> |
| <DL> |
| <DL> |
| </DL> |
| </DL> |
| |
| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
| |
| <A NAME="constructor_detail"><!-- --></A> |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
| <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
| <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> |
| <B>Constructor Detail</B></FONT></TH> |
| </TR> |
| </TABLE> |
| |
| <A NAME="TJDecompressor()"><!-- --></A><H3> |
| TJDecompressor</H3> |
| <PRE> |
| public <B>TJDecompressor</B>() |
| throws java.lang.Exception</PRE> |
| <DL> |
| <DD>Create a TurboJPEG decompresssor instance. |
| <P> |
| <DL> |
| |
| <DT><B>Throws:</B> |
| <DD><CODE>java.lang.Exception</CODE></DL> |
| </DL> |
| <HR> |
| |
| <A NAME="TJDecompressor(byte[])"><!-- --></A><H3> |
| TJDecompressor</H3> |
| <PRE> |
| public <B>TJDecompressor</B>(byte[] jpegImage) |
| throws java.lang.Exception</PRE> |
| <DL> |
| <DD>Create a TurboJPEG decompressor instance and associate the JPEG image |
| stored in <code>jpegImage</code> with the newly created instance. |
| <P> |
| <DL> |
| <DT><B>Parameters:</B><DD><CODE>jpegImage</CODE> - JPEG image buffer (size of the JPEG image is assumed to |
| be the length of the array) |
| <DT><B>Throws:</B> |
| <DD><CODE>java.lang.Exception</CODE></DL> |
| </DL> |
| <HR> |
| |
| <A NAME="TJDecompressor(byte[], int)"><!-- --></A><H3> |
| TJDecompressor</H3> |
| <PRE> |
| public <B>TJDecompressor</B>(byte[] jpegImage, |
| int imageSize) |
| throws java.lang.Exception</PRE> |
| <DL> |
| <DD>Create a TurboJPEG decompressor instance and associate the JPEG image |
| of length <code>imageSize</code> bytes stored in <code>jpegImage</code> |
| with the newly created instance. |
| <P> |
| <DL> |
| <DT><B>Parameters:</B><DD><CODE>jpegImage</CODE> - JPEG image buffer<DD><CODE>imageSize</CODE> - size of the JPEG image (in bytes) |
| <DT><B>Throws:</B> |
| <DD><CODE>java.lang.Exception</CODE></DL> |
| </DL> |
| |
| <!-- ============ METHOD DETAIL ========== --> |
| |
| <A NAME="method_detail"><!-- --></A> |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
| <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
| <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> |
| <B>Method Detail</B></FONT></TH> |
| </TR> |
| </TABLE> |
| |
| <A NAME="setJPEGImage(byte[], int)"><!-- --></A><H3> |
| setJPEGImage</H3> |
| <PRE> |
| public void <B>setJPEGImage</B>(byte[] jpegImage, |
| int imageSize) |
| throws java.lang.Exception</PRE> |
| <DL> |
| <DD>Associate the JPEG image of length <code>imageSize</code> bytes stored in |
| <code>jpegImage</code> with this decompressor instance. This image will |
| be used as the source image for subsequent decompress operations. |
| <P> |
| <DD><DL> |
| <DT><B>Parameters:</B><DD><CODE>jpegImage</CODE> - JPEG image buffer<DD><CODE>imageSize</CODE> - size of the JPEG image (in bytes) |
| <DT><B>Throws:</B> |
| <DD><CODE>java.lang.Exception</CODE></DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="getWidth()"><!-- --></A><H3> |
| getWidth</H3> |
| <PRE> |
| public int <B>getWidth</B>() |
| throws java.lang.Exception</PRE> |
| <DL> |
| <DD>Returns the width of the JPEG image associated with this decompressor |
| instance. |
| <P> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD>the width of the JPEG image associated with this decompressor |
| instance |
| <DT><B>Throws:</B> |
| <DD><CODE>java.lang.Exception</CODE></DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="getHeight()"><!-- --></A><H3> |
| getHeight</H3> |
| <PRE> |
| public int <B>getHeight</B>() |
| throws java.lang.Exception</PRE> |
| <DL> |
| <DD>Returns the height of the JPEG image associated with this decompressor |
| instance. |
| <P> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD>the height of the JPEG image associated with this decompressor |
| instance |
| <DT><B>Throws:</B> |
| <DD><CODE>java.lang.Exception</CODE></DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="getSubsamp()"><!-- --></A><H3> |
| getSubsamp</H3> |
| <PRE> |
| public int <B>getSubsamp</B>() |
| throws java.lang.Exception</PRE> |
| <DL> |
| <DD>Returns the level of chrominance subsampling used in the JPEG image |
| associated with this decompressor instance. See <A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html" title="class in org.libjpegturbo.turbojpeg"><CODE>TJ.SAMP_*</CODE></A>. |
| <P> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD>the level of chrominance subsampling used in the JPEG image |
| associated with this decompressor instance |
| <DT><B>Throws:</B> |
| <DD><CODE>java.lang.Exception</CODE></DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="getJPEGBuf()"><!-- --></A><H3> |
| getJPEGBuf</H3> |
| <PRE> |
| public byte[] <B>getJPEGBuf</B>() |
| throws java.lang.Exception</PRE> |
| <DL> |
| <DD>Returns the JPEG image buffer associated with this decompressor instance. |
| <P> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD>the JPEG image buffer associated with this decompressor instance |
| <DT><B>Throws:</B> |
| <DD><CODE>java.lang.Exception</CODE></DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="getJPEGSize()"><!-- --></A><H3> |
| getJPEGSize</H3> |
| <PRE> |
| public int <B>getJPEGSize</B>() |
| throws java.lang.Exception</PRE> |
| <DL> |
| <DD>Returns the size of the JPEG image (in bytes) associated with this |
| decompressor instance. |
| <P> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD>the size of the JPEG image (in bytes) associated with this |
| decompressor instance |
| <DT><B>Throws:</B> |
| <DD><CODE>java.lang.Exception</CODE></DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="getScaledWidth(int, int)"><!-- --></A><H3> |
| getScaledWidth</H3> |
| <PRE> |
| public int <B>getScaledWidth</B>(int desiredWidth, |
| int desiredHeight) |
| throws java.lang.Exception</PRE> |
| <DL> |
| <DD>Returns the width of the largest scaled-down image that the TurboJPEG |
| decompressor can generate without exceeding the desired image width and |
| height. |
| <P> |
| <DD><DL> |
| <DT><B>Parameters:</B><DD><CODE>desiredWidth</CODE> - desired width (in pixels) of the decompressed image. |
| Setting this to 0 is the same as setting it to the width of the JPEG image |
| (in other words, the width will not be considered when determining the |
| scaled image size.)<DD><CODE>desiredHeight</CODE> - desired height (in pixels) of the decompressed image. |
| Setting this to 0 is the same as setting it to the height of the JPEG |
| image (in other words, the height will not be considered when determining |
| the scaled image size.) |
| <DT><B>Returns:</B><DD>the width of the largest scaled-down image that the TurboJPEG |
| decompressor can generate without exceeding the desired image width and |
| height |
| <DT><B>Throws:</B> |
| <DD><CODE>java.lang.Exception</CODE></DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="getScaledHeight(int, int)"><!-- --></A><H3> |
| getScaledHeight</H3> |
| <PRE> |
| public int <B>getScaledHeight</B>(int desiredWidth, |
| int desiredHeight) |
| throws java.lang.Exception</PRE> |
| <DL> |
| <DD>Returns the height of the largest scaled-down image that the TurboJPEG |
| decompressor can generate without exceeding the desired image width and |
| height. |
| <P> |
| <DD><DL> |
| <DT><B>Parameters:</B><DD><CODE>desiredWidth</CODE> - desired width (in pixels) of the decompressed image. |
| Setting this to 0 is the same as setting it to the width of the JPEG image |
| (in other words, the width will not be considered when determining the |
| scaled image size.)<DD><CODE>desiredHeight</CODE> - desired height (in pixels) of the decompressed image. |
| Setting this to 0 is the same as setting it to the height of the JPEG |
| image (in other words, the height will not be considered when determining |
| the scaled image size.) |
| <DT><B>Returns:</B><DD>the height of the largest scaled-down image that the TurboJPEG |
| decompressor can generate without exceeding the desired image width and |
| height |
| <DT><B>Throws:</B> |
| <DD><CODE>java.lang.Exception</CODE></DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="decompress(byte[], int, int, int, int, int, int, int)"><!-- --></A><H3> |
| decompress</H3> |
| <PRE> |
| public void <B>decompress</B>(byte[] dstBuf, |
| int x, |
| int y, |
| int desiredWidth, |
| int pitch, |
| int desiredHeight, |
| int pixelFormat, |
| int flags) |
| throws java.lang.Exception</PRE> |
| <DL> |
| <DD>Decompress the JPEG source image associated with this decompressor |
| instance and output a decompressed image to the given destination buffer. |
| <P> |
| <DD><DL> |
| <DT><B>Parameters:</B><DD><CODE>dstBuf</CODE> - buffer that will receive the decompressed image. This |
| buffer should normally be <code>pitch * scaledHeight</code> bytes in size, |
| where <code>scaledHeight</code> can be determined by calling <code> |
| scalingFactor.<A HREF="../../../org/libjpegturbo/turbojpeg/TJScalingFactor.html#getScaled(int)"><CODE>getScaled</CODE></A>(jpegHeight) |
| </code> with one of the scaling factors returned from <A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html#getScalingFactors()"><CODE>TJ.getScalingFactors()</CODE></A> or by calling <A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#getScaledHeight(int, int)"><CODE>getScaledHeight(int, int)</CODE></A>. However, |
| the buffer may also be larger than the dimensions of the JPEG image, in |
| which case the <code>x</code>, <code>y</code>, and <code>pitch</code> |
| parameters can be used to specify the region into which the JPEG image |
| should be decompressed.<DD><CODE>x</CODE> - x offset (in pixels) of the region into which the JPEG image |
| should be decompressed, relative to the start of <code>dstBuf</code>.<DD><CODE>y</CODE> - y offset (in pixels) of the region into which the JPEG image |
| should be decompressed, relative to the start of <code>dstBuf</code>.<DD><CODE>desiredWidth</CODE> - desired width (in pixels) of the decompressed image |
| (or image region.) If the desired image dimensions are different than the |
| dimensions of the JPEG image being decompressed, then TurboJPEG will use |
| scaling in the JPEG decompressor to generate the largest possible image |
| that will fit within the desired dimensions. Setting this to 0 is the |
| same as setting it to the width of the JPEG image (in other words, the |
| width will not be considered when determining the scaled image size.)<DD><CODE>pitch</CODE> - bytes per line of the destination image. Normally, this |
| should be set to <code>scaledWidth * TJ.pixelSize(pixelFormat)</code> if |
| the decompressed image is unpadded, but you can use this to, for instance, |
| pad each line of the decompressed image to a 4-byte boundary or to |
| decompress the JPEG image into a region of a larger image. NOTE: |
| <code>scaledWidth</code> can be determined by calling <code> |
| scalingFactor.<A HREF="../../../org/libjpegturbo/turbojpeg/TJScalingFactor.html#getScaled(int)"><CODE>getScaled</CODE></A>(jpegWidth) |
| </code> or by calling <A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#getScaledWidth(int, int)"><CODE>getScaledWidth(int, int)</CODE></A>. Setting this parameter to |
| 0 is the equivalent of setting it to <code>scaledWidth * |
| TJ.pixelSize(pixelFormat)</code>.<DD><CODE>desiredHeight</CODE> - desired height (in pixels) of the decompressed image |
| (or image region.) If the desired image dimensions are different than the |
| dimensions of the JPEG image being decompressed, then TurboJPEG will use |
| scaling in the JPEG decompressor to generate the largest possible image |
| that will fit within the desired dimensions. Setting this to 0 is the |
| same as setting it to the height of the JPEG image (in other words, the |
| height will not be considered when determining the scaled image size.)<DD><CODE>pixelFormat</CODE> - pixel format of the decompressed/decoded image (one of |
| <A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html#PF_RGB"><CODE>TJ.PF_*</CODE></A>)<DD><CODE>flags</CODE> - the bitwise OR of one or more of |
| <A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html#FLAG_BOTTOMUP"><CODE>TJ.FLAG_*</CODE></A> |
| <DT><B>Throws:</B> |
| <DD><CODE>java.lang.Exception</CODE></DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="decompress(byte[], int, int, int, int, int)"><!-- --></A><H3> |
| decompress</H3> |
| <PRE> |
| <FONT SIZE="-1">@Deprecated |
| </FONT>public void <B>decompress</B>(byte[] dstBuf, |
| int desiredWidth, |
| int pitch, |
| int desiredHeight, |
| int pixelFormat, |
| int flags) |
| throws java.lang.Exception</PRE> |
| <DL> |
| <DD><B>Deprecated.</B> <I>Use |
| <A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#decompress(byte[], int, int, int, int, int, int, int)"><CODE>decompress(byte[], int, int, int, int, int, int, int)</CODE></A> instead.</I> |
| <P> |
| <DD><DL> |
| |
| <DT><B>Throws:</B> |
| <DD><CODE>java.lang.Exception</CODE></DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="decompress(int, int, int, int, int)"><!-- --></A><H3> |
| decompress</H3> |
| <PRE> |
| public byte[] <B>decompress</B>(int desiredWidth, |
| int pitch, |
| int desiredHeight, |
| int pixelFormat, |
| int flags) |
| throws java.lang.Exception</PRE> |
| <DL> |
| <DD>Decompress the JPEG source image associated with this decompressor |
| instance and return a buffer containing the decompressed image. |
| <P> |
| <DD><DL> |
| <DT><B>Parameters:</B><DD><CODE>desiredWidth</CODE> - see |
| <A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#decompress(byte[], int, int, int, int, int, int, int)"><CODE>decompress(byte[], int, int, int, int, int, int, int)</CODE></A> |
| for description<DD><CODE>pitch</CODE> - see |
| <A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#decompress(byte[], int, int, int, int, int, int, int)"><CODE>decompress(byte[], int, int, int, int, int, int, int)</CODE></A> |
| for description<DD><CODE>desiredHeight</CODE> - see |
| <A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#decompress(byte[], int, int, int, int, int, int, int)"><CODE>decompress(byte[], int, int, int, int, int, int, int)</CODE></A> |
| for description<DD><CODE>pixelFormat</CODE> - pixel format of the decompressed image (one of |
| <A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html#PF_RGB"><CODE>TJ.PF_*</CODE></A>)<DD><CODE>flags</CODE> - the bitwise OR of one or more of |
| <A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html#FLAG_BOTTOMUP"><CODE>TJ.FLAG_*</CODE></A> |
| <DT><B>Returns:</B><DD>a buffer containing the decompressed image |
| <DT><B>Throws:</B> |
| <DD><CODE>java.lang.Exception</CODE></DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="decompressToYUV(byte[], int)"><!-- --></A><H3> |
| decompressToYUV</H3> |
| <PRE> |
| public void <B>decompressToYUV</B>(byte[] dstBuf, |
| int flags) |
| throws java.lang.Exception</PRE> |
| <DL> |
| <DD>Decompress the JPEG source image associated with this decompressor |
| instance and output a YUV planar image to the given destination buffer. |
| This method performs JPEG decompression but leaves out the color |
| conversion step, so a planar YUV image is generated instead of an RGB |
| image. The padding of the planes in this image is the same as in the |
| images generated by <A HREF="../../../org/libjpegturbo/turbojpeg/TJCompressor.html#encodeYUV(byte[], int)"><CODE>TJCompressor.encodeYUV(byte[], int)</CODE></A>. |
| <p> |
| NOTE: Technically, the JPEG format uses the YCbCr colorspace, but per the |
| convention of the digital video community, the TurboJPEG API uses "YUV" to |
| refer to an image format consisting of Y, Cb, and Cr image planes. |
| <P> |
| <DD><DL> |
| <DT><B>Parameters:</B><DD><CODE>dstBuf</CODE> - buffer that will receive the YUV planar image. Use |
| <A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html#bufSizeYUV(int, int, int)"><CODE>TJ.bufSizeYUV(int, int, int)</CODE></A> to determine the appropriate size for this buffer |
| based on the image width, height, and level of chrominance subsampling.<DD><CODE>flags</CODE> - the bitwise OR of one or more of |
| <A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html#FLAG_BOTTOMUP"><CODE>TJ.FLAG_*</CODE></A> |
| <DT><B>Throws:</B> |
| <DD><CODE>java.lang.Exception</CODE></DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="decompressToYUV(int)"><!-- --></A><H3> |
| decompressToYUV</H3> |
| <PRE> |
| public byte[] <B>decompressToYUV</B>(int flags) |
| throws java.lang.Exception</PRE> |
| <DL> |
| <DD>Decompress the JPEG source image associated with this decompressor |
| instance and return a buffer containing a YUV planar image. See <A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#decompressToYUV(byte[], int)"><CODE>decompressToYUV(byte[], int)</CODE></A> for more detail. |
| <P> |
| <DD><DL> |
| <DT><B>Parameters:</B><DD><CODE>flags</CODE> - the bitwise OR of one or more of |
| <A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html#FLAG_BOTTOMUP"><CODE>TJ.FLAG_*</CODE></A> |
| <DT><B>Returns:</B><DD>a buffer containing a YUV planar image |
| <DT><B>Throws:</B> |
| <DD><CODE>java.lang.Exception</CODE></DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="decompress(int[], int, int, int, int, int, int, int)"><!-- --></A><H3> |
| decompress</H3> |
| <PRE> |
| public void <B>decompress</B>(int[] dstBuf, |
| int x, |
| int y, |
| int desiredWidth, |
| int stride, |
| int desiredHeight, |
| int pixelFormat, |
| int flags) |
| throws java.lang.Exception</PRE> |
| <DL> |
| <DD>Decompress the JPEG source image associated with this decompressor |
| instance and output a decompressed image to the given destination buffer. |
| <P> |
| <DD><DL> |
| <DT><B>Parameters:</B><DD><CODE>dstBuf</CODE> - buffer that will receive the decompressed image. This |
| buffer should normally be <code>stride * scaledHeight</code> pixels in |
| size, where <code>scaledHeight</code> can be determined by calling <code> |
| scalingFactor.<A HREF="../../../org/libjpegturbo/turbojpeg/TJScalingFactor.html#getScaled(int)"><CODE>getScaled</CODE></A>(jpegHeight) |
| </code> with one of the scaling factors returned from <A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html#getScalingFactors()"><CODE>TJ.getScalingFactors()</CODE></A> or by calling <A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#getScaledHeight(int, int)"><CODE>getScaledHeight(int, int)</CODE></A>. However, |
| the buffer may also be larger than the dimensions of the JPEG image, in |
| which case the <code>x</code>, <code>y</code>, and <code>stride</code> |
| parameters can be used to specify the region into which the JPEG image |
| should be decompressed.<DD><CODE>x</CODE> - x offset (in pixels) of the region into which the JPEG image |
| should be decompressed, relative to the start of <code>dstBuf</code>.<DD><CODE>y</CODE> - y offset (in pixels) of the region into which the JPEG image |
| should be decompressed, relative to the start of <code>dstBuf</code>.<DD><CODE>desiredWidth</CODE> - desired width (in pixels) of the decompressed image |
| (or image region.) If the desired image dimensions are different than the |
| dimensions of the JPEG image being decompressed, then TurboJPEG will use |
| scaling in the JPEG decompressor to generate the largest possible image |
| that will fit within the desired dimensions. Setting this to 0 is the |
| same as setting it to the width of the JPEG image (in other words, the |
| width will not be considered when determining the scaled image size.)<DD><CODE>stride</CODE> - pixels per line of the destination image. Normally, this |
| should be set to <code>scaledWidth</code>, but you can use this to, for |
| instance, decompress the JPEG image into a region of a larger image. |
| NOTE: <code>scaledWidth</code> can be determined by calling <code> |
| scalingFactor.<A HREF="../../../org/libjpegturbo/turbojpeg/TJScalingFactor.html#getScaled(int)"><CODE>getScaled</CODE></A>(jpegWidth) |
| </code> or by calling <A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#getScaledWidth(int, int)"><CODE>getScaledWidth(int, int)</CODE></A>. Setting this parameter to |
| 0 is the equivalent of setting it to <code>scaledWidth</code>.<DD><CODE>desiredHeight</CODE> - desired height (in pixels) of the decompressed image |
| (or image region.) If the desired image dimensions are different than the |
| dimensions of the JPEG image being decompressed, then TurboJPEG will use |
| scaling in the JPEG decompressor to generate the largest possible image |
| that will fit within the desired dimensions. Setting this to 0 is the |
| same as setting it to the height of the JPEG image (in other words, the |
| height will not be considered when determining the scaled image size.)<DD><CODE>pixelFormat</CODE> - pixel format of the decompressed image (one of |
| <A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html#PF_RGB"><CODE>TJ.PF_*</CODE></A>)<DD><CODE>flags</CODE> - the bitwise OR of one or more of |
| <A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html#FLAG_BOTTOMUP"><CODE>TJ.FLAG_*</CODE></A> |
| <DT><B>Throws:</B> |
| <DD><CODE>java.lang.Exception</CODE></DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="decompress(java.awt.image.BufferedImage, int)"><!-- --></A><H3> |
| decompress</H3> |
| <PRE> |
| public void <B>decompress</B>(java.awt.image.BufferedImage dstImage, |
| int flags) |
| throws java.lang.Exception</PRE> |
| <DL> |
| <DD>Decompress the JPEG source image associated with this decompressor |
| instance and output a decompressed image to the given |
| <code>BufferedImage</code> instance. |
| <P> |
| <DD><DL> |
| <DT><B>Parameters:</B><DD><CODE>dstImage</CODE> - a <code>BufferedImage</code> instance that will receive |
| the decompressed image. The width and height of the |
| <code>BufferedImage</code> instance must match one of the scaled image |
| sizes that TurboJPEG is capable of generating from the JPEG image.<DD><CODE>flags</CODE> - the bitwise OR of one or more of |
| <A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html#FLAG_BOTTOMUP"><CODE>TJ.FLAG_*</CODE></A> |
| <DT><B>Throws:</B> |
| <DD><CODE>java.lang.Exception</CODE></DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="decompress(int, int, int, int)"><!-- --></A><H3> |
| decompress</H3> |
| <PRE> |
| public java.awt.image.BufferedImage <B>decompress</B>(int desiredWidth, |
| int desiredHeight, |
| int bufferedImageType, |
| int flags) |
| throws java.lang.Exception</PRE> |
| <DL> |
| <DD>Decompress the JPEG source image associated with this decompressor |
| instance and return a <code>BufferedImage</code> instance containing the |
| decompressed image. |
| <P> |
| <DD><DL> |
| <DT><B>Parameters:</B><DD><CODE>desiredWidth</CODE> - see |
| <A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#decompress(byte[], int, int, int, int, int, int, int)"><CODE>decompress(byte[], int, int, int, int, int, int, int)</CODE></A> for |
| description<DD><CODE>desiredHeight</CODE> - see |
| <A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#decompress(byte[], int, int, int, int, int, int, int)"><CODE>decompress(byte[], int, int, int, int, int, int, int)</CODE></A> for |
| description<DD><CODE>bufferedImageType</CODE> - the image type of the <code>BufferedImage</code> |
| instance that will be created (for instance, |
| <code>BufferedImage.TYPE_INT_RGB</code>)<DD><CODE>flags</CODE> - the bitwise OR of one or more of |
| <A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html#FLAG_BOTTOMUP"><CODE>TJ.FLAG_*</CODE></A> |
| <DT><B>Returns:</B><DD>a <code>BufferedImage</code> instance containing the |
| decompressed image |
| <DT><B>Throws:</B> |
| <DD><CODE>java.lang.Exception</CODE></DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="close()"><!-- --></A><H3> |
| close</H3> |
| <PRE> |
| public void <B>close</B>() |
| throws java.lang.Exception</PRE> |
| <DL> |
| <DD>Free the native structures associated with this decompressor instance. |
| <P> |
| <DD><DL> |
| |
| <DT><B>Throws:</B> |
| <DD><CODE>java.lang.Exception</CODE></DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="finalize()"><!-- --></A><H3> |
| finalize</H3> |
| <PRE> |
| protected void <B>finalize</B>() |
| throws java.lang.Throwable</PRE> |
| <DL> |
| <DD><DL> |
| <DT><B>Overrides:</B><DD><CODE>finalize</CODE> in class <CODE>java.lang.Object</CODE></DL> |
| </DD> |
| <DD><DL> |
| |
| <DT><B>Throws:</B> |
| <DD><CODE>java.lang.Throwable</CODE></DL> |
| </DD> |
| </DL> |
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