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TJDecompressor
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<A HREF="../../../org/libjpegturbo/turbojpeg/TJCustomFilter.html" title="interface in org.libjpegturbo.turbojpeg"><B>PREV CLASS</B></A>
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org.libjpegturbo.turbojpeg</FONT>
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Class TJDecompressor</H2>
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<PRE>
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java.lang.Object
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<IMG SRC="../../../resources/inherit.gif" ALT="extended by "><B>org.libjpegturbo.turbojpeg.TJDecompressor</B>
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</PRE>
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<DL>
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<DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../org/libjpegturbo/turbojpeg/TJTransformer.html" title="class in org.libjpegturbo.turbojpeg">TJTransformer</A></DD>
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</DL>
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<HR>
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<DL>
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<DT><PRE>public class <B>TJDecompressor</B><DT>extends java.lang.Object</DL>
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</PRE>
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<P>
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TurboJPEG decompressor
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<P>
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<P>
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<HR>
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<P>
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<!-- =========== FIELD SUMMARY =========== -->
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<A NAME="field_summary"><!-- --></A>
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
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<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
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<B>Field Summary</B></FONT></TH>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>protected long</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#handle">handle</A></B></CODE>
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<BR>
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</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>protected byte[]</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#jpegBuf">jpegBuf</A></B></CODE>
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<BR>
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</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>protected int</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#jpegBufSize">jpegBufSize</A></B></CODE>
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<BR>
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</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>protected int</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#jpegHeight">jpegHeight</A></B></CODE>
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<BR>
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</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>protected int</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#jpegSubsamp">jpegSubsamp</A></B></CODE>
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<BR>
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</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>protected int</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#jpegWidth">jpegWidth</A></B></CODE>
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<BR>
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</TD>
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</TR>
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</TABLE>
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<!-- ======== CONSTRUCTOR SUMMARY ======== -->
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<A NAME="constructor_summary"><!-- --></A>
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
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<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
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<B>Constructor Summary</B></FONT></TH>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#TJDecompressor()">TJDecompressor</A></B>()</CODE>
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<BR>
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Create a TurboJPEG decompresssor instance.</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#TJDecompressor(byte[])">TJDecompressor</A></B>(byte[] jpegImage)</CODE>
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<BR>
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Create a TurboJPEG decompressor instance and associate the JPEG image
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stored in <code>jpegImage</code> with the newly-created instance.</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#TJDecompressor(byte[], int)">TJDecompressor</A></B>(byte[] jpegImage,
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int imageSize)</CODE>
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<BR>
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Create a TurboJPEG decompressor instance and associate the JPEG image
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of length <code>imageSize</code> bytes stored in <code>jpegImage</code>
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with the newly-created instance.</TD>
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</TR>
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</TABLE>
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<!-- ========== METHOD SUMMARY =========== -->
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<A NAME="method_summary"><!-- --></A>
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
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<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
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<B>Method Summary</B></FONT></TH>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE> void</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#close()">close</A></B>()</CODE>
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<BR>
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Free the native structures associated with this decompressor instance.</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE> void</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#decompress(java.awt.image.BufferedImage, int)">decompress</A></B>(java.awt.image.BufferedImage dstImage,
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int flags)</CODE>
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<BR>
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Decompress the JPEG source image associated with this decompressor
|
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instance and output a decompressed image to the given
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<code>BufferedImage</code> instance.</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE> void</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#decompress(byte[], int, int, int, int, int)">decompress</A></B>(byte[] dstBuf,
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int desiredWidth,
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int pitch,
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int desiredHeight,
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int pixelFormat,
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int flags)</CODE>
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<BR>
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Decompress the JPEG source image associated with this decompressor
|
|
instance and output a decompressed image to the given destination buffer.</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE> java.awt.image.BufferedImage</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#decompress(int, int, int, int)">decompress</A></B>(int desiredWidth,
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int desiredHeight,
|
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int bufferedImageType,
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int flags)</CODE>
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<BR>
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Decompress the JPEG source image associated with this decompressor
|
|
instance and return a <code>BufferedImage</code> instance containing the
|
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decompressed image.</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
|
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<CODE> byte[]</CODE></FONT></TD>
|
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<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#decompress(int, int, int, int, int)">decompress</A></B>(int desiredWidth,
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int pitch,
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int desiredHeight,
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int pixelFormat,
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int flags)</CODE>
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<BR>
|
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Decompress the JPEG source image associated with this decompressor
|
|
instance and return a buffer containing the decompressed image.</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE> void</CODE></FONT></TD>
|
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<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#decompressToYUV(byte[], int)">decompressToYUV</A></B>(byte[] dstBuf,
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int flags)</CODE>
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<BR>
|
|
Decompress the JPEG source image associated with this decompressor
|
|
instance and output a YUV planar image to the given destination buffer.</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE> byte[]</CODE></FONT></TD>
|
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<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#decompressToYUV(int)">decompressToYUV</A></B>(int flags)</CODE>
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<BR>
|
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Decompress the JPEG source image associated with this decompressor
|
|
instance and return a buffer containing a YUV planar image.</TD>
|
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>protected void</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#finalize()">finalize</A></B>()</CODE>
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<BR>
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</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE> int</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#getHeight()">getHeight</A></B>()</CODE>
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<BR>
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Returns the height of the JPEG image associated with this decompressor
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instance.</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE> byte[]</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#getJPEGBuf()">getJPEGBuf</A></B>()</CODE>
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<BR>
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Returns the JPEG image buffer associated with this decompressor instance.</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE> int</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#getJPEGSize()">getJPEGSize</A></B>()</CODE>
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<BR>
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Returns the size of the JPEG image (in bytes) associated with this
|
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decompressor instance.</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE> int</CODE></FONT></TD>
|
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<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#getScaledHeight(int, int)">getScaledHeight</A></B>(int desiredWidth,
|
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int desiredHeight)</CODE>
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<BR>
|
|
Returns the height of the largest scaled down image that the TurboJPEG
|
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decompressor can generate without exceeding the desired image width and
|
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height.</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE> int</CODE></FONT></TD>
|
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<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#getScaledWidth(int, int)">getScaledWidth</A></B>(int desiredWidth,
|
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int desiredHeight)</CODE>
|
|
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<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>
|
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</TR>
|
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<TR BGCOLOR="white" CLASS="TableRowColor">
|
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
|
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<CODE> int</CODE></FONT></TD>
|
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<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#getSubsamp()">getSubsamp</A></B>()</CODE>
|
|
|
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<BR>
|
|
Returns the level of chrominance subsampling used in the JPEG image
|
|
associated with this decompressor instance.</TD>
|
|
</TR>
|
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
|
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<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">
|
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
|
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<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
|
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<code>jpegImage</code> with this decompressor instance.</TD>
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|
</TR>
|
|
</TABLE>
|
|
<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
|
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
|
|
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
|
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<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>
|
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</TABLE>
|
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|
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<P>
|
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<!-- ============ FIELD DETAIL =========== -->
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<A NAME="field_detail"><!-- --></A>
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
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<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
|
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<B>Field Detail</B></FONT></TH>
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</TR>
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</TABLE>
|
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|
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<A NAME="handle"><!-- --></A><H3>
|
|
handle</H3>
|
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<PRE>
|
|
protected long <B>handle</B></PRE>
|
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<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.
|
|
<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)"><!-- --></A><H3>
|
|
decompress</H3>
|
|
<PRE>
|
|
public void <B>decompress</B>(byte[] dstBuf,
|
|
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>.<DD><CODE>desiredWidth</CODE> - desired width (in pixels) of the decompressed image.
|
|
If the desired image dimensions are smaller 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. 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.
|
|
If the desired image dimensions are smaller 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" title="class in org.libjpegturbo.turbojpeg"><CODE>TJ.PF_*</CODE></A>)<DD><CODE>flags</CODE> - the bitwise OR of one or more of <A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html" title="class in org.libjpegturbo.turbojpeg"><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, 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)"><CODE>decompress(byte[], 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)"><CODE>decompress(byte[], 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)"><CODE>decompress(byte[], 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" title="class in org.libjpegturbo.turbojpeg"><CODE>TJ.PF_*</CODE></A>)<DD><CODE>flags</CODE> - the bitwise OR of one or more of <A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html" title="class in org.libjpegturbo.turbojpeg"><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 the images
|
|
generated by <A HREF="../../../org/libjpegturbo/turbojpeg/TJCompressor.html#encodeYUV(byte[], int)"><CODE>TJCompressor.encodeYUV(byte[], int)</CODE></A>. Note that, if
|
|
the width or height of the image is not an even multiple of the MCU block
|
|
size (see <A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html#getMCUWidth(int)"><CODE>TJ.getMCUWidth(int)</CODE></A> and <A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html#getMCUHeight(int)"><CODE>TJ.getMCUHeight(int)</CODE></A>), then an
|
|
intermediate buffer copy will be performed within TurboJPEG.
|
|
<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" title="class in org.libjpegturbo.turbojpeg"><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" title="class in org.libjpegturbo.turbojpeg"><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(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<DD><CODE>flags</CODE> - the bitwise OR of one or more of <A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html" title="class in org.libjpegturbo.turbojpeg"><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)"><CODE>decompress(byte[], 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)"><CODE>decompress(byte[], int, int, int, int, int)</CODE></A> for description<DD><CODE>bufferedImageType</CODE> - the image type of the newly-created
|
|
<code>BufferedImage</code> instance (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" title="class in org.libjpegturbo.turbojpeg"><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>
|
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</DL>
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