This corresponds to max_memory_to_use in the jpeg_memory_mgr struct in the libjpeg API, except that the TurboJPEG parameter is specified in megabytes. Because this is 2023 and computers with less than 1 MB of memory are not a thing (at least not within the scope of libjpeg-turbo support), it isn't useful to allow a limit less than 1 MB to be specified. Furthermore, because TurboJPEG parameters are signed integers, if we allowed the memory limit to be specified in bytes, then it would be impossible to specify a limit larger than 2 GB on 64-bit machines. Because max_memory_to_use is a long signed integer, effectively we can specify a limit of up to 2 petabytes on 64-bit machines if the TurboJPEG parameter is specified in megabytes. (2 PB should be enough for anybody, right?) This commit also bumps the TurboJPEG API version to 3.0.1. Since the TurboJPEG API version no longer tracks the libjpeg-turbo version, it makes sense to increment the API revision number when adding constants, to increment the minor version number when adding functions, and to increment the major version number for a complete overhaul. This commit also removes the vestigial TJ_NUMPARAM macro, which was never defined because it proved unnecessary. Partially implements #735
1126 lines
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1126 lines
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<div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.libjpegturbo.turbojpeg</a></div>
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<h2 title="Class TJCompressor" class="title">Class TJCompressor</h2>
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<pre>public class <span class="typeNameLabel">TJCompressor</span>
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extends java.lang.Object
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implements java.io.Closeable</pre>
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<div class="block">TurboJPEG compressor</div>
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<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E()">TJCompressor</a></span>()</code></th>
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<td class="colLast">
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<div class="block">Create a TurboJPEG compressor instance.</div>
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</td>
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</tr>
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<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(byte%5B%5D,int,int,int,int,int,int)">TJCompressor</a></span>​(byte[] srcImage,
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int x,
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int y,
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int width,
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int pitch,
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int height,
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int pixelFormat)</code></th>
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<td class="colLast">
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<div class="block">Create a TurboJPEG compressor instance and associate the 8-bit-per-sample
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packed-pixel source image stored in <code>srcImage</code> with the newly
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created instance.</div>
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<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(java.awt.image.BufferedImage,int,int,int,int)">TJCompressor</a></span>​(java.awt.image.BufferedImage srcImage,
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int x,
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int y,
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int width,
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int height)</code></th>
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<td class="colLast">
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<div class="block">Create a TurboJPEG compressor instance and associate the 8-bit-per-sample
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packed-pixel source image stored in <code>srcImage</code> with the newly
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created instance.</div>
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</td>
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span><span id="t6" class="tableTab"><span><a href="javascript:show(32);">Deprecated Methods</a></span><span class="tabEnd"> </span></span></caption>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<th class="colLast" scope="col">Description</th>
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</tr>
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<tr id="i0" class="altColor">
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<td class="colFirst"><code>void</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#close()">close</a></span>()</code></th>
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<td class="colLast">
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<div class="block">Free the native structures associated with this compressor instance.</div>
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</td>
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</tr>
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<tr id="i1" class="rowColor">
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<td class="colFirst"><code>byte[]</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#compress()">compress</a></span>()</code></th>
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<td class="colLast">
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<div class="block">Compress the packed-pixel or planar YUV source image associated with this
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compressor instance and return a buffer containing a JPEG image.</div>
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</td>
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</tr>
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<tr id="i2" class="altColor">
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<td class="colFirst"><code>void</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#compress(byte%5B%5D)">compress</a></span>​(byte[] dstBuf)</code></th>
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<td class="colLast">
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<div class="block">Compress the packed-pixel or planar YUV source image associated with this
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compressor instance and output a JPEG image to the given destination
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buffer.</div>
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</td>
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</tr>
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<tr id="i3" class="rowColor">
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<td class="colFirst"><code>void</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#compress(byte%5B%5D,int)">compress</a></span>​(byte[] dstBuf,
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int flags)</code></th>
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<td class="colLast">
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<div class="block"><span class="deprecatedLabel">Deprecated.</span>
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<div class="deprecationComment">Use <a href="#set(int,int)"><code>set()</code></a> and <a href="#compress(byte%5B%5D)"><code>compress(byte[])</code></a> instead.</div>
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</div>
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</td>
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</tr>
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<tr id="i4" class="altColor">
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<td class="colFirst"><code>byte[]</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#compress(int)">compress</a></span>​(int flags)</code></th>
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<td class="colLast">
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<div class="block"><span class="deprecatedLabel">Deprecated.</span>
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<div class="deprecationComment">Use <a href="#set(int,int)"><code>set()</code></a> and <a href="#compress()"><code>compress()</code></a> instead.</div>
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</div>
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</td>
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</tr>
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<tr id="i5" class="rowColor">
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<td class="colFirst"><code><a href="YUVImage.html" title="class in org.libjpegturbo.turbojpeg">YUVImage</a></code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#encodeYUV(int)">encodeYUV</a></span>​(int align)</code></th>
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<td class="colLast">
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<div class="block">Encode the 8-bit-per-sample packed-pixel source image associated with this
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compressor instance into an 8-bit-per-sample unified planar YUV image and
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return a <a href="YUVImage.html" title="class in org.libjpegturbo.turbojpeg"><code>YUVImage</code></a> instance containing the encoded image.</div>
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</td>
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</tr>
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<tr id="i6" class="altColor">
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<td class="colFirst"><code><a href="YUVImage.html" title="class in org.libjpegturbo.turbojpeg">YUVImage</a></code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#encodeYUV(int%5B%5D)">encodeYUV</a></span>​(int[] strides)</code></th>
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<td class="colLast">
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<div class="block">Encode the 8-bit-per-sample packed-pixel source image associated with this
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compressor instance into separate 8-bit-per-sample Y, U (Cb), and V (Cr)
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image planes and return a <a href="YUVImage.html" title="class in org.libjpegturbo.turbojpeg"><code>YUVImage</code></a> instance containing the encoded
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image planes.</div>
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</td>
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</tr>
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<tr id="i7" class="rowColor">
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<td class="colFirst"><code><a href="YUVImage.html" title="class in org.libjpegturbo.turbojpeg">YUVImage</a></code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#encodeYUV(int%5B%5D,int)">encodeYUV</a></span>​(int[] strides,
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int flags)</code></th>
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<td class="colLast">
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<div class="block"><span class="deprecatedLabel">Deprecated.</span>
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<div class="deprecationComment">Use <a href="#set(int,int)"><code>set()</code></a> and <a href="#encodeYUV(int%5B%5D)"><code>encodeYUV(int[])</code></a> instead.</div>
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</div>
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</td>
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</tr>
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<tr id="i8" class="altColor">
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<td class="colFirst"><code><a href="YUVImage.html" title="class in org.libjpegturbo.turbojpeg">YUVImage</a></code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#encodeYUV(int,int)">encodeYUV</a></span>​(int align,
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int flags)</code></th>
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<td class="colLast">
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<div class="block"><span class="deprecatedLabel">Deprecated.</span>
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<div class="deprecationComment">Use <a href="#set(int,int)"><code>set()</code></a> and <a href="#encodeYUV(int)"><code>encodeYUV(int)</code></a> instead.</div>
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</div>
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</td>
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</tr>
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<tr id="i9" class="rowColor">
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<td class="colFirst"><code>void</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#encodeYUV(org.libjpegturbo.turbojpeg.YUVImage)">encodeYUV</a></span>​(<a href="YUVImage.html" title="class in org.libjpegturbo.turbojpeg">YUVImage</a> dstImage)</code></th>
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<td class="colLast">
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<div class="block">Encode the 8-bit-per-sample packed-pixel source image associated with this
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compressor instance into an 8-bit-per-sample planar YUV image and store it
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in the given <a href="YUVImage.html" title="class in org.libjpegturbo.turbojpeg"><code>YUVImage</code></a> instance.</div>
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</td>
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</tr>
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<tr id="i10" class="altColor">
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<td class="colFirst"><code>void</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#encodeYUV(org.libjpegturbo.turbojpeg.YUVImage,int)">encodeYUV</a></span>​(<a href="YUVImage.html" title="class in org.libjpegturbo.turbojpeg">YUVImage</a> dstImage,
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int flags)</code></th>
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<td class="colLast">
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<div class="block"><span class="deprecatedLabel">Deprecated.</span>
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<div class="deprecationComment">Use <a href="#set(int,int)"><code>set()</code></a> and <a href="#encodeYUV(org.libjpegturbo.turbojpeg.YUVImage)"><code>encodeYUV(YUVImage)</code></a>
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instead.</div>
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</div>
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</td>
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</tr>
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<tr id="i11" class="rowColor">
|
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<td class="colFirst"><code>protected void</code></td>
|
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#finalize()">finalize</a></span>()</code></th>
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<td class="colLast"> </td>
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</tr>
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<tr id="i12" class="altColor">
|
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<td class="colFirst"><code>int</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#get(int)">get</a></span>​(int param)</code></th>
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<td class="colLast">
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<div class="block">Get the value of a compression parameter.</div>
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</td>
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</tr>
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<tr id="i13" class="rowColor">
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<td class="colFirst"><code>int</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getCompressedSize()">getCompressedSize</a></span>()</code></th>
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<td class="colLast">
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<div class="block">Returns the size of the image (in bytes) generated by the most recent
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compress operation.</div>
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</td>
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</tr>
|
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<tr id="i14" class="altColor">
|
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<td class="colFirst"><code>void</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#set(int,int)">set</a></span>​(int param,
|
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int value)</code></th>
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<td class="colLast">
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<div class="block">Set the value of a compression parameter.</div>
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</td>
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</tr>
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<tr id="i15" class="rowColor">
|
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<td class="colFirst"><code>void</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#setJPEGQuality(int)">setJPEGQuality</a></span>​(int quality)</code></th>
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<td class="colLast">
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<div class="block"><span class="deprecatedLabel">Deprecated.</span>
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<div class="deprecationComment">Use
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<code><a href="#set(int,int)"><code>set</code></a>(<a href="TJ.html#PARAM_QUALITY"><code>TJ.PARAM_QUALITY</code></a>, ...)</code> instead.</div>
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</div>
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</td>
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</tr>
|
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<tr id="i16" class="altColor">
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<td class="colFirst"><code>void</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#setSourceImage(byte%5B%5D,int,int,int,int,int,int)">setSourceImage</a></span>​(byte[] srcImage,
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int x,
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int y,
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int width,
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int pitch,
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int height,
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int pixelFormat)</code></th>
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<td class="colLast">
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<div class="block">Associate an 8-bit-per-sample packed-pixel RGB, grayscale, or CMYK source
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image with this compressor instance.</div>
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</td>
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</tr>
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<tr id="i17" class="rowColor">
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<td class="colFirst"><code>void</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#setSourceImage(java.awt.image.BufferedImage,int,int,int,int)">setSourceImage</a></span>​(java.awt.image.BufferedImage srcImage,
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int x,
|
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int y,
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int width,
|
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int height)</code></th>
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<td class="colLast">
|
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<div class="block">Associate an 8-bit-per-pixel packed-pixel RGB or grayscale source image
|
|
with this compressor instance.</div>
|
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</td>
|
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</tr>
|
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<tr id="i18" class="altColor">
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<td class="colFirst"><code>void</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#setSourceImage(org.libjpegturbo.turbojpeg.YUVImage)">setSourceImage</a></span>​(<a href="YUVImage.html" title="class in org.libjpegturbo.turbojpeg">YUVImage</a> srcImage)</code></th>
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<td class="colLast">
|
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<div class="block">Associate an 8-bit-per-sample planar YUV source image with this compressor
|
|
instance.</div>
|
|
</td>
|
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</tr>
|
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<tr id="i19" class="rowColor">
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<td class="colFirst"><code>void</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#setSourceImage12(short%5B%5D,int,int,int,int,int,int)">setSourceImage12</a></span>​(short[] srcImage,
|
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int x,
|
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int y,
|
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int width,
|
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int pitch,
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int height,
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int pixelFormat)</code></th>
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<td class="colLast">
|
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<div class="block">Associate a 12-bit-per-sample packed-pixel RGB, grayscale, or CMYK source
|
|
image with this compressor instance.</div>
|
|
</td>
|
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</tr>
|
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<tr id="i20" class="altColor">
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<td class="colFirst"><code>void</code></td>
|
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#setSourceImage16(short%5B%5D,int,int,int,int,int,int)">setSourceImage16</a></span>​(short[] srcImage,
|
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int x,
|
|
int y,
|
|
int width,
|
|
int pitch,
|
|
int height,
|
|
int pixelFormat)</code></th>
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<td class="colLast">
|
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<div class="block">Associate a 16-bit-per-sample packed-pixel RGB, grayscale, or CMYK source
|
|
image with this compressor instance.</div>
|
|
</td>
|
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</tr>
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<tr id="i21" class="rowColor">
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<td class="colFirst"><code>void</code></td>
|
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#setSubsamp(int)">setSubsamp</a></span>​(int subsamp)</code></th>
|
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<td class="colLast">
|
|
<div class="block"><span class="deprecatedLabel">Deprecated.</span>
|
|
<div class="deprecationComment">Use
|
|
<code><a href="#set(int,int)"><code>set</code></a>(<a href="TJ.html#PARAM_SUBSAMP"><code>TJ.PARAM_SUBSAMP</code></a>, ...)</code> instead.</div>
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</a>
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<h3>Methods inherited from class java.lang.Object</h3>
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<code>clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li>
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</ul>
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</li>
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</ul>
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</section>
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</li>
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<h4>TJCompressor</h4>
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<pre>public TJCompressor()
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throws <a href="TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></pre>
|
|
<div class="block">Create a TurboJPEG compressor instance.</div>
|
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<dl>
|
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<dt><span class="throwsLabel">Throws:</span></dt>
|
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<dd><code><a href="TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></code></dd>
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</dl>
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<a id="<init>(byte[],int,int,int,int,int,int)">
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<h4>TJCompressor</h4>
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<pre>public TJCompressor​(byte[] srcImage,
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int x,
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int y,
|
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int width,
|
|
int pitch,
|
|
int height,
|
|
int pixelFormat)
|
|
throws <a href="TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></pre>
|
|
<div class="block">Create a TurboJPEG compressor instance and associate the 8-bit-per-sample
|
|
packed-pixel source image stored in <code>srcImage</code> with the newly
|
|
created instance.</div>
|
|
<dl>
|
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<dt><span class="paramLabel">Parameters:</span></dt>
|
|
<dd><code>srcImage</code> - see <a href="#setSourceImage(byte%5B%5D,int,int,int,int,int,int)"><code>setSourceImage(byte[], int, int, int, int, int, int)</code></a> for description</dd>
|
|
<dd><code>x</code> - see <a href="#setSourceImage(byte%5B%5D,int,int,int,int,int,int)"><code>setSourceImage(byte[], int, int, int, int, int, int)</code></a> for description</dd>
|
|
<dd><code>y</code> - see <a href="#setSourceImage(byte%5B%5D,int,int,int,int,int,int)"><code>setSourceImage(byte[], int, int, int, int, int, int)</code></a> for description</dd>
|
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<dd><code>width</code> - see <a href="#setSourceImage(byte%5B%5D,int,int,int,int,int,int)"><code>setSourceImage(byte[], int, int, int, int, int, int)</code></a> for description</dd>
|
|
<dd><code>pitch</code> - see <a href="#setSourceImage(byte%5B%5D,int,int,int,int,int,int)"><code>setSourceImage(byte[], int, int, int, int, int, int)</code></a> for description</dd>
|
|
<dd><code>height</code> - see <a href="#setSourceImage(byte%5B%5D,int,int,int,int,int,int)"><code>setSourceImage(byte[], int, int, int, int, int, int)</code></a> for description</dd>
|
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<dd><code>pixelFormat</code> - pixel format of the source image (one of
|
|
<a href="TJ.html#PF_RGB"><code>TJ.PF_*</code></a>)</dd>
|
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<dt><span class="throwsLabel">Throws:</span></dt>
|
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<dd><code><a href="TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></code></dd>
|
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</dl>
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</ul>
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<h4>TJCompressor</h4>
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<pre>public TJCompressor​(java.awt.image.BufferedImage srcImage,
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int x,
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int y,
|
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int width,
|
|
int height)
|
|
throws <a href="TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></pre>
|
|
<div class="block">Create a TurboJPEG compressor instance and associate the 8-bit-per-sample
|
|
packed-pixel source image stored in <code>srcImage</code> with the newly
|
|
created instance.</div>
|
|
<dl>
|
|
<dt><span class="paramLabel">Parameters:</span></dt>
|
|
<dd><code>srcImage</code> - see
|
|
<a href="#setSourceImage(java.awt.image.BufferedImage,int,int,int,int)"><code>setSourceImage(BufferedImage, int, int, int, int)</code></a> for description</dd>
|
|
<dd><code>x</code> - see
|
|
<a href="#setSourceImage(java.awt.image.BufferedImage,int,int,int,int)"><code>setSourceImage(BufferedImage, int, int, int, int)</code></a> for description</dd>
|
|
<dd><code>y</code> - see
|
|
<a href="#setSourceImage(java.awt.image.BufferedImage,int,int,int,int)"><code>setSourceImage(BufferedImage, int, int, int, int)</code></a> for description</dd>
|
|
<dd><code>width</code> - see
|
|
<a href="#setSourceImage(java.awt.image.BufferedImage,int,int,int,int)"><code>setSourceImage(BufferedImage, int, int, int, int)</code></a> for description</dd>
|
|
<dd><code>height</code> - see
|
|
<a href="#setSourceImage(java.awt.image.BufferedImage,int,int,int,int)"><code>setSourceImage(BufferedImage, int, int, int, int)</code></a> for description</dd>
|
|
<dt><span class="throwsLabel">Throws:</span></dt>
|
|
<dd><code><a href="TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></code></dd>
|
|
</dl>
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</li>
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</ul>
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</li>
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</ul>
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</section>
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<a id="setSourceImage(byte[],int,int,int,int,int,int)">
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<h4>setSourceImage</h4>
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<pre class="methodSignature">public void setSourceImage​(byte[] srcImage,
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int x,
|
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int y,
|
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int width,
|
|
int pitch,
|
|
int height,
|
|
int pixelFormat)
|
|
throws <a href="TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></pre>
|
|
<div class="block">Associate an 8-bit-per-sample packed-pixel RGB, grayscale, or CMYK source
|
|
image with this compressor instance.</div>
|
|
<dl>
|
|
<dt><span class="paramLabel">Parameters:</span></dt>
|
|
<dd><code>srcImage</code> - buffer containing a packed-pixel RGB, grayscale, or CMYK
|
|
source image to be compressed or encoded. This buffer is not modified.</dd>
|
|
<dd><code>x</code> - x offset (in pixels) of the region in the source image from which
|
|
the JPEG or YUV image should be compressed/encoded</dd>
|
|
<dd><code>y</code> - y offset (in pixels) of the region in the source image from which
|
|
the JPEG or YUV image should be compressed/encoded</dd>
|
|
<dd><code>width</code> - width (in pixels) of the region in the source image from
|
|
which the JPEG or YUV image should be compressed/encoded</dd>
|
|
<dd><code>pitch</code> - bytes per row in the source image. Normally this should be
|
|
<code>width * <a href="TJ.html#getPixelSize(int)"><code>TJ.getPixelSize</code></a>(pixelFormat)</code>,
|
|
if the source image is unpadded. (Setting this parameter to 0 is the
|
|
equivalent of setting it to <code>width *
|
|
<a href="TJ.html#getPixelSize(int)"><code>TJ.getPixelSize</code></a>(pixelFormat)</code>.) However,
|
|
you can also use this parameter to specify the row alignment/padding of
|
|
the source image, to skip rows, or to compress/encode a JPEG or YUV image
|
|
from a specific region of a larger source image.</dd>
|
|
<dd><code>height</code> - height (in pixels) of the region in the source image from
|
|
which the JPEG or YUV image should be compressed/encoded</dd>
|
|
<dd><code>pixelFormat</code> - pixel format of the source image (one of
|
|
<a href="TJ.html#PF_RGB"><code>TJ.PF_*</code></a>)</dd>
|
|
<dt><span class="throwsLabel">Throws:</span></dt>
|
|
<dd><code><a href="TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></code></dd>
|
|
</dl>
|
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</li>
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</ul>
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<a id="setSourceImage12(short[],int,int,int,int,int,int)">
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<h4>setSourceImage12</h4>
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<pre class="methodSignature">public void setSourceImage12​(short[] srcImage,
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int x,
|
|
int y,
|
|
int width,
|
|
int pitch,
|
|
int height,
|
|
int pixelFormat)
|
|
throws <a href="TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></pre>
|
|
<div class="block">Associate a 12-bit-per-sample packed-pixel RGB, grayscale, or CMYK source
|
|
image with this compressor instance. Note that 12-bit-per-sample
|
|
packed-pixel source images can only be compressed into 12-bit-per-sample
|
|
JPEG images.</div>
|
|
<dl>
|
|
<dt><span class="paramLabel">Parameters:</span></dt>
|
|
<dd><code>srcImage</code> - buffer containing a packed-pixel RGB, grayscale, or CMYK
|
|
source image to be compressed. This buffer is not modified.</dd>
|
|
<dd><code>x</code> - x offset (in pixels) of the region in the source image from which
|
|
the JPEG image should be compressed</dd>
|
|
<dd><code>y</code> - y offset (in pixels) of the region in the source image from which
|
|
the JPEG image should be compressed</dd>
|
|
<dd><code>width</code> - width (in pixels) of the region in the source image from
|
|
which the JPEG image should be compressed</dd>
|
|
<dd><code>pitch</code> - samples per row in the source image. Normally this should be
|
|
<code>width * <a href="TJ.html#getPixelSize(int)"><code>TJ.getPixelSize</code></a>(pixelFormat)</code>,
|
|
if the source image is unpadded. (Setting this parameter to 0 is the
|
|
equivalent of setting it to <code>width *
|
|
<a href="TJ.html#getPixelSize(int)"><code>TJ.getPixelSize</code></a>(pixelFormat)</code>.) However,
|
|
you can also use this parameter to specify the row alignment/padding of
|
|
the source image, to skip rows, or to compress a JPEG image from a
|
|
specific region of a larger source image.</dd>
|
|
<dd><code>height</code> - height (in pixels) of the region in the source image from
|
|
which the JPEG image should be compressed</dd>
|
|
<dd><code>pixelFormat</code> - pixel format of the source image (one of
|
|
<a href="TJ.html#PF_RGB"><code>TJ.PF_*</code></a>)</dd>
|
|
<dt><span class="throwsLabel">Throws:</span></dt>
|
|
<dd><code><a href="TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></code></dd>
|
|
</dl>
|
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</li>
|
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</ul>
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<h4>setSourceImage16</h4>
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<pre class="methodSignature">public void setSourceImage16​(short[] srcImage,
|
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int x,
|
|
int y,
|
|
int width,
|
|
int pitch,
|
|
int height,
|
|
int pixelFormat)
|
|
throws <a href="TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></pre>
|
|
<div class="block">Associate a 16-bit-per-sample packed-pixel RGB, grayscale, or CMYK source
|
|
image with this compressor instance. Note that 16-bit-per-sample
|
|
packed-pixel source images can only be compressed into 16-bit-per-sample
|
|
lossless JPEG images.</div>
|
|
<dl>
|
|
<dt><span class="paramLabel">Parameters:</span></dt>
|
|
<dd><code>srcImage</code> - buffer containing a packed-pixel RGB, grayscale, or CMYK
|
|
source image to be compressed. This buffer is not modified.</dd>
|
|
<dd><code>x</code> - x offset (in pixels) of the region in the source image from which
|
|
the JPEG image should be compressed</dd>
|
|
<dd><code>y</code> - y offset (in pixels) of the region in the source image from which
|
|
the JPEG image should be compressed</dd>
|
|
<dd><code>width</code> - width (in pixels) of the region in the source image from
|
|
which the JPEG image should be compressed</dd>
|
|
<dd><code>pitch</code> - samples per row in the source image. Normally this should be
|
|
<code>width * <a href="TJ.html#getPixelSize(int)"><code>TJ.getPixelSize</code></a>(pixelFormat)</code>,
|
|
if the source image is unpadded. (Setting this parameter to 0 is the
|
|
equivalent of setting it to <code>width *
|
|
<a href="TJ.html#getPixelSize(int)"><code>TJ.getPixelSize</code></a>(pixelFormat)</code>.) However,
|
|
you can also use this parameter to specify the row alignment/padding of
|
|
the source image, to skip rows, or to compress a JPEG image from a
|
|
specific region of a larger source image.</dd>
|
|
<dd><code>height</code> - height (in pixels) of the region in the source image from
|
|
which the JPEG image should be compressed</dd>
|
|
<dd><code>pixelFormat</code> - pixel format of the source image (one of
|
|
<a href="TJ.html#PF_RGB"><code>TJ.PF_*</code></a>)</dd>
|
|
<dt><span class="throwsLabel">Throws:</span></dt>
|
|
<dd><code><a href="TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></code></dd>
|
|
</dl>
|
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</li>
|
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</ul>
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<h4>setSourceImage</h4>
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<pre class="methodSignature">public void setSourceImage​(java.awt.image.BufferedImage srcImage,
|
|
int x,
|
|
int y,
|
|
int width,
|
|
int height)
|
|
throws <a href="TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></pre>
|
|
<div class="block">Associate an 8-bit-per-pixel packed-pixel RGB or grayscale source image
|
|
with this compressor instance.</div>
|
|
<dl>
|
|
<dt><span class="paramLabel">Parameters:</span></dt>
|
|
<dd><code>srcImage</code> - a <code>BufferedImage</code> instance containing a
|
|
packed-pixel RGB or grayscale source image to be compressed or encoded.
|
|
This image is not modified.</dd>
|
|
<dd><code>x</code> - x offset (in pixels) of the region in the source image from which
|
|
the JPEG or YUV image should be compressed/encoded</dd>
|
|
<dd><code>y</code> - y offset (in pixels) of the region in the source image from which
|
|
the JPEG or YUV image should be compressed/encoded</dd>
|
|
<dd><code>width</code> - width (in pixels) of the region in the source image from
|
|
which the JPEG or YUV image should be compressed/encoded (0 = use the
|
|
width of the source image)</dd>
|
|
<dd><code>height</code> - height (in pixels) of the region in the source image from
|
|
which the JPEG or YUV image should be compressed/encoded (0 = use the
|
|
height of the source image)</dd>
|
|
<dt><span class="throwsLabel">Throws:</span></dt>
|
|
<dd><code><a href="TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></code></dd>
|
|
</dl>
|
|
</li>
|
|
</ul>
|
|
<a id="setSourceImage(org.libjpegturbo.turbojpeg.YUVImage)">
|
|
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<h4>setSourceImage</h4>
|
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<pre class="methodSignature">public void setSourceImage​(<a href="YUVImage.html" title="class in org.libjpegturbo.turbojpeg">YUVImage</a> srcImage)
|
|
throws <a href="TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></pre>
|
|
<div class="block">Associate an 8-bit-per-sample planar YUV source image with this compressor
|
|
instance. This method sets <a href="TJ.html#PARAM_SUBSAMP"><code>TJ.PARAM_SUBSAMP</code></a> to the chrominance
|
|
subsampling level of the source image.</div>
|
|
<dl>
|
|
<dt><span class="paramLabel">Parameters:</span></dt>
|
|
<dd><code>srcImage</code> - planar YUV source image to be compressed. This image is
|
|
not modified.</dd>
|
|
<dt><span class="throwsLabel">Throws:</span></dt>
|
|
<dd><code><a href="TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></code></dd>
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</dl>
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<h4>set</h4>
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<pre class="methodSignature">public void set​(int param,
|
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int value)</pre>
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<div class="block">Set the value of a compression parameter.</div>
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<dl>
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<dt><span class="paramLabel">Parameters:</span></dt>
|
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<dd><code>param</code> - one of <a href="TJ.html#PARAM_STOPONWARNING"><code>TJ.PARAM_*</code></a></dd>
|
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<dd><code>value</code> - value of the compression parameter (refer to
|
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<a href="TJ.html#PARAM_STOPONWARNING"><code>parameter documentation</code></a>)</dd>
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</dl>
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<a id="get(int)">
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<h4>get</h4>
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<pre class="methodSignature">public int get​(int param)</pre>
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<div class="block">Get the value of a compression parameter.</div>
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<dl>
|
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<dt><span class="paramLabel">Parameters:</span></dt>
|
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<dd><code>param</code> - one of <a href="TJ.html#PARAM_STOPONWARNING"><code>TJ.PARAM_*</code></a></dd>
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<dt><span class="returnLabel">Returns:</span></dt>
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<dd>the value of the specified compression parameter, or -1 if the
|
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value is unknown.</dd>
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</dl>
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</ul>
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<a id="setSubsamp(int)">
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<h4>setSubsamp</h4>
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<pre class="methodSignature">@Deprecated
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public void setSubsamp​(int subsamp)</pre>
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<div class="deprecationBlock"><span class="deprecatedLabel">Deprecated.</span>
|
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<div class="deprecationComment">Use
|
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<code><a href="#set(int,int)"><code>set</code></a>(<a href="TJ.html#PARAM_SUBSAMP"><code>TJ.PARAM_SUBSAMP</code></a>, ...)</code> instead.</div>
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</div>
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</li>
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</ul>
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<a id="setJPEGQuality(int)">
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<h4>setJPEGQuality</h4>
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<pre class="methodSignature">@Deprecated
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public void setJPEGQuality​(int quality)</pre>
|
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<div class="deprecationBlock"><span class="deprecatedLabel">Deprecated.</span>
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<div class="deprecationComment">Use
|
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<code><a href="#set(int,int)"><code>set</code></a>(<a href="TJ.html#PARAM_QUALITY"><code>TJ.PARAM_QUALITY</code></a>, ...)</code> instead.</div>
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</div>
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</li>
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</ul>
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<h4>compress</h4>
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<pre class="methodSignature">public void compress​(byte[] dstBuf)
|
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throws <a href="TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></pre>
|
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<div class="block">Compress the packed-pixel or planar YUV source image associated with this
|
|
compressor instance and output a JPEG image to the given destination
|
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buffer.</div>
|
|
<dl>
|
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<dt><span class="paramLabel">Parameters:</span></dt>
|
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<dd><code>dstBuf</code> - buffer that will receive the JPEG image. Use
|
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<a href="TJ.html#bufSize(int,int,int)"><code>TJ.bufSize()</code></a> to determine the maximum size for this
|
|
buffer based on the source image's width and height and the desired level
|
|
of chrominance subsampling (see <a href="TJ.html#PARAM_SUBSAMP"><code>TJ.PARAM_SUBSAMP</code></a>.)</dd>
|
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<dt><span class="throwsLabel">Throws:</span></dt>
|
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<dd><code><a href="TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></code></dd>
|
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</dl>
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</li>
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</ul>
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<a id="compress(byte[],int)">
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</a>
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<ul class="blockList">
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<li class="blockList">
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<h4>compress</h4>
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<pre class="methodSignature">@Deprecated
|
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public void compress​(byte[] dstBuf,
|
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int flags)
|
|
throws <a href="TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></pre>
|
|
<div class="deprecationBlock"><span class="deprecatedLabel">Deprecated.</span>
|
|
<div class="deprecationComment">Use <a href="#set(int,int)"><code>set()</code></a> and <a href="#compress(byte%5B%5D)"><code>compress(byte[])</code></a> instead.</div>
|
|
</div>
|
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<dl>
|
|
<dt><span class="throwsLabel">Throws:</span></dt>
|
|
<dd><code><a href="TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></code></dd>
|
|
</dl>
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</li>
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</ul>
|
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<a id="compress()">
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<h4>compress</h4>
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<pre class="methodSignature">public byte[] compress()
|
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throws <a href="TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></pre>
|
|
<div class="block">Compress the packed-pixel or planar YUV source image associated with this
|
|
compressor instance and return a buffer containing a JPEG image.</div>
|
|
<dl>
|
|
<dt><span class="returnLabel">Returns:</span></dt>
|
|
<dd>a buffer containing a JPEG image. The length of this buffer will
|
|
not be equal to the size of the JPEG image. Use
|
|
<a href="#getCompressedSize()"><code>getCompressedSize()</code></a> to obtain the size of the JPEG image.</dd>
|
|
<dt><span class="throwsLabel">Throws:</span></dt>
|
|
<dd><code><a href="TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></code></dd>
|
|
</dl>
|
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</li>
|
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</ul>
|
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<a id="compress(int)">
|
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</a>
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<h4>compress</h4>
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<pre class="methodSignature">@Deprecated
|
|
public byte[] compress​(int flags)
|
|
throws <a href="TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></pre>
|
|
<div class="deprecationBlock"><span class="deprecatedLabel">Deprecated.</span>
|
|
<div class="deprecationComment">Use <a href="#set(int,int)"><code>set()</code></a> and <a href="#compress()"><code>compress()</code></a> instead.</div>
|
|
</div>
|
|
<dl>
|
|
<dt><span class="throwsLabel">Throws:</span></dt>
|
|
<dd><code><a href="TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></code></dd>
|
|
</dl>
|
|
</li>
|
|
</ul>
|
|
<a id="encodeYUV(org.libjpegturbo.turbojpeg.YUVImage)">
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</a>
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<h4>encodeYUV</h4>
|
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<pre class="methodSignature">public void encodeYUV​(<a href="YUVImage.html" title="class in org.libjpegturbo.turbojpeg">YUVImage</a> dstImage)
|
|
throws <a href="TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></pre>
|
|
<div class="block">Encode the 8-bit-per-sample packed-pixel source image associated with this
|
|
compressor instance into an 8-bit-per-sample planar YUV image and store it
|
|
in the given <a href="YUVImage.html" title="class in org.libjpegturbo.turbojpeg"><code>YUVImage</code></a> instance. This method performs color
|
|
conversion (which is accelerated in the libjpeg-turbo implementation) but
|
|
does not execute any of the other steps in the JPEG compression process.
|
|
Encoding CMYK source images into YUV images is not supported. This method
|
|
sets <a href="TJ.html#PARAM_SUBSAMP"><code>TJ.PARAM_SUBSAMP</code></a> to the chrominance subsampling level of the
|
|
destination image.</div>
|
|
<dl>
|
|
<dt><span class="paramLabel">Parameters:</span></dt>
|
|
<dd><code>dstImage</code> - <a href="YUVImage.html" title="class in org.libjpegturbo.turbojpeg"><code>YUVImage</code></a> instance that will receive the planar YUV
|
|
image</dd>
|
|
<dt><span class="throwsLabel">Throws:</span></dt>
|
|
<dd><code><a href="TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></code></dd>
|
|
</dl>
|
|
</li>
|
|
</ul>
|
|
<a id="encodeYUV(org.libjpegturbo.turbojpeg.YUVImage,int)">
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|
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</a>
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<h4>encodeYUV</h4>
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<pre class="methodSignature">@Deprecated
|
|
public void encodeYUV​(<a href="YUVImage.html" title="class in org.libjpegturbo.turbojpeg">YUVImage</a> dstImage,
|
|
int flags)
|
|
throws <a href="TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></pre>
|
|
<div class="deprecationBlock"><span class="deprecatedLabel">Deprecated.</span>
|
|
<div class="deprecationComment">Use <a href="#set(int,int)"><code>set()</code></a> and <a href="#encodeYUV(org.libjpegturbo.turbojpeg.YUVImage)"><code>encodeYUV(YUVImage)</code></a>
|
|
instead.</div>
|
|
</div>
|
|
<dl>
|
|
<dt><span class="throwsLabel">Throws:</span></dt>
|
|
<dd><code><a href="TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></code></dd>
|
|
</dl>
|
|
</li>
|
|
</ul>
|
|
<a id="encodeYUV(int)">
|
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</a>
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|
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<h4>encodeYUV</h4>
|
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<pre class="methodSignature">public <a href="YUVImage.html" title="class in org.libjpegturbo.turbojpeg">YUVImage</a> encodeYUV​(int align)
|
|
throws <a href="TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></pre>
|
|
<div class="block">Encode the 8-bit-per-sample packed-pixel source image associated with this
|
|
compressor instance into an 8-bit-per-sample unified planar YUV image and
|
|
return a <a href="YUVImage.html" title="class in org.libjpegturbo.turbojpeg"><code>YUVImage</code></a> instance containing the encoded image. This
|
|
method performs color conversion (which is accelerated in the
|
|
libjpeg-turbo implementation) but does not execute any of the other steps
|
|
in the JPEG compression process. Encoding CMYK source images into YUV
|
|
images is not supported.</div>
|
|
<dl>
|
|
<dt><span class="paramLabel">Parameters:</span></dt>
|
|
<dd><code>align</code> - row alignment (in bytes) of the YUV image (must be a power of
|
|
2.) Setting this parameter to n will cause each row in each plane of the
|
|
YUV image to be padded to the nearest multiple of n bytes (1 = unpadded.)</dd>
|
|
<dt><span class="returnLabel">Returns:</span></dt>
|
|
<dd>a <a href="YUVImage.html" title="class in org.libjpegturbo.turbojpeg"><code>YUVImage</code></a> instance containing the unified planar YUV
|
|
encoded image</dd>
|
|
<dt><span class="throwsLabel">Throws:</span></dt>
|
|
<dd><code><a href="TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></code></dd>
|
|
</dl>
|
|
</li>
|
|
</ul>
|
|
<a id="encodeYUV(int,int)">
|
|
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|
</a>
|
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<ul class="blockList">
|
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<li class="blockList">
|
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<h4>encodeYUV</h4>
|
|
<pre class="methodSignature">@Deprecated
|
|
public <a href="YUVImage.html" title="class in org.libjpegturbo.turbojpeg">YUVImage</a> encodeYUV​(int align,
|
|
int flags)
|
|
throws <a href="TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></pre>
|
|
<div class="deprecationBlock"><span class="deprecatedLabel">Deprecated.</span>
|
|
<div class="deprecationComment">Use <a href="#set(int,int)"><code>set()</code></a> and <a href="#encodeYUV(int)"><code>encodeYUV(int)</code></a> instead.</div>
|
|
</div>
|
|
<dl>
|
|
<dt><span class="throwsLabel">Throws:</span></dt>
|
|
<dd><code><a href="TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></code></dd>
|
|
</dl>
|
|
</li>
|
|
</ul>
|
|
<a id="encodeYUV(int[])">
|
|
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|
</a>
|
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<ul class="blockList">
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<li class="blockList">
|
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<h4>encodeYUV</h4>
|
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<pre class="methodSignature">public <a href="YUVImage.html" title="class in org.libjpegturbo.turbojpeg">YUVImage</a> encodeYUV​(int[] strides)
|
|
throws <a href="TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></pre>
|
|
<div class="block">Encode the 8-bit-per-sample packed-pixel source image associated with this
|
|
compressor instance into separate 8-bit-per-sample Y, U (Cb), and V (Cr)
|
|
image planes and return a <a href="YUVImage.html" title="class in org.libjpegturbo.turbojpeg"><code>YUVImage</code></a> instance containing the encoded
|
|
image planes. This method performs color conversion (which is accelerated
|
|
in the libjpeg-turbo implementation) but does not execute any of the other
|
|
steps in the JPEG compression process. Encoding CMYK source images into
|
|
YUV images is not supported.</div>
|
|
<dl>
|
|
<dt><span class="paramLabel">Parameters:</span></dt>
|
|
<dd><code>strides</code> - an array of integers, each specifying the number of bytes
|
|
per row in the corresponding plane of the YUV source image. Setting the
|
|
stride for any plane to 0 is the same as setting it to the plane width
|
|
(see <a href="YUVImage.html" title="class in org.libjpegturbo.turbojpeg"><code>YUVImage</code></a>.) If <code>strides</code> is null, then the strides
|
|
for all planes will be set to their respective plane widths. You can
|
|
adjust the strides in order to add an arbitrary amount of row padding to
|
|
each plane.</dd>
|
|
<dt><span class="returnLabel">Returns:</span></dt>
|
|
<dd>a <a href="YUVImage.html" title="class in org.libjpegturbo.turbojpeg"><code>YUVImage</code></a> instance containing the encoded image planes</dd>
|
|
<dt><span class="throwsLabel">Throws:</span></dt>
|
|
<dd><code><a href="TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></code></dd>
|
|
</dl>
|
|
</li>
|
|
</ul>
|
|
<a id="encodeYUV(int[],int)">
|
|
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</a>
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<ul class="blockList">
|
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<li class="blockList">
|
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<h4>encodeYUV</h4>
|
|
<pre class="methodSignature">@Deprecated
|
|
public <a href="YUVImage.html" title="class in org.libjpegturbo.turbojpeg">YUVImage</a> encodeYUV​(int[] strides,
|
|
int flags)
|
|
throws <a href="TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></pre>
|
|
<div class="deprecationBlock"><span class="deprecatedLabel">Deprecated.</span>
|
|
<div class="deprecationComment">Use <a href="#set(int,int)"><code>set()</code></a> and <a href="#encodeYUV(int%5B%5D)"><code>encodeYUV(int[])</code></a> instead.</div>
|
|
</div>
|
|
<dl>
|
|
<dt><span class="throwsLabel">Throws:</span></dt>
|
|
<dd><code><a href="TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></code></dd>
|
|
</dl>
|
|
</li>
|
|
</ul>
|
|
<a id="getCompressedSize()">
|
|
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</a>
|
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<ul class="blockList">
|
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<li class="blockList">
|
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<h4>getCompressedSize</h4>
|
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<pre class="methodSignature">public int getCompressedSize()</pre>
|
|
<div class="block">Returns the size of the image (in bytes) generated by the most recent
|
|
compress operation.</div>
|
|
<dl>
|
|
<dt><span class="returnLabel">Returns:</span></dt>
|
|
<dd>the size of the image (in bytes) generated by the most recent
|
|
compress operation.</dd>
|
|
</dl>
|
|
</li>
|
|
</ul>
|
|
<a id="close()">
|
|
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</a>
|
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<ul class="blockList">
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<li class="blockList">
|
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<h4>close</h4>
|
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<pre class="methodSignature">public void close()
|
|
throws <a href="TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></pre>
|
|
<div class="block">Free the native structures associated with this compressor instance.</div>
|
|
<dl>
|
|
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
|
|
<dd><code>close</code> in interface <code>java.lang.AutoCloseable</code></dd>
|
|
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
|
|
<dd><code>close</code> in interface <code>java.io.Closeable</code></dd>
|
|
<dt><span class="throwsLabel">Throws:</span></dt>
|
|
<dd><code><a href="TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></code></dd>
|
|
</dl>
|
|
</li>
|
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</ul>
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<a id="finalize()">
|
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</a>
|
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<ul class="blockListLast">
|
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<li class="blockList">
|
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<h4>finalize</h4>
|
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<pre class="methodSignature">protected void finalize()
|
|
throws java.lang.Throwable</pre>
|
|
<dl>
|
|
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
|
|
<dd><code>finalize</code> in class <code>java.lang.Object</code></dd>
|
|
<dt><span class="throwsLabel">Throws:</span></dt>
|
|
<dd><code>java.lang.Throwable</code></dd>
|
|
</dl>
|
|
</li>
|
|
</ul>
|
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</li>
|
|
</ul>
|
|
</section>
|
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</li>
|
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</ul>
|
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</div>
|
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</div>
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</main>
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