TurboJPEG: 8-bit lossless JPEG support
This commit is contained in:
DRC
@@ -175,167 +175,174 @@
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<td class="colLast"><code>32768</code></td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><a name="org.libjpegturbo.turbojpeg.TJ.FLAG_LOSSLESS">
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<!-- -->
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</a><code>public static final int</code></td>
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<td><code><a href="org/libjpegturbo/turbojpeg/TJ.html#FLAG_LOSSLESS">FLAG_LOSSLESS</a></code></td>
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<td class="colLast"><code>131072</code></td>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><a name="org.libjpegturbo.turbojpeg.TJ.FLAG_PROGRESSIVE">
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<!-- -->
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</a><code>public static final int</code></td>
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<td><code><a href="org/libjpegturbo/turbojpeg/TJ.html#FLAG_PROGRESSIVE">FLAG_PROGRESSIVE</a></code></td>
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<td class="colLast"><code>16384</code></td>
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</tr>
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<tr class="altColor">
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<tr class="rowColor">
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<td class="colFirst"><a name="org.libjpegturbo.turbojpeg.TJ.FLAG_STOPONWARNING">
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<!-- -->
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</a><code>public static final int</code></td>
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<td><code><a href="org/libjpegturbo/turbojpeg/TJ.html#FLAG_STOPONWARNING">FLAG_STOPONWARNING</a></code></td>
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<td class="colLast"><code>8192</code></td>
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</tr>
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<tr class="rowColor">
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<tr class="altColor">
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<td class="colFirst"><a name="org.libjpegturbo.turbojpeg.TJ.NUMCS">
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<!-- -->
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</a><code>public static final int</code></td>
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<td><code><a href="org/libjpegturbo/turbojpeg/TJ.html#NUMCS">NUMCS</a></code></td>
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<td class="colLast"><code>5</code></td>
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</tr>
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<tr class="altColor">
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<tr class="rowColor">
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<td class="colFirst"><a name="org.libjpegturbo.turbojpeg.TJ.NUMERR">
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<!-- -->
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</a><code>public static final int</code></td>
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<td><code><a href="org/libjpegturbo/turbojpeg/TJ.html#NUMERR">NUMERR</a></code></td>
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<td class="colLast"><code>2</code></td>
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</tr>
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<tr class="rowColor">
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<tr class="altColor">
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<td class="colFirst"><a name="org.libjpegturbo.turbojpeg.TJ.NUMPF">
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<!-- -->
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</a><code>public static final int</code></td>
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<td><code><a href="org/libjpegturbo/turbojpeg/TJ.html#NUMPF">NUMPF</a></code></td>
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<td class="colLast"><code>12</code></td>
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</tr>
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<tr class="altColor">
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<tr class="rowColor">
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<td class="colFirst"><a name="org.libjpegturbo.turbojpeg.TJ.NUMSAMP">
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<!-- -->
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</a><code>public static final int</code></td>
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<td><code><a href="org/libjpegturbo/turbojpeg/TJ.html#NUMSAMP">NUMSAMP</a></code></td>
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<td class="colLast"><code>6</code></td>
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</tr>
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<tr class="rowColor">
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<tr class="altColor">
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<td class="colFirst"><a name="org.libjpegturbo.turbojpeg.TJ.PF_ABGR">
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<!-- -->
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</a><code>public static final int</code></td>
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<td><code><a href="org/libjpegturbo/turbojpeg/TJ.html#PF_ABGR">PF_ABGR</a></code></td>
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<td class="colLast"><code>9</code></td>
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</tr>
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<tr class="altColor">
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<tr class="rowColor">
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<td class="colFirst"><a name="org.libjpegturbo.turbojpeg.TJ.PF_ARGB">
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<!-- -->
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</a><code>public static final int</code></td>
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<td><code><a href="org/libjpegturbo/turbojpeg/TJ.html#PF_ARGB">PF_ARGB</a></code></td>
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<td class="colLast"><code>10</code></td>
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</tr>
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<tr class="rowColor">
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<tr class="altColor">
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<td class="colFirst"><a name="org.libjpegturbo.turbojpeg.TJ.PF_BGR">
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<!-- -->
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</a><code>public static final int</code></td>
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<td><code><a href="org/libjpegturbo/turbojpeg/TJ.html#PF_BGR">PF_BGR</a></code></td>
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<td class="colLast"><code>1</code></td>
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</tr>
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<tr class="altColor">
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<tr class="rowColor">
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<td class="colFirst"><a name="org.libjpegturbo.turbojpeg.TJ.PF_BGRA">
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<!-- -->
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</a><code>public static final int</code></td>
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<td><code><a href="org/libjpegturbo/turbojpeg/TJ.html#PF_BGRA">PF_BGRA</a></code></td>
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<td class="colLast"><code>8</code></td>
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</tr>
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<tr class="rowColor">
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<tr class="altColor">
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<td class="colFirst"><a name="org.libjpegturbo.turbojpeg.TJ.PF_BGRX">
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<!-- -->
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</a><code>public static final int</code></td>
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<td><code><a href="org/libjpegturbo/turbojpeg/TJ.html#PF_BGRX">PF_BGRX</a></code></td>
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<td class="colLast"><code>3</code></td>
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</tr>
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<tr class="altColor">
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<tr class="rowColor">
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<td class="colFirst"><a name="org.libjpegturbo.turbojpeg.TJ.PF_CMYK">
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<!-- -->
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</a><code>public static final int</code></td>
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<td><code><a href="org/libjpegturbo/turbojpeg/TJ.html#PF_CMYK">PF_CMYK</a></code></td>
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<td class="colLast"><code>11</code></td>
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</tr>
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<tr class="rowColor">
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<tr class="altColor">
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<td class="colFirst"><a name="org.libjpegturbo.turbojpeg.TJ.PF_GRAY">
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<!-- -->
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</a><code>public static final int</code></td>
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<td><code><a href="org/libjpegturbo/turbojpeg/TJ.html#PF_GRAY">PF_GRAY</a></code></td>
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<td class="colLast"><code>6</code></td>
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</tr>
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<tr class="altColor">
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<tr class="rowColor">
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<td class="colFirst"><a name="org.libjpegturbo.turbojpeg.TJ.PF_RGB">
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<!-- -->
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</a><code>public static final int</code></td>
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<td><code><a href="org/libjpegturbo/turbojpeg/TJ.html#PF_RGB">PF_RGB</a></code></td>
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<td class="colLast"><code>0</code></td>
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</tr>
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<tr class="rowColor">
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<tr class="altColor">
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<td class="colFirst"><a name="org.libjpegturbo.turbojpeg.TJ.PF_RGBA">
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<!-- -->
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</a><code>public static final int</code></td>
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<td><code><a href="org/libjpegturbo/turbojpeg/TJ.html#PF_RGBA">PF_RGBA</a></code></td>
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<td class="colLast"><code>7</code></td>
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</tr>
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<tr class="altColor">
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<tr class="rowColor">
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<td class="colFirst"><a name="org.libjpegturbo.turbojpeg.TJ.PF_RGBX">
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<!-- -->
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</a><code>public static final int</code></td>
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<td><code><a href="org/libjpegturbo/turbojpeg/TJ.html#PF_RGBX">PF_RGBX</a></code></td>
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<td class="colLast"><code>2</code></td>
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</tr>
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<tr class="rowColor">
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<tr class="altColor">
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<td class="colFirst"><a name="org.libjpegturbo.turbojpeg.TJ.PF_XBGR">
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<!-- -->
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</a><code>public static final int</code></td>
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<td><code><a href="org/libjpegturbo/turbojpeg/TJ.html#PF_XBGR">PF_XBGR</a></code></td>
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<td class="colLast"><code>4</code></td>
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</tr>
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<tr class="altColor">
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<tr class="rowColor">
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<td class="colFirst"><a name="org.libjpegturbo.turbojpeg.TJ.PF_XRGB">
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<!-- -->
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</a><code>public static final int</code></td>
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<td><code><a href="org/libjpegturbo/turbojpeg/TJ.html#PF_XRGB">PF_XRGB</a></code></td>
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<td class="colLast"><code>5</code></td>
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</tr>
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<tr class="rowColor">
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<tr class="altColor">
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<td class="colFirst"><a name="org.libjpegturbo.turbojpeg.TJ.SAMP_411">
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<!-- -->
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</a><code>public static final int</code></td>
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<td><code><a href="org/libjpegturbo/turbojpeg/TJ.html#SAMP_411">SAMP_411</a></code></td>
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<td class="colLast"><code>5</code></td>
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</tr>
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<tr class="altColor">
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<tr class="rowColor">
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<td class="colFirst"><a name="org.libjpegturbo.turbojpeg.TJ.SAMP_420">
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<!-- -->
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</a><code>public static final int</code></td>
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<td><code><a href="org/libjpegturbo/turbojpeg/TJ.html#SAMP_420">SAMP_420</a></code></td>
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<td class="colLast"><code>2</code></td>
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</tr>
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<tr class="rowColor">
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<tr class="altColor">
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<td class="colFirst"><a name="org.libjpegturbo.turbojpeg.TJ.SAMP_422">
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<!-- -->
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</a><code>public static final int</code></td>
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<td><code><a href="org/libjpegturbo/turbojpeg/TJ.html#SAMP_422">SAMP_422</a></code></td>
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<td class="colLast"><code>1</code></td>
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</tr>
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<tr class="altColor">
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<tr class="rowColor">
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<td class="colFirst"><a name="org.libjpegturbo.turbojpeg.TJ.SAMP_440">
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<!-- -->
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</a><code>public static final int</code></td>
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<td><code><a href="org/libjpegturbo/turbojpeg/TJ.html#SAMP_440">SAMP_440</a></code></td>
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<td class="colLast"><code>4</code></td>
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</tr>
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<tr class="rowColor">
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<tr class="altColor">
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<td class="colFirst"><a name="org.libjpegturbo.turbojpeg.TJ.SAMP_444">
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<!-- -->
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</a><code>public static final int</code></td>
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<td><code><a href="org/libjpegturbo/turbojpeg/TJ.html#SAMP_444">SAMP_444</a></code></td>
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<td class="colLast"><code>0</code></td>
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</tr>
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<tr class="altColor">
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<tr class="rowColor">
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<td class="colFirst"><a name="org.libjpegturbo.turbojpeg.TJ.SAMP_GRAY">
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<!-- -->
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</a><code>public static final int</code></td>
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@@ -262,6 +262,10 @@
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<div class="block">Limit the number of progressive JPEG scans that the decompression and
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transform operations will process.</div>
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</dd>
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<dt><span class="strong"><a href="./org/libjpegturbo/turbojpeg/TJ.html#FLAG_LOSSLESS">FLAG_LOSSLESS</a></span> - Static variable in class org.libjpegturbo.turbojpeg.<a href="./org/libjpegturbo/turbojpeg/TJ.html" title="class in org.libjpegturbo.turbojpeg">TJ</a></dt>
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<dd>
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<div class="block">Generate a lossless JPEG image when compressing.</div>
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</dd>
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<dt><span class="strong"><a href="./org/libjpegturbo/turbojpeg/TJ.html#FLAG_PROGRESSIVE">FLAG_PROGRESSIVE</a></span> - Static variable in class org.libjpegturbo.turbojpeg.<a href="./org/libjpegturbo/turbojpeg/TJ.html" title="class in org.libjpegturbo.turbojpeg">TJ</a></dt>
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<dd>
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<div class="block">Use progressive entropy coding in JPEG images generated by compression and
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@@ -204,145 +204,151 @@ extends java.lang.Object</pre>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><code>static int</code></td>
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<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJ.html#FLAG_LOSSLESS">FLAG_LOSSLESS</a></strong></code>
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<div class="block">Generate a lossless JPEG image when compressing.</div>
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</td>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><code>static int</code></td>
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<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJ.html#FLAG_PROGRESSIVE">FLAG_PROGRESSIVE</a></strong></code>
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<div class="block">Use progressive entropy coding in JPEG images generated by compression and
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transform operations.</div>
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</td>
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</tr>
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<tr class="altColor">
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<tr class="rowColor">
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<td class="colFirst"><code>static int</code></td>
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<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJ.html#FLAG_STOPONWARNING">FLAG_STOPONWARNING</a></strong></code>
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<div class="block">Immediately discontinue the current compression/decompression/transform
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operation if the underlying codec throws a warning (non-fatal error).</div>
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</td>
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</tr>
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<tr class="rowColor">
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<tr class="altColor">
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<td class="colFirst"><code>static int</code></td>
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<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJ.html#NUMCS">NUMCS</a></strong></code>
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<div class="block">The number of JPEG colorspaces</div>
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</td>
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</tr>
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<tr class="altColor">
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<tr class="rowColor">
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<td class="colFirst"><code>static int</code></td>
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<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJ.html#NUMERR">NUMERR</a></strong></code>
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<div class="block">The number of error codes</div>
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</td>
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</tr>
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<tr class="rowColor">
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<tr class="altColor">
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<td class="colFirst"><code>static int</code></td>
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<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJ.html#NUMPF">NUMPF</a></strong></code>
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<div class="block">The number of pixel formats</div>
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</td>
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</tr>
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<tr class="altColor">
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<tr class="rowColor">
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<td class="colFirst"><code>static int</code></td>
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<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJ.html#NUMSAMP">NUMSAMP</a></strong></code>
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<div class="block">The number of chrominance subsampling options</div>
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</td>
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</tr>
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<tr class="rowColor">
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<tr class="altColor">
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<td class="colFirst"><code>static int</code></td>
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<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJ.html#PF_ABGR">PF_ABGR</a></strong></code>
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<div class="block">ABGR pixel format.</div>
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</td>
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</tr>
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<tr class="altColor">
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<tr class="rowColor">
|
||||
<td class="colFirst"><code>static int</code></td>
|
||||
<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJ.html#PF_ARGB">PF_ARGB</a></strong></code>
|
||||
<div class="block">ARGB pixel format.</div>
|
||||
</td>
|
||||
</tr>
|
||||
<tr class="rowColor">
|
||||
<tr class="altColor">
|
||||
<td class="colFirst"><code>static int</code></td>
|
||||
<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJ.html#PF_BGR">PF_BGR</a></strong></code>
|
||||
<div class="block">BGR pixel format.</div>
|
||||
</td>
|
||||
</tr>
|
||||
<tr class="altColor">
|
||||
<tr class="rowColor">
|
||||
<td class="colFirst"><code>static int</code></td>
|
||||
<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJ.html#PF_BGRA">PF_BGRA</a></strong></code>
|
||||
<div class="block">BGRA pixel format.</div>
|
||||
</td>
|
||||
</tr>
|
||||
<tr class="rowColor">
|
||||
<tr class="altColor">
|
||||
<td class="colFirst"><code>static int</code></td>
|
||||
<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJ.html#PF_BGRX">PF_BGRX</a></strong></code>
|
||||
<div class="block">BGRX pixel format.</div>
|
||||
</td>
|
||||
</tr>
|
||||
<tr class="altColor">
|
||||
<tr class="rowColor">
|
||||
<td class="colFirst"><code>static int</code></td>
|
||||
<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJ.html#PF_CMYK">PF_CMYK</a></strong></code>
|
||||
<div class="block">CMYK pixel format.</div>
|
||||
</td>
|
||||
</tr>
|
||||
<tr class="rowColor">
|
||||
<tr class="altColor">
|
||||
<td class="colFirst"><code>static int</code></td>
|
||||
<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJ.html#PF_GRAY">PF_GRAY</a></strong></code>
|
||||
<div class="block">Grayscale pixel format.</div>
|
||||
</td>
|
||||
</tr>
|
||||
<tr class="altColor">
|
||||
<tr class="rowColor">
|
||||
<td class="colFirst"><code>static int</code></td>
|
||||
<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJ.html#PF_RGB">PF_RGB</a></strong></code>
|
||||
<div class="block">RGB pixel format.</div>
|
||||
</td>
|
||||
</tr>
|
||||
<tr class="rowColor">
|
||||
<tr class="altColor">
|
||||
<td class="colFirst"><code>static int</code></td>
|
||||
<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJ.html#PF_RGBA">PF_RGBA</a></strong></code>
|
||||
<div class="block">RGBA pixel format.</div>
|
||||
</td>
|
||||
</tr>
|
||||
<tr class="altColor">
|
||||
<tr class="rowColor">
|
||||
<td class="colFirst"><code>static int</code></td>
|
||||
<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJ.html#PF_RGBX">PF_RGBX</a></strong></code>
|
||||
<div class="block">RGBX pixel format.</div>
|
||||
</td>
|
||||
</tr>
|
||||
<tr class="rowColor">
|
||||
<tr class="altColor">
|
||||
<td class="colFirst"><code>static int</code></td>
|
||||
<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJ.html#PF_XBGR">PF_XBGR</a></strong></code>
|
||||
<div class="block">XBGR pixel format.</div>
|
||||
</td>
|
||||
</tr>
|
||||
<tr class="altColor">
|
||||
<tr class="rowColor">
|
||||
<td class="colFirst"><code>static int</code></td>
|
||||
<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJ.html#PF_XRGB">PF_XRGB</a></strong></code>
|
||||
<div class="block">XRGB pixel format.</div>
|
||||
</td>
|
||||
</tr>
|
||||
<tr class="rowColor">
|
||||
<tr class="altColor">
|
||||
<td class="colFirst"><code>static int</code></td>
|
||||
<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJ.html#SAMP_411">SAMP_411</a></strong></code>
|
||||
<div class="block">4:1:1 chrominance subsampling.</div>
|
||||
</td>
|
||||
</tr>
|
||||
<tr class="altColor">
|
||||
<tr class="rowColor">
|
||||
<td class="colFirst"><code>static int</code></td>
|
||||
<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJ.html#SAMP_420">SAMP_420</a></strong></code>
|
||||
<div class="block">4:2:0 chrominance subsampling.</div>
|
||||
</td>
|
||||
</tr>
|
||||
<tr class="rowColor">
|
||||
<tr class="altColor">
|
||||
<td class="colFirst"><code>static int</code></td>
|
||||
<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJ.html#SAMP_422">SAMP_422</a></strong></code>
|
||||
<div class="block">4:2:2 chrominance subsampling.</div>
|
||||
</td>
|
||||
</tr>
|
||||
<tr class="altColor">
|
||||
<tr class="rowColor">
|
||||
<td class="colFirst"><code>static int</code></td>
|
||||
<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJ.html#SAMP_440">SAMP_440</a></strong></code>
|
||||
<div class="block">4:4:0 chrominance subsampling.</div>
|
||||
</td>
|
||||
</tr>
|
||||
<tr class="rowColor">
|
||||
<tr class="altColor">
|
||||
<td class="colFirst"><code>static int</code></td>
|
||||
<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJ.html#SAMP_444">SAMP_444</a></strong></code>
|
||||
<div class="block">4:4:4 chrominance subsampling (no chrominance subsampling).</div>
|
||||
</td>
|
||||
</tr>
|
||||
<tr class="altColor">
|
||||
<tr class="rowColor">
|
||||
<td class="colFirst"><code>static int</code></td>
|
||||
<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJ.html#SAMP_GRAY">SAMP_GRAY</a></strong></code>
|
||||
<div class="block">Grayscale.</div>
|
||||
@@ -978,6 +984,31 @@ extends java.lang.Object</pre>
|
||||
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../constant-values.html#org.libjpegturbo.turbojpeg.TJ.FLAG_ARITHMETIC">Constant Field Values</a></dd></dl>
|
||||
</li>
|
||||
</ul>
|
||||
<a name="FLAG_LOSSLESS">
|
||||
<!-- -->
|
||||
</a>
|
||||
<ul class="blockList">
|
||||
<li class="blockList">
|
||||
<h4>FLAG_LOSSLESS</h4>
|
||||
<pre>public static final int FLAG_LOSSLESS</pre>
|
||||
<div class="block">Generate a lossless JPEG image when compressing. In most cases,
|
||||
compressing and decompressing lossless JPEG images is considerably slower
|
||||
than compressing and decompressing lossy JPEG images. Also note that the
|
||||
following features are not available with lossless JPEG images:
|
||||
<ul>
|
||||
<li> Colorspace conversion
|
||||
<li> Chrominance subsampling
|
||||
<li> JPEG quality selection
|
||||
<li> DCT/IDCT algorithm selection
|
||||
<li> Progressive entropy coding
|
||||
<li> Arithmetic entropy coding
|
||||
<li> Compression from/decompression to YUV planar images
|
||||
<li> Decompression scaling
|
||||
<li> Lossless transformations
|
||||
</ul></div>
|
||||
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../constant-values.html#org.libjpegturbo.turbojpeg.TJ.FLAG_LOSSLESS">Constant Field Values</a></dd></dl>
|
||||
</li>
|
||||
</ul>
|
||||
<a name="NUMERR">
|
||||
<!-- -->
|
||||
</a>
|
||||
|
||||
@@ -471,7 +471,14 @@ implements java.io.Closeable</pre>
|
||||
<pre>public void setJPEGQuality(int quality)</pre>
|
||||
<div class="block">Set the JPEG image quality level for subsequent compress operations.</div>
|
||||
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>quality</code> - the new JPEG image quality level (1 to 100, 1 = worst,
|
||||
100 = best)</dd></dl>
|
||||
100 = best.) When generating a lossless JPEG image (see
|
||||
<a href="../../../org/libjpegturbo/turbojpeg/TJ.html#FLAG_LOSSLESS"><code>TJ.FLAG_LOSSLESS</code></a>), <code>quality</code> is
|
||||
<code>psv * 10 + Pt</code>, where <code>psv</code> is the predictor
|
||||
selection value (1-7) and <code>Pt</code> is the point transform (0-7). A
|
||||
point transform value of 0 is necessary in order to create a fully
|
||||
lossless JPEG image. (A non-zero point transform value right-shifts the
|
||||
input samples by the specified number of bits, which is effectively a form
|
||||
of lossy color quantization.)</dd></dl>
|
||||
</li>
|
||||
</ul>
|
||||
<a name="compress(byte[], int)">
|
||||
|
||||
Reference in New Issue
Block a user