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tjDecompressHeader3(): Accept tables-only streams

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Inspired by:
b3b15cfe74

Closes #604
Closes #605
This commit is contained in:
DRC
2022-06-24 14:03:03 -05:00
parent a405519e96
commit ba22c0f76d
17 changed files with 81 additions and 38 deletions
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20
java/doc/org/libjpegturbo/turbojpeg/TJDecompressor.html
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@@ -418,7 +418,8 @@ implements java.io.Closeable</pre>
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#setSourceImage(byte[],%20int)">setSourceImage</a></strong>(byte[]&nbsp;jpegImage,
int&nbsp;imageSize)</code>
<div class="block">Associate the JPEG image of length <code>imageSize</code> bytes stored in
<div class="block">Associate the JPEG image or "abbreviated table specification" (AKA
"tables-only") datastream of length <code>imageSize</code> bytes stored in
<code>jpegImage</code> with this decompressor instance.</div>
</td>
</tr>
@@ -611,10 +612,19 @@ implements java.io.Closeable</pre>
<pre>public&nbsp;void&nbsp;setSourceImage(byte[]&nbsp;jpegImage,
int&nbsp;imageSize)
throws <a href="../../../org/libjpegturbo/turbojpeg/TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></pre>
<div class="block">Associate the JPEG image of length <code>imageSize</code> bytes stored in
<code>jpegImage</code> with this decompressor instance. This image will
be used as the source image for subsequent decompress operations.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>jpegImage</code> - JPEG image buffer. This buffer is not modified.</dd><dd><code>imageSize</code> - size of the JPEG image (in bytes)</dd>
<div class="block">Associate the JPEG image or "abbreviated table specification" (AKA
"tables-only") datastream of length <code>imageSize</code> bytes stored in
<code>jpegImage</code> with this decompressor instance. If
<code>jpegImage</code> contains a JPEG image, then this image will be used
as the source image for subsequent decompress operations. Passing a
tables-only datastream to this method primes the decompressor with
quantization and Huffman tables that can be used when decompressing
subsequent "abbreviated image" datastreams. This is useful, for instance,
when decompressing video streams in which all frames share the same
quantization and Huffman tables.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>jpegImage</code> - buffer containing a JPEG image or an "abbreviated table
specification" (AKA "tables-only") datastream. This buffer is not
modified.</dd><dd><code>imageSize</code> - size of the JPEG image (in bytes)</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../org/libjpegturbo/turbojpeg/TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></code></dd></dl>
</li>