#12489: libjpeg-turbo-2.0.3
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Reporter: bdubbs | Owner: bdubbs
Type: enhancement | Status: assigned
Priority: normal | Milestone: 9.1
Component: BOOK | Version: SVN
Severity: normal | Resolution:
Keywords: |
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Comment (by bdubbs):
### Significant changes relative to 2.0.2:
1. Fixed "using JNI after critical get" errors that occurred on Android
platforms when passing invalid arguments to certain methods in the
TurboJPEG
Java API.
2. Fixed a regression in the SIMD feature detection code, introduced by
the AVX2 SIMD extensions (2.0 beta1[1]), that was known to cause an
illegal
instruction exception, in rare cases, on CPUs that lack support for
CPUID leaf
07H (or on which the maximum CPUID leaf has been limited by way of a
BIOS
setting.)
3. The 4:4:0 (h1v2) fancy (smooth) chroma upsampling algorithm in the
decompressor now uses a similar bias pattern to that of the 4:2:2
(h2v1) fancy
chroma upsampling algorithm, rounding up or down the upsampled result
for
alternate pixels rather than always rounding down. This ensures that,
regardless of whether a 4:2:2 JPEG image is rotated or transposed prior
to
decompression (in the frequency domain) or after decompression (in the
spatial
domain), the final image will be similar.
4. Fixed an integer overflow and subsequent segfault that occurred when
attempting to compress or decompress images with more than 1 billion
pixels
using the TurboJPEG API.
5. Fixed a regression introduced by 2.0 beta1[15] whereby attempting to
generate a progressive JPEG image on an SSE2-capable CPU using a scan
script
containing one or more scans with lengths divisible by 16 would result
in an
error ("Missing Huffman code table entry") and an invalid JPEG image.
6. Fixed an issue whereby `tjDecodeYUV()` and `tjDecodeYUVPlanes()` would
throw
an error ("Invalid progressive parameters") or a warning ("Inconsistent
progression sequence") if passed a TurboJPEG instance that was
previously used
to decompress a progressive JPEG image.
--
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