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98ff1fd1
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2022-11-21T20:57:39
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TurboJPEG: Add lossless JPEG detection capability
Add a new TurboJPEG C API function (tjDecompressHeader4()) and Java API
method (TJDecompressor.getFlags()) that return the bitwise OR of any
flags that are relevant to the JPEG image being decompressed (currently
TJFLAG_PROGRESSIVE, TJFLAG_ARITHMETIC, TJFLAG_LOSSLESS, and their Java
equivalents.) This allows a calling program to determine whether the
image being decompressed is a lossless JPEG image, which means that the
decompression scaling feature will not be available and that a
full-sized destination buffer should be allocated.
More specifically, this fixes a buffer overrun in TJBench, TJExample,
and the decompress* fuzz targets that occurred when attempting (in vain)
to decompress a lossless JPEG image with decompression scaling enabled.
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5536ace1
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2021-04-05T21:12:29
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OSS-Fuzz: Fix C++11 compiler warnings in targets
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5dd906be
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2021-04-05T17:47:34
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OSS-Fuzz: Test non-default opts w/ decompress_yuv
The non-default options were not being tested because of a pixel format
comparison buglet. This commit also changes the code in both
decompression fuzz targets such that non-default options are tested
based on the pixel format index rather than the pixel format value,
which is a bit more idiot-proof.
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c81e91e8
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2021-04-05T16:08:22
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TurboJPEG: New flag for limiting prog JPEG scans
This also fixes timeouts reported by OSS-Fuzz.
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6ad658be
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2021-04-02T14:50:35
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OSS-Fuzz: Build fuzz targets using C++ compiler
Otherwise, the targets will require libstdc++, the i386 version of which
is not available in the OSS-Fuzz runtime environment. The OSS-Fuzz
build environment passes -stdlib:libc++ in the CXXFLAGS environment
variable in order to mitigate this issue, since the runtime environment
has the i386 version of libc++, but using that compiler flag requires
using the C++ compiler.
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