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authorNick Renieris <velocityra@gmail.com>2019-08-29 16:10:44 +0300
committerPaul B Mahol <onemda@gmail.com>2019-09-02 09:26:52 +0200
commit03f95403eb1105be50a983ef8dd135927d39f407 (patch)
tree31611747408b083093ccd7fad469daf957ee08fb /libavutil/pca.h
parent6763192cff8fa62072e9add2230ecf16e5b850f3 (diff)
downloadffmpeg-03f95403eb1105be50a983ef8dd135927d39f407.tar.gz
lavc/jpegtables: Handle multiple mappings to the same value
Some JPEGs [1] have incorrect DHT entries that map 2 codes to the same value. The second (last) mapping does not ever actually appear in the code stream, therefore ignoring any mappings after the first one fixes this. Without this, an "mjpeg_decode_dc: bad vlc: 0:0" error is thrown. In all known files, the 2 codes are mapped to symbol 0 so only that case is checked. [1]: Embedded JPEGs in "X7 RAW" and "X7 CinemaDNG" samples here: https://www.dji.com/gr/zenmuse-x7/info#downloads Signed-off-by: Nick Renieris <velocityra@gmail.com>
Diffstat (limited to 'libavutil/pca.h')
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