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authorDale Curtis <dalecurtis@chromium.org>2017-11-17 13:35:56 -0800
committerMichael Niedermayer <michael@niedermayer.cc>2017-12-02 00:11:07 +0100
commit6ecf356b4939e23e45a524f668447965d5c6229c (patch)
tree6b1a7fff13efc8e01521ea8fbf78760ca47332c7 /libavcodec/dct.h
parentad780b0b9162a8e25e2915032078b6ef6ce72701 (diff)
downloadffmpeg-6ecf356b4939e23e45a524f668447965d5c6229c.tar.gz
avformat/utils: Prevent undefined shift with wrap_bits > 64.
2LL << (wrap_bits=64 - 1) does not fit in int64_t; change the code to use a uint64_t (2ULL) and add an av_assert2() to ensure wrap_bits <= 64. Signed-off-by: Dale Curtis <dalecurtis@chromium.org> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> (cherry picked from commit 03fbc0daa7e37af024f8b017a28105c32bbe25ca) Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/dct.h')
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