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| author | Dale Curtis <dalecurtis@chromium.org> | 2017-11-17 16:05:30 -0800 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2018-01-08 23:19:14 +0100 |
| commit | 13763f71926057e57ddd75b7c8ff93e6ab23f8ab (patch) | |
| tree | a0ef907ed1eb5fe8070792bc73dcfd4ba96f8a18 /libavcodec/avdct.c | |
| parent | 380515e5b9581fa9852f2c8fac091ec67c03c358 (diff) | |
| download | ffmpeg-13763f71926057e57ddd75b7c8ff93e6ab23f8ab.tar.gz | |
Fix undefined shift on assumed 8-bit input.
decode_user_data() attempts to create an integer |build|
value with 8 bits of spacing for 3 components. However
each component is an int32_t, so shifting each component
is undefined for values outside of the 8 bit range.
This patch simply clamps input to 8-bits per component
and prints out a warning that the values were clamped.
Signed-off-by: Dale Curtis <dalecurtis@chromium.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 7010dd98b575d2e39fca947e609b85be7490b269)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/avdct.c')
0 files changed, 0 insertions, 0 deletions