avcodec/takdec: Fix integer overflow in decode_subframe()
Fixes: runtime error: signed integer overflow: -
536870912 -
1972191120 cannot be represented in type 'int'
Fixes: 2711/clusterfuzz-testcase-minimized-
4975142398590976
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit
2c630d159ffe8a9822e81f9c041652762b37e068)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>