avcodec/movtextdec: Make tx3g_ptr unsigned
authorMichael Niedermayer <michael@niedermayer.cc>
Mon, 31 Aug 2015 21:01:23 +0000 (23:01 +0200)
committerMichael Niedermayer <michael@niedermayer.cc>
Mon, 31 Aug 2015 21:44:39 +0000 (23:44 +0200)
commita1a32fdb0ee63783d06c63b7d90bb382eea356ce
treee6536a1dce0591de50c130f3af9752a063573908
parentbaeb8f5f7149a5287f015f145eeb3ab18e2bc43c
avcodec/movtextdec: Make tx3g_ptr unsigned

Fixes integer overflow
Fixes: efe937780e95574250dabe07151bdc23/unknown_unknown_351_849_cov_3187578556_shellymanne.mov

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
libavcodec/movtextdec.c