avformat/mov: Check extradata before access
authorMichael Niedermayer <michael@niedermayer.cc>
Tue, 16 Aug 2016 16:07:11 +0000 (18:07 +0200)
committerMichael Niedermayer <michael@niedermayer.cc>
Tue, 16 Aug 2016 17:47:23 +0000 (19:47 +0200)
commitae0192ef5fe8ca67b6532a57f829f744db3facb9
tree6200abf94f224067148b673f3c40702cda71dcbc
parentb438c2025c3e277bb506a3a7b8ec8a0d52ed3b07
avformat/mov: Check extradata before access

Fixes NULL ptr dereference
Fixes Ticket5778

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
libavformat/mov.c