mov: Fix negative size calculation in mov_read_default().
authorDale Curtis <dalecurtis@chromium.org>
Tue, 6 Jan 2015 00:34:17 +0000 (16:34 -0800)
committerMichael Niedermayer <michaelni@gmx.at>
Fri, 9 Jan 2015 16:18:40 +0000 (17:18 +0100)
commit54b76eb5951502d24618c335d0bb275f70d31f3c
treef5b41833dc88be7ab9f855b503689ced724d6cbe
parent0787163cf369f114862bc7402b8410ff32bdef37
mov: Fix negative size calculation in mov_read_default().

The previous code assumed if an atom was marked with a 64-bit
size extension, it actually had that data available. The new
code verfies there's enough data in the atom for this to be
done.

Failure to verify causes total_size > atom.size which will
result in negative size calculations later on.

Found-by: Paul Mehta <paul@paulmehta.com>
Signed-off-by: Dale Curtis <dalecurtis@chromium.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 3ebd76a9c57558e284e94da367dd23b435e6a6d0)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
libavformat/mov.c