Fixes ticket #2835. Signed-off-by: Peter Ross <pross@xvid.org> Signed-off-by: Michael Niedermayer <michaelni@gmx.at> (cherry picked from commit 6da21c1f8190d674fd1e5619bb148c1bbab8ca3c) Conflicts: tests/ref/lavf/wtv tests/ref/seek/lavf-wtv