vp3: fix oob read for negative tokens and memleaks on error.

(cherry picked from commit 8370e426e42f2e4b9d14a1fb8107ecfe5163ce7f)

Fixes: #189
Chromium-Bug: 101172,100465
CVE-2011-3892

Removed the parts that are related to multi-threading, which is not
included before 0.7.

Signed-off-by: Reinhard Tartler <siretart@tauware.de>
(cherry picked from commit c624935554332f8921a15265b8720f0c7b3c8cc2)

Conflicts:

	libavcodec/vp3.c
(cherry picked from commit c9c7db0af2a0fc14764a07f0e61cebf11238e3c2)

Conflicts:

	libavcodec/vp3.c

Signed-off-by: Reinhard Tartler <siretart@tauware.de>
1 file changed