handle fixed sample_size patch by Roine Gustafsson <roine AT users.sourceforge.net>

Originally committed as revision 3828 to svn://svn.ffmpeg.org/ffmpeg/trunk

tests/libav.regression.ref

@@ -21,7 +21,7 @@ c83444a0e8ef47b6af1d868d1bb21696 *./data/b-libav.asf
 ./data/b-libav.flv CRC=7b9076f8
 95a85df5f6cc6745235298e56920e3f4 *./data/b-libav.mov
 369865 ./data/b-libav.mov
-./data/b-libav.mov CRC=48f5a90d
+./data/b-libav.mov CRC=da87a90d
 fea20ced22451312dd463110e594eda6 *./data/b-libav.nut
 332415 ./data/b-libav.nut
 ./data/b-libav.nut CRC=001a3415