vc1dec: prevent a crash due missing pred_flag parameter

Handle pred_flag parameter not given to get_mvdata_interlaced()

Signed-off-by: Vladimir Pantelic <vladoman@gmail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
(cherry picked from commit 7b8c5b263bc680eff5710bee5994de39d47fc15e)

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
zmbv: Reset the decoder on keyframe errors

Prevent the crash on fuzzed files as reported in bug 63.
(cherry picked from commit c1d1ef4ecd9c4f1ca01c8149c7e57c14968ca588)

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
configure: enable pic for shared libs on AArch64

Signed-off-by: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
Signed-off-by: Martin Storsjö <martin@martin.st>
(cherry picked from commit d11cb13b0ef02fb1c303b29805819f6e1c9dc61b)

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>