Added support for CABAC entropy coding. Added support for B slices. Fixed an issue in rate control constant QP mode. Change-Id: Ib759d35e8e943f941aa9b8bbff0362d92c619994
Change-Id: Ia4f99d5b963acd8d8a1afc2fbdf06b122d898f63
Change-Id: I7efe9a589cd24edf86e8d086b40c27cbbf8b4017