Video B rate control configuration register0.
B_QP | Configures video B frame level initial luma QP value. |
B_RATE_CTRL_U | Configures video B parameter U value. U = int((float) u << 8). |
B_MB_RATE_CTRL_EN | Configures video A whether or not to open macro block rate ctrl.\1:Open the macro block rate ctrl\1:Close the macro block rate ctrl. |