* and reuse quality_factor in \c VAEncMiscParameterRateControl
* */
#define VA_RC_QVBR 0x00000400
+/** \brief Average VBR
+ * Average variable bitrate control algorithm focuses on overall encoding
+ * quality while meeting the specified target bitrate, within the accuracy
+ * range, after a convergence period.
+ * bits_per_second in VAEncMiscParameterRateControl is target bitrate for AVBR.
+ * Convergence is specified in the unit of frame.
+ * window_size in VAEncMiscParameterRateControl is equal to convergence for AVBR.
+ * Accuracy is in the range of [1,100], 1 means one percent, and so on.
+ * target_percentage in VAEncMiscParameterRateControl is equal to accuracy for AVBR. */
+#define VA_RC_AVBR 0x00000800
/**@}*/