Detailed Description

Attribute value for VAConfigAttribEncROI.

Member Data Documentation

◆ roi_rc_priority_support

uint32_t VAConfigAttribValEncROI::roi_rc_priority_support

A flag indicates whether ROI priority is supported.

roi_rc_priority_support equal to 1 specifies the underlying driver supports ROI priority when VAConfigAttribRateControl != VA_RC_CQP, user can use roi_value in VAEncROI to set ROI priority. roi_rc_priority_support equal to 0 specifies the underlying driver doesn't support ROI priority.

User should ignore roi_rc_priority_support when VAConfigAttribRateControl == VA_RC_CQP because ROI delta QP is always required when VAConfigAttribRateControl == VA_RC_CQP.

◆ roi_rc_qp_delta_support

uint32_t VAConfigAttribValEncROI::roi_rc_qp_delta_support

A flag indicates whether ROI delta QP is supported.

roi_rc_qp_delta_support equal to 1 specifies the underlying driver supports ROI delta QP when VAConfigAttribRateControl != VA_RC_CQP, user can use roi_value in VAEncROI to set ROI delta QP. roi_rc_qp_delta_support equal to 0 specifies the underlying driver doesn't support ROI delta QP.

User should ignore roi_rc_qp_delta_support when VAConfigAttribRateControl == VA_RC_CQP because ROI delta QP is always required when VAConfigAttribRateControl == VA_RC_CQP.

The documentation for this union was generated from the following file:

va.h