[Libva] Getting value of QP used for current picture encoding in H.264 encoder

Xiang, Haihao haihao.xiang at intel.com
Mon Jan 11 00:41:03 PST 2016


> Hi All,
> 
> Is there a way to get the value of the QP used to encode the current
> picture in h.264 encoding ? The following lines are from va.h
> 
> /* 
> * FICTURE_AVE_QP(bit7-0): The average Qp value used during this frame
> 
> #define VA_CODED_BUF_STATUS_PICTURE_AVE_QP_MASK         0xff
> 
> According to the above the field "status" in VACodedBufferSegment
> structure should contain this value but it is always 0 when I check
> this.

Are you using intel driver? The driver doesn't support this feature. If
you want this feature, please file a bug to track this issue.

Thanks
Haihao

> 
> Regards
> Hamza Shahid
> 
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