@nm
I have tried one method, in which the SAD of the macroblock is used as the complexity and if the SAD is greater than the average, I increase the QP, and vice versa. My idea is to adjust the QP of each MB according to its complexity. And the principle is to move bits of some MBs to others. I hope this can reduce the bitrate or improve the quality of the frame. I think it is an obvious method which is easy to think about. But the tests results are not too good.
As you have mentioned before, the VBV-compliant CBR will reduce the quality and I don't want too much input params.
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