|This is the index plus one of the last non-zero coeff for each of the blocks in the current macroblock. |
|For coeff decode, we need to know whether the above block had non-zero coefficients. |
For coeff decode, we need to know whether the above block had non-zero coefficients.
This means for each macroblock, we need data for 4 luma blocks, 2 u blocks, 2 v blocks, and the luma dc block, for a total of 9 per macroblock. We keep the last row in top_nnz.
Referenced by vp8_decode_mb_row_no_filter().