}
}
-// Original activity measure from Tim T's code.
-static unsigned int tt_activity_measure(MACROBLOCK *x) {
- unsigned int sse;
- // TODO: This could also be done over smaller areas (8x8), but that would
- // require extensive changes elsewhere, as lambda is assumed to be fixed
- // over an entire MB in most of the code.
- // Another option is to compute four 8x8 variances, and pick a single
- // lambda using a non-linear combination (e.g., the smallest, or second
- // smallest, etc.).
- const unsigned int act = vp9_variance16x16(x->plane[0].src.buf,
- x->plane[0].src.stride,
- VP9_VAR_OFFS, 0, &sse) << 4;
- // If the region is flat, lower the activity some more.
- return act < (8 << 12) ? MIN(act, 5 << 12) : act;
-}
-
static void update_state(VP9_COMP *cpi, PICK_MODE_CONTEXT *ctx,
int mi_row, int mi_col, BLOCK_SIZE bsize,
int output_enabled) {