shithub: libvpx

Info  •  Files  •  Log  •  Branches

vp9: Adjust intra check for short_circuit_flat_blocks

For non-rd pickmode: include H and V intra mode check for
spatially flat blocks when the sf->short_circuit_flat_blocks
speed feature is set.
Small improvement on screen content tests.

Change-Id: I3391d02cce6a46160be6ccc8a1e33fd8547eb467

--- a/vp9/encoder/vp9_pickmode.c

+++ b/vp9/encoder/vp9_pickmode.c

@@ -2452,8 +2452,11 @@

       const PREDICTION_MODE this_mode = intra_mode_list[i];

       THR_MODES mode_index = mode_idx[INTRA_FRAME][mode_offset(this_mode)];

       int mode_rd_thresh = rd_threshes[mode_index];

+      // For spatially flat blocks, under short_circuit_flat_blocks flag:

+      // only check DC mode for stationary blocks, otherwise also check

+      // H and V mode.

       if (sf->short_circuit_flat_blocks && x->source_variance == 0 &&

-          this_mode != DC_PRED) {

+          ((x->zero_temp_sad_source && this_mode != DC_PRED) || i > 2)) {

         continue;

       }