shithub: libvpx

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vp9: Adjust the threshold to set avg_source_sad_sb flag.

Affect only speed 8. Small/Negligible regression on rtc set.

Change-Id: I67a6b6b4008a22ed798bd980336d95bb799f64b4

--- a/vp9/encoder/vp9_ratectrl.c

+++ b/vp9/encoder/vp9_ratectrl.c

@@ -2246,6 +2246,8 @@

         int num_samples = 0;

         int sb_cols = (cm->mi_cols + MI_BLOCK_SIZE - 1) / MI_BLOCK_SIZE;

         int sb_rows = (cm->mi_rows + MI_BLOCK_SIZE - 1) / MI_BLOCK_SIZE;

+        uint64_t avg_source_sad_threshold = 5000;

+        if (cpi->oxcf.speed >= 8) avg_source_sad_threshold = 10000;

         if (cpi->oxcf.lag_in_frames > 0) {

           src_y = frames[frame]->y_buffer;

           src_ystride = frames[frame]->y_stride;

@@ -2264,7 +2266,8 @@

               tmp_sad = cpi->fn_ptr[bsize].sdf(src_y, src_ystride, last_src_y,

                                                last_src_ystride);

               if (cpi->sf.use_source_sad)

-                cpi->avg_source_sad_sb[num_samples] = tmp_sad < 5000 ? 1 : 0;

+                cpi->avg_source_sad_sb[num_samples] =

+                    tmp_sad < avg_source_sad_threshold ? 1 : 0;

               avg_sad += tmp_sad;

               num_samples++;

             }