Call set_error_per_bit in SSIM rdmult update

This CL improves objective metrics: (midres)
avg_psnr ovr_psnr ssim    ms_ssim
-0.149   -0.038   -0.108  -0.129

Change-Id: I21f3e478f81ead5a3bcce6041f32fbceb53828f3

1 files changed, 7 insertions, 6 deletions

diff --git a/vp9/encoder/vp9_encodeframe.c b/vp9/encoder/vp9_encodeframe.c
index 0e3737f37..9f9abd20f 100644
--- a/vp9/encoder/vp9_encodeframe.c
+++ b/vp9/encoder/vp9_encodeframe.c
@@ -257,8 +257,8 @@ static INLINE void set_mode_info_offsets(VP9_COMMON *const cm,
   x->mbmi_ext = x->mbmi_ext_base + (mi_row * cm->mi_cols + mi_col);
 }
 
-static void set_ssim_rdmult(VP9_COMP *const cpi, int mi_row, int mi_col,
-                            int *rdmult) {
+static void set_ssim_rdmult(VP9_COMP *const cpi, MACROBLOCK *const x,
+                            int mi_row, int mi_col, int *rdmult) {
   const VP9_COMMON *const cm = &cpi->common;
 
   // SSIM rdmult scaling factors are currently 64x64 based.
@@ -273,6 +273,7 @@ static void set_ssim_rdmult(VP9_COMP *const cpi, int mi_row, int mi_col,
   *rdmult =
       (int)((double)(*rdmult) * cpi->mi_ssim_rdmult_scaling_factors[index]);
   *rdmult = VPXMAX(*rdmult, 1);
+  set_error_per_bit(x, *rdmult);
   vpx_clear_system_state();
 }
 
@@ -312,7 +313,7 @@ static void set_offsets(VP9_COMP *cpi, const TileInfo *const tile,
   x->rddiv = cpi->rd.RDDIV;
   x->rdmult = cpi->rd.RDMULT;
   if (oxcf->tuning == VP8_TUNE_SSIM) {
-    set_ssim_rdmult(cpi, mi_row, mi_col, &x->rdmult);
+    set_ssim_rdmult(cpi, x, mi_row, mi_col, &x->rdmult);
   }
 
   // required by vp9_append_sub8x8_mvs_for_idx() and vp9_find_best_ref_mvs()
@@ -1961,7 +1962,7 @@ static void set_segment_rdmult(VP9_COMP *const cpi, MACROBLOCK *const x,
   }
 
   if (oxcf->tuning == VP8_TUNE_SSIM) {
-    set_ssim_rdmult(cpi, mi_row, mi_col, &x->rdmult);
+    set_ssim_rdmult(cpi, x, mi_row, mi_col, &x->rdmult);
   }
 }
 
@@ -2204,7 +2205,7 @@ static void encode_b(VP9_COMP *cpi, const TileInfo *const tile, ThreadData *td,
     const VP9EncoderConfig *const oxcf = &cpi->oxcf;
     x->rdmult = x->cb_rdmult;
     if (oxcf->tuning == VP8_TUNE_SSIM) {
-      set_ssim_rdmult(cpi, mi_row, mi_col, &x->rdmult);
+      set_ssim_rdmult(cpi, x, mi_row, mi_col, &x->rdmult);
     }
   }
 
@@ -3817,7 +3818,7 @@ static void rd_pick_partition(VP9_COMP *cpi, ThreadData *td,
 
   int partition_mul = x->cb_rdmult;
   if (oxcf->tuning == VP8_TUNE_SSIM) {
-    set_ssim_rdmult(cpi, mi_row, mi_col, &partition_mul);
+    set_ssim_rdmult(cpi, x, mi_row, mi_col, &partition_mul);
   }
 
   (void)*tp_orig;