shithub: libvpx

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Merge "Modified resize loop constraints."

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

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

@@ -1233,10 +1233,11 @@

   } else {

     // For very small rate targets where the fractional adjustment

     // may be tiny make sure there is at least a minimum range.

-    const int tolerance = (cpi->sf.recode_tolerance * frame_target) / 100;

-    *frame_under_shoot_limit = VPXMAX(frame_target - tolerance - 200, 0);

+    const int tol_low = (cpi->sf.recode_tolerance_low * frame_target) / 100;

+    const int tol_high = (cpi->sf.recode_tolerance_high * frame_target) / 100;

+    *frame_under_shoot_limit = VPXMAX(frame_target - tol_low - 100, 0);

     *frame_over_shoot_limit =

-        VPXMIN(frame_target + tolerance + 200, cpi->rc.max_frame_bandwidth);

+        VPXMIN(frame_target + tol_high + 100, cpi->rc.max_frame_bandwidth);

   }

 }

--- a/vp9/encoder/vp9_speed_features.c

+++ b/vp9/encoder/vp9_speed_features.c

@@ -187,6 +187,9 @@

     sf->intra_uv_mode_mask[TX_32X32] = INTRA_DC_H_V;

     sf->intra_y_mode_mask[TX_16X16] = INTRA_DC_H_V;

     sf->intra_uv_mode_mask[TX_16X16] = INTRA_DC_H_V;

+

+    sf->recode_tolerance_low = 15;

+    sf->recode_tolerance_high = 30;

   }

   if (speed >= 2) {

@@ -206,6 +209,8 @@

     sf->comp_inter_joint_search_thresh = BLOCK_SIZES;

     sf->auto_min_max_partition_size = RELAXED_NEIGHBORING_MIN_MAX;

     sf->allow_partition_search_skip = 1;

+    sf->recode_tolerance_low = 15;

+    sf->recode_tolerance_high = 45;

   }

   if (speed >= 3) {

@@ -608,7 +613,8 @@

   sf->search_type_check_frequency = 50;

   sf->encode_breakout_thresh = 0;

   // Recode loop tolerance %.

-  sf->recode_tolerance = 25;

+  sf->recode_tolerance_low = 12;

+  sf->recode_tolerance_high = 25;

   sf->default_interp_filter = SWITCHABLE;

   sf->simple_model_rd_from_var = 0;

   sf->short_circuit_flat_blocks = 0;

--- a/vp9/encoder/vp9_speed_features.h

+++ b/vp9/encoder/vp9_speed_features.h

@@ -403,7 +403,8 @@

   // This feature controls the tolerence vs target used in deciding whether to

   // recode a frame. It has no meaning if recode is disabled.

-  int recode_tolerance;

+  int recode_tolerance_low;

+  int recode_tolerance_high;

   // This variable controls the maximum block size where intra blocks can be

   // used in inter frames.

-- 

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