shithub: libvpx

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Fix the data race caused by vp9 denoiser.

BUG=webm:1391

Change-Id: I9669ae62fe9c695d4c6f9973094cb0f39bed51c7

--- a/vp9/encoder/vp9_denoiser.c

+++ b/vp9/encoder/vp9_denoiser.c

@@ -314,6 +314,7 @@

       block_start(mc_avg.y_buffer, mc_avg.y_stride, mi_row, mi_col);

   struct buf_2d src = mb->plane[0].src;

   int is_skin = 0;

+  int increase_denoising = 0;

   int consec_zeromv = 0;

   mv_col = ctx->best_sse_mv.as_mv.col;

   mv_row = ctx->best_sse_mv.as_mv.row;

@@ -356,22 +357,18 @@

         mb->plane[0].src.stride, mb->plane[1].src.stride, bs, consec_zeromv,

         motion_level);

   }

-  if (!is_skin && denoiser->denoising_level == kDenHigh) {

-    denoiser->increase_denoising = 1;

-  } else {

-    denoiser->increase_denoising = 0;

-  }

+  if (!is_skin && denoiser->denoising_level == kDenHigh) increase_denoising = 1;

   if (denoiser->denoising_level >= kDenLow)

     decision = perform_motion_compensation(

-        denoiser, mb, bs, denoiser->increase_denoising, mi_row, mi_col, ctx,

+        denoiser, mb, bs, increase_denoising, mi_row, mi_col, ctx,

         motion_magnitude, is_skin, &zeromv_filter, consec_zeromv,

         cpi->svc.number_spatial_layers, cpi->Source->y_width);

   if (decision == FILTER_BLOCK) {

-    decision = vp9_denoiser_filter(

-        src.buf, src.stride, mc_avg_start, mc_avg.y_stride, avg_start,

-        avg.y_stride, denoiser->increase_denoising, bs, motion_magnitude);

+    decision = vp9_denoiser_filter(src.buf, src.stride, mc_avg_start,

+                                   mc_avg.y_stride, avg_start, avg.y_stride,

+                                   increase_denoising, bs, motion_magnitude);

   }

   if (decision == FILTER_BLOCK) {

@@ -533,7 +530,6 @@

 #ifdef OUTPUT_YUV_DENOISED

   make_grayscale(&denoiser->running_avg_y[i]);

 #endif

-  denoiser->increase_denoising = 0;

   denoiser->frame_buffer_initialized = 1;

   denoiser->denoising_level = kDenLow;

   denoiser->prev_denoising_level = kDenLow;

--- a/vp9/encoder/vp9_denoiser.h

+++ b/vp9/encoder/vp9_denoiser.h

@@ -38,7 +38,6 @@

   YV12_BUFFER_CONFIG running_avg_y[MAX_REF_FRAMES];

   YV12_BUFFER_CONFIG mc_running_avg_y;

   YV12_BUFFER_CONFIG last_source;

-  int increase_denoising;

   int frame_buffer_initialized;

   int reset;

   VP9_DENOISER_LEVEL denoising_level;