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Revert "vp9: Avoid encoder loopfilter for non-reference frames."

This reverts commit 863f860bfcf3bdc26eeecb299aa481d0f63d11ac.

This causes encoder / decoder mismatches in various
VP9/DatarateTestVP9Large.BasicRateTargeting3TemporalLayers tests

BUG=webm:1408

Change-Id: Ic200c39d7ed9c0b0247ef562f5d6f7b2625f7e14

--- a/test/datarate_test.cc

+++ b/test/datarate_test.cc

@@ -1221,10 +1221,9 @@

   }

 }

-// Check basic rate targeting for 1 pass CBR SVC: 2 spatial layers and 1

-// temporal layer, with screen content mode on and same speed setting for all

-// layers.

-TEST_P(DatarateOnePassCbrSvc, OnePassCbrSvc2SL1TLScreenContent1) {

+// Check basic rate targeting for 1 pass CBR SVC: 2 spatial layers and 1temporal

+// layer, with screen content mode on and same speed setting for all layers.

+TEST_P(DatarateOnePassCbrSvc, OnePassCbrSvc2patialLayersScreenContent1) {

   cfg_.rc_buf_initial_sz = 500;

   cfg_.rc_buf_optimal_sz = 500;

   cfg_.rc_buf_sz = 1000;

@@ -1242,7 +1241,7 @@

   svc_params_.scaling_factor_den[0] = 288;

   svc_params_.scaling_factor_num[1] = 288;

   svc_params_.scaling_factor_den[1] = 288;

-  cfg_.rc_dropframe_thresh = 10;

+  cfg_.rc_dropframe_thresh = 0;

   cfg_.kf_max_dist = 9999;

   ::libvpx_test::Y4mVideoSource video("niklas_1280_720_30.y4m", 0, 300);

   cfg_.rc_target_bitrate = 500;

@@ -1257,7 +1256,7 @@

 // Check basic rate targeting for 1 pass CBR SVC: 2 spatial layers and

 // 3 temporal layers. Run CIF clip with 1 thread.

-TEST_P(DatarateOnePassCbrSvc, OnePassCbrSvc2SL3TL) {

+TEST_P(DatarateOnePassCbrSvc, OnePassCbrSvc2SpatialLayers) {

   cfg_.rc_buf_initial_sz = 500;

   cfg_.rc_buf_optimal_sz = 500;

   cfg_.rc_buf_sz = 1000;

@@ -1277,7 +1276,7 @@

   svc_params_.scaling_factor_den[0] = 288;

   svc_params_.scaling_factor_num[1] = 288;

   svc_params_.scaling_factor_den[1] = 288;

-  cfg_.rc_dropframe_thresh = 0;

+  cfg_.rc_dropframe_thresh = 10;

   cfg_.kf_max_dist = 9999;

   ::libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288,

                                        30, 1, 0, 200);

@@ -1289,21 +1288,17 @@

     assign_layer_bitrates(&cfg_, &svc_params_, cfg_.ss_number_layers,

                           cfg_.ts_number_layers, cfg_.temporal_layering_mode);

     ASSERT_NO_FATAL_FAILURE(RunLoop(&video));

-    ASSERT_GE(cfg_.rc_target_bitrate, file_datarate_ * 0.82)

+    ASSERT_GE(cfg_.rc_target_bitrate, file_datarate_ * 0.85)

         << " The datarate for the file exceeds the target by too much!";

     ASSERT_LE(cfg_.rc_target_bitrate, file_datarate_ * 1.15)

         << " The datarate for the file is lower than the target by too much!";

-    // Number of temporal layers > 1, so half of the frames in this SVC pattern

-    // will be non-reference frame and hence encoder will avoid loopfilter.

-    // Since frame dropper is off, we can expcet 100 (half of the sequence)

-    // mismatched frames.

-    EXPECT_EQ(static_cast<unsigned int>(100), GetMismatchFrames());

+    EXPECT_EQ(static_cast<unsigned int>(0), GetMismatchFrames());

   }

 }

 // Check basic rate targeting for 1 pass CBR SVC with denoising.

 // 2 spatial layers and 3 temporal layer. Run HD clip with 2 threads.

-TEST_P(DatarateOnePassCbrSvc, OnePassCbrSvc2SL3TLDenoiserOn) {

+TEST_P(DatarateOnePassCbrSvc, OnePassCbrSvc2SpatialLayersDenoiserOn) {

   cfg_.rc_buf_initial_sz = 500;

   cfg_.rc_buf_optimal_sz = 500;

   cfg_.rc_buf_sz = 1000;

@@ -1323,7 +1318,7 @@

   svc_params_.scaling_factor_den[0] = 288;

   svc_params_.scaling_factor_num[1] = 288;

   svc_params_.scaling_factor_den[1] = 288;

-  cfg_.rc_dropframe_thresh = 0;

+  cfg_.rc_dropframe_thresh = 10;

   cfg_.kf_max_dist = 9999;

   ::libvpx_test::Y4mVideoSource video("niklas_1280_720_30.y4m", 0, 300);

   // TODO(marpan): Check that effective_datarate for each layer hits the

@@ -1335,21 +1330,17 @@

     assign_layer_bitrates(&cfg_, &svc_params_, cfg_.ss_number_layers,

                           cfg_.ts_number_layers, cfg_.temporal_layering_mode);

     ASSERT_NO_FATAL_FAILURE(RunLoop(&video));

-    ASSERT_GE(cfg_.rc_target_bitrate, file_datarate_ * 0.82)

+    ASSERT_GE(cfg_.rc_target_bitrate, file_datarate_ * 0.85)

         << " The datarate for the file exceeds the target by too much!";

     ASSERT_LE(cfg_.rc_target_bitrate, file_datarate_ * 1.15)

         << " The datarate for the file is lower than the target by too much!";

-    // Number of temporal layers > 1, so half of the frames in this SVC pattern

-    // will be non-reference frame and hence encoder will avoid loopfilter.

-    // Since frame dropper is off, we can expcet 150 (half of the sequence)

-    // mismatched frames.

-    EXPECT_EQ(static_cast<unsigned int>(150), GetMismatchFrames());

+    EXPECT_EQ(static_cast<unsigned int>(0), GetMismatchFrames());

   }

 }

 // Check basic rate targeting for 1 pass CBR SVC: 2 spatial layers and 3

 // temporal layers. Run CIF clip with 1 thread, and few short key frame periods.

-TEST_P(DatarateOnePassCbrSvc, OnePassCbrSvc2SL3TLSmallKf) {

+TEST_P(DatarateOnePassCbrSvc, OnePassCbrSvc2SpatialLayersSmallKf) {

   cfg_.rc_buf_initial_sz = 500;

   cfg_.rc_buf_optimal_sz = 500;

   cfg_.rc_buf_sz = 1000;

@@ -1385,12 +1376,13 @@

         << " The datarate for the file exceeds the target by too much!";

     ASSERT_LE(cfg_.rc_target_bitrate, file_datarate_ * 1.15)

         << " The datarate for the file is lower than the target by too much!";

+    EXPECT_EQ(static_cast<unsigned int>(0), GetMismatchFrames());

   }

 }

 // Check basic rate targeting for 1 pass CBR SVC: 2 spatial layers and

 // 3 temporal layers. Run HD clip with 4 threads.

-TEST_P(DatarateOnePassCbrSvc, OnePassCbrSvc2SL3TL4threads) {

+TEST_P(DatarateOnePassCbrSvc, OnePassCbrSvc2SpatialLayers4threads) {

   cfg_.rc_buf_initial_sz = 500;

   cfg_.rc_buf_optimal_sz = 500;

   cfg_.rc_buf_sz = 1000;

@@ -1410,7 +1402,7 @@

   svc_params_.scaling_factor_den[0] = 288;

   svc_params_.scaling_factor_num[1] = 288;

   svc_params_.scaling_factor_den[1] = 288;

-  cfg_.rc_dropframe_thresh = 0;

+  cfg_.rc_dropframe_thresh = 10;

   cfg_.kf_max_dist = 9999;

   ::libvpx_test::Y4mVideoSource video("niklas_1280_720_30.y4m", 0, 300);

   cfg_.rc_target_bitrate = 800;

@@ -1418,20 +1410,16 @@

   assign_layer_bitrates(&cfg_, &svc_params_, cfg_.ss_number_layers,

                         cfg_.ts_number_layers, cfg_.temporal_layering_mode);

   ASSERT_NO_FATAL_FAILURE(RunLoop(&video));

-  ASSERT_GE(cfg_.rc_target_bitrate, file_datarate_ * 0.82)

+  ASSERT_GE(cfg_.rc_target_bitrate, file_datarate_ * 0.85)

       << " The datarate for the file exceeds the target by too much!";

   ASSERT_LE(cfg_.rc_target_bitrate, file_datarate_ * 1.15)

       << " The datarate for the file is lower than the target by too much!";

-  // Number of temporal layers > 1, so half of the frames in this SVC pattern

-  // will be non-reference frame and hence encoder will avoid loopfilter.

-  // Since frame dropper is off, we can expcet 150 (half of the sequence)

-  // mismatched frames.

-  EXPECT_EQ(static_cast<unsigned int>(150), GetMismatchFrames());

+  EXPECT_EQ(static_cast<unsigned int>(0), GetMismatchFrames());

 }

 // Check basic rate targeting for 1 pass CBR SVC: 3 spatial layers and

 // 3 temporal layers. Run CIF clip with 1 thread.

-TEST_P(DatarateOnePassCbrSvc, OnePassCbrSvc3SL3TL) {

+TEST_P(DatarateOnePassCbrSvc, OnePassCbrSvc3SpatialLayers) {

   cfg_.rc_buf_initial_sz = 500;

   cfg_.rc_buf_optimal_sz = 500;

   cfg_.rc_buf_sz = 1000;

@@ -1453,7 +1441,7 @@

   svc_params_.scaling_factor_den[1] = 288;

   svc_params_.scaling_factor_num[2] = 288;

   svc_params_.scaling_factor_den[2] = 288;

-  cfg_.rc_dropframe_thresh = 0;

+  cfg_.rc_dropframe_thresh = 10;

   cfg_.kf_max_dist = 9999;

   ::libvpx_test::Y4mVideoSource video("niklas_1280_720_30.y4m", 0, 300);

   cfg_.rc_target_bitrate = 800;

@@ -1461,20 +1449,16 @@

   assign_layer_bitrates(&cfg_, &svc_params_, cfg_.ss_number_layers,

                         cfg_.ts_number_layers, cfg_.temporal_layering_mode);

   ASSERT_NO_FATAL_FAILURE(RunLoop(&video));

-  ASSERT_GE(cfg_.rc_target_bitrate, file_datarate_ * 0.82)

+  ASSERT_GE(cfg_.rc_target_bitrate, file_datarate_ * 0.85)

       << " The datarate for the file exceeds the target by too much!";

   ASSERT_LE(cfg_.rc_target_bitrate, file_datarate_ * 1.22)

       << " The datarate for the file is lower than the target by too much!";

-  // Number of temporal layers > 1, so half of the frames in this SVC pattern

-  // will be non-reference frame and hence encoder will avoid loopfilter.

-  // Since frame dropper is off, we can expcet 150 (half of the sequence)

-  // mismatched frames.

-  EXPECT_EQ(static_cast<unsigned int>(150), GetMismatchFrames());

+  EXPECT_EQ(static_cast<unsigned int>(0), GetMismatchFrames());

 }

 // Check basic rate targeting for 1 pass CBR SVC: 3 spatial layers and 3

 // temporal layers. Run CIF clip with 1 thread, and few short key frame periods.

-TEST_P(DatarateOnePassCbrSvc, OnePassCbrSvc3SL3TLSmallKf) {

+TEST_P(DatarateOnePassCbrSvc, OnePassCbrSvc3SpatialLayersSmallKf) {

   cfg_.rc_buf_initial_sz = 500;

   cfg_.rc_buf_optimal_sz = 500;

   cfg_.rc_buf_sz = 1000;

@@ -1511,12 +1495,13 @@

         << " The datarate for the file exceeds the target by too much!";

     ASSERT_LE(cfg_.rc_target_bitrate, file_datarate_ * 1.30)

         << " The datarate for the file is lower than the target by too much!";

+    EXPECT_EQ(static_cast<unsigned int>(0), GetMismatchFrames());

   }

 }

 // Check basic rate targeting for 1 pass CBR SVC: 3 spatial layers and

 // 3 temporal layers. Run HD clip with 4 threads.

-TEST_P(DatarateOnePassCbrSvc, OnePassCbrSvc3SL3TL4threads) {

+TEST_P(DatarateOnePassCbrSvc, OnePassCbrSvc3SpatialLayers4threads) {

   cfg_.rc_buf_initial_sz = 500;

   cfg_.rc_buf_optimal_sz = 500;

   cfg_.rc_buf_sz = 1000;

@@ -1538,7 +1523,7 @@

   svc_params_.scaling_factor_den[1] = 288;

   svc_params_.scaling_factor_num[2] = 288;

   svc_params_.scaling_factor_den[2] = 288;

-  cfg_.rc_dropframe_thresh = 0;

+  cfg_.rc_dropframe_thresh = 10;

   cfg_.kf_max_dist = 9999;

   ::libvpx_test::Y4mVideoSource video("niklas_1280_720_30.y4m", 0, 300);

   cfg_.rc_target_bitrate = 800;

@@ -1546,20 +1531,16 @@

   assign_layer_bitrates(&cfg_, &svc_params_, cfg_.ss_number_layers,

                         cfg_.ts_number_layers, cfg_.temporal_layering_mode);

   ASSERT_NO_FATAL_FAILURE(RunLoop(&video));

-  ASSERT_GE(cfg_.rc_target_bitrate, file_datarate_ * 0.82)

+  ASSERT_GE(cfg_.rc_target_bitrate, file_datarate_ * 0.85)

       << " The datarate for the file exceeds the target by too much!";

   ASSERT_LE(cfg_.rc_target_bitrate, file_datarate_ * 1.22)

       << " The datarate for the file is lower than the target by too much!";

-  // Number of temporal layers > 1, so half of the frames in this SVC pattern

-  // will be non-reference frame and hence encoder will avoid loopfilter.

-  // Since frame dropper is off, we can expcet 150 (half of the sequence)

-  // mismatched frames.

-  EXPECT_EQ(static_cast<unsigned int>(150), GetMismatchFrames());

+  EXPECT_EQ(static_cast<unsigned int>(0), GetMismatchFrames());

 }

 // Run SVC encoder for 1 temporal layer, 2 spatial layers, with spatial

 // downscale 5x5.

-TEST_P(DatarateOnePassCbrSvc, OnePassCbrSvc2SL1TL5x5MultipleRuns) {

+TEST_P(DatarateOnePassCbrSvc, OnePassCbrSvc2SpatialLayers5x5MultipleRuns) {

   cfg_.rc_buf_initial_sz = 500;

   cfg_.rc_buf_optimal_sz = 500;

   cfg_.rc_buf_sz = 1000;

@@ -1577,7 +1558,7 @@

   svc_params_.scaling_factor_den[0] = 1280;

   svc_params_.scaling_factor_num[1] = 1280;

   svc_params_.scaling_factor_den[1] = 1280;

-  cfg_.rc_dropframe_thresh = 10;

+  cfg_.rc_dropframe_thresh = 0;

   cfg_.kf_max_dist = 999999;

   cfg_.kf_min_dist = 0;

   cfg_.ss_target_bitrate[0] = 300;

--- a/vp9/encoder/vp9_encoder.c

+++ b/vp9/encoder/vp9_encoder.c

@@ -2618,10 +2618,6 @@

   MACROBLOCKD *xd = &cpi->td.mb.e_mbd;

   struct loopfilter *lf = &cm->lf;

-  const int is_reference_frame =

-      (cpi->refresh_last_frame || cpi->refresh_golden_frame ||

-       cpi->refresh_alt_ref_frame);

-

   if (xd->lossless) {

     lf->filter_level = 0;

     lf->last_filt_level = 0;

@@ -2647,7 +2643,7 @@

     cpi->time_pick_lpf += vpx_usec_timer_elapsed(&timer);

   }

-  if (lf->filter_level > 0 && is_reference_frame) {

+  if (lf->filter_level > 0) {

     vp9_build_mask_frame(cm, lf->filter_level, 0);

     if (cpi->num_workers > 1)