Deactivated the intelligibility enhancement functionality by default

webrtc/modules/audio_processing/BUILD.gn

 # Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 import("//build/config/arm.gni")
 import("//third_party/protobuf/proto_library.gni")
@@ skipping 56 matching lines @@
     "echo_cancellation_impl.h",
     "echo_control_mobile_impl.cc",
     "echo_control_mobile_impl.h",
     "gain_control_for_experimental_agc.cc",
     "gain_control_for_experimental_agc.h",
     "gain_control_impl.cc",
     "gain_control_impl.h",
     "high_pass_filter_impl.cc",
     "high_pass_filter_impl.h",
     "include/audio_processing.h",
-    "intelligibility/intelligibility_enhancer.cc",
-    "intelligibility/intelligibility_enhancer.h",
-    "intelligibility/intelligibility_utils.cc",
-    "intelligibility/intelligibility_utils.h",
     "level_controller/biquad_filter.cc",
     "level_controller/biquad_filter.h",
     "level_controller/down_sampler.cc",
     "level_controller/down_sampler.h",
     "level_controller/gain_applier.cc",
     "level_controller/gain_applier.h",
     "level_controller/gain_selector.cc",
     "level_controller/gain_selector.h",
     "level_controller/lc_constants.h",
     "level_controller/level_controller.cc",
@@ skipping 84 matching lines @@
 
   if (aec_untrusted_delay_for_testing) {
     defines += [ "WEBRTC_UNTRUSTED_DELAY" ]
   }
 
   if (rtc_enable_protobuf) {
     defines += [ "WEBRTC_AUDIOPROC_DEBUG_DUMP" ]
     deps += [ ":audioproc_debug_proto" ]
   }
 
+  if (rtc_enable_intelligibility_enhancer) {
+    defines += [ "WEBRTC_INTELLIGIBILITY_ENHANCER=1" ]
+    sources += [
+      "intelligibility/intelligibility_enhancer.cc",
+      "intelligibility/intelligibility_enhancer.h",
+      "intelligibility/intelligibility_utils.cc",
+      "intelligibility/intelligibility_utils.h",
+    ]
+  } else {
+    defines += [ "WEBRTC_INTELLIGIBILITY_ENHANCER=0" ]
+  }
+
   if (rtc_prefer_fixed_point) {
     defines += [ "WEBRTC_NS_FIXED" ]
     sources += [
       "ns/noise_suppression_x.c",
       "ns/noise_suppression_x.h",
       "ns/nsx_core.c",
       "ns/nsx_core.h",
       "ns/nsx_defines.h",
     ]
     if (current_cpu == "mipsel") {
@@ skipping 279 matching lines @@
       ":audioproc_test_utils",
       "../../system_wrappers:metrics_default",
       "//third_party/gflags",
     ]
     if (is_clang) {
       # Suppress warnings from the Chromium Clang plugins (bugs.webrtc.org/163).
       configs -= [ "//build/config/clang:find_bad_constructs" ]
     }
   }
 
-  executable("intelligibility_proc") {
-    testonly = true
-    sources = [
-      "intelligibility/test/intelligibility_proc.cc",
-    ]
-    deps = [
-      ":audio_processing",
-      ":audioproc_test_utils",
-      "../../system_wrappers:metrics_default",
-      "../../test:test_support",
-      "//testing/gtest",
-      "//third_party/gflags",
-    ]
-    if (is_clang) {
-      # Suppress warnings from the Chromium Clang plugins (bugs.webrtc.org/163).
-      configs -= [ "//build/config/clang:find_bad_constructs" ]
+  if (rtc_enable_intelligibility_enhancer) {
+    executable("intelligibility_proc") {
+      testonly = true
+      sources = [
+        "intelligibility/test/intelligibility_proc.cc",
+      ]
+      deps = [
+        ":audio_processing",
+        ":audioproc_test_utils",
+        "../../system_wrappers:metrics_default",
+        "../../test:test_support",
+        "//testing/gtest",
+        "//third_party/gflags",
+      ]
+      if (is_clang) {
+        # Suppress warnings from the Chromium Clang plugins (bugs.webrtc.org/163).
+        configs -= [ "//build/config/clang:find_bad_constructs" ]
+      }
     }
   }
 
   if (rtc_enable_protobuf) {
     proto_library("audioproc_unittest_proto") {
       sources = [
         "test/unittest.proto",
       ]
       proto_out_dir = "webrtc/modules/audio_processing"
     }
 
     source_set("audioproc_protobuf_utils") {
       sources = [
         "test/protobuf_utils.cc",
         "test/protobuf_utils.h",
       ]
 
       deps = [
         ":audioproc_debug_proto",
       ]
     }
   }
 }