Removed the deactivation of the level controller when there is a built-in AGC available

webrtc/media/engine/webrtcvoiceengine.cc

 /*
  *  Copyright (c) 2004 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.
  */
 
@@ skipping 665 matching lines @@
 #endif
     if (ec_mode == webrtc::kEcAecm) {
       bool cn = options.aecm_generate_comfort_noise.value_or(false);
       if (voep->SetAecmMode(aecm_mode, cn) != 0) {
         LOG_RTCERR2(SetAecmMode, aecm_mode, cn);
         return false;
       }
     }
   }
 
-  // Use optional to avoid uneccessary calls to BuiltInAGCIsAvailable while
-  // complying with the unittest requirements of only 1 call per test.
-  rtc::Optional<bool> built_in_agc_avaliable;
-  if (options.level_control) {
-    if (!built_in_agc_avaliable) {
-      built_in_agc_avaliable =
-          rtc::Optional<bool>(adm()->BuiltInAGCIsAvailable());
-    }
-    RTC_DCHECK(built_in_agc_avaliable);
-    if (*built_in_agc_avaliable) {
-      // Disable internal software level control if built-in AGC is enabled,
-      // i.e., replace the software AGC with the built-in AGC.
-      options.level_control = rtc::Optional<bool>(false);
-    }
-  }
-
   if (options.auto_gain_control) {
-    if (!built_in_agc_avaliable) {
-      built_in_agc_avaliable =
-          rtc::Optional<bool>(adm()->BuiltInAGCIsAvailable());
-    }
-    RTC_DCHECK(built_in_agc_avaliable);
-    if (*built_in_agc_avaliable) {
+    bool built_in_agc_avaliable = adm()->BuiltInAGCIsAvailable();
+    if (built_in_agc_avaliable) {
       if (adm()->EnableBuiltInAGC(*options.auto_gain_control) == 0 &&
           *options.auto_gain_control) {
         // Disable internal software AGC if built-in AGC is enabled,
         // i.e., replace the software AGC with the built-in AGC.
         options.auto_gain_control = rtc::Optional<bool>(false);
         LOG(LS_INFO) << "Disabling AGC since built-in AGC will be used instead";
       }
     }
     if (voep->SetAgcStatus(*options.auto_gain_control, agc_mode) == -1) {
       LOG_RTCERR2(SetAgcStatus, *options.auto_gain_control, agc_mode);
@@ skipping 1890 matching lines @@
   RTC_DCHECK(worker_thread_checker_.CalledOnValidThread());
   const auto it = send_streams_.find(ssrc);
   if (it != send_streams_.end()) {
     return it->second->channel();
   }
   return -1;
 }
 }  // namespace cricket
 
 #endif  // HAVE_WEBRTC_VOICE