AppRTCMobile support to turn off the WebRTC AGC and HPF

webrtc/examples/androidapp/src/org/appspot/apprtc/PeerConnectionClient.java

 /*
  *  Copyright 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.
  */
 
@@ skipping 69 matching lines @@
   private static final String VIDEO_CODEC_H264_BASELINE = "H264 Baseline";
   private static final String VIDEO_CODEC_H264_HIGH = "H264 High";
   private static final String AUDIO_CODEC_OPUS = "opus";
   private static final String AUDIO_CODEC_ISAC = "ISAC";
   private static final String VIDEO_CODEC_PARAM_START_BITRATE = "x-google-start-bitrate";
   private static final String VIDEO_FLEXFEC_FIELDTRIAL =
       "WebRTC-FlexFEC-03-Advertised/Enabled/WebRTC-FlexFEC-03/Enabled/";
   private static final String VIDEO_VP8_INTEL_HW_ENCODER_FIELDTRIAL = "WebRTC-IntelVP8/Enabled/";
   private static final String VIDEO_H264_HIGH_PROFILE_FIELDTRIAL =
       "WebRTC-H264HighProfile/Enabled/";
+  private static final String DISABLE_WEBRTC_AGC_FIELDTRIAL =
+      "WebRTC-Audio-MinimizeResamplingOnMobile/Enabled/";
   private static final String AUDIO_CODEC_PARAM_BITRATE = "maxaveragebitrate";
   private static final String AUDIO_ECHO_CANCELLATION_CONSTRAINT = "googEchoCancellation";
   private static final String AUDIO_AUTO_GAIN_CONTROL_CONSTRAINT = "googAutoGainControl";
   private static final String AUDIO_HIGH_PASS_FILTER_CONSTRAINT = "googHighpassFilter";
   private static final String AUDIO_NOISE_SUPPRESSION_CONSTRAINT = "googNoiseSuppression";
   private static final String AUDIO_LEVEL_CONTROL_CONSTRAINT = "levelControl";
   private static final String DTLS_SRTP_KEY_AGREEMENT_CONSTRAINT = "DtlsSrtpKeyAgreement";
   private static final int HD_VIDEO_WIDTH = 1280;
   private static final int HD_VIDEO_HEIGHT = 720;
   private static final int BPS_IN_KBPS = 1000;
@@ skipping 83 matching lines @@
     public final boolean videoFlexfecEnabled;
     public final int audioStartBitrate;
     public final String audioCodec;
     public final boolean noAudioProcessing;
     public final boolean aecDump;
     public final boolean useOpenSLES;
     public final boolean disableBuiltInAEC;
     public final boolean disableBuiltInAGC;
     public final boolean disableBuiltInNS;
     public final boolean enableLevelControl;
+    public final boolean disableWebRtcAGCAndHPF;
     private final DataChannelParameters dataChannelParameters;
 
     public PeerConnectionParameters(boolean videoCallEnabled, boolean loopback, boolean tracing,
         int videoWidth, int videoHeight, int videoFps, int videoMaxBitrate, String videoCodec,
         boolean videoCodecHwAcceleration, boolean videoFlexfecEnabled, int audioStartBitrate,
         String audioCodec, boolean noAudioProcessing, boolean aecDump, boolean useOpenSLES,
         boolean disableBuiltInAEC, boolean disableBuiltInAGC, boolean disableBuiltInNS,
-        boolean enableLevelControl) {
+        boolean enableLevelControl, boolean disableWebRtcAGCAndHPF) {
       this(videoCallEnabled, loopback, tracing, videoWidth, videoHeight, videoFps, videoMaxBitrate,
           videoCodec, videoCodecHwAcceleration, videoFlexfecEnabled, audioStartBitrate, audioCodec,
           noAudioProcessing, aecDump, useOpenSLES, disableBuiltInAEC, disableBuiltInAGC,
-          disableBuiltInNS, enableLevelControl, null);
+          disableBuiltInNS, enableLevelControl, disableWebRtcAGCAndHPF, null);
     }
 
     public PeerConnectionParameters(boolean videoCallEnabled, boolean loopback, boolean tracing,
         int videoWidth, int videoHeight, int videoFps, int videoMaxBitrate, String videoCodec,
         boolean videoCodecHwAcceleration, boolean videoFlexfecEnabled, int audioStartBitrate,
         String audioCodec, boolean noAudioProcessing, boolean aecDump, boolean useOpenSLES,
         boolean disableBuiltInAEC, boolean disableBuiltInAGC, boolean disableBuiltInNS,
-        boolean enableLevelControl, DataChannelParameters dataChannelParameters) {
+        boolean enableLevelControl, boolean disableWebRtcAGCAndHPF,
+        DataChannelParameters dataChannelParameters) {
       this.videoCallEnabled = videoCallEnabled;
       this.loopback = loopback;
       this.tracing = tracing;
       this.videoWidth = videoWidth;
       this.videoHeight = videoHeight;
       this.videoFps = videoFps;
       this.videoMaxBitrate = videoMaxBitrate;
       this.videoCodec = videoCodec;
       this.videoFlexfecEnabled = videoFlexfecEnabled;
       this.videoCodecHwAcceleration = videoCodecHwAcceleration;
       this.audioStartBitrate = audioStartBitrate;
       this.audioCodec = audioCodec;
       this.noAudioProcessing = noAudioProcessing;
       this.aecDump = aecDump;
       this.useOpenSLES = useOpenSLES;
       this.disableBuiltInAEC = disableBuiltInAEC;
       this.disableBuiltInAGC = disableBuiltInAGC;
       this.disableBuiltInNS = disableBuiltInNS;
       this.enableLevelControl = enableLevelControl;
+      this.disableWebRtcAGCAndHPF = disableWebRtcAGCAndHPF;
       this.dataChannelParameters = dataChannelParameters;
     }
   }
 
   /**
    * Peer connection events.
    */
   public interface PeerConnectionEvents {
     /**
      * Callback fired once local SDP is created and set.
@@ skipping 140 matching lines @@
         "Create peer connection factory. Use video: " + peerConnectionParameters.videoCallEnabled);
     isError = false;
 
     // Initialize field trials.
     String fieldTrials = "";
     if (peerConnectionParameters.videoFlexfecEnabled) {
       fieldTrials += VIDEO_FLEXFEC_FIELDTRIAL;
       Log.d(TAG, "Enable FlexFEC field trial.");
     }
     fieldTrials += VIDEO_VP8_INTEL_HW_ENCODER_FIELDTRIAL;
+    if (peerConnectionParameters.disableWebRtcAGCAndHPF) {
+      fieldTrials += DISABLE_WEBRTC_AGC_FIELDTRIAL;
+      Log.d(TAG, "Disable WebRTC AGC field trial.");
+    }
 
     // Check preferred video codec.
     preferredVideoCodec = VIDEO_CODEC_VP8;
     if (videoCallEnabled && peerConnectionParameters.videoCodec != null) {
       switch (peerConnectionParameters.videoCodec) {
         case VIDEO_CODEC_VP8:
           preferredVideoCodec = VIDEO_CODEC_VP8;
           break;
         case VIDEO_CODEC_VP9:
           preferredVideoCodec = VIDEO_CODEC_VP9;
@@ skipping 941 matching lines @@
     public void onCreateFailure(final String error) {
       reportError("createSDP error: " + error);
     }
 
     @Override
     public void onSetFailure(final String error) {
       reportError("setSDP error: " + error);
     }
   }
 }