Added support in the AEC for refined filter adaptation.

webrtc/modules/audio_processing/aec/aec_core_mips.cc

 /*
  *  Copyright (c) 2013 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 690 matching lines @@
       "swc1      %[temp4],    -4(%[p_efw1])            \n\t"
       : [temp1] "=&f" (temp1), [temp2] "=&f" (temp2), [temp3] "=&f" (temp3),
         [temp4] "=&f" (temp4), [p_efw0] "+r" (p_efw0), [p_efw1] "+r" (p_efw1),
         [p_hNl] "+r" (p_hNl)
       :
       : "memory");
   }
 }
 
 void WebRtcAec_ScaleErrorSignal_mips(int extended_filter_enabled,
-                                     float normal_mu,
+                                     float mu,
                                      float normal_error_threshold,
                                      float x_pow[PART_LEN1],
                                      float ef[2][PART_LEN1]) {

[tlegrand-webrtc, 2016/04/14 14:32:42]

Same comments as for the main function.

[peah-webrtc, 2016/04/14 22:12:41]

Done.

-  const float mu = extended_filter_enabled ? kExtendedMu : normal_mu;
   const float error_threshold = extended_filter_enabled
                                     ? kExtendedErrorThreshold
                                     : normal_error_threshold;
   int len = (PART_LEN1);
   float* ef0 = ef[0];
   float* ef1 = ef[1];
   float fac1 = 1e-10f;
   float err_th2 = error_threshold * error_threshold;
   float f0, f1, f2;
 #if !defined(MIPS32_R2_LE)
@@ skipping 49 matching lines @@
 }
 
 void WebRtcAec_InitAec_mips(void) {
   WebRtcAec_FilterFar = WebRtcAec_FilterFar_mips;
   WebRtcAec_FilterAdaptation = WebRtcAec_FilterAdaptation_mips;
   WebRtcAec_ScaleErrorSignal = WebRtcAec_ScaleErrorSignal_mips;
   WebRtcAec_ComfortNoise = WebRtcAec_ComfortNoise_mips;
   WebRtcAec_OverdriveAndSuppress = WebRtcAec_OverdriveAndSuppress_mips;
 }
 }  // namespace webrtc