Compensate for the IntelligibilityEnhancer processing delay in high bands

webrtc/common_audio/blocker.h

 /*
  *  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.
  */
 
@@ skipping 61 matching lines @@
           size_t shift_amount,
           BlockerCallback* callback);
   ~Blocker();
 
   void ProcessChunk(const float* const* input,
                     size_t chunk_size,
                     size_t num_input_channels,
                     size_t num_output_channels,
                     float* const* output);
 
+  size_t initial_delay() const { return initial_delay_; }
+
  private:
   const size_t chunk_size_;
   const size_t block_size_;
   const size_t num_input_channels_;
   const size_t num_output_channels_;
 
   // The number of frames of delay to add at the beginning of the first chunk.
   const size_t initial_delay_;
 
   // The frame index into the input buffer where the first block should be read
@@ skipping 24 matching lines @@
   // The amount of frames between the start of contiguous blocks. For example,
   // |shift_amount_| = |block_size_| / 2 for a Hann window.
   size_t shift_amount_;
 
   BlockerCallback* callback_;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_INTERNAL_BEAMFORMER_BLOCKER_H_