Convert channel counts to size_t.

webrtc/common_audio/lapped_transform.cc

 /*
  *  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.
  */
 
 #include "webrtc/common_audio/lapped_transform.h"
 
 #include <algorithm>
 #include <cstdlib>
 #include <cstring>
 
 #include "webrtc/base/checks.h"
 #include "webrtc/common_audio/real_fourier.h"
 
 namespace webrtc {
 
 void LappedTransform::BlockThunk::ProcessBlock(const float* const* input,
                                                size_t num_frames,
-                                               int num_input_channels,
-                                               int num_output_channels,
+                                               size_t num_input_channels,
+                                               size_t num_output_channels,
                                                float* const* output) {
   RTC_CHECK_EQ(num_input_channels, parent_->num_in_channels_);
   RTC_CHECK_EQ(num_output_channels, parent_->num_out_channels_);
   RTC_CHECK_EQ(parent_->block_length_, num_frames);
 
-  for (int i = 0; i < num_input_channels; ++i) {
+  for (size_t i = 0; i < num_input_channels; ++i) {
     memcpy(parent_->real_buf_.Row(i), input[i],
            num_frames * sizeof(*input[0]));
     parent_->fft_->Forward(parent_->real_buf_.Row(i),
                            parent_->cplx_pre_.Row(i));
   }
 
   size_t block_length = RealFourier::ComplexLength(
       RealFourier::FftOrder(num_frames));
   RTC_CHECK_EQ(parent_->cplx_length_, block_length);
   parent_->block_processor_->ProcessAudioBlock(parent_->cplx_pre_.Array(),
                                                num_input_channels,
                                                parent_->cplx_length_,
                                                num_output_channels,
                                                parent_->cplx_post_.Array());
 
-  for (int i = 0; i < num_output_channels; ++i) {
+  for (size_t i = 0; i < num_output_channels; ++i) {
     parent_->fft_->Inverse(parent_->cplx_post_.Row(i),
                            parent_->real_buf_.Row(i));
     memcpy(output[i], parent_->real_buf_.Row(i),
            num_frames * sizeof(*input[0]));
   }
 }
 
-LappedTransform::LappedTransform(int num_in_channels,
-                                 int num_out_channels,
+LappedTransform::LappedTransform(size_t num_in_channels,
+                                 size_t num_out_channels,
                                  size_t chunk_length,
                                  const float* window,
                                  size_t block_length,
                                  size_t shift_amount,
                                  Callback* callback)
     : blocker_callback_(this),
       num_in_channels_(num_in_channels),
       num_out_channels_(num_out_channels),
       block_length_(block_length),
       chunk_length_(chunk_length),
@@ skipping 25 matching lines @@
   RTC_CHECK_EQ(0u, block_length_ & (block_length_ - 1));
 }
 
 void LappedTransform::ProcessChunk(const float* const* in_chunk,
                                    float* const* out_chunk) {
   blocker_.ProcessChunk(in_chunk, chunk_length_, num_in_channels_,
                         num_out_channels_, out_chunk);
 }
 
 }  // namespace webrtc