Convert channel counts to size_t.

webrtc/modules/audio_processing/splitting_filter.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/modules/audio_processing/splitting_filter.h"
 
 #include "webrtc/base/checks.h"
 #include "webrtc/common_audio/signal_processing/include/signal_processing_library.h"
 #include "webrtc/common_audio/channel_buffer.h"
 
 namespace webrtc {
 
-SplittingFilter::SplittingFilter(int num_channels,
+SplittingFilter::SplittingFilter(size_t num_channels,
                                  size_t num_bands,
                                  size_t num_frames)
     : num_bands_(num_bands) {
   RTC_CHECK(num_bands_ == 2 || num_bands_ == 3);
   if (num_bands_ == 2) {
     two_bands_states_.resize(num_channels);
   } else if (num_bands_ == 3) {
-    for (int i = 0; i < num_channels; ++i) {
+    for (size_t i = 0; i < num_channels; ++i) {
       three_band_filter_banks_.push_back(new ThreeBandFilterBank(num_frames));
     }
   }
 }
 
 void SplittingFilter::Analysis(const IFChannelBuffer* data,
                                IFChannelBuffer* bands) {
   RTC_DCHECK_EQ(num_bands_, bands->num_bands());
   RTC_DCHECK_EQ(data->num_channels(), bands->num_channels());
   RTC_DCHECK_EQ(data->num_frames(),
@@ skipping 13 matching lines @@
                 bands->num_frames_per_band() * bands->num_bands());
   if (bands->num_bands() == 2) {
     TwoBandsSynthesis(bands, data);
   } else if (bands->num_bands() == 3) {
     ThreeBandsSynthesis(bands, data);
   }
 }
 
 void SplittingFilter::TwoBandsAnalysis(const IFChannelBuffer* data,
                                        IFChannelBuffer* bands) {
-  RTC_DCHECK_EQ(static_cast<int>(two_bands_states_.size()),
-                data->num_channels());
+  RTC_DCHECK_EQ(two_bands_states_.size(), data->num_channels());
   for (size_t i = 0; i < two_bands_states_.size(); ++i) {
     WebRtcSpl_AnalysisQMF(data->ibuf_const()->channels()[i],
                           data->num_frames(),
                           bands->ibuf()->channels(0)[i],
                           bands->ibuf()->channels(1)[i],
                           two_bands_states_[i].analysis_state1,
                           two_bands_states_[i].analysis_state2);
   }
 }
 
 void SplittingFilter::TwoBandsSynthesis(const IFChannelBuffer* bands,
                                         IFChannelBuffer* data) {
-  RTC_DCHECK_EQ(static_cast<int>(two_bands_states_.size()),
-                data->num_channels());
+  RTC_DCHECK_EQ(two_bands_states_.size(), data->num_channels());
   for (size_t i = 0; i < two_bands_states_.size(); ++i) {
     WebRtcSpl_SynthesisQMF(bands->ibuf_const()->channels(0)[i],
                            bands->ibuf_const()->channels(1)[i],
                            bands->num_frames_per_band(),
                            data->ibuf()->channels()[i],
                            two_bands_states_[i].synthesis_state1,
                            two_bands_states_[i].synthesis_state2);
   }
 }
 
 void SplittingFilter::ThreeBandsAnalysis(const IFChannelBuffer* data,
                                          IFChannelBuffer* bands) {
-  RTC_DCHECK_EQ(static_cast<int>(three_band_filter_banks_.size()),
-                data->num_channels());
+  RTC_DCHECK_EQ(three_band_filter_banks_.size(), data->num_channels());
   for (size_t i = 0; i < three_band_filter_banks_.size(); ++i) {
     three_band_filter_banks_[i]->Analysis(data->fbuf_const()->channels()[i],
                                           data->num_frames(),
                                           bands->fbuf()->bands(i));
   }
 }
 
 void SplittingFilter::ThreeBandsSynthesis(const IFChannelBuffer* bands,
                                           IFChannelBuffer* data) {
-  RTC_DCHECK_EQ(static_cast<int>(three_band_filter_banks_.size()),
-                data->num_channels());
+  RTC_DCHECK_EQ(three_band_filter_banks_.size(), data->num_channels());
   for (size_t i = 0; i < three_band_filter_banks_.size(); ++i) {
     three_band_filter_banks_[i]->Synthesis(bands->fbuf_const()->bands(i),
                                            bands->num_frames_per_band(),
                                            data->fbuf()->channels()[i]);
   }
 }
 
 }  // namespace webrtc