Convert channel counts to size_t.

webrtc/modules/audio_coding/acm2/rent_a_codec.h

 /*
  *  Copyright (c) 2015 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 144 matching lines @@
 
   static inline rtc::Optional<CodecId> CodecIdFromIndex(int codec_index) {
     return static_cast<size_t>(codec_index) < NumberOfCodecs()
                ? rtc::Optional<RentACodec::CodecId>(
                      static_cast<RentACodec::CodecId>(codec_index))
                : rtc::Optional<RentACodec::CodecId>();
   }
 
   static rtc::Optional<CodecId> CodecIdByParams(const char* payload_name,
                                                 int sampling_freq_hz,
-                                                int channels);
+                                                size_t channels);
   static rtc::Optional<CodecInst> CodecInstById(CodecId codec_id);
   static rtc::Optional<CodecId> CodecIdByInst(const CodecInst& codec_inst);
   static rtc::Optional<CodecInst> CodecInstByParams(const char* payload_name,
                                                     int sampling_freq_hz,
-                                                    int channels);
+                                                    size_t channels);
   static bool IsCodecValid(const CodecInst& codec_inst);
 
   static inline bool IsPayloadTypeValid(int payload_type) {
     return payload_type >= 0 && payload_type <= 127;
   }
 
   static rtc::ArrayView<const CodecInst> Database();
 
   static rtc::Optional<bool> IsSupportedNumChannels(CodecId codec_id,
-                                                    int num_channels);
+                                                    size_t num_channels);
 
-  static rtc::Optional<NetEqDecoder> NetEqDecoderFromCodecId(CodecId codec_id,
-                                                             int num_channels);
+  static rtc::Optional<NetEqDecoder> NetEqDecoderFromCodecId(
+      CodecId codec_id,
+      size_t num_channels);
 
   // Parse codec_inst and extract payload types. If the given CodecInst was for
   // the wrong sort of codec, return kSkip; otherwise, if the rate was illegal,
   // return kBadFreq; otherwise, update the given RTP timestamp rate (Hz) ->
   // payload type map and return kOk.
   enum class RegistrationResult { kOk, kSkip, kBadFreq };
   static RegistrationResult RegisterCngPayloadType(std::map<int, int>* pt_map,
                                                    const CodecInst& codec_inst);
   static RegistrationResult RegisterRedPayloadType(std::map<int, int>* pt_map,
                                                    const CodecInst& codec_inst);
@@ skipping 45 matching lines @@
   AudioEncoder* encoder_stack_ = nullptr;
   LockedIsacBandwidthInfo isac_bandwidth_info_;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(RentACodec);
 };
 
 }  // namespace acm2
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_AUDIO_CODING_ACM2_RENT_A_CODEC_H_