AudioDeviceBuffer now uses 16-bit buffers

webrtc/modules/audio_device/audio_device_buffer.h

 /*
  *  Copyright (c) 2012 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 136 matching lines @@
   size_t rec_channels_;
   size_t play_channels_;
 
   // Keeps track of if playout/recording are active or not. A combination
   // of these states are used to determine when to start and stop the timer.
   // Only used on the creating thread and not used to control any media flow.
   bool playing_ ACCESS_ON(main_thread_checker_);
   bool recording_ ACCESS_ON(main_thread_checker_);
 
   // Buffer used for audio samples to be played out. Size can be changed
-  // dynamically.
-  rtc::Buffer play_buffer_ ACCESS_ON(playout_thread_checker_);
+  // dynamically. Each sample (or audio sample frame) has a size given by
+  // #channels * sizeof(uint16_t) bytes since WebRTC uses 16-bit PCM audio.
+  rtc::BufferT<uint16_t> play_buffer_ ACCESS_ON(playout_thread_checker_);
 
   // Byte buffer used for recorded audio samples. Size can be changed
   // dynamically.
-  rtc::Buffer rec_buffer_ ACCESS_ON(recording_thread_checker_);
+  rtc::BufferT<uint16_t> rec_buffer_ ACCESS_ON(recording_thread_checker_);
 
   // AGC parameters.
 #if !defined(WEBRTC_WIN)
   uint32_t current_mic_level_ ACCESS_ON(recording_thread_checker_);
 #else
   // Windows uses a dedicated thread for volume APIs.
   uint32_t current_mic_level_;
 #endif
   uint32_t new_mic_level_ ACCESS_ON(recording_thread_checker_);
 
@@ skipping 58 matching lines @@
   uint64_t rec_start_time_ ACCESS_ON(main_thread_checker_);
 
   // Set to true at construction and modified to false as soon as one audio-
   // level estimate larger than zero is detected.
   bool only_silence_recorded_;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_AUDIO_DEVICE_AUDIO_DEVICE_BUFFER_H_