| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef COMPONENTS_COPRESENCE_PUBLIC_COPRESENCE_CONSTANTS_ |
| #define COMPONENTS_COPRESENCE_PUBLIC_COPRESENCE_CONSTANTS_ |
| |
| #include "media/base/channel_layout.h" |
| |
| namespace copresence { |
| |
| // Audio constants. Currently used from the AudioPlayer/AudioRecorder. |
| // TODO(rkc): Make these values configurable then remove them from here. |
| // Number of repetitions of the audio token in one sequence of samples. |
| extern const int kDefaultRepetitions; |
| |
| // The default sample rate. We need to ensure that both the recorder and the |
| // player on _all platforms use the same rate. |
| extern const float kDefaultSampleRate; |
| extern const int kDefaultBitsPerSample; |
| |
| // 18500 for ultrasound, needs to be consistent between platforms. |
| extern const float kDefaultCarrierFrequency; |
| |
| // The next two really need to be configurable since they don't need to be |
| // consistent across platforms, or even playing/recording. |
| extern const int kDefaultChannels; |
| extern const media::ChannelLayout kDefaultChannelLayout; |
| |
| } // namespace copresence |
| |
| #endif // COMPONENTS_COPRESENCE_PUBLIC_COPRESENCE_CONSTANTS_ |
