Creating the audio_modem component

chrome/browser/copresence/chrome_whispernet_config.h

+// Copyright 2015 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 CHROME_BROWSER_COPRESENCE_CHROME_WHISPERNET_CONFIG_H_
+#define CHROME_BROWSER_COPRESENCE_CHROME_WHISPERNET_CONFIG_H_
+
+// Shared structs with whispernet. TODO(rkc): These will be removed once we can
+// get protobufs working with Nacl. At that point, we'll just pass in
+// config_data.proto to the whispernet nacl wrapper directly.
+
+// We will be using fixed types in all these structures since they will be
+// stuffed into a string and then read on the other side via a completely
+// different toolchain.
+
+struct AudioDsssParams {
+  int64_t include_parity_symbol;
+  int64_t use_single_sideband;
+  double desired_carrier_frequency;
+  int64_t use_crc_16;
+  double coder_sample_rate;
+  int64_t bits_per_symbol;
+  int64_t min_cycles_per_frame;
+  int64_t baseband_decimation_factor;
+  int64_t upsampling_factor;
+  int64_t num_repetitions_to_play;
+};
+
+struct AdsrParams {
+  int64_t attack_time_millis;
+  int64_t decay_time_millis;
+  int64_t sustain_time_millis;
+  int64_t release_time_millis;
+  double sustain_amplitude;
+};
+
+struct AudioDtmfParams {
+  int64_t include_parity_symbol;
+  int64_t use_crc_16;
+  double coder_sample_rate;
+  int64_t baseband_decimation_factor;
+  int64_t frequencies_per_symbol;
+  int64_t window_duration_millis;
+  AdsrParams adsr_params;
+  int64_t num_repetitions_to_play;
+};
+
+struct LoggerParam {
+  int64_t clear_cached_request_duration_millis;
+  int64_t request_buffer_limit;
+};
+
+struct AudioParamData {
+  LoggerParam logger;
+  AudioDsssParams audio_dsss;
+  AudioDtmfParams audio_dtmf;
+  int64_t recording_channels;
+};
+
+#endif  // CHROME_BROWSER_COPRESENCE_CHROME_WHISPERNET_CONFIG_H_