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audio_device.cc
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audio_device.cc
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// Copyright (c) 2013 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.
#include "chromeos/audio/audio_device.h"
#include <stdint.h>
#include "base/format_macros.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/stringprintf.h"
#include "base/strings/utf_string_conversions.h"
namespace chromeos {
namespace {
// Get the priority for a particular device type. The priority returned
// will be between 0 to 3, the higher number meaning a higher priority.
uint8_t GetDevicePriority(AudioDeviceType type, bool is_input) {
switch (type) {
case AUDIO_TYPE_HEADPHONE:
case AUDIO_TYPE_LINEOUT:
case AUDIO_TYPE_MIC:
case AUDIO_TYPE_USB:
case AUDIO_TYPE_BLUETOOTH:
return 3;
case AUDIO_TYPE_HDMI:
return 2;
case AUDIO_TYPE_INTERNAL_SPEAKER:
case AUDIO_TYPE_INTERNAL_MIC:
case AUDIO_TYPE_FRONT_MIC:
return 1;
// Lower the priority of bluetooth mic to prevent unexpected bad eperience
// to user because of bluetooth audio profile switching. Make priority to
// zero so this mic will never be automatically chosen.
case AUDIO_TYPE_BLUETOOTH_NB_MIC:
// Rear mic should have priority lower than front mic to prevent poor
// quality input caused by accidental selecting to rear side mic.
case AUDIO_TYPE_REAR_MIC:
case AUDIO_TYPE_KEYBOARD_MIC:
case AUDIO_TYPE_HOTWORD:
case AUDIO_TYPE_POST_MIX_LOOPBACK:
case AUDIO_TYPE_POST_DSP_LOOPBACK:
case AUDIO_TYPE_OTHER:
default:
return 0;
}
}
} // namespace
// static
std::string AudioDevice::GetTypeString(AudioDeviceType type) {
switch (type) {
case AUDIO_TYPE_HEADPHONE:
return "HEADPHONE";
case AUDIO_TYPE_MIC:
return "MIC";
case AUDIO_TYPE_USB:
return "USB";
case AUDIO_TYPE_BLUETOOTH:
return "BLUETOOTH";
case AUDIO_TYPE_BLUETOOTH_NB_MIC:
return "BLUETOOTH_NB_MIC";
case AUDIO_TYPE_HDMI:
return "HDMI";
case AUDIO_TYPE_INTERNAL_SPEAKER:
return "INTERNAL_SPEAKER";
case AUDIO_TYPE_INTERNAL_MIC:
return "INTERNAL_MIC";
case AUDIO_TYPE_FRONT_MIC:
return "FRONT_MIC";
case AUDIO_TYPE_REAR_MIC:
return "REAR_MIC";
case AUDIO_TYPE_KEYBOARD_MIC:
return "KEYBOARD_MIC";
case AUDIO_TYPE_HOTWORD:
return "HOTWORD";
case AUDIO_TYPE_LINEOUT:
return "LINEOUT";
case AUDIO_TYPE_POST_MIX_LOOPBACK:
return "POST_MIX_LOOPBACK";
case AUDIO_TYPE_POST_DSP_LOOPBACK:
return "POST_DSP_LOOPBACK";
case AUDIO_TYPE_OTHER:
default:
return "OTHER";
}
}
// static
AudioDeviceType AudioDevice::GetAudioType(
const std::string& node_type) {
if (node_type.find("HEADPHONE") != std::string::npos)
return AUDIO_TYPE_HEADPHONE;
else if (node_type.find("INTERNAL_MIC") != std::string::npos)
return AUDIO_TYPE_INTERNAL_MIC;
else if (node_type.find("FRONT_MIC") != std::string::npos)
return AUDIO_TYPE_FRONT_MIC;
else if (node_type.find("REAR_MIC") != std::string::npos)
return AUDIO_TYPE_REAR_MIC;
else if (node_type.find("KEYBOARD_MIC") != std::string::npos)
return AUDIO_TYPE_KEYBOARD_MIC;
else if (node_type.find("BLUETOOTH_NB_MIC") != std::string::npos)
return AUDIO_TYPE_BLUETOOTH_NB_MIC;
else if (node_type.find("MIC") != std::string::npos)
return AUDIO_TYPE_MIC;
else if (node_type.find("USB") != std::string::npos)
return AUDIO_TYPE_USB;
else if (node_type.find("BLUETOOTH") != std::string::npos)
return AUDIO_TYPE_BLUETOOTH;
else if (node_type.find("HDMI") != std::string::npos)
return AUDIO_TYPE_HDMI;
else if (node_type.find("INTERNAL_SPEAKER") != std::string::npos)
return AUDIO_TYPE_INTERNAL_SPEAKER;
// TODO(hychao): Remove the 'AOKR' matching line after CRAS switches
// node type naming to 'HOTWORD'.
else if (node_type.find("AOKR") != std::string::npos)
return AUDIO_TYPE_HOTWORD;
else if (node_type.find("HOTWORD") != std::string::npos)
return AUDIO_TYPE_HOTWORD;
else if (node_type.find("LINEOUT") != std::string::npos)
return AUDIO_TYPE_LINEOUT;
else if (node_type.find("POST_MIX_LOOPBACK") != std::string::npos)
return AUDIO_TYPE_POST_MIX_LOOPBACK;
else if (node_type.find("POST_DSP_LOOPBACK") != std::string::npos)
return AUDIO_TYPE_POST_DSP_LOOPBACK;
else
return AUDIO_TYPE_OTHER;
}
AudioDevice::AudioDevice() = default;
AudioDevice::AudioDevice(const AudioNode& node) {
is_input = node.is_input;
id = node.id;
stable_device_id_version = node.StableDeviceIdVersion();
stable_device_id = node.StableDeviceId();
if (stable_device_id_version == 2)
deprecated_stable_device_id = node.stable_device_id_v1;
type = GetAudioType(node.type);
if (!node.name.empty() && node.name != "(default)")
display_name = node.name;
else
display_name = node.device_name;
device_name = node.device_name;
mic_positions = node.mic_positions;
priority = GetDevicePriority(type, node.is_input);
active = node.active;
plugged_time = node.plugged_time;
}
AudioDevice::AudioDevice(const AudioDevice& other) = default;
std::string AudioDevice::ToString() const {
if (stable_device_id_version == 0) {
return "Null device";
}
std::string result;
base::StringAppendF(&result,
"is_input = %s ",
is_input ? "true" : "false");
base::StringAppendF(&result,
"id = 0x%" PRIx64 " ",
id);
base::StringAppendF(&result, "stable_device_id_version = %d",
stable_device_id_version);
base::StringAppendF(&result, "stable_device_id = 0x%" PRIx64 " ",
stable_device_id);
base::StringAppendF(&result, "deprecated_stable_device_id = 0x%" PRIx64 " ",
deprecated_stable_device_id);
base::StringAppendF(&result, "display_name = %s ", display_name.c_str());
base::StringAppendF(&result,
"device_name = %s ",
device_name.c_str());
base::StringAppendF(&result,
"type = %s ",
GetTypeString(type).c_str());
base::StringAppendF(&result,
"active = %s ",
active ? "true" : "false");
base::StringAppendF(&result, "plugged_time= %s ",
base::NumberToString(plugged_time).c_str());
base::StringAppendF(&result, "mic_positions = %s ", mic_positions.c_str());
return result;
}
bool AudioDevice::IsExternalDevice() const {
if (!is_for_simple_usage())
return false;
if (is_input) {
return !IsInternalMic();
} else {
return (type != AUDIO_TYPE_INTERNAL_SPEAKER);
}
}
bool AudioDevice::IsInternalMic() const {
switch (type) {
case AUDIO_TYPE_INTERNAL_MIC:
case AUDIO_TYPE_FRONT_MIC:
case AUDIO_TYPE_REAR_MIC:
return true;
default:
return false;
}
}
} // namespace chromeos