Copy DeviceDescriptor to libaudiofoundation.
The file is copied from managerdefinition folder. Doing this to get a
better git history.
Test: make
Bug: 135621476
Change-Id: I9a6d6401e45102b5303730b4900b1899968ca267
diff --git a/media/libaudiofoundation/DeviceDescriptorBase.cpp b/media/libaudiofoundation/DeviceDescriptorBase.cpp
new file mode 100644
index 0000000..51ac5f5
--- /dev/null
+++ b/media/libaudiofoundation/DeviceDescriptorBase.cpp
@@ -0,0 +1,469 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "APM::Devices"
+//#define LOG_NDEBUG 0
+
+#include <audio_utils/string.h>
+#include <media/TypeConverter.h>
+#include <set>
+#include "DeviceDescriptor.h"
+#include "TypeConverter.h"
+#include "HwModule.h"
+
+namespace android {
+
+DeviceDescriptor::DeviceDescriptor(audio_devices_t type, const std::string &tagName) :
+ DeviceDescriptor(type, FormatVector{}, tagName)
+{
+}
+
+DeviceDescriptor::DeviceDescriptor(audio_devices_t type, const FormatVector &encodedFormats,
+ const std::string &tagName) :
+ AudioPort("", AUDIO_PORT_TYPE_DEVICE,
+ audio_is_output_device(type) ? AUDIO_PORT_ROLE_SINK :
+ AUDIO_PORT_ROLE_SOURCE),
+ mTagName(tagName), mDeviceType(type), mEncodedFormats(encodedFormats)
+{
+ mCurrentEncodedFormat = AUDIO_FORMAT_DEFAULT;
+ if (audio_is_remote_submix_device(type)) {
+ mAddress = String8("0");
+ }
+ /* If framework runs against a pre 5.0 Audio HAL, encoded formats are absent from the config.
+ * FIXME: APM should know the version of the HAL and don't add the formats for V5.0.
+ * For now, the workaround to remove AC3 and IEC61937 support on HDMI is to declare
+ * something like 'encodedFormats="AUDIO_FORMAT_PCM_16_BIT"' on the HDMI devicePort.
+ */
+ if (type == AUDIO_DEVICE_OUT_HDMI && mEncodedFormats.empty()) {
+ mEncodedFormats.push_back(AUDIO_FORMAT_AC3);
+ mEncodedFormats.push_back(AUDIO_FORMAT_IEC61937);
+ }
+}
+
+void DeviceDescriptor::attach(const sp<HwModule>& module)
+{
+ PolicyAudioPort::attach(module);
+ mId = getNextUniqueId();
+}
+
+void DeviceDescriptor::detach() {
+ mId = AUDIO_PORT_HANDLE_NONE;
+ PolicyAudioPort::detach();
+}
+
+template<typename T>
+bool checkEqual(const T& f1, const T& f2)
+{
+ std::set<typename T::value_type> s1(f1.begin(), f1.end());
+ std::set<typename T::value_type> s2(f2.begin(), f2.end());
+ return s1 == s2;
+}
+
+bool DeviceDescriptor::equals(const sp<DeviceDescriptor>& other) const
+{
+ // Devices are considered equal if they:
+ // - are of the same type (a device type cannot be AUDIO_DEVICE_NONE)
+ // - have the same address
+ // - have the same encodingFormats (if device supports encoding)
+ if (other == 0) {
+ return false;
+ }
+
+ return (mDeviceType == other->mDeviceType) && (mAddress == other->mAddress) &&
+ checkEqual(mEncodedFormats, other->mEncodedFormats);
+}
+
+bool DeviceDescriptor::hasCurrentEncodedFormat() const
+{
+ if (!device_has_encoding_capability(type())) {
+ return true;
+ }
+ if (mEncodedFormats.empty()) {
+ return true;
+ }
+
+ return (mCurrentEncodedFormat != AUDIO_FORMAT_DEFAULT);
+}
+
+bool DeviceDescriptor::supportsFormat(audio_format_t format)
+{
+ if (mEncodedFormats.empty()) {
+ return true;
+ }
+
+ for (const auto& devFormat : mEncodedFormats) {
+ if (devFormat == format) {
+ return true;
+ }
+ }
+ return false;
+}
+
+void DeviceVector::refreshTypes()
+{
+ mDeviceTypes = AUDIO_DEVICE_NONE;
+ for (size_t i = 0; i < size(); i++) {
+ mDeviceTypes |= itemAt(i)->type();
+ }
+ ALOGV("DeviceVector::refreshTypes() mDeviceTypes %08x", mDeviceTypes);
+}
+
+ssize_t DeviceVector::indexOf(const sp<DeviceDescriptor>& item) const
+{
+ for (size_t i = 0; i < size(); i++) {
+ if (itemAt(i)->equals(item)) { // item may be null sp<>, i.e. AUDIO_DEVICE_NONE
+ return i;
+ }
+ }
+ return -1;
+}
+
+void DeviceVector::add(const DeviceVector &devices)
+{
+ bool added = false;
+ for (const auto& device : devices) {
+ if (indexOf(device) < 0 && SortedVector::add(device) >= 0) {
+ added = true;
+ }
+ }
+ if (added) {
+ refreshTypes();
+ }
+}
+
+ssize_t DeviceVector::add(const sp<DeviceDescriptor>& item)
+{
+ ssize_t ret = indexOf(item);
+
+ if (ret < 0) {
+ ret = SortedVector::add(item);
+ if (ret >= 0) {
+ refreshTypes();
+ }
+ } else {
+ ALOGW("DeviceVector::add device %08x already in", item->type());
+ ret = -1;
+ }
+ return ret;
+}
+
+ssize_t DeviceVector::remove(const sp<DeviceDescriptor>& item)
+{
+ ssize_t ret = indexOf(item);
+
+ if (ret < 0) {
+ ALOGW("DeviceVector::remove device %08x not in", item->type());
+ } else {
+ ret = SortedVector::removeAt(ret);
+ if (ret >= 0) {
+ refreshTypes();
+ }
+ }
+ return ret;
+}
+
+void DeviceVector::remove(const DeviceVector &devices)
+{
+ for (const auto& device : devices) {
+ remove(device);
+ }
+}
+
+DeviceVector DeviceVector::getDevicesFromHwModule(audio_module_handle_t moduleHandle) const
+{
+ DeviceVector devices;
+ for (const auto& device : *this) {
+ if (device->getModuleHandle() == moduleHandle) {
+ devices.add(device);
+ }
+ }
+ return devices;
+}
+
+audio_devices_t DeviceVector::getDeviceTypesFromHwModule(audio_module_handle_t moduleHandle) const
+{
+ audio_devices_t deviceTypes = AUDIO_DEVICE_NONE;
+ for (const auto& device : *this) {
+ if (device->getModuleHandle() == moduleHandle) {
+ deviceTypes |= device->type();
+ }
+ }
+ return deviceTypes;
+}
+
+sp<DeviceDescriptor> DeviceVector::getDevice(audio_devices_t type, const String8& address,
+ audio_format_t format) const
+{
+ sp<DeviceDescriptor> device;
+ for (size_t i = 0; i < size(); i++) {
+ if (itemAt(i)->type() == type) {
+ // If format is specified, match it and ignore address
+ // Otherwise if address is specified match it
+ // Otherwise always match
+ if (((address == "" || itemAt(i)->address() == address) &&
+ format == AUDIO_FORMAT_DEFAULT) ||
+ (itemAt(i)->supportsFormat(format) && format != AUDIO_FORMAT_DEFAULT)) {
+ device = itemAt(i);
+ if (itemAt(i)->address() == address) {
+ break;
+ }
+ }
+ }
+ }
+ ALOGV("DeviceVector::%s() for type %08x address \"%s\" found %p format %08x",
+ __func__, type, address.string(), device.get(), format);
+ return device;
+}
+
+sp<DeviceDescriptor> DeviceVector::getDeviceFromId(audio_port_handle_t id) const
+{
+ if (id != AUDIO_PORT_HANDLE_NONE) {
+ for (const auto& device : *this) {
+ if (device->getId() == id) {
+ return device;
+ }
+ }
+ }
+ return nullptr;
+}
+
+DeviceVector DeviceVector::getDevicesFromTypeMask(audio_devices_t type) const
+{
+ DeviceVector devices;
+ bool isOutput = audio_is_output_devices(type);
+ type &= ~AUDIO_DEVICE_BIT_IN;
+ for (size_t i = 0; (i < size()) && (type != AUDIO_DEVICE_NONE); i++) {
+ bool curIsOutput = audio_is_output_devices(itemAt(i)->type());
+ audio_devices_t curType = itemAt(i)->type() & ~AUDIO_DEVICE_BIT_IN;
+ if ((isOutput == curIsOutput) && ((type & curType) != 0)) {
+ devices.add(itemAt(i));
+ ALOGV("DeviceVector::%s() for type %08x found %p",
+ __func__, itemAt(i)->type(), itemAt(i).get());
+ }
+ }
+ return devices;
+}
+
+sp<DeviceDescriptor> DeviceVector::getDeviceFromTagName(const std::string &tagName) const
+{
+ for (const auto& device : *this) {
+ if (device->getTagName() == tagName) {
+ return device;
+ }
+ }
+ return nullptr;
+}
+
+DeviceVector DeviceVector::getFirstDevicesFromTypes(
+ std::vector<audio_devices_t> orderedTypes) const
+{
+ DeviceVector devices;
+ for (auto deviceType : orderedTypes) {
+ if (!(devices = getDevicesFromTypeMask(deviceType)).isEmpty()) {
+ break;
+ }
+ }
+ return devices;
+}
+
+sp<DeviceDescriptor> DeviceVector::getFirstExistingDevice(
+ std::vector<audio_devices_t> orderedTypes) const {
+ sp<DeviceDescriptor> device;
+ for (auto deviceType : orderedTypes) {
+ if ((device = getDevice(deviceType, String8(""), AUDIO_FORMAT_DEFAULT)) != nullptr) {
+ break;
+ }
+ }
+ return device;
+}
+
+void DeviceVector::replaceDevicesByType(
+ audio_devices_t typeToRemove, const DeviceVector &devicesToAdd) {
+ DeviceVector devicesToRemove = getDevicesFromTypeMask(typeToRemove);
+ if (!devicesToRemove.isEmpty() && !devicesToAdd.isEmpty()) {
+ remove(devicesToRemove);
+ add(devicesToAdd);
+ }
+}
+
+void DeviceVector::dump(String8 *dst, const String8 &tag, int spaces, bool verbose) const
+{
+ if (isEmpty()) {
+ return;
+ }
+ dst->appendFormat("%*s- %s devices:\n", spaces, "", tag.string());
+ for (size_t i = 0; i < size(); i++) {
+ itemAt(i)->dump(dst, spaces + 2, i, verbose);
+ }
+}
+
+status_t DeviceDescriptor::applyAudioPortConfig(const struct audio_port_config *config,
+ audio_port_config *backupConfig)
+{
+ struct audio_port_config localBackupConfig = { .config_mask = config->config_mask };
+ status_t status = NO_ERROR;
+
+ toAudioPortConfig(&localBackupConfig);
+ if ((status = validationBeforeApplyConfig(config)) == NO_ERROR) {
+ AudioPortConfig::applyAudioPortConfig(config, backupConfig);
+ applyPolicyAudioPortConfig(config);
+ }
+
+ if (backupConfig != NULL) {
+ *backupConfig = localBackupConfig;
+ }
+ return status;
+}
+
+void DeviceDescriptor::toAudioPortConfig(struct audio_port_config *dstConfig,
+ const struct audio_port_config *srcConfig) const
+{
+ dstConfig->config_mask = AUDIO_PORT_CONFIG_GAIN;
+ if (mSamplingRate != 0) {
+ dstConfig->config_mask |= AUDIO_PORT_CONFIG_SAMPLE_RATE;
+ }
+ if (mChannelMask != AUDIO_CHANNEL_NONE) {
+ dstConfig->config_mask |= AUDIO_PORT_CONFIG_CHANNEL_MASK;
+ }
+ if (mFormat != AUDIO_FORMAT_INVALID) {
+ dstConfig->config_mask |= AUDIO_PORT_CONFIG_FORMAT;
+ }
+
+ if (srcConfig != NULL) {
+ dstConfig->config_mask |= srcConfig->config_mask;
+ }
+
+ AudioPortConfig::toAudioPortConfig(dstConfig, srcConfig);
+ toPolicyAudioPortConfig(dstConfig, srcConfig);
+
+ dstConfig->role = audio_is_output_device(mDeviceType) ?
+ AUDIO_PORT_ROLE_SINK : AUDIO_PORT_ROLE_SOURCE;
+ dstConfig->type = AUDIO_PORT_TYPE_DEVICE;
+ dstConfig->ext.device.type = mDeviceType;
+
+ //TODO Understand why this test is necessary. i.e. why at boot time does it crash
+ // without the test?
+ // This has been demonstrated to NOT be true (at start up)
+ // ALOG_ASSERT(mModule != NULL);
+ dstConfig->ext.device.hw_module = getModuleHandle();
+ (void)audio_utils_strlcpy_zerofill(dstConfig->ext.device.address, mAddress.string());
+}
+
+void DeviceDescriptor::toAudioPort(struct audio_port *port) const
+{
+ ALOGV("DeviceDescriptor::toAudioPort() handle %d type %08x", mId, mDeviceType);
+ AudioPort::toAudioPort(port);
+ port->id = mId;
+ toAudioPortConfig(&port->active_config);
+ port->ext.device.type = mDeviceType;
+ port->ext.device.hw_module = getModuleHandle();
+ (void)audio_utils_strlcpy_zerofill(port->ext.device.address, mAddress.string());
+}
+
+void DeviceDescriptor::importAudioPortAndPickAudioProfile(
+ const sp<PolicyAudioPort>& policyPort, bool force) {
+ if (!force && !policyPort->asAudioPort()->hasDynamicAudioProfile()) {
+ return;
+ }
+ AudioPort::importAudioPort(policyPort->asAudioPort());
+ policyPort->pickAudioProfile(mSamplingRate, mChannelMask, mFormat);
+}
+
+void DeviceDescriptor::dump(String8 *dst, int spaces, int index, bool verbose) const
+{
+ dst->appendFormat("%*sDevice %d:\n", spaces, "", index + 1);
+ if (mId != 0) {
+ dst->appendFormat("%*s- id: %2d\n", spaces, "", mId);
+ }
+ if (!mTagName.empty()) {
+ dst->appendFormat("%*s- tag name: %s\n", spaces, "", mTagName.c_str());
+ }
+
+ dst->appendFormat("%*s- type: %-48s\n", spaces, "", ::android::toString(mDeviceType).c_str());
+
+ if (mAddress.size() != 0) {
+ dst->appendFormat("%*s- address: %-32s\n", spaces, "", mAddress.string());
+ }
+ std::string portStr;
+ AudioPort::dump(&portStr, spaces, verbose);
+ dst->append(portStr.c_str());
+}
+
+std::string DeviceDescriptor::toString() const
+{
+ std::stringstream sstream;
+ sstream << "type:0x" << std::hex << type() << ",@:" << mAddress;
+ return sstream.str();
+}
+
+std::string DeviceVector::toString() const
+{
+ if (isEmpty()) {
+ return {"AUDIO_DEVICE_NONE"};
+ }
+ std::string result = {"{"};
+ for (const auto &device : *this) {
+ if (device != *begin()) {
+ result += ";";
+ }
+ result += device->toString();
+ }
+ return result + "}";
+}
+
+DeviceVector DeviceVector::filter(const DeviceVector &devices) const
+{
+ DeviceVector filteredDevices;
+ for (const auto &device : *this) {
+ if (devices.contains(device)) {
+ filteredDevices.add(device);
+ }
+ }
+ return filteredDevices;
+}
+
+bool DeviceVector::containsAtLeastOne(const DeviceVector &devices) const
+{
+ return !filter(devices).isEmpty();
+}
+
+bool DeviceVector::containsAllDevices(const DeviceVector &devices) const
+{
+ return filter(devices).size() == devices.size();
+}
+
+DeviceVector DeviceVector::filterForEngine() const
+{
+ DeviceVector filteredDevices;
+ for (const auto &device : *this) {
+ if (audio_is_remote_submix_device(device->type()) && device->address() != "0") {
+ continue;
+ }
+ filteredDevices.add(device);
+ }
+ return filteredDevices;
+}
+
+void DeviceDescriptor::log() const
+{
+ ALOGI("Device id:%d type:0x%08X:%s, addr:%s", mId, mDeviceType,
+ ::android::toString(mDeviceType).c_str(),
+ mAddress.string());
+
+ AudioPort::log(" ");
+}
+
+} // namespace android
diff --git a/media/libaudiofoundation/include/media/DeviceDescriptorBase.h b/media/libaudiofoundation/include/media/DeviceDescriptorBase.h
new file mode 100644
index 0000000..6c1035c
--- /dev/null
+++ b/media/libaudiofoundation/include/media/DeviceDescriptorBase.h
@@ -0,0 +1,239 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include "PolicyAudioPort.h"
+#include <utils/Errors.h>
+#include <utils/String8.h>
+#include <utils/SortedVector.h>
+#include <cutils/config_utils.h>
+#include <system/audio.h>
+#include <system/audio_policy.h>
+
+namespace android {
+
+class DeviceDescriptor : public AudioPort, public AudioPortConfig,
+ public PolicyAudioPort, public PolicyAudioPortConfig
+{
+public:
+ // Note that empty name refers by convention to a generic device.
+ explicit DeviceDescriptor(audio_devices_t type, const std::string &tagName = "");
+ DeviceDescriptor(audio_devices_t type, const FormatVector &encodedFormats,
+ const std::string &tagName = "");
+
+ virtual ~DeviceDescriptor() {}
+
+ virtual void addAudioProfile(const sp<AudioProfile> &profile) {
+ addAudioProfileAndSort(mProfiles, profile);
+ }
+
+ virtual const std::string getTagName() const { return mTagName; }
+
+ audio_devices_t type() const { return mDeviceType; }
+ String8 address() const { return mAddress; }
+ void setAddress(const String8 &address) { mAddress = address; }
+
+ const FormatVector& encodedFormats() const { return mEncodedFormats; }
+
+ audio_format_t getEncodedFormat() { return mCurrentEncodedFormat; }
+
+ void setEncodedFormat(audio_format_t format) {
+ mCurrentEncodedFormat = format;
+ }
+
+ bool equals(const sp<DeviceDescriptor>& other) const;
+
+ bool hasCurrentEncodedFormat() const;
+
+ bool supportsFormat(audio_format_t format);
+
+ // PolicyAudioPortConfig
+ virtual sp<PolicyAudioPort> getPolicyAudioPort() const {
+ return static_cast<PolicyAudioPort*>(const_cast<DeviceDescriptor*>(this));
+ }
+
+ // AudioPortConfig
+ virtual sp<AudioPort> getAudioPort() const {
+ return static_cast<AudioPort*>(const_cast<DeviceDescriptor*>(this));
+ }
+ virtual status_t applyAudioPortConfig(const struct audio_port_config *config,
+ struct audio_port_config *backupConfig = NULL);
+ virtual void toAudioPortConfig(struct audio_port_config *dstConfig,
+ const struct audio_port_config *srcConfig = NULL) const;
+
+ // PolicyAudioPort
+ virtual sp<AudioPort> asAudioPort() const {
+ return static_cast<AudioPort*>(const_cast<DeviceDescriptor*>(this));
+ }
+ virtual void attach(const sp<HwModule>& module);
+ virtual void detach();
+
+ // AudioPort
+ virtual void toAudioPort(struct audio_port *port) const;
+
+ void importAudioPortAndPickAudioProfile(const sp<PolicyAudioPort>& policyPort,
+ bool force = false);
+
+ void dump(String8 *dst, int spaces, int index, bool verbose = true) const;
+ void log() const;
+ std::string toString() const;
+
+private:
+ String8 mAddress{""};
+ std::string mTagName; // Unique human readable identifier for a device port found in conf file.
+ audio_devices_t mDeviceType;
+ FormatVector mEncodedFormats;
+ audio_format_t mCurrentEncodedFormat;
+};
+
+class DeviceVector : public SortedVector<sp<DeviceDescriptor> >
+{
+public:
+ DeviceVector() : SortedVector(), mDeviceTypes(AUDIO_DEVICE_NONE) {}
+ explicit DeviceVector(const sp<DeviceDescriptor>& item) : DeviceVector()
+ {
+ add(item);
+ }
+
+ ssize_t add(const sp<DeviceDescriptor>& item);
+ void add(const DeviceVector &devices);
+ ssize_t remove(const sp<DeviceDescriptor>& item);
+ void remove(const DeviceVector &devices);
+ ssize_t indexOf(const sp<DeviceDescriptor>& item) const;
+
+ audio_devices_t types() const { return mDeviceTypes; }
+
+ // If 'address' is empty and 'codec' is AUDIO_FORMAT_DEFAULT, a device with a non-empty
+ // address may be returned if there is no device with the specified 'type' and empty address.
+ sp<DeviceDescriptor> getDevice(audio_devices_t type, const String8 &address,
+ audio_format_t codec) const;
+ DeviceVector getDevicesFromTypeMask(audio_devices_t types) const;
+
+ /**
+ * @brief getDeviceFromId
+ * @param id of the DeviceDescriptor to seach (aka Port handle).
+ * @return DeviceDescriptor associated to port id if found, nullptr otherwise. If the id is
+ * equal to AUDIO_PORT_HANDLE_NONE, it also returns a nullptr.
+ */
+ sp<DeviceDescriptor> getDeviceFromId(audio_port_handle_t id) const;
+ sp<DeviceDescriptor> getDeviceFromTagName(const std::string &tagName) const;
+ DeviceVector getDevicesFromHwModule(audio_module_handle_t moduleHandle) const;
+ audio_devices_t getDeviceTypesFromHwModule(audio_module_handle_t moduleHandle) const;
+
+ DeviceVector getFirstDevicesFromTypes(std::vector<audio_devices_t> orderedTypes) const;
+ sp<DeviceDescriptor> getFirstExistingDevice(std::vector<audio_devices_t> orderedTypes) const;
+
+ // If there are devices with the given type and the devices to add is not empty,
+ // remove all the devices with the given type and add all the devices to add.
+ void replaceDevicesByType(audio_devices_t typeToRemove, const DeviceVector &devicesToAdd);
+
+ bool contains(const sp<DeviceDescriptor>& item) const { return indexOf(item) >= 0; }
+
+ /**
+ * @brief containsAtLeastOne
+ * @param devices vector of devices to check against.
+ * @return true if the DeviceVector contains at list one of the devices from the given vector.
+ */
+ bool containsAtLeastOne(const DeviceVector &devices) const;
+
+ /**
+ * @brief containsAllDevices
+ * @param devices vector of devices to check against.
+ * @return true if the DeviceVector contains all the devices from the given vector
+ */
+ bool containsAllDevices(const DeviceVector &devices) const;
+
+ /**
+ * @brief filter the devices supported by this collection against another collection
+ * @param devices to filter against
+ * @return a filtered DeviceVector
+ */
+ DeviceVector filter(const DeviceVector &devices) const;
+
+ /**
+ * @brief filter the devices supported by this collection before sending
+ * then to the Engine via AudioPolicyManagerObserver interface
+ * @return a filtered DeviceVector
+ */
+ DeviceVector filterForEngine() const;
+
+ /**
+ * @brief merge two vectors. As SortedVector Implementation is buggy (it does not check the size
+ * of the destination vector, only of the source, it provides a safe implementation
+ * @param devices source device vector to merge with
+ * @return size of the merged vector.
+ */
+ ssize_t merge(const DeviceVector &devices)
+ {
+ if (isEmpty()) {
+ add(devices);
+ return size();
+ }
+ return SortedVector::merge(devices);
+ }
+
+ /**
+ * @brief operator == DeviceVector are equals if all the DeviceDescriptor can be found (aka
+ * DeviceDescriptor with same type and address) and the vector has same size.
+ * @param right DeviceVector to compare to.
+ * @return true if right contains the same device and has the same size.
+ */
+ bool operator==(const DeviceVector &right) const
+ {
+ if (size() != right.size()) {
+ return false;
+ }
+ for (const auto &device : *this) {
+ if (right.indexOf(device) < 0) {
+ return false;
+ }
+ }
+ return true;
+ }
+
+ bool operator!=(const DeviceVector &right) const
+ {
+ return !operator==(right);
+ }
+
+ /**
+ * @brief getFirstValidAddress
+ * @return the first valid address of a list of device, "" if no device with valid address
+ * found.
+ * This helper function helps maintaining compatibility with legacy where we used to have a
+ * devices mask and an address.
+ */
+ String8 getFirstValidAddress() const
+ {
+ for (const auto &device : *this) {
+ if (device->address() != "") {
+ return device->address();
+ }
+ }
+ return String8("");
+ }
+
+ std::string toString() const;
+
+ void dump(String8 *dst, const String8 &tag, int spaces = 0, bool verbose = true) const;
+
+private:
+ void refreshTypes();
+ audio_devices_t mDeviceTypes;
+};
+
+} // namespace android