audio/effect/all-versions/default/VirtualizerEffect.cpp - LeafOS-Project/android_hardware_interfaces - Gitiles

 /*
  * Copyright (C) 2018 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 "Virtualizer_HAL"

 #include "VirtualizerEffect.h"

 #include <memory.h>
 #include <stdlib.h>

 #include <HidlUtils.h>
 #include <android/log.h>
 #include <system/audio_effects/effect_virtualizer.h>

 #include "VersionUtils.h"

 namespace android {
 namespace hardware {
 namespace audio {
 namespace effect {
 namespace CPP_VERSION {
 namespace implementation {

 using ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION::implementation::HidlUtils;

 VirtualizerEffect::VirtualizerEffect(effect_handle_t handle)
     : mEffect(new Effect(false /*isInput*/, handle)) {}

 // Methods from ::android::hardware::audio::effect::CPP_VERSION::IEffect follow.
 Return<Result> VirtualizerEffect::init() {
     return mEffect->init();
 }

 Return<Result> VirtualizerEffect::setConfig(
     const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
     const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
     return mEffect->setConfig(config, inputBufferProvider, outputBufferProvider);
 }

 Return<Result> VirtualizerEffect::reset() {
     return mEffect->reset();
 }

 Return<Result> VirtualizerEffect::enable() {
     return mEffect->enable();
 }

 Return<Result> VirtualizerEffect::disable() {
     return mEffect->disable();
 }

 #if MAJOR_VERSION <= 6
 Return<Result> VirtualizerEffect::setAudioSource(AudioSource source) {
     return mEffect->setAudioSource(source);
 }

 Return<Result> VirtualizerEffect::setDevice(AudioDeviceBitfield device) {
     return mEffect->setDevice(device);
 }

 Return<Result> VirtualizerEffect::setInputDevice(AudioDeviceBitfield device) {
     return mEffect->setInputDevice(device);
 }
 #else
 Return<Result> VirtualizerEffect::setAudioSource(const AudioSource& source) {
     return mEffect->setAudioSource(source);
 }

 Return<Result> VirtualizerEffect::setDevice(const DeviceAddress& device) {
     return mEffect->setDevice(device);
 }

 Return<Result> VirtualizerEffect::setInputDevice(const DeviceAddress& device) {
     return mEffect->setInputDevice(device);
 }
 #endif

 Return<void> VirtualizerEffect::setAndGetVolume(const hidl_vec<uint32_t>& volumes,
                                                 setAndGetVolume_cb _hidl_cb) {
     return mEffect->setAndGetVolume(volumes, _hidl_cb);
 }

 Return<Result> VirtualizerEffect::volumeChangeNotification(const hidl_vec<uint32_t>& volumes) {
     return mEffect->volumeChangeNotification(volumes);
 }

 Return<Result> VirtualizerEffect::setAudioMode(AudioMode mode) {
     return mEffect->setAudioMode(mode);
 }

 Return<Result> VirtualizerEffect::setConfigReverse(
     const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
     const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
     return mEffect->setConfigReverse(config, inputBufferProvider, outputBufferProvider);
 }

 Return<void> VirtualizerEffect::getConfig(getConfig_cb _hidl_cb) {
     return mEffect->getConfig(_hidl_cb);
 }

 Return<void> VirtualizerEffect::getConfigReverse(getConfigReverse_cb _hidl_cb) {
     return mEffect->getConfigReverse(_hidl_cb);
 }

 Return<void> VirtualizerEffect::getSupportedAuxChannelsConfigs(
     uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) {
     return mEffect->getSupportedAuxChannelsConfigs(maxConfigs, _hidl_cb);
 }

 Return<void> VirtualizerEffect::getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) {
     return mEffect->getAuxChannelsConfig(_hidl_cb);
 }

 Return<Result> VirtualizerEffect::setAuxChannelsConfig(const EffectAuxChannelsConfig& config) {
     return mEffect->setAuxChannelsConfig(config);
 }

 Return<Result> VirtualizerEffect::offload(const EffectOffloadParameter& param) {
     return mEffect->offload(param);
 }

 Return<void> VirtualizerEffect::getDescriptor(getDescriptor_cb _hidl_cb) {
     return mEffect->getDescriptor(_hidl_cb);
 }

 Return<void> VirtualizerEffect::prepareForProcessing(prepareForProcessing_cb _hidl_cb) {
     return mEffect->prepareForProcessing(_hidl_cb);
 }

 Return<Result> VirtualizerEffect::setProcessBuffers(const AudioBuffer& inBuffer,
                                                     const AudioBuffer& outBuffer) {
     return mEffect->setProcessBuffers(inBuffer, outBuffer);
 }

 Return<void> VirtualizerEffect::command(uint32_t commandId, const hidl_vec<uint8_t>& data,
                                         uint32_t resultMaxSize, command_cb _hidl_cb) {
     return mEffect->command(commandId, data, resultMaxSize, _hidl_cb);
 }

 Return<Result> VirtualizerEffect::setParameter(const hidl_vec<uint8_t>& parameter,
                                                const hidl_vec<uint8_t>& value) {
     return mEffect->setParameter(parameter, value);
 }

 Return<void> VirtualizerEffect::getParameter(const hidl_vec<uint8_t>& parameter,
                                              uint32_t valueMaxSize, getParameter_cb _hidl_cb) {
     return mEffect->getParameter(parameter, valueMaxSize, _hidl_cb);
 }

 Return<void> VirtualizerEffect::getSupportedConfigsForFeature(
     uint32_t featureId, uint32_t maxConfigs, uint32_t configSize,
     getSupportedConfigsForFeature_cb _hidl_cb) {
     return mEffect->getSupportedConfigsForFeature(featureId, maxConfigs, configSize, _hidl_cb);
 }

 Return<void> VirtualizerEffect::getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize,
                                                            getCurrentConfigForFeature_cb _hidl_cb) {
     return mEffect->getCurrentConfigForFeature(featureId, configSize, _hidl_cb);
 }

 Return<Result> VirtualizerEffect::setCurrentConfigForFeature(uint32_t featureId,
                                                              const hidl_vec<uint8_t>& configData) {
     return mEffect->setCurrentConfigForFeature(featureId, configData);
 }

 Return<Result> VirtualizerEffect::close() {
     return mEffect->close();
 }

 Return<void> VirtualizerEffect::debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) {
     return mEffect->debug(fd, options);
 }

 // Methods from ::android::hardware::audio::effect::CPP_VERSION::IVirtualizerEffect follow.
 Return<bool> VirtualizerEffect::isStrengthSupported() {
     bool halSupported = false;
     mEffect->getParam(VIRTUALIZER_PARAM_STRENGTH_SUPPORTED, halSupported);
     return halSupported;
 }

 Return<Result> VirtualizerEffect::setStrength(uint16_t strength) {
     return mEffect->setParam(VIRTUALIZER_PARAM_STRENGTH, strength);
 }

 Return<void> VirtualizerEffect::getStrength(getStrength_cb _hidl_cb) {
     return mEffect->getIntegerParam(VIRTUALIZER_PARAM_STRENGTH, _hidl_cb);
 }

 Return<void> VirtualizerEffect::getVirtualSpeakerAngles(
 #if MAJOR_VERSION <= 6
         AudioChannelBitfield mask, AudioDevice device, getVirtualSpeakerAngles_cb _hidl_cb) {
     audio_channel_mask_t halChannelMask = static_cast<audio_channel_mask_t>(mask);
     audio_devices_t halDeviceType = static_cast<audio_devices_t>(device);
 #else
         const AudioChannelMask& mask, const DeviceAddress& device,
         getVirtualSpeakerAngles_cb _hidl_cb) {
     audio_channel_mask_t halChannelMask;
     if (status_t status = HidlUtils::audioChannelMaskToHal(mask, &halChannelMask);
         status != NO_ERROR) {
         _hidl_cb(mEffect->analyzeStatus(__func__, "audioChannelMaskToHal",
                                         Effect::sContextConversion, status),
                  SpeakerAngles{});
         return Void();
     }
     audio_devices_t halDeviceType;
     char halDeviceAddress[AUDIO_DEVICE_MAX_ADDRESS_LEN];
     if (status_t status = HidlUtils::deviceAddressToHal(device, &halDeviceType, halDeviceAddress);
         status != NO_ERROR) {
         _hidl_cb(mEffect->analyzeStatus(__func__, "deviceAddressToHal", Effect::sContextConversion,
                                         status),
                  SpeakerAngles{});
         return Void();
     }
 #endif
     uint32_t channelCount = audio_channel_count_from_out_mask(halChannelMask);
     size_t halSpeakerAnglesSize = sizeof(int32_t) * 3 * channelCount;
     uint32_t halParam[3] = {VIRTUALIZER_PARAM_VIRTUAL_SPEAKER_ANGLES, halChannelMask,
                             halDeviceType};
     SpeakerAngles speakerAngles;
     status_t status = NO_ERROR;
     Result retval = mEffect->getParameterImpl(
             sizeof(halParam), halParam, halSpeakerAnglesSize,
             [&](uint32_t valueSize, const void* valueData) {
                 if (valueSize < halSpeakerAnglesSize) {
                     channelCount = valueSize / (sizeof(int32_t) * 3);
                 }
                 status = speakerAnglesFromHal(reinterpret_cast<const int32_t*>(valueData),
                                               channelCount, speakerAngles);
             });
     if (retval == Result::OK) {
         retval = mEffect->analyzeStatus(__func__, "speakerAnglesFromHal", "", status);
     }
     _hidl_cb(retval, speakerAngles);
     return Void();
 }

 Return<void> VirtualizerEffect::getVirtualizationMode(getVirtualizationMode_cb _hidl_cb) {
     uint32_t halMode = 0;
     Result retval = mEffect->getParam(VIRTUALIZER_PARAM_FORCE_VIRTUALIZATION_MODE, halMode);
 #if MAJOR_VERSION <= 6
     _hidl_cb(retval, AudioDevice(halMode));
 #else
     DeviceAddress device;
     (void)HidlUtils::deviceAddressFromHal(static_cast<audio_devices_t>(halMode), nullptr, &device);
     _hidl_cb(retval, device);
 #endif
     return Void();
 }

 Return<Result> VirtualizerEffect::forceVirtualizationMode(
 #if MAJOR_VERSION <= 6
         AudioDevice device) {
     audio_devices_t halDeviceType = static_cast<audio_devices_t>(device);
 #else
         const DeviceAddress& device) {
     audio_devices_t halDeviceType;
     char halDeviceAddress[AUDIO_DEVICE_MAX_ADDRESS_LEN];
     (void)HidlUtils::deviceAddressToHal(device, &halDeviceType, halDeviceAddress);
 #endif
     return mEffect->setParam(VIRTUALIZER_PARAM_FORCE_VIRTUALIZATION_MODE, halDeviceType);
 }

 #if MAJOR_VERSION <= 6
 // static
 status_t VirtualizerEffect::speakerAnglesFromHal(const int32_t* halAngles, uint32_t channelCount,
                                                  hidl_vec<SpeakerAngle>& speakerAngles) {
     speakerAngles.resize(channelCount);
     for (uint32_t i = 0; i < channelCount; ++i) {
         speakerAngles[i].mask = AudioChannelBitfield(*halAngles++);
         speakerAngles[i].azimuth = *halAngles++;
         speakerAngles[i].elevation = *halAngles++;
     }
     return NO_ERROR;
 }
 #else
 static int compare_channels(const void* lhs, const void* rhs) {
     return *(int32_t*)lhs - *(int32_t*)rhs;
 }

 // static
 status_t VirtualizerEffect::speakerAnglesFromHal(const int32_t* halAngles, uint32_t channelCount,
                                                  SpeakerAngles& speakerAngles) {
     speakerAngles.azimuth.resize(channelCount);
     speakerAngles.elevation.resize(channelCount);
     int32_t halAnglesSorted[channelCount * 3];
     memcpy(halAnglesSorted, halAngles, sizeof(halAnglesSorted));
     // Ensure that channels are ordered from LSb to MSb.
     qsort(halAnglesSorted, channelCount, sizeof(int32_t) * 3, compare_channels);
     audio_channel_mask_t halMask = AUDIO_CHANNEL_NONE;
     int32_t* halAnglesPtr = halAnglesSorted;
     for (uint32_t i = 0; i < channelCount; ++i) {
         halMask = static_cast<audio_channel_mask_t>(halMask | *halAnglesPtr++);
         speakerAngles.azimuth[i] = *halAnglesPtr++;
         speakerAngles.elevation[i] = *halAnglesPtr++;
     }
     return HidlUtils::audioChannelMaskFromHal(halMask, false /*isInput*/, &speakerAngles.mask);
 }
 #endif

 }  // namespace implementation
 }  // namespace CPP_VERSION
 }  // namespace effect
 }  // namespace audio
 }  // namespace hardware
 }  // namespace android
	/*
	* Copyright (C) 2018 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 "Virtualizer_HAL"

	#include "VirtualizerEffect.h"

	#include <memory.h>
	#include <stdlib.h>

	#include <HidlUtils.h>
	#include <android/log.h>
	#include <system/audio_effects/effect_virtualizer.h>

	#include "VersionUtils.h"

	namespace android {
	namespace hardware {
	namespace audio {
	namespace effect {
	namespace CPP_VERSION {
	namespace implementation {

	using ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION::implementation::HidlUtils;

	VirtualizerEffect::VirtualizerEffect(effect_handle_t handle)
	: mEffect(new Effect(false /isInput/, handle)) {}

	// Methods from ::android::hardware::audio::effect::CPP_VERSION::IEffect follow.
	Return<Result> VirtualizerEffect::init() {
	return mEffect->init();
	}

	Return<Result> VirtualizerEffect::setConfig(
	const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
	const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
	return mEffect->setConfig(config, inputBufferProvider, outputBufferProvider);
	}

	Return<Result> VirtualizerEffect::reset() {
	return mEffect->reset();
	}

	Return<Result> VirtualizerEffect::enable() {
	return mEffect->enable();
	}

	Return<Result> VirtualizerEffect::disable() {
	return mEffect->disable();
	}

	#if MAJOR_VERSION <= 6
	Return<Result> VirtualizerEffect::setAudioSource(AudioSource source) {
	return mEffect->setAudioSource(source);
	}

	Return<Result> VirtualizerEffect::setDevice(AudioDeviceBitfield device) {
	return mEffect->setDevice(device);
	}

	Return<Result> VirtualizerEffect::setInputDevice(AudioDeviceBitfield device) {
	return mEffect->setInputDevice(device);
	}
	#else
	Return<Result> VirtualizerEffect::setAudioSource(const AudioSource& source) {
	return mEffect->setAudioSource(source);
	}

	Return<Result> VirtualizerEffect::setDevice(const DeviceAddress& device) {
	return mEffect->setDevice(device);
	}

	Return<Result> VirtualizerEffect::setInputDevice(const DeviceAddress& device) {
	return mEffect->setInputDevice(device);
	}
	#endif

	Return<void> VirtualizerEffect::setAndGetVolume(const hidl_vec<uint32_t>& volumes,
	setAndGetVolume_cb _hidl_cb) {
	return mEffect->setAndGetVolume(volumes, _hidl_cb);
	}

	Return<Result> VirtualizerEffect::volumeChangeNotification(const hidl_vec<uint32_t>& volumes) {
	return mEffect->volumeChangeNotification(volumes);
	}

	Return<Result> VirtualizerEffect::setAudioMode(AudioMode mode) {
	return mEffect->setAudioMode(mode);
	}

	Return<Result> VirtualizerEffect::setConfigReverse(
	const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
	const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
	return mEffect->setConfigReverse(config, inputBufferProvider, outputBufferProvider);
	}

	Return<void> VirtualizerEffect::getConfig(getConfig_cb _hidl_cb) {
	return mEffect->getConfig(_hidl_cb);
	}

	Return<void> VirtualizerEffect::getConfigReverse(getConfigReverse_cb _hidl_cb) {
	return mEffect->getConfigReverse(_hidl_cb);
	}

	Return<void> VirtualizerEffect::getSupportedAuxChannelsConfigs(
	uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) {
	return mEffect->getSupportedAuxChannelsConfigs(maxConfigs, _hidl_cb);
	}

	Return<void> VirtualizerEffect::getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) {
	return mEffect->getAuxChannelsConfig(_hidl_cb);
	}

	Return<Result> VirtualizerEffect::setAuxChannelsConfig(const EffectAuxChannelsConfig& config) {
	return mEffect->setAuxChannelsConfig(config);
	}

	Return<Result> VirtualizerEffect::offload(const EffectOffloadParameter& param) {
	return mEffect->offload(param);
	}

	Return<void> VirtualizerEffect::getDescriptor(getDescriptor_cb _hidl_cb) {
	return mEffect->getDescriptor(_hidl_cb);
	}

	Return<void> VirtualizerEffect::prepareForProcessing(prepareForProcessing_cb _hidl_cb) {
	return mEffect->prepareForProcessing(_hidl_cb);
	}

	Return<Result> VirtualizerEffect::setProcessBuffers(const AudioBuffer& inBuffer,
	const AudioBuffer& outBuffer) {
	return mEffect->setProcessBuffers(inBuffer, outBuffer);
	}

	Return<void> VirtualizerEffect::command(uint32_t commandId, const hidl_vec<uint8_t>& data,
	uint32_t resultMaxSize, command_cb _hidl_cb) {
	return mEffect->command(commandId, data, resultMaxSize, _hidl_cb);
	}

	Return<Result> VirtualizerEffect::setParameter(const hidl_vec<uint8_t>& parameter,
	const hidl_vec<uint8_t>& value) {
	return mEffect->setParameter(parameter, value);
	}

	Return<void> VirtualizerEffect::getParameter(const hidl_vec<uint8_t>& parameter,
	uint32_t valueMaxSize, getParameter_cb _hidl_cb) {
	return mEffect->getParameter(parameter, valueMaxSize, _hidl_cb);
	}

	Return<void> VirtualizerEffect::getSupportedConfigsForFeature(
	uint32_t featureId, uint32_t maxConfigs, uint32_t configSize,
	getSupportedConfigsForFeature_cb _hidl_cb) {
	return mEffect->getSupportedConfigsForFeature(featureId, maxConfigs, configSize, _hidl_cb);
	}

	Return<void> VirtualizerEffect::getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize,
	getCurrentConfigForFeature_cb _hidl_cb) {
	return mEffect->getCurrentConfigForFeature(featureId, configSize, _hidl_cb);
	}

	Return<Result> VirtualizerEffect::setCurrentConfigForFeature(uint32_t featureId,
	const hidl_vec<uint8_t>& configData) {
	return mEffect->setCurrentConfigForFeature(featureId, configData);
	}

	Return<Result> VirtualizerEffect::close() {
	return mEffect->close();
	}

	Return<void> VirtualizerEffect::debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) {
	return mEffect->debug(fd, options);
	}

	// Methods from ::android::hardware::audio::effect::CPP_VERSION::IVirtualizerEffect follow.
	Return<bool> VirtualizerEffect::isStrengthSupported() {
	bool halSupported = false;
	mEffect->getParam(VIRTUALIZER_PARAM_STRENGTH_SUPPORTED, halSupported);
	return halSupported;
	}

	Return<Result> VirtualizerEffect::setStrength(uint16_t strength) {
	return mEffect->setParam(VIRTUALIZER_PARAM_STRENGTH, strength);
	}

	Return<void> VirtualizerEffect::getStrength(getStrength_cb _hidl_cb) {
	return mEffect->getIntegerParam(VIRTUALIZER_PARAM_STRENGTH, _hidl_cb);
	}

	Return<void> VirtualizerEffect::getVirtualSpeakerAngles(
	#if MAJOR_VERSION <= 6
	AudioChannelBitfield mask, AudioDevice device, getVirtualSpeakerAngles_cb _hidl_cb) {
	audio_channel_mask_t halChannelMask = static_cast<audio_channel_mask_t>(mask);
	audio_devices_t halDeviceType = static_cast<audio_devices_t>(device);
	#else
	const AudioChannelMask& mask, const DeviceAddress& device,
	getVirtualSpeakerAngles_cb _hidl_cb) {
	audio_channel_mask_t halChannelMask;
	if (status_t status = HidlUtils::audioChannelMaskToHal(mask, &halChannelMask);
	status != NO_ERROR) {
	_hidl_cb(mEffect->analyzeStatus(__func__, "audioChannelMaskToHal",
	Effect::sContextConversion, status),
	SpeakerAngles{});
	return Void();
	}
	audio_devices_t halDeviceType;
	char halDeviceAddress[AUDIO_DEVICE_MAX_ADDRESS_LEN];
	if (status_t status = HidlUtils::deviceAddressToHal(device, &halDeviceType, halDeviceAddress);
	status != NO_ERROR) {
	_hidl_cb(mEffect->analyzeStatus(__func__, "deviceAddressToHal", Effect::sContextConversion,
	status),
	SpeakerAngles{});
	return Void();
	}
	#endif
	uint32_t channelCount = audio_channel_count_from_out_mask(halChannelMask);
	size_t halSpeakerAnglesSize = sizeof(int32_t) * 3 * channelCount;
	uint32_t halParam[3] = {VIRTUALIZER_PARAM_VIRTUAL_SPEAKER_ANGLES, halChannelMask,
	halDeviceType};
	SpeakerAngles speakerAngles;
	status_t status = NO_ERROR;
	Result retval = mEffect->getParameterImpl(
	sizeof(halParam), halParam, halSpeakerAnglesSize,
	[&](uint32_t valueSize, const void* valueData) {
	if (valueSize < halSpeakerAnglesSize) {
	channelCount = valueSize / (sizeof(int32_t) * 3);
	}
	status = speakerAnglesFromHal(reinterpret_cast<const int32_t*>(valueData),
	channelCount, speakerAngles);
	});
	if (retval == Result::OK) {
	retval = mEffect->analyzeStatus(__func__, "speakerAnglesFromHal", "", status);
	}
	_hidl_cb(retval, speakerAngles);
	return Void();
	}

	Return<void> VirtualizerEffect::getVirtualizationMode(getVirtualizationMode_cb _hidl_cb) {
	uint32_t halMode = 0;
	Result retval = mEffect->getParam(VIRTUALIZER_PARAM_FORCE_VIRTUALIZATION_MODE, halMode);
	#if MAJOR_VERSION <= 6
	_hidl_cb(retval, AudioDevice(halMode));
	#else
	DeviceAddress device;
	(void)HidlUtils::deviceAddressFromHal(static_cast<audio_devices_t>(halMode), nullptr, &device);
	_hidl_cb(retval, device);
	#endif
	return Void();
	}

	Return<Result> VirtualizerEffect::forceVirtualizationMode(
	#if MAJOR_VERSION <= 6
	AudioDevice device) {
	audio_devices_t halDeviceType = static_cast<audio_devices_t>(device);
	#else
	const DeviceAddress& device) {
	audio_devices_t halDeviceType;
	char halDeviceAddress[AUDIO_DEVICE_MAX_ADDRESS_LEN];
	(void)HidlUtils::deviceAddressToHal(device, &halDeviceType, halDeviceAddress);
	#endif
	return mEffect->setParam(VIRTUALIZER_PARAM_FORCE_VIRTUALIZATION_MODE, halDeviceType);
	}

	#if MAJOR_VERSION <= 6
	// static
	status_t VirtualizerEffect::speakerAnglesFromHal(const int32_t* halAngles, uint32_t channelCount,
	hidl_vec<SpeakerAngle>& speakerAngles) {
	speakerAngles.resize(channelCount);
	for (uint32_t i = 0; i < channelCount; ++i) {
	speakerAngles[i].mask = AudioChannelBitfield(*halAngles++);
	speakerAngles[i].azimuth = *halAngles++;
	speakerAngles[i].elevation = *halAngles++;
	}
	return NO_ERROR;
	}
	#else
	static int compare_channels(const void* lhs, const void* rhs) {
	return (int32_t)lhs - (int32_t)rhs;
	}

	// static
	status_t VirtualizerEffect::speakerAnglesFromHal(const int32_t* halAngles, uint32_t channelCount,
	SpeakerAngles& speakerAngles) {
	speakerAngles.azimuth.resize(channelCount);
	speakerAngles.elevation.resize(channelCount);
	int32_t halAnglesSorted[channelCount * 3];
	memcpy(halAnglesSorted, halAngles, sizeof(halAnglesSorted));
	// Ensure that channels are ordered from LSb to MSb.
	qsort(halAnglesSorted, channelCount, sizeof(int32_t) * 3, compare_channels);
	audio_channel_mask_t halMask = AUDIO_CHANNEL_NONE;
	int32_t* halAnglesPtr = halAnglesSorted;
	for (uint32_t i = 0; i < channelCount; ++i) {
	halMask = static_cast<audio_channel_mask_t>(halMask \| *halAnglesPtr++);
	speakerAngles.azimuth[i] = *halAnglesPtr++;
	speakerAngles.elevation[i] = *halAnglesPtr++;
	}
	return HidlUtils::audioChannelMaskFromHal(halMask, false /isInput/, &speakerAngles.mask);
	}
	#endif

	} // namespace implementation
	} // namespace CPP_VERSION
	} // namespace effect
	} // namespace audio
	} // namespace hardware
	} // namespace android