audio/effect/all-versions/default/EqualizerEffect.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 "Equalizer_HAL"

 #include "EqualizerEffect.h"

 #include <memory.h>

 #include <android/log.h>

 #include "VersionUtils.h"

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

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

 void EqualizerEffect::propertiesFromHal(const t_equalizer_settings& halProperties,
                                         IEqualizerEffect::AllProperties* properties) {
     properties->curPreset = halProperties.curPreset;
     // t_equalizer_settings incorrectly defines bandLevels as uint16_t,
     // whereas the actual type of values used by effects is int16_t.
     const int16_t* signedBandLevels =
         reinterpret_cast<const int16_t*>(&halProperties.bandLevels[0]);
     properties->bandLevels.setToExternal(const_cast<int16_t*>(signedBandLevels),
                                          halProperties.numBands);
 }

 std::vector<uint8_t> EqualizerEffect::propertiesToHal(
     const IEqualizerEffect::AllProperties& properties, t_equalizer_settings** halProperties) {
     size_t bandsSize = properties.bandLevels.size() * sizeof(uint16_t);
     std::vector<uint8_t> halBuffer(sizeof(t_equalizer_settings) + bandsSize, 0);
     *halProperties = reinterpret_cast<t_equalizer_settings*>(&halBuffer[0]);
     (*halProperties)->curPreset = properties.curPreset;
     (*halProperties)->numBands = properties.bandLevels.size();
     memcpy((*halProperties)->bandLevels, &properties.bandLevels[0], bandsSize);
     return halBuffer;
 }

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

 // Methods from ::android::hardware::audio::effect::CPP_VERSION::IEqualizerEffect follow.
 Return<void> EqualizerEffect::getNumBands(getNumBands_cb _hidl_cb) {
     return mEffect->getIntegerParam(EQ_PARAM_NUM_BANDS, _hidl_cb);
 }

 Return<void> EqualizerEffect::getLevelRange(getLevelRange_cb _hidl_cb) {
     int16_t halLevels[2] = {0, 0};
     Result retval = mEffect->getParam(EQ_PARAM_LEVEL_RANGE, halLevels);
     _hidl_cb(retval, halLevels[0], halLevels[1]);
     return Void();
 }

 Return<Result> EqualizerEffect::setBandLevel(uint16_t band, int16_t level) {
     return mEffect->setParam(EQ_PARAM_BAND_LEVEL, band, level);
 }

 Return<void> EqualizerEffect::getBandLevel(uint16_t band, getBandLevel_cb _hidl_cb) {
     int16_t halLevel = 0;
     Result retval = mEffect->getParam(EQ_PARAM_BAND_LEVEL, band, halLevel);
     _hidl_cb(retval, halLevel);
     return Void();
 }

 Return<void> EqualizerEffect::getBandCenterFrequency(uint16_t band,
                                                      getBandCenterFrequency_cb _hidl_cb) {
     uint32_t halFreq = 0;
     Result retval = mEffect->getParam(EQ_PARAM_CENTER_FREQ, band, halFreq);
     _hidl_cb(retval, halFreq);
     return Void();
 }

 Return<void> EqualizerEffect::getBandFrequencyRange(uint16_t band,
                                                     getBandFrequencyRange_cb _hidl_cb) {
     uint32_t halFreqs[2] = {0, 0};
     Result retval = mEffect->getParam(EQ_PARAM_BAND_FREQ_RANGE, band, halFreqs);
     _hidl_cb(retval, halFreqs[0], halFreqs[1]);
     return Void();
 }

 Return<void> EqualizerEffect::getBandForFrequency(uint32_t freq, getBandForFrequency_cb _hidl_cb) {
     uint16_t halBand = 0;
     Result retval = mEffect->getParam(EQ_PARAM_GET_BAND, freq, halBand);
     _hidl_cb(retval, halBand);
     return Void();
 }

 Return<void> EqualizerEffect::getPresetNames(getPresetNames_cb _hidl_cb) {
     uint16_t halPresetCount = 0;
     Result retval = mEffect->getParam(EQ_PARAM_GET_NUM_OF_PRESETS, halPresetCount);
     hidl_vec<hidl_string> presetNames;
     if (retval == Result::OK) {
         presetNames.resize(halPresetCount);
         for (uint16_t i = 0; i < halPresetCount; ++i) {
             char halPresetName[EFFECT_STRING_LEN_MAX];
             retval = mEffect->getParam(EQ_PARAM_GET_PRESET_NAME, i, halPresetName);
             if (retval == Result::OK) {
                 presetNames[i] = halPresetName;
             } else {
                 presetNames.resize(i);
             }
         }
     }
     _hidl_cb(retval, presetNames);
     return Void();
 }

 Return<Result> EqualizerEffect::setCurrentPreset(uint16_t preset) {
     return mEffect->setParam(EQ_PARAM_CUR_PRESET, preset);
 }

 Return<void> EqualizerEffect::getCurrentPreset(getCurrentPreset_cb _hidl_cb) {
     return mEffect->getIntegerParam(EQ_PARAM_CUR_PRESET, _hidl_cb);
 }

 Return<Result> EqualizerEffect::setAllProperties(
     const IEqualizerEffect::AllProperties& properties) {
     t_equalizer_settings* halPropertiesPtr = nullptr;
     std::vector<uint8_t> halBuffer = propertiesToHal(properties, &halPropertiesPtr);
     uint32_t paramId = EQ_PARAM_PROPERTIES;
     return mEffect->setParameterImpl(sizeof(paramId), &paramId, halBuffer.size(), halPropertiesPtr);
 }

 Return<void> EqualizerEffect::getAllProperties(getAllProperties_cb _hidl_cb) {
     uint16_t numBands = 0;
     Result retval = mEffect->getParam(EQ_PARAM_NUM_BANDS, numBands);
     AllProperties properties;
     if (retval != Result::OK) {
         _hidl_cb(retval, properties);
         return Void();
     }
     size_t valueSize = sizeof(t_equalizer_settings) + sizeof(int16_t) * numBands;
     uint32_t paramId = EQ_PARAM_PROPERTIES;
     retval = mEffect->getParameterImpl(
         sizeof(paramId), &paramId, valueSize, [&](uint32_t, const void* valueData) {
             const t_equalizer_settings* halProperties =
                 reinterpret_cast<const t_equalizer_settings*>(valueData);
             propertiesFromHal(*halProperties, &properties);
         });
     _hidl_cb(retval, properties);
     return Void();
 }

 }  // 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 "Equalizer_HAL"

	#include "EqualizerEffect.h"

	#include <memory.h>

	#include <android/log.h>

	#include "VersionUtils.h"

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

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

	void EqualizerEffect::propertiesFromHal(const t_equalizer_settings& halProperties,
	IEqualizerEffect::AllProperties* properties) {
	properties->curPreset = halProperties.curPreset;
	// t_equalizer_settings incorrectly defines bandLevels as uint16_t,
	// whereas the actual type of values used by effects is int16_t.
	const int16_t* signedBandLevels =
	reinterpret_cast<const int16_t*>(&halProperties.bandLevels[0]);
	properties->bandLevels.setToExternal(const_cast<int16_t*>(signedBandLevels),
	halProperties.numBands);
	}

	std::vector<uint8_t> EqualizerEffect::propertiesToHal(
	const IEqualizerEffect::AllProperties& properties, t_equalizer_settings** halProperties) {
	size_t bandsSize = properties.bandLevels.size() * sizeof(uint16_t);
	std::vector<uint8_t> halBuffer(sizeof(t_equalizer_settings) + bandsSize, 0);
	halProperties = reinterpret_cast<t_equalizer_settings>(&halBuffer[0]);
	(*halProperties)->curPreset = properties.curPreset;
	(*halProperties)->numBands = properties.bandLevels.size();
	memcpy((*halProperties)->bandLevels, &properties.bandLevels[0], bandsSize);
	return halBuffer;
	}

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

	// Methods from ::android::hardware::audio::effect::CPP_VERSION::IEqualizerEffect follow.
	Return<void> EqualizerEffect::getNumBands(getNumBands_cb _hidl_cb) {
	return mEffect->getIntegerParam(EQ_PARAM_NUM_BANDS, _hidl_cb);
	}

	Return<void> EqualizerEffect::getLevelRange(getLevelRange_cb _hidl_cb) {
	int16_t halLevels[2] = {0, 0};
	Result retval = mEffect->getParam(EQ_PARAM_LEVEL_RANGE, halLevels);
	_hidl_cb(retval, halLevels[0], halLevels[1]);
	return Void();
	}

	Return<Result> EqualizerEffect::setBandLevel(uint16_t band, int16_t level) {
	return mEffect->setParam(EQ_PARAM_BAND_LEVEL, band, level);
	}

	Return<void> EqualizerEffect::getBandLevel(uint16_t band, getBandLevel_cb _hidl_cb) {
	int16_t halLevel = 0;
	Result retval = mEffect->getParam(EQ_PARAM_BAND_LEVEL, band, halLevel);
	_hidl_cb(retval, halLevel);
	return Void();
	}

	Return<void> EqualizerEffect::getBandCenterFrequency(uint16_t band,
	getBandCenterFrequency_cb _hidl_cb) {
	uint32_t halFreq = 0;
	Result retval = mEffect->getParam(EQ_PARAM_CENTER_FREQ, band, halFreq);
	_hidl_cb(retval, halFreq);
	return Void();
	}

	Return<void> EqualizerEffect::getBandFrequencyRange(uint16_t band,
	getBandFrequencyRange_cb _hidl_cb) {
	uint32_t halFreqs[2] = {0, 0};
	Result retval = mEffect->getParam(EQ_PARAM_BAND_FREQ_RANGE, band, halFreqs);
	_hidl_cb(retval, halFreqs[0], halFreqs[1]);
	return Void();
	}

	Return<void> EqualizerEffect::getBandForFrequency(uint32_t freq, getBandForFrequency_cb _hidl_cb) {
	uint16_t halBand = 0;
	Result retval = mEffect->getParam(EQ_PARAM_GET_BAND, freq, halBand);
	_hidl_cb(retval, halBand);
	return Void();
	}

	Return<void> EqualizerEffect::getPresetNames(getPresetNames_cb _hidl_cb) {
	uint16_t halPresetCount = 0;
	Result retval = mEffect->getParam(EQ_PARAM_GET_NUM_OF_PRESETS, halPresetCount);
	hidl_vec<hidl_string> presetNames;
	if (retval == Result::OK) {
	presetNames.resize(halPresetCount);
	for (uint16_t i = 0; i < halPresetCount; ++i) {
	char halPresetName[EFFECT_STRING_LEN_MAX];
	retval = mEffect->getParam(EQ_PARAM_GET_PRESET_NAME, i, halPresetName);
	if (retval == Result::OK) {
	presetNames[i] = halPresetName;
	} else {
	presetNames.resize(i);
	}
	}
	}
	_hidl_cb(retval, presetNames);
	return Void();
	}

	Return<Result> EqualizerEffect::setCurrentPreset(uint16_t preset) {
	return mEffect->setParam(EQ_PARAM_CUR_PRESET, preset);
	}

	Return<void> EqualizerEffect::getCurrentPreset(getCurrentPreset_cb _hidl_cb) {
	return mEffect->getIntegerParam(EQ_PARAM_CUR_PRESET, _hidl_cb);
	}

	Return<Result> EqualizerEffect::setAllProperties(
	const IEqualizerEffect::AllProperties& properties) {
	t_equalizer_settings* halPropertiesPtr = nullptr;
	std::vector<uint8_t> halBuffer = propertiesToHal(properties, &halPropertiesPtr);
	uint32_t paramId = EQ_PARAM_PROPERTIES;
	return mEffect->setParameterImpl(sizeof(paramId), &paramId, halBuffer.size(), halPropertiesPtr);
	}

	Return<void> EqualizerEffect::getAllProperties(getAllProperties_cb _hidl_cb) {
	uint16_t numBands = 0;
	Result retval = mEffect->getParam(EQ_PARAM_NUM_BANDS, numBands);
	AllProperties properties;
	if (retval != Result::OK) {
	_hidl_cb(retval, properties);
	return Void();
	}
	size_t valueSize = sizeof(t_equalizer_settings) + sizeof(int16_t) * numBands;
	uint32_t paramId = EQ_PARAM_PROPERTIES;
	retval = mEffect->getParameterImpl(
	sizeof(paramId), &paramId, valueSize, [&](uint32_t, const void* valueData) {
	const t_equalizer_settings* halProperties =
	reinterpret_cast<const t_equalizer_settings*>(valueData);
	propertiesFromHal(*halProperties, &properties);
	});
	_hidl_cb(retval, properties);
	return Void();
	}

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