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      1 /*
      2  * Copyright (C) 2018 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef ANDROID_HARDWARE_AUDIO_EFFECT_EQUALIZEREFFECT_H
     18 #define ANDROID_HARDWARE_AUDIO_EFFECT_EQUALIZEREFFECT_H
     19 
     20 #include PATH(android/hardware/audio/effect/FILE_VERSION/IEqualizerEffect.h)
     21 
     22 #include "Effect.h"
     23 
     24 #include <vector>
     25 
     26 #include <system/audio_effects/effect_equalizer.h>
     27 
     28 #include <hidl/Status.h>
     29 
     30 #include <hidl/MQDescriptor.h>
     31 
     32 #include "VersionUtils.h"
     33 
     34 namespace android {
     35 namespace hardware {
     36 namespace audio {
     37 namespace effect {
     38 namespace CPP_VERSION {
     39 namespace implementation {
     40 
     41 using ::android::sp;
     42 using ::android::hardware::hidl_string;
     43 using ::android::hardware::hidl_vec;
     44 using ::android::hardware::Return;
     45 using ::android::hardware::Void;
     46 using namespace ::android::hardware::audio::common::CPP_VERSION;
     47 using namespace ::android::hardware::audio::effect::CPP_VERSION;
     48 
     49 struct EqualizerEffect : public IEqualizerEffect {
     50     explicit EqualizerEffect(effect_handle_t handle);
     51 
     52     // Methods from ::android::hardware::audio::effect::CPP_VERSION::IEffect follow.
     53     Return<Result> init() override;
     54     Return<Result> setConfig(
     55         const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
     56         const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
     57     Return<Result> reset() override;
     58     Return<Result> enable() override;
     59     Return<Result> disable() override;
     60     Return<Result> setDevice(AudioDeviceBitfield device) override;
     61     Return<void> setAndGetVolume(const hidl_vec<uint32_t>& volumes,
     62                                  setAndGetVolume_cb _hidl_cb) override;
     63     Return<Result> volumeChangeNotification(const hidl_vec<uint32_t>& volumes) override;
     64     Return<Result> setAudioMode(AudioMode mode) override;
     65     Return<Result> setConfigReverse(
     66         const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
     67         const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
     68     Return<Result> setInputDevice(AudioDeviceBitfield device) override;
     69     Return<void> getConfig(getConfig_cb _hidl_cb) override;
     70     Return<void> getConfigReverse(getConfigReverse_cb _hidl_cb) override;
     71     Return<void> getSupportedAuxChannelsConfigs(
     72         uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) override;
     73     Return<void> getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) override;
     74     Return<Result> setAuxChannelsConfig(const EffectAuxChannelsConfig& config) override;
     75     Return<Result> setAudioSource(AudioSource source) override;
     76     Return<Result> offload(const EffectOffloadParameter& param) override;
     77     Return<void> getDescriptor(getDescriptor_cb _hidl_cb) override;
     78     Return<void> prepareForProcessing(prepareForProcessing_cb _hidl_cb) override;
     79     Return<Result> setProcessBuffers(const AudioBuffer& inBuffer,
     80                                      const AudioBuffer& outBuffer) override;
     81     Return<void> command(uint32_t commandId, const hidl_vec<uint8_t>& data, uint32_t resultMaxSize,
     82                          command_cb _hidl_cb) override;
     83     Return<Result> setParameter(const hidl_vec<uint8_t>& parameter,
     84                                 const hidl_vec<uint8_t>& value) override;
     85     Return<void> getParameter(const hidl_vec<uint8_t>& parameter, uint32_t valueMaxSize,
     86                               getParameter_cb _hidl_cb) override;
     87     Return<void> getSupportedConfigsForFeature(uint32_t featureId, uint32_t maxConfigs,
     88                                                uint32_t configSize,
     89                                                getSupportedConfigsForFeature_cb _hidl_cb) override;
     90     Return<void> getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize,
     91                                             getCurrentConfigForFeature_cb _hidl_cb) override;
     92     Return<Result> setCurrentConfigForFeature(uint32_t featureId,
     93                                               const hidl_vec<uint8_t>& configData) override;
     94     Return<Result> close() override;
     95     Return<void> debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) override;
     96 
     97     // Methods from ::android::hardware::audio::effect::CPP_VERSION::IEqualizerEffect follow.
     98     Return<void> getNumBands(getNumBands_cb _hidl_cb) override;
     99     Return<void> getLevelRange(getLevelRange_cb _hidl_cb) override;
    100     Return<Result> setBandLevel(uint16_t band, int16_t level) override;
    101     Return<void> getBandLevel(uint16_t band, getBandLevel_cb _hidl_cb) override;
    102     Return<void> getBandCenterFrequency(uint16_t band, getBandCenterFrequency_cb _hidl_cb) override;
    103     Return<void> getBandFrequencyRange(uint16_t band, getBandFrequencyRange_cb _hidl_cb) override;
    104     Return<void> getBandForFrequency(uint32_t freq, getBandForFrequency_cb _hidl_cb) override;
    105     Return<void> getPresetNames(getPresetNames_cb _hidl_cb) override;
    106     Return<Result> setCurrentPreset(uint16_t preset) override;
    107     Return<void> getCurrentPreset(getCurrentPreset_cb _hidl_cb) override;
    108     Return<Result> setAllProperties(const IEqualizerEffect::AllProperties& properties) override;
    109     Return<void> getAllProperties(getAllProperties_cb _hidl_cb) override;
    110 
    111    private:
    112     sp<Effect> mEffect;
    113 
    114     virtual ~EqualizerEffect();
    115 
    116     void propertiesFromHal(const t_equalizer_settings& halProperties,
    117                            IEqualizerEffect::AllProperties* properties);
    118     std::vector<uint8_t> propertiesToHal(const IEqualizerEffect::AllProperties& properties,
    119                                          t_equalizer_settings** halProperties);
    120 };
    121 
    122 }  // namespace implementation
    123 }  // namespace CPP_VERSION
    124 }  // namespace effect
    125 }  // namespace audio
    126 }  // namespace hardware
    127 }  // namespace android
    128 
    129 #endif  // ANDROID_HARDWARE_AUDIO_EFFECT_EQUALIZEREFFECT_H
    130