diff --git a/CMakeLists.txt b/CMakeLists.txt
index fb4609f..0133a2f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,5 +1,7 @@
 cmake_minimum_required(VERSION 3.16.3)
+
 set(CMAKE_CXX_COMPILER_VERSION 20)
+set(CMAKE_CXX_STANDARD 20)
 
 # NDK Settings
 #add_compile_definitions(ANDROID_ABI=arm64-v8a)
diff --git a/src/ViPER4Android.cpp b/src/ViPER4Android.cpp
index 5140bf8..60c8380 100644
--- a/src/ViPER4Android.cpp
+++ b/src/ViPER4Android.cpp
@@ -3,6 +3,14 @@
 #include "essential.h"
 #include "viper/constants.h"
 #include "ViperContext.h"
+#include <aidl/android/hardware/audio/effect/Descriptor.h>
+#include <aidl/android/hardware/audio/effect/IEffect.h>
+#include <aidl/android/media/audio/common/AudioUuid.h>
+#include <android/binder_status.h>
+
+using aidl::android::hardware::audio::effect::Descriptor;
+using aidl::android::hardware::audio::effect::IEffect;
+using aidl::android::media::audio::common::AudioUuid;
 
 extern "C" {
 struct ViperHandle {
@@ -82,23 +90,30 @@ static int32_t viperLibraryGetDescriptor(const effect_uuid_t *uuid, effect_descr
 
 extern "C"
 __attribute__((visibility("default")))
-int createEffect() {
+binder_exception_t createEffect(const AudioUuid *audio_uuid, std::shared_ptr<IEffect> *instance) {
     VIPER_LOGD("createEffect called");
-    return -3;
+    return EX_ILLEGAL_ARGUMENT;
 }
 
 extern "C"
 __attribute__((visibility("default")))
-int destroyEffect() {
+binder_exception_t destroyEffect(const std::shared_ptr<IEffect> &instanceSp) {
     VIPER_LOGD("destroyEffect called");
-    return -5;
+    return EX_ILLEGAL_STATE;
 }
 
-extern "C"
-__attribute__((visibility("default")))
-int queryEffect() {
+//extern "C" binder_exception_t queryEffect(const AudioUuid* in_impl_uuid, Descriptor* _aidl_return) {
+//    if (!in_impl_uuid || *in_impl_uuid != getEffectImplUuidVisualizer()) {
+//        LOG(ERROR) << __func__ << "uuid not supported";
+//        return EX_ILLEGAL_ARGUMENT;
+//    }
+//    *_aidl_return = VisualizerImpl::kDescriptor;
+//    return EX_NONE;
+//}
+
+extern "C" binder_exception_t queryEffect(const AudioUuid *audio_uuid, Descriptor *descriptor) {
     VIPER_LOGD("queryEffect called");
-    return -3;
+    return EX_ILLEGAL_ARGUMENT;
 }
 
 extern "C"
diff --git a/src/include/aidl/android/hardware/audio/effect/Descriptor.h b/src/include/aidl/android/hardware/audio/effect/Descriptor.h
new file mode 100644
index 0000000..cb545a5
--- /dev/null
+++ b/src/include/aidl/android/hardware/audio/effect/Descriptor.h
@@ -0,0 +1,89 @@
+#pragma once
+
+#include <cstdint>
+#include <memory>
+#include <optional>
+#include <string>
+#include <vector>
+#include <aidl/android/hardware/audio/effect/Flags.h>
+#include <aidl/android/media/audio/common/AudioUuid.h>
+
+namespace aidl::android::hardware::audio::effect {
+    class Descriptor {
+    public:
+        class Identity {
+        public:
+            ::aidl::android::media::audio::common::AudioUuid type;
+            ::aidl::android::media::audio::common::AudioUuid uuid;
+            std::optional<::aidl::android::media::audio::common::AudioUuid> proxy;
+
+            inline bool operator==(const Identity& _rhs) const {
+                return std::tie(type, uuid, proxy) == std::tie(_rhs.type, _rhs.uuid, _rhs.proxy);
+            }
+            inline bool operator<(const Identity& _rhs) const {
+                return std::tie(type, uuid, proxy) < std::tie(_rhs.type, _rhs.uuid, _rhs.proxy);
+            }
+            inline bool operator!=(const Identity& _rhs) const {
+                return !(*this == _rhs);
+            }
+            inline bool operator>(const Identity& _rhs) const {
+                return _rhs < *this;
+            }
+            inline bool operator>=(const Identity& _rhs) const {
+                return !(*this < _rhs);
+            }
+            inline bool operator<=(const Identity& _rhs) const {
+                return !(_rhs < *this);
+            }
+        };
+        class Common {
+        public:
+            ::aidl::android::hardware::audio::effect::Descriptor::Identity id;
+            ::aidl::android::hardware::audio::effect::Flags flags;
+            int32_t cpuLoad = 0;
+            int32_t memoryUsage = 0;
+            std::string name;
+            std::string implementor;
+
+            inline bool operator==(const Common& _rhs) const {
+                return std::tie(id, flags, cpuLoad, memoryUsage, name, implementor) == std::tie(_rhs.id, _rhs.flags, _rhs.cpuLoad, _rhs.memoryUsage, _rhs.name, _rhs.implementor);
+            }
+            inline bool operator<(const Common& _rhs) const {
+                return std::tie(id, flags, cpuLoad, memoryUsage, name, implementor) < std::tie(_rhs.id, _rhs.flags, _rhs.cpuLoad, _rhs.memoryUsage, _rhs.name, _rhs.implementor);
+            }
+            inline bool operator!=(const Common& _rhs) const {
+                return !(*this == _rhs);
+            }
+            inline bool operator>(const Common& _rhs) const {
+                return _rhs < *this;
+            }
+            inline bool operator>=(const Common& _rhs) const {
+                return !(*this < _rhs);
+            }
+            inline bool operator<=(const Common& _rhs) const {
+                return !(_rhs < *this);
+            }
+        };
+        ::aidl::android::hardware::audio::effect::Descriptor::Common common;
+        /*::aidl::android::hardware::audio::effect::Capability capability;*/
+
+        inline bool operator==(const Descriptor& _rhs) const {
+            return std::tie(common/*, capability*/) == std::tie(_rhs.common/*, _rhs.capability*/);
+        }
+        inline bool operator<(const Descriptor& _rhs) const {
+            return std::tie(common/*, capability*/) < std::tie(_rhs.common/*, _rhs.capability*/);
+        }
+        inline bool operator!=(const Descriptor& _rhs) const {
+            return !(*this == _rhs);
+        }
+        inline bool operator>(const Descriptor& _rhs) const {
+            return _rhs < *this;
+        }
+        inline bool operator>=(const Descriptor& _rhs) const {
+            return !(*this < _rhs);
+        }
+        inline bool operator<=(const Descriptor& _rhs) const {
+            return !(_rhs < *this);
+        }
+    };
+} // namespace aidl::android::hardware::audio::effect
diff --git a/src/include/aidl/android/hardware/audio/effect/Flags.h b/src/include/aidl/android/hardware/audio/effect/Flags.h
new file mode 100644
index 0000000..ed863cd
--- /dev/null
+++ b/src/include/aidl/android/hardware/audio/effect/Flags.h
@@ -0,0 +1,72 @@
+#pragma once
+
+#include <array>
+#include <cstdint>
+#include <memory>
+#include <optional>
+#include <string>
+#include <vector>
+
+namespace aidl::android::hardware::audio::effect {
+    class Flags {
+    public:
+        enum class Type : int8_t {
+            INSERT = 0,
+            AUXILIARY = 1,
+            REPLACE = 2,
+            PRE_PROC = 3,
+            POST_PROC = 4,
+        };
+
+        enum class Insert : int8_t {
+            ANY = 0,
+            FIRST = 1,
+            LAST = 2,
+            EXCLUSIVE = 3,
+        };
+
+        enum class Volume : int8_t {
+            NONE = 0,
+            CTRL = 1,
+            IND = 2,
+            MONITOR = 3,
+        };
+
+        enum class HardwareAccelerator : int8_t {
+            NONE = 0,
+            SIMPLE = 1,
+            TUNNEL = 2,
+        };
+
+        ::aidl::android::hardware::audio::effect::Flags::Type type = ::aidl::android::hardware::audio::effect::Flags::Type::INSERT;
+        ::aidl::android::hardware::audio::effect::Flags::Insert insert = ::aidl::android::hardware::audio::effect::Flags::Insert::ANY;
+        ::aidl::android::hardware::audio::effect::Flags::Volume volume = ::aidl::android::hardware::audio::effect::Flags::Volume::NONE;
+        ::aidl::android::hardware::audio::effect::Flags::HardwareAccelerator hwAcceleratorMode = ::aidl::android::hardware::audio::effect::Flags::HardwareAccelerator::NONE;
+        bool offloadIndication = false;
+        bool deviceIndication = false;
+        bool audioModeIndication = false;
+        bool audioSourceIndication = false;
+        bool bypass = false;
+        bool sinkMetadataIndication = false;
+        bool sourceMetadataIndication = false;
+
+        inline bool operator==(const Flags& _rhs) const {
+            return std::tie(type, insert, volume, hwAcceleratorMode, offloadIndication, deviceIndication, audioModeIndication, audioSourceIndication, bypass, sinkMetadataIndication, sourceMetadataIndication) == std::tie(_rhs.type, _rhs.insert, _rhs.volume, _rhs.hwAcceleratorMode, _rhs.offloadIndication, _rhs.deviceIndication, _rhs.audioModeIndication, _rhs.audioSourceIndication, _rhs.bypass, _rhs.sinkMetadataIndication, _rhs.sourceMetadataIndication);
+        }
+        inline bool operator<(const Flags& _rhs) const {
+            return std::tie(type, insert, volume, hwAcceleratorMode, offloadIndication, deviceIndication, audioModeIndication, audioSourceIndication, bypass, sinkMetadataIndication, sourceMetadataIndication) < std::tie(_rhs.type, _rhs.insert, _rhs.volume, _rhs.hwAcceleratorMode, _rhs.offloadIndication, _rhs.deviceIndication, _rhs.audioModeIndication, _rhs.audioSourceIndication, _rhs.bypass, _rhs.sinkMetadataIndication, _rhs.sourceMetadataIndication);
+        }
+        inline bool operator!=(const Flags& _rhs) const {
+            return !(*this == _rhs);
+        }
+        inline bool operator>(const Flags& _rhs) const {
+            return _rhs < *this;
+        }
+        inline bool operator>=(const Flags& _rhs) const {
+            return !(*this < _rhs);
+        }
+        inline bool operator<=(const Flags& _rhs) const {
+            return !(_rhs < *this);
+        }
+    };
+} // namespace aidl::android::hardware::audio::effect
diff --git a/src/include/aidl/android/hardware/audio/effect/IEffect.h b/src/include/aidl/android/hardware/audio/effect/IEffect.h
new file mode 100644
index 0000000..5b8a7f6
--- /dev/null
+++ b/src/include/aidl/android/hardware/audio/effect/IEffect.h
@@ -0,0 +1,12 @@
+#pragma once
+
+#include <cstdint>
+#include <memory>
+#include <optional>
+#include <string>
+#include <vector>
+
+namespace aidl::android::hardware::audio::effect {
+    class IEffect {
+    };
+} // namespace aidl::android::hardware::audio::effect
diff --git a/src/include/aidl/android/media/audio/common/AudioUuid.h b/src/include/aidl/android/media/audio/common/AudioUuid.h
new file mode 100644
index 0000000..8f4f170
--- /dev/null
+++ b/src/include/aidl/android/media/audio/common/AudioUuid.h
@@ -0,0 +1,37 @@
+#pragma once
+
+#include <cstdint>
+#include <memory>
+#include <optional>
+#include <string>
+#include <vector>
+
+namespace aidl::android::media::audio::common {
+    class AudioUuid {
+    public:
+        int32_t timeLow = 0;
+        int32_t timeMid = 0;
+        int32_t timeHiAndVersion = 0;
+        int32_t clockSeq = 0;
+        std::vector<uint8_t> node;
+
+        inline bool operator==(const AudioUuid& _rhs) const {
+            return std::tie(timeLow, timeMid, timeHiAndVersion, clockSeq, node) == std::tie(_rhs.timeLow, _rhs.timeMid, _rhs.timeHiAndVersion, _rhs.clockSeq, _rhs.node);
+        }
+        inline bool operator<(const AudioUuid& _rhs) const {
+            return std::tie(timeLow, timeMid, timeHiAndVersion, clockSeq, node) < std::tie(_rhs.timeLow, _rhs.timeMid, _rhs.timeHiAndVersion, _rhs.clockSeq, _rhs.node);
+        }
+        inline bool operator!=(const AudioUuid& _rhs) const {
+            return !(*this == _rhs);
+        }
+        inline bool operator>(const AudioUuid& _rhs) const {
+            return _rhs < *this;
+        }
+        inline bool operator>=(const AudioUuid& _rhs) const {
+            return !(*this < _rhs);
+        }
+        inline bool operator<=(const AudioUuid& _rhs) const {
+            return !(_rhs < *this);
+        }
+    };
+} // namespace aidl::android::media::audio::common