audio: Add example HAL implementation
This is partial implementation of the example V7.0 audio HAL
which passes VTS tests. Note that the 'core' part
of the HAL (IDevice/IStream) isn't implemented yet.
It passes VTS because it doesn't provide any devices
(modules) and the audio HAL isn't the 'default' instance.
Bug: 142480271
Test: atest VtsHalAudioV7_0TargetTest
atest VtsHalAudioEffectV7_0TargetTest
Change-Id: Ie3dd62c5db1cdb5534df4dd7f326c4c8776bf3c4
diff --git a/audio/common/7.0/example/EqualizerEffect.h b/audio/common/7.0/example/EqualizerEffect.h
new file mode 100644
index 0000000..11853c3
--- /dev/null
+++ b/audio/common/7.0/example/EqualizerEffect.h
@@ -0,0 +1,163 @@
+/*
+ * Copyright (C) 2020 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 <android/hardware/audio/effect/7.0/IEqualizerEffect.h>
+
+#include "Effect.h"
+
+namespace android::hardware::audio::effect::V7_0::implementation {
+
+class EqualizerEffect : public IEqualizerEffect {
+ public:
+ static const EffectDescriptor& getDescriptor();
+
+ EqualizerEffect();
+
+ // Methods from IEffect interface.
+ ::android::hardware::Return<Result> init() override { return mEffect->init(); }
+ ::android::hardware::Return<Result> setConfig(
+ const EffectConfig& config,
+ const ::android::sp<IEffectBufferProviderCallback>& inputBufferProvider,
+ const ::android::sp<IEffectBufferProviderCallback>& outputBufferProvider) override {
+ return mEffect->setConfig(config, inputBufferProvider, outputBufferProvider);
+ }
+ ::android::hardware::Return<Result> reset() override { return mEffect->reset(); }
+ ::android::hardware::Return<Result> enable() override { return mEffect->enable(); }
+ ::android::hardware::Return<Result> disable() override { return mEffect->disable(); }
+ ::android::hardware::Return<Result> setDevice(
+ const ::android::hardware::audio::common::V7_0::DeviceAddress& device) override {
+ return mEffect->setDevice(device);
+ }
+ ::android::hardware::Return<void> setAndGetVolume(
+ const ::android::hardware::hidl_vec<uint32_t>& volumes,
+ setAndGetVolume_cb _hidl_cb) override {
+ return mEffect->setAndGetVolume(volumes, _hidl_cb);
+ }
+ ::android::hardware::Return<Result> volumeChangeNotification(
+ const ::android::hardware::hidl_vec<uint32_t>& volumes) override {
+ return mEffect->volumeChangeNotification(volumes);
+ }
+ ::android::hardware::Return<Result> setAudioMode(
+ ::android::hardware::audio::common::V7_0::AudioMode mode) override {
+ return mEffect->setAudioMode(mode);
+ }
+ ::android::hardware::Return<Result> setConfigReverse(
+ const EffectConfig& config,
+ const ::android::sp<IEffectBufferProviderCallback>& inputBufferProvider,
+ const ::android::sp<IEffectBufferProviderCallback>& outputBufferProvider) override {
+ return mEffect->setConfigReverse(config, inputBufferProvider, outputBufferProvider);
+ }
+ ::android::hardware::Return<Result> setInputDevice(
+ const ::android::hardware::audio::common::V7_0::DeviceAddress& device) override {
+ return mEffect->setInputDevice(device);
+ }
+ ::android::hardware::Return<void> getConfig(getConfig_cb _hidl_cb) override {
+ return mEffect->getConfig(_hidl_cb);
+ }
+ ::android::hardware::Return<void> getConfigReverse(getConfigReverse_cb _hidl_cb) override {
+ return mEffect->getConfigReverse(_hidl_cb);
+ }
+ ::android::hardware::Return<void> getSupportedAuxChannelsConfigs(
+ uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) override {
+ return mEffect->getSupportedAuxChannelsConfigs(maxConfigs, _hidl_cb);
+ }
+ ::android::hardware::Return<void> getAuxChannelsConfig(
+ getAuxChannelsConfig_cb _hidl_cb) override {
+ return mEffect->getAuxChannelsConfig(_hidl_cb);
+ }
+ ::android::hardware::Return<Result> setAuxChannelsConfig(
+ const EffectAuxChannelsConfig& config) override {
+ return mEffect->setAuxChannelsConfig(config);
+ }
+ ::android::hardware::Return<Result> setAudioSource(
+ const ::android::hardware::hidl_string& source) override {
+ return mEffect->setAudioSource(source);
+ }
+ ::android::hardware::Return<Result> offload(const EffectOffloadParameter& param) override {
+ return mEffect->offload(param);
+ }
+ ::android::hardware::Return<void> getDescriptor(getDescriptor_cb _hidl_cb) override {
+ return mEffect->getDescriptor(_hidl_cb);
+ }
+ ::android::hardware::Return<void> prepareForProcessing(
+ prepareForProcessing_cb _hidl_cb) override {
+ return mEffect->prepareForProcessing(_hidl_cb);
+ }
+ ::android::hardware::Return<Result> setProcessBuffers(const AudioBuffer& inBuffer,
+ const AudioBuffer& outBuffer) override {
+ return mEffect->setProcessBuffers(inBuffer, outBuffer);
+ }
+ ::android::hardware::Return<void> command(uint32_t commandId,
+ const ::android::hardware::hidl_vec<uint8_t>& data,
+ uint32_t resultMaxSize,
+ command_cb _hidl_cb) override {
+ return mEffect->command(commandId, data, resultMaxSize, _hidl_cb);
+ }
+ ::android::hardware::Return<Result> setParameter(
+ const ::android::hardware::hidl_vec<uint8_t>& parameter,
+ const ::android::hardware::hidl_vec<uint8_t>& value) override {
+ return mEffect->setParameter(parameter, value);
+ }
+ ::android::hardware::Return<void> getParameter(
+ const ::android::hardware::hidl_vec<uint8_t>& parameter, uint32_t valueMaxSize,
+ getParameter_cb _hidl_cb) override {
+ return mEffect->getParameter(parameter, valueMaxSize, _hidl_cb);
+ }
+ ::android::hardware::Return<void> getSupportedConfigsForFeature(
+ uint32_t featureId, uint32_t maxConfigs, uint32_t configSize,
+ getSupportedConfigsForFeature_cb _hidl_cb) override {
+ return mEffect->getSupportedConfigsForFeature(featureId, maxConfigs, configSize, _hidl_cb);
+ }
+ ::android::hardware::Return<void> getCurrentConfigForFeature(
+ uint32_t featureId, uint32_t configSize,
+ getCurrentConfigForFeature_cb _hidl_cb) override {
+ return mEffect->getCurrentConfigForFeature(featureId, configSize, _hidl_cb);
+ }
+ ::android::hardware::Return<Result> setCurrentConfigForFeature(
+ uint32_t featureId, const ::android::hardware::hidl_vec<uint8_t>& configData) override {
+ return mEffect->setCurrentConfigForFeature(featureId, configData);
+ }
+ ::android::hardware::Return<Result> close() override { return mEffect->close(); }
+
+ // Methods from IEqualizerEffect interface.
+ ::android::hardware::Return<void> getNumBands(getNumBands_cb _hidl_cb) override;
+ ::android::hardware::Return<void> getLevelRange(getLevelRange_cb _hidl_cb) override;
+ ::android::hardware::Return<Result> setBandLevel(uint16_t band, int16_t level) override;
+ ::android::hardware::Return<void> getBandLevel(uint16_t band,
+ getBandLevel_cb _hidl_cb) override;
+ ::android::hardware::Return<void> getBandCenterFrequency(
+ uint16_t band, getBandCenterFrequency_cb _hidl_cb) override;
+ ::android::hardware::Return<void> getBandFrequencyRange(
+ uint16_t band, getBandFrequencyRange_cb _hidl_cb) override;
+ ::android::hardware::Return<void> getBandForFrequency(uint32_t freq,
+ getBandForFrequency_cb _hidl_cb) override;
+ ::android::hardware::Return<void> getPresetNames(getPresetNames_cb _hidl_cb) override;
+ ::android::hardware::Return<Result> setCurrentPreset(uint16_t preset) override;
+ ::android::hardware::Return<void> getCurrentPreset(getCurrentPreset_cb _hidl_cb) override;
+ ::android::hardware::Return<Result> setAllProperties(
+ const IEqualizerEffect::AllProperties& properties) override;
+ ::android::hardware::Return<void> getAllProperties(getAllProperties_cb _hidl_cb) override;
+
+ private:
+ static constexpr size_t kNumBands = 1;
+ static constexpr size_t kNumPresets = 1;
+ sp<Effect> mEffect;
+ IEqualizerEffect::AllProperties mProperties{};
+};
+
+} // namespace android::hardware::audio::effect::V7_0::implementation