audio: import aidl hal
* hardware/interfaces/audio/aidl/default/ at android-16.0.0_r1.
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Konsta
270
audio/eraser/Eraser.cpp
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270
audio/eraser/Eraser.cpp
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/*
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* Copyright (C) 2024 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define LOG_TAG "AHAL_Eraser"
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#include "Eraser.h"
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#include <android-base/logging.h>
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#include <system/audio_effects/effect_uuid.h>
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#include <optional>
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using aidl::android::hardware::audio::common::getChannelCount;
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using aidl::android::hardware::audio::effect::Descriptor;
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using aidl::android::hardware::audio::effect::EraserSw;
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using aidl::android::hardware::audio::effect::getEffectImplUuidEraserSw;
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using aidl::android::hardware::audio::effect::getEffectTypeUuidEraser;
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using aidl::android::hardware::audio::effect::IEffect;
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using aidl::android::hardware::audio::effect::State;
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using aidl::android::media::audio::common::AudioChannelLayout;
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using aidl::android::media::audio::common::AudioUuid;
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extern "C" binder_exception_t createEffect(const AudioUuid* in_impl_uuid,
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std::shared_ptr<IEffect>* instanceSpp) {
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if (!in_impl_uuid || *in_impl_uuid != getEffectImplUuidEraserSw()) {
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LOG(ERROR) << __func__ << "uuid not supported";
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return EX_ILLEGAL_ARGUMENT;
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}
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if (!instanceSpp) {
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LOG(ERROR) << __func__ << " invalid input parameter!";
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return EX_ILLEGAL_ARGUMENT;
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}
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*instanceSpp = ndk::SharedRefBase::make<EraserSw>();
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LOG(DEBUG) << __func__ << " instance " << instanceSpp->get() << " created";
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return EX_NONE;
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}
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extern "C" binder_exception_t queryEffect(const AudioUuid* in_impl_uuid, Descriptor* _aidl_return) {
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if (!in_impl_uuid || *in_impl_uuid != getEffectImplUuidEraserSw()) {
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LOG(ERROR) << __func__ << "uuid not supported";
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return EX_ILLEGAL_ARGUMENT;
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}
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*_aidl_return = EraserSw::kDescriptor;
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return EX_NONE;
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}
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namespace aidl::android::hardware::audio::effect {
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const std::string EraserSw::kEffectName = "EraserSw";
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const Descriptor EraserSw::kDescriptor = {
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.common = {.id = {.type = getEffectTypeUuidEraser(), .uuid = getEffectImplUuidEraserSw()},
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.flags = {.type = Flags::Type::INSERT,
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.insert = Flags::Insert::FIRST,
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.hwAcceleratorMode = Flags::HardwareAccelerator::NONE},
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.name = EraserSw::kEffectName,
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.implementor = "The Android Open Source Project"}};
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ndk::ScopedAStatus EraserSw::getDescriptor(Descriptor* _aidl_return) {
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LOG(DEBUG) << __func__ << kDescriptor.toString();
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*_aidl_return = kDescriptor;
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return ndk::ScopedAStatus::ok();
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}
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ndk::ScopedAStatus EraserSw::setParameterSpecific(const Parameter::Specific& specific) {
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RETURN_IF(Parameter::Specific::eraser != specific.getTag(), EX_ILLEGAL_ARGUMENT,
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"EffectNotSupported");
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RETURN_IF(!mContext, EX_NULL_POINTER, "nullContext");
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auto& param = specific.get<Parameter::Specific::eraser>();
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return mContext->setParam(param.getTag(), param);
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}
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ndk::ScopedAStatus EraserSw::getParameterSpecific(const Parameter::Id& id,
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Parameter::Specific* specific) {
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RETURN_IF(!mContext, EX_NULL_POINTER, "nullContext");
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auto tag = id.getTag();
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RETURN_IF(Parameter::Id::eraserTag != tag, EX_ILLEGAL_ARGUMENT, "wrongIdTag");
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auto eraserId = id.get<Parameter::Id::eraserTag>();
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auto eraserTag = eraserId.getTag();
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switch (eraserTag) {
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case Eraser::Id::commonTag: {
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auto specificTag = eraserId.get<Eraser::Id::commonTag>();
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std::optional<Eraser> param = mContext->getParam(specificTag);
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if (!param.has_value()) {
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return ndk::ScopedAStatus::fromExceptionCodeWithMessage(EX_ILLEGAL_ARGUMENT,
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"EraserTagNotSupported");
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}
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specific->set<Parameter::Specific::eraser>(param.value());
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break;
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}
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default: {
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LOG(ERROR) << __func__ << " unsupported tag: " << toString(tag);
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return ndk::ScopedAStatus::fromExceptionCodeWithMessage(EX_ILLEGAL_ARGUMENT,
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"EraserTagNotSupported");
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}
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}
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return ndk::ScopedAStatus::ok();
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}
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std::shared_ptr<EffectContext> EraserSw::createContext(const Parameter::Common& common) {
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if (mContext) {
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LOG(DEBUG) << __func__ << " context already exist";
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} else {
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mContext = std::make_shared<EraserSwContext>(1 /* statusFmqDepth */, common);
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}
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return mContext;
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}
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RetCode EraserSw::releaseContext() {
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if (mContext) {
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mContext.reset();
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}
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return RetCode::SUCCESS;
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}
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EraserSw::~EraserSw() {
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cleanUp();
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LOG(DEBUG) << __func__;
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}
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ndk::ScopedAStatus EraserSw::command(CommandId command) {
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std::lock_guard lg(mImplMutex);
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RETURN_IF(mState == State::INIT, EX_ILLEGAL_STATE, "instanceNotOpen");
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switch (command) {
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case CommandId::START:
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RETURN_OK_IF(mState == State::PROCESSING);
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mState = State::PROCESSING;
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mContext->enable();
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startThread();
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RETURN_IF(notifyEventFlag(mDataMqNotEmptyEf) != RetCode::SUCCESS, EX_ILLEGAL_STATE,
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"notifyEventFlagNotEmptyFailed");
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break;
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case CommandId::STOP:
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RETURN_OK_IF(mState == State::IDLE || mState == State::DRAINING);
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if (mVersion < kDrainSupportedVersion) {
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mState = State::IDLE;
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stopThread();
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mContext->disable();
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} else {
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mState = State::DRAINING;
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startDraining();
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mContext->startDraining();
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}
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RETURN_IF(notifyEventFlag(mDataMqNotEmptyEf) != RetCode::SUCCESS, EX_ILLEGAL_STATE,
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"notifyEventFlagNotEmptyFailed");
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break;
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case CommandId::RESET:
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mState = State::IDLE;
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RETURN_IF(notifyEventFlag(mDataMqNotEmptyEf) != RetCode::SUCCESS, EX_ILLEGAL_STATE,
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"notifyEventFlagNotEmptyFailed");
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stopThread();
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mImplContext->disable();
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mImplContext->reset();
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mImplContext->resetBuffer();
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break;
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default:
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LOG(ERROR) << getEffectNameWithVersion() << __func__ << " instance still processing";
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return ndk::ScopedAStatus::fromExceptionCodeWithMessage(EX_ILLEGAL_ARGUMENT,
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"CommandIdNotSupported");
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}
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LOG(VERBOSE) << getEffectNameWithVersion() << __func__
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<< " transfer to state: " << toString(mState);
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return ndk::ScopedAStatus::ok();
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}
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// Processing method running in EffectWorker thread.
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IEffect::Status EraserSw::effectProcessImpl(float* in, float* out, int samples) {
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RETURN_VALUE_IF(!mContext, (IEffect::Status{EX_NULL_POINTER, 0, 0}), "nullContext");
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IEffect::Status procStatus{STATUS_NOT_ENOUGH_DATA, 0, 0};
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procStatus = mContext->process(in, out, samples);
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if (mState == State::DRAINING && procStatus.status == STATUS_NOT_ENOUGH_DATA) {
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drainingComplete_l();
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}
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return procStatus;
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}
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void EraserSw::drainingComplete_l() {
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if (mState != State::DRAINING) return;
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LOG(DEBUG) << getEffectNameWithVersion() << __func__;
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finishDraining();
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mState = State::IDLE;
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}
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EraserSwContext::EraserSwContext(int statusDepth, const Parameter::Common& common)
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: EffectContext(statusDepth, common) {
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LOG(DEBUG) << __func__;
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}
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EraserSwContext::~EraserSwContext() {
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LOG(DEBUG) << __func__;
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}
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template <typename TAG>
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std::optional<Eraser> EraserSwContext::getParam(TAG tag) {
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if (mParamsMap.find(tag) != mParamsMap.end()) {
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return mParamsMap.at(tag);
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}
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return std::nullopt;
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}
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template <typename TAG>
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ndk::ScopedAStatus EraserSwContext::setParam(TAG tag, Eraser eraser) {
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mParamsMap[tag] = eraser;
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return ndk::ScopedAStatus::ok();
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}
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IEffect::Status EraserSwContext::process(float* in, float* out, int samples) {
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LOG(DEBUG) << __func__ << " in " << in << " out " << out << " samples " << samples;
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IEffect::Status procStatus = {EX_ILLEGAL_ARGUMENT, 0, 0};
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const auto inputChannelCount = getChannelCount(mCommon.input.base.channelMask);
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const auto outputChannelCount = getChannelCount(mCommon.output.base.channelMask);
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if (inputChannelCount < outputChannelCount) {
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LOG(ERROR) << __func__ << " invalid channel count, in: " << inputChannelCount
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<< " out: " << outputChannelCount;
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return procStatus;
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}
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if (samples <= 0 || 0 != samples % inputChannelCount) {
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LOG(ERROR) << __func__ << " invalid samples: " << samples;
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return procStatus;
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}
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const int iFrames = samples / inputChannelCount;
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const float gainPerSample = 1.f / iFrames;
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for (int i = 0; i < iFrames; i++) {
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if (isDraining()) {
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const float gain = (iFrames - i - 1) * gainPerSample;
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for (size_t c = 0; c < outputChannelCount; c++) {
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out[c] = in[c] * gain;
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}
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} else {
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std::memcpy(out, in, outputChannelCount * sizeof(float));
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}
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in += inputChannelCount;
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out += outputChannelCount;
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}
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// drain for one cycle
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if (isDraining()) {
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procStatus.status = STATUS_NOT_ENOUGH_DATA;
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finishDraining();
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} else {
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procStatus.status = STATUS_OK;
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}
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procStatus.fmqConsumed = static_cast<int32_t>(iFrames * inputChannelCount);
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procStatus.fmqProduced = static_cast<int32_t>(iFrames * outputChannelCount);
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return procStatus;
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}
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} // namespace aidl::android::hardware::audio::effect
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