mirror of
https://github.com/Evolution-X/hardware_interfaces
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a4ab38caf0
Bug: 238913361 Test: atest VtsHalAudioEffectTargetTest atest VtsHalAudioEffectFactoryTargetTest atest VtsHalEqualizerTargetTest Change-Id: I94b2283ca2aa0e45715e1c9ac3ea6ad809ec2a2c
75 lines
2.8 KiB
C++
75 lines
2.8 KiB
C++
/*
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* Copyright (C) 2022 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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#pragma once
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#include <algorithm>
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#include <memory>
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#include <mutex>
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#include <string>
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#include "EffectContext.h"
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#include "EffectThread.h"
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namespace aidl::android::hardware::audio::effect {
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std::string toString(RetCode& code);
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class EffectWorker : public EffectThread {
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public:
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// set effect context for worker, suppose to only happen once here
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void setContext(std::shared_ptr<EffectContext> context) {
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std::call_once(mOnceFlag, [&]() { mContext = context; });
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};
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// handle FMQ and call effect implemented virtual function
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void process() override {
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if (!mContext) {
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LOG(ERROR) << __func__ << " invalid context!";
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return;
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}
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std::shared_ptr<EffectContext::StatusMQ> statusMQ = mContext->getStatusFmq();
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std::shared_ptr<EffectContext::DataMQ> inputMQ = mContext->getInputDataFmq();
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std::shared_ptr<EffectContext::DataMQ> outputMQ = mContext->getOutputDataFmq();
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// Only this worker will read from input data MQ and write to output data MQ.
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auto readSize = inputMQ->availableToRead(), writeSize = outputMQ->availableToWrite();
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if (readSize && writeSize) {
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LOG(DEBUG) << __func__ << " available to read " << readSize << " available to write "
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<< writeSize;
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auto buffer = mContext->getWorkBuffer();
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inputMQ->read(buffer, readSize);
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IEffect::Status status = effectProcessImpl();
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writeSize = std::min((int32_t)writeSize, status.fmqByteProduced);
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outputMQ->write(buffer, writeSize);
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statusMQ->writeBlocking(&status, 1);
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LOG(DEBUG) << __func__ << " done processing, effect consumed " << status.fmqByteConsumed
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<< " produced " << status.fmqByteProduced;
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} else {
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// TODO: maybe add some sleep here to avoid busy waiting
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}
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}
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// must implement by each effect implementation
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virtual IEffect::Status effectProcessImpl() = 0;
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private:
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// make sure the context only set once.
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std::once_flag mOnceFlag;
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std::shared_ptr<EffectContext> mContext;
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};
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} // namespace aidl::android::hardware::audio::effect
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