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97 lines
3.0 KiB
97 lines
3.0 KiB
/*
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* Copyright 2023 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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#include <stdlib.h>
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#include <aaudio/AAudioExtensions.h>
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#include "common/OboeDebug.h"
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#include "oboe/AudioClock.h"
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#include "TestRapidCycle.h"
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using namespace oboe;
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// start a thread to cycle through stream tests
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int32_t TestRapidCycle::start(bool useOpenSL) {
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mThreadEnabled = true;
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mCycleCount = 0;
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mCycleThread = std::thread([this, useOpenSL]() {
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cycleRapidly(useOpenSL);
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});
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return 0;
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}
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int32_t TestRapidCycle::stop() {
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mThreadEnabled = false;
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mCycleThread.join();
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return 0;
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}
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void TestRapidCycle::cycleRapidly(bool useOpenSL) {
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while(mThreadEnabled && (oneCycle(useOpenSL) == 0));
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}
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int32_t TestRapidCycle::oneCycle(bool useOpenSL) {
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mCycleCount++;
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mDataCallback = std::make_shared<MyDataCallback>();
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AudioStreamBuilder builder;
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oboe::Result result = builder.setFormat(oboe::AudioFormat::Float)
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->setAudioApi(useOpenSL ? oboe::AudioApi::OpenSLES : oboe::AudioApi::AAudio)
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->setPerformanceMode(oboe::PerformanceMode::LowLatency)
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->setChannelCount(kChannelCount)
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->setDataCallback(mDataCallback)
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->setUsage(oboe::Usage::Notification)
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->openStream(mStream);
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if (result != oboe::Result::OK) {
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return (int32_t) result;
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}
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mStream->setDelayBeforeCloseMillis(0);
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result = mStream->requestStart();
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if (result != oboe::Result::OK) {
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mStream->close();
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return (int32_t) result;
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}
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// Sleep for some random time.
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int32_t durationMicros = (int32_t)(drand48() * kMaxSleepMicros);
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LOGD("TestRapidCycle::oneCycle() - Sleep for %d micros", durationMicros);
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usleep(durationMicros);
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LOGD("TestRapidCycle::oneCycle() - Woke up, close stream");
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mDataCallback->returnStop = true;
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result = mStream->close();
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return (int32_t) result;
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}
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// Callback that sleeps then touches the audio buffer.
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DataCallbackResult TestRapidCycle::MyDataCallback::onAudioReady(
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AudioStream *audioStream,
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void *audioData,
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int32_t numFrames) {
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float *floatData = (float *) audioData;
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const int numSamples = numFrames * kChannelCount;
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// Fill buffer with white noise.
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for (int i = 0; i < numSamples; i++) {
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floatData[i] = ((float) drand48() - 0.5f) * 2 * 0.1f;
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}
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usleep(500); // half a millisecond
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if (returnStop) {
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usleep(20 * 1000);
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return DataCallbackResult::Stop;
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} else {
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return DataCallbackResult::Continue;
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}
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}
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