1 /* 2 * Copyright 2022 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include <stdlib.h> 18 19 #include "common/OboeDebug.h" 20 #include "TestErrorCallback.h" 21 22 using namespace oboe; 23 open()24oboe::Result TestErrorCallback::open() { 25 mCallbackMagic = 0; 26 mDataCallback = std::make_shared<MyDataCallback>(); 27 mErrorCallback = std::make_shared<MyErrorCallback>(this); 28 AudioStreamBuilder builder; 29 oboe::Result result = builder.setSharingMode(oboe::SharingMode::Exclusive) 30 ->setPerformanceMode(oboe::PerformanceMode::LowLatency) 31 ->setFormat(oboe::AudioFormat::Float) 32 ->setChannelCount(kChannelCount) 33 #if 0 34 ->setDataCallback(mDataCallback.get()) 35 ->setErrorCallback(mErrorCallback.get()) // This can lead to a crash or FAIL. 36 #else 37 ->setDataCallback(mDataCallback) 38 ->setErrorCallback(mErrorCallback) // shared_ptr avoids a crash 39 #endif 40 ->openStream(mStream); 41 return result; 42 } 43 start()44oboe::Result TestErrorCallback::start() { 45 return mStream->requestStart(); 46 } 47 stop()48oboe::Result TestErrorCallback::stop() { 49 return mStream->requestStop(); 50 } 51 close()52oboe::Result TestErrorCallback::close() { 53 return mStream->close(); 54 } 55 test()56int TestErrorCallback::test() { 57 oboe::Result result = open(); 58 if (result != oboe::Result::OK) { 59 return (int) result; 60 } 61 return (int) start(); 62 } 63 onAudioReady(AudioStream * audioStream,void * audioData,int32_t numFrames)64DataCallbackResult TestErrorCallback::MyDataCallback::onAudioReady( 65 AudioStream *audioStream, 66 void *audioData, 67 int32_t numFrames) { 68 float *output = (float *) audioData; 69 // Fill buffer with random numbers to create "white noise". 70 int numSamples = numFrames * kChannelCount; 71 for (int i = 0; i < numSamples; i++) { 72 *output++ = (float)((drand48() - 0.5) * 0.2); 73 } 74 return oboe::DataCallbackResult::Continue; 75 } 76