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Google Oboe Audio Recorder
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// | |
// Created by Reuniware on 29/06/2020. | |
// | |
#include <jni.h> | |
#include <string> | |
#include <oboe/Oboe.h> | |
#include "OboeAudioRecorder.h" | |
#include "oboe/samples/debug-utils/logging_macros.h" | |
class OboeAudioRecorder: public oboe::AudioStreamCallback { | |
public: | |
bool isRecording = true; | |
explicit OboeAudioRecorder() { | |
oboe::AudioStreamBuilder builder; | |
builder.setDirection(oboe::Direction::Input); | |
builder.setPerformanceMode(oboe::PerformanceMode::LowLatency); | |
builder.setFormat(oboe::AudioFormat::Float); | |
builder.setChannelCount(oboe::ChannelCount::Mono); | |
builder.setInputPreset(oboe::InputPreset::Unprocessed); | |
builder.setSharingMode(oboe::SharingMode::Shared); | |
builder.setSampleRate(48000); | |
builder.setAudioApi(oboe::AudioApi::OpenSLES); | |
//builder.setCallback(this); | |
oboe::Result r = builder.openStream(&stream); | |
if (r != oboe::Result::OK) { | |
return; | |
} | |
r = stream->requestStart(); | |
if (r != oboe::Result::OK) { | |
return; | |
} | |
auto a = stream->getState(); | |
if (a == oboe::StreamState::Started) { | |
constexpr int kMillisecondsToRecord = 2; | |
const int32_t requestedFrames = (int32_t) (kMillisecondsToRecord * (stream->getSampleRate() / oboe::kMillisPerSecond)); | |
__android_log_print(ANDROID_LOG_INFO, "OboeAudioRecorder", "requestedFrames = %d", requestedFrames); | |
float_t mybuffer[requestedFrames]; | |
constexpr int64_t kTimeoutValue = 3 * oboe::kNanosPerMillisecond; | |
int framesRead = 0; | |
do { | |
auto result = stream->read(mybuffer, requestedFrames, 0); | |
if (result != oboe::Result::OK) { | |
break; | |
} | |
framesRead = result.value(); | |
__android_log_print(ANDROID_LOG_INFO, "OboeAudioRecorder", "framesRead = %d", framesRead); | |
if (framesRead > 0) { | |
break; | |
} | |
} while (framesRead != 0); | |
while (isRecording) { | |
auto result = stream->read(mybuffer, requestedFrames, kTimeoutValue * 1000); | |
if (result == oboe::Result::OK) { | |
auto nbFramesRead = result.value(); | |
__android_log_print(ANDROID_LOG_INFO, "OboeAudioRecorder", "nbFramesRead = %d", nbFramesRead); | |
for (int i=0; i<nbFramesRead; i++) { | |
__android_log_print(ANDROID_LOG_INFO, "OboeAudioRecorder", "nbFramesRead[%d] = %f", i, mybuffer[i]); | |
} | |
} else { | |
auto error = convertToText(result.error()); | |
__android_log_print(ANDROID_LOG_INFO, "OboeAudioRecorder", "error = %s", error); | |
} | |
} | |
stream->requestStop(); | |
stream->close(); | |
} | |
} | |
oboe::DataCallbackResult onAudioReady(oboe::AudioStream *oboeStream, void *audioData, int32_t numFrames) override { | |
LOGE("onAudioReady"); | |
} | |
private: | |
oboe::ManagedStream outStream; | |
oboe::AudioStream *stream; | |
}; |
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