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/*
* Copyright 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "common/OboeDebug.h"
#include "InputStreamCallbackAnalyzer.h"
oboe::DataCallbackResult InputStreamCallbackAnalyzer::onAudioReady(
oboe::AudioStream *audioStream,
void *audioData,
int numFrames) {
int32_t channelCount = audioStream->getChannelCount();
if (audioStream->getFormat() == oboe::AudioFormat::I16) {
int16_t *shortData = (int16_t *) audioData;
if (mRecording != nullptr) {
mRecording->write(shortData, numFrames);
}
int16_t *frameData = shortData;
for (int iFrame = 0; iFrame < numFrames; iFrame++) {
for (int iChannel = 0; iChannel < channelCount; iChannel++) {
float sample = frameData[iChannel] / 32768.0f;
mPeakDetectors[iChannel].process(sample);
}
frameData += channelCount;
}
} else if (audioStream->getFormat() == oboe::AudioFormat::Float) {
float *floatData = (float *) audioData;
if (mRecording != nullptr) {
mRecording->write(floatData, numFrames);
}
float *frameData = floatData;
for (int iFrame = 0; iFrame < numFrames; iFrame++) {
for (int iChannel = 0; iChannel < channelCount; iChannel++) {
float sample = frameData[iChannel];
mPeakDetectors[iChannel].process(sample);
}
frameData += channelCount;
}
}
audioStream->waitForAvailableFrames(mMinimumFramesBeforeRead, oboe::kNanosPerSecond);
return oboe::DataCallbackResult::Continue;
}
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