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55 lines
2.0 KiB
55 lines
2.0 KiB
/*
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* Copyright 2015 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 "common/OboeDebug.h"
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#include "InputStreamCallbackAnalyzer.h"
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double InputStreamCallbackAnalyzer::getPeakLevel(int index) {
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if (mPeakDetectors == nullptr) {
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LOGE("%s() called before setup()", __func__);
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return -1.0;
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} else if (index < 0 || index >= mNumChannels) {
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LOGE("%s(), index out of range, 0 <= %d < %d", __func__, index, mNumChannels);
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return -2.0;
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}
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return mPeakDetectors[index].getLevel();
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}
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oboe::DataCallbackResult InputStreamCallbackAnalyzer::onAudioReady(
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oboe::AudioStream *audioStream,
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void *audioData,
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int numFrames) {
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int32_t channelCount = audioStream->getChannelCount();
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maybeHang(getNanoseconds());
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printScheduler();
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mInputConverter->convertToInternalOutput(numFrames * channelCount, audioData);
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float *floatData = (float *) mInputConverter->getOutputBuffer();
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if (mRecording != nullptr) {
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mRecording->write(floatData, numFrames);
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}
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int32_t sampleIndex = 0;
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for (int iFrame = 0; iFrame < numFrames; iFrame++) {
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for (int iChannel = 0; iChannel < channelCount; iChannel++) {
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float sample = floatData[sampleIndex++];
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mPeakDetectors[iChannel].process(sample);
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}
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}
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audioStream->waitForAvailableFrames(mMinimumFramesBeforeRead, oboe::kNanosPerSecond);
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return oboe::DataCallbackResult::Continue;
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}
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