| /* |
| * Copyright 2019 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 "FullDuplexAnalyzer.h" |
| |
| oboe::Result FullDuplexAnalyzer::start() { |
| getLoopbackProcessor()->setSampleRate(getOutputStream()->getSampleRate()); |
| getLoopbackProcessor()->onStartTest(); |
| return FullDuplexStream::start(); |
| } |
| |
| oboe::DataCallbackResult FullDuplexAnalyzer::onBothStreamsReady( |
| const void *inputData, |
| int numInputFrames, |
| void *outputData, |
| int numOutputFrames) { |
| |
| int32_t inputStride = getInputStream()->getChannelCount(); |
| int32_t outputStride = getOutputStream()->getChannelCount(); |
| float *inputFloat = (float *) inputData; |
| float *outputFloat = (float *) outputData; |
| |
| (void) getLoopbackProcessor()->process(inputFloat, inputStride, numInputFrames, |
| outputFloat, outputStride, numOutputFrames); |
| |
| // write the first channel of output and input to the stereo recorder |
| if (mRecording != nullptr) { |
| float buffer[2]; |
| int numBoth = std::min(numInputFrames, numOutputFrames); |
| for (int i = 0; i < numBoth; i++) { |
| buffer[0] = *outputFloat; |
| outputFloat += outputStride; |
| buffer[1] = *inputFloat; |
| inputFloat += inputStride; |
| mRecording->write(buffer, 1); |
| } |
| // Handle mismatch in in numFrames. |
| buffer[0] = 0.0f; // gap in output |
| for (int i = numBoth; i < numInputFrames; i++) { |
| buffer[1] = *inputFloat; |
| inputFloat += inputStride; |
| mRecording->write(buffer, 1); |
| } |
| buffer[1] = 0.0f; // gap in input |
| for (int i = numBoth; i < numOutputFrames; i++) { |
| buffer[0] = *outputFloat; |
| outputFloat += outputStride; |
| mRecording->write(buffer, 1); |
| } |
| } |
| return oboe::DataCallbackResult::Continue; |
| }; |