1 /* 2 * Copyright (C) 2024 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 #ifndef __WAVFILECAPTURE_H__ 18 #define __WAVFILECAPTURE_H__ 19 20 #include <string> 21 22 class WaveFileWriter; 23 class WavCaptureOutputStream; 24 25 class WavFileCapture { 26 public: 27 WavFileCapture(); 28 ~WavFileCapture(); 29 30 void setCaptureFile(const char* wavFilePath); 31 void setWavSpec(int numChannels, int sampleRate); 32 33 void startCapture(); 34 35 /* 36 * completeCapture() status codes. 37 * Note: These need to be kept in sync with the equivalent constants 38 * in WavFileCapture.java. 39 */ 40 static const int CAPTURE_NOTDONE = 1; 41 static const int CAPTURE_SUCCESS = 0; 42 static const int CAPTURE_BADOPEN = -1; 43 static const int CAPTURE_BADWRITE = -2; 44 int completeCapture(); 45 void abandonCaptureData(); 46 47 void captureData(void *audioData, int32_t numFrames); 48 49 private: 50 std::string mWavCapturePath; 51 52 int mNumChannels; 53 int mSampleRate; 54 55 bool mCaptureActive; 56 57 WaveFileWriter* mWavFileWriter; 58 WavCaptureOutputStream* mOutputStream; 59 }; 60 61 #endif // __WAVFILECAPTURE_H__ 62 63