1 /* 2 * Copyright (C) 2012 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not 5 * use this file except in compliance with the License. You may obtain a copy of 6 * 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, WITHOUT 12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 13 * License for the specific language governing permissions and limitations under 14 * the License. 15 */ 16 17 18 #ifndef CTSAUDIO_AUDIORECORDINGLOCAL_H 19 #define CTSAUDIO_AUDIORECORDINGLOCAL_H 20 21 #include <utils/String8.h> 22 23 #include <tinyalsa/asoundlib.h> 24 25 #include "AudioLocal.h" 26 27 28 class AudioRecordingLocal: public AudioLocal { 29 public: 30 explicit AudioRecordingLocal(int hwId); 31 virtual ~AudioRecordingLocal(); 32 protected: 33 bool doPrepare(AudioHardware::SamplingRate, int samplesInOneGo); 34 bool doPlaybackOrRecord(android::sp<Buffer>& buffer); 35 void doStop(); 36 void releaseHw(); 37 38 private: 39 int mHwId; 40 struct pcm* mPcmHandle; 41 // unit recording samples 42 int mSamples; 43 // unit recording sizes 44 int mSizes; 45 // alsa buffer size 46 int mBufferSize; 47 }; 48 49 50 #endif // CTSAUDIO_AUDIORECORDINGLOCAL_H 51