1 /* 2 * Copyright (C) 2012 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 ANDROID_AUDIO_MONO_PIPE_READER_H 18 #define ANDROID_AUDIO_MONO_PIPE_READER_H 19 20 #include "MonoPipe.h" 21 22 namespace android { 23 24 // MonoPipeReader is safe for only a single reader thread 25 class MonoPipeReader : public NBAIO_Source { 26 27 public: 28 29 // Construct a MonoPipeReader and associate it with a MonoPipe; 30 // any data already in the pipe is visible to this PipeReader. 31 // There can be only a single MonoPipeReader per MonoPipe. 32 // FIXME make this constructor a factory method of MonoPipe. 33 MonoPipeReader(MonoPipe* pipe); 34 virtual ~MonoPipeReader(); 35 36 // NBAIO_Port interface 37 38 //virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers, 39 // NBAIO_Format counterOffers[], size_t& numCounterOffers); 40 //virtual NBAIO_Format format() const; 41 42 // NBAIO_Source interface 43 44 //virtual size_t framesRead() const; 45 //virtual size_t framesOverrun(); 46 //virtual size_t overruns(); 47 48 virtual ssize_t availableToRead(); 49 50 virtual ssize_t read(void *buffer, size_t count); 51 52 virtual void onTimestamp(const ExtendedTimestamp ×tamp); 53 54 // NBAIO_Source end 55 56 #if 0 // until necessary 57 MonoPipe* pipe() const { return mPipe; } 58 #endif 59 60 private: 61 MonoPipe * const mPipe; 62 }; 63 64 } // namespace android 65 66 #endif // ANDROID_AUDIO_MONO_PIPE_READER_H 67