1010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten/* 2010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten * Copyright (C) 2012 The Android Open Source Project 3010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten * 4010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten * Licensed under the Apache License, Version 2.0 (the "License"); 5010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten * you may not use this file except in compliance with the License. 6010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten * You may obtain a copy of the License at 7010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten * 8010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten * http://www.apache.org/licenses/LICENSE-2.0 9010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten * 10010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten * Unless required by applicable law or agreed to in writing, software 11010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten * distributed under the License is distributed on an "AS IS" BASIS, 12010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten * See the License for the specific language governing permissions and 14010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten * limitations under the License. 15010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten */ 16010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten 17010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten#ifndef ANDROID_AUDIO_MONO_PIPE_READER_H 18010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten#define ANDROID_AUDIO_MONO_PIPE_READER_H 19010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten 20010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten#include "MonoPipe.h" 21010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten 22010662326b9c43c703725f933e95e0897f8a6bddGlenn Kastennamespace android { 23010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten 24010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten// MonoPipeReader is safe for only a single reader thread 25010662326b9c43c703725f933e95e0897f8a6bddGlenn Kastenclass MonoPipeReader : public NBAIO_Source { 26010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten 27010662326b9c43c703725f933e95e0897f8a6bddGlenn Kastenpublic: 28010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten 29010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten // Construct a MonoPipeReader and associate it with a MonoPipe; 30010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten // any data already in the pipe is visible to this PipeReader. 31010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten // There can be only a single MonoPipeReader per MonoPipe. 32010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten // FIXME make this constructor a factory method of MonoPipe. 33010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten MonoPipeReader(MonoPipe* pipe); 34010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten virtual ~MonoPipeReader(); 35010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten 36010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten // NBAIO_Port interface 37010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten 38010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten //virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers, 39010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten // NBAIO_Format counterOffers[], size_t& numCounterOffers); 40010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten //virtual NBAIO_Format format() const; 41010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten 42010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten // NBAIO_Source interface 43010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten 44010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten //virtual size_t framesRead() const; 45010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten //virtual size_t framesOverrun(); 46010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten //virtual size_t overruns(); 47010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten 48010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten virtual ssize_t availableToRead(); 49010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten 502c3b2da3049627264b7c6b449a1622f002210f03John Grossman virtual ssize_t read(void *buffer, size_t count, int64_t readPTS); 51010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten 52010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten // NBAIO_Source end 53010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten 54010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten#if 0 // until necessary 55010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten MonoPipe* pipe() const { return mPipe; } 56010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten#endif 57010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten 58010662326b9c43c703725f933e95e0897f8a6bddGlenn Kastenprivate: 59010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten MonoPipe * const mPipe; 60010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten}; 61010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten 62010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten} // namespace android 63010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten 64010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten#endif // ANDROID_AUDIO_MONO_PIPE_READER_H 65