Home | History | Annotate | Download | only in nbaio
      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, int64_t readPTS);
     51 
     52     // NBAIO_Source end
     53 
     54 #if 0   // until necessary
     55     MonoPipe* pipe() const { return mPipe; }
     56 #endif
     57 
     58 private:
     59     MonoPipe * const mPipe;
     60 };
     61 
     62 }   // namespace android
     63 
     64 #endif  // ANDROID_AUDIO_MONO_PIPE_READER_H
     65