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/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ANDROID_AUDIO_PIPE_READER_H
#define ANDROID_AUDIO_PIPE_READER_H
#include "Pipe.h"
namespace android {
// PipeReader is safe for only a single thread
class PipeReader : public NBAIO_Source {
public:
// Construct a PipeReader and associate it with a Pipe
// FIXME make this constructor a factory method of Pipe.
PipeReader(Pipe& pipe);
virtual ~PipeReader();
// NBAIO_Port interface
//virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers,
// NBAIO_Format counterOffers[], size_t& numCounterOffers);
//virtual NBAIO_Format format() const;
// NBAIO_Source interface
//virtual size_t framesRead() const;
virtual size_t framesOverrun() { return mFramesOverrun; }
virtual size_t overruns() { return mOverruns; }
virtual ssize_t availableToRead();
virtual ssize_t read(void *buffer, size_t count, int64_t readPTS);
// NBAIO_Source end
#if 0 // until necessary
Pipe& pipe() const { return mPipe; }
#endif
private:
Pipe& mPipe;
int32_t mFront; // follows behind mPipe.mRear
size_t mFramesOverrun;
size_t mOverruns;
};
} // namespace android
#endif // ANDROID_AUDIO_PIPE_READER_H
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