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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.
*/
// Implementation of NBAIO_Source that wraps an AudioBufferProvider
#ifndef ANDROID_AUDIO_BUFFER_PROVIDER_SOURCE_H
#define ANDROID_AUDIO_BUFFER_PROVIDER_SOURCE_H
#include "NBAIO.h"
#include <media/AudioBufferProvider.h>
namespace android {
class AudioBufferProviderSource : public NBAIO_Source {
public:
AudioBufferProviderSource(AudioBufferProvider *provider, const NBAIO_Format& format);
virtual ~AudioBufferProviderSource();
// NBAIO_Port interface
//virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers,
// NBAIO_Format counterOffers[], size_t& numCounterOffers);
//virtual NBAIO_Format format();
// NBAIO_Source interface
//virtual size_t framesRead() const;
//virtual size_t framesOverrun();
//virtual size_t overruns();
virtual ssize_t availableToRead();
virtual ssize_t read(void *buffer, size_t count, int64_t readPTS);
virtual ssize_t readVia(readVia_t via, size_t total, void *user,
int64_t readPTS, size_t block);
private:
AudioBufferProvider * const mProvider;
AudioBufferProvider::Buffer mBuffer; // current buffer
size_t mConsumed; // number of frames consumed so far from current buffer
};
} // namespace android
#endif // ANDROID_AUDIO_BUFFER_PROVIDER_SOURCE_H
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