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// Implementation of AudioBufferProvider that wraps an NBAIO_Source 18010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten 19010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten#ifndef ANDROID_SOURCE_AUDIO_BUFFER_PROVIDER_H 20010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten#define ANDROID_SOURCE_AUDIO_BUFFER_PROVIDER_H 21010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten 22010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten#include "NBAIO.h" 232dd4bdd715f586d4d30cf90cc6fc2bbfbce60fe0Glenn Kasten#include <media/ExtendedAudioBufferProvider.h> 24010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten 25010662326b9c43c703725f933e95e0897f8a6bddGlenn Kastennamespace android { 26010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten 27288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kastenclass SourceAudioBufferProvider : public ExtendedAudioBufferProvider { 28010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten 29010662326b9c43c703725f933e95e0897f8a6bddGlenn Kastenpublic: 30010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten SourceAudioBufferProvider(const sp<NBAIO_Source>& source); 31010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten virtual ~SourceAudioBufferProvider(); 32010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten 33010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten // AudioBufferProvider interface 34010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten virtual status_t getNextBuffer(Buffer *buffer, int64_t pts); 35010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten virtual void releaseBuffer(Buffer *buffer); 36010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten 37288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // ExtendedAudioBufferProvider interface 38288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten virtual size_t framesReady() const; 39288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten 40010662326b9c43c703725f933e95e0897f8a6bddGlenn Kastenprivate: 41010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten const sp<NBAIO_Source> mSource; // the wrapped source 42010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten /*const*/ size_t mFrameBitShift; // log2(frame size in bytes) 43010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten void* mAllocated; // pointer to base of allocated memory 44010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten size_t mSize; // size of mAllocated in frames 45010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten size_t mOffset; // frame offset within mAllocated of valid data 46010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten size_t mRemaining; // frame count within mAllocated of valid data 47010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten size_t mGetCount; // buffer.frameCount of the most recent getNextBuffer 48010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten}; 49010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten 50010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten} // namespace android 51010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten 52010662326b9c43c703725f933e95e0897f8a6bddGlenn Kasten#endif // ANDROID_SOURCE_AUDIO_BUFFER_PROVIDER_H 53