56 lines
1.9 KiB
C++
56 lines
1.9 KiB
C++
/*
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* Copyright (C) 2012 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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// Implementation of NBAIO_Source that wraps an AudioBufferProvider
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#ifndef ANDROID_AUDIO_BUFFER_PROVIDER_SOURCE_H
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#define ANDROID_AUDIO_BUFFER_PROVIDER_SOURCE_H
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#include "NBAIO.h"
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#include <media/AudioBufferProvider.h>
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namespace android {
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class AudioBufferProviderSource : public NBAIO_Source {
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public:
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AudioBufferProviderSource(AudioBufferProvider *provider, const NBAIO_Format& format);
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virtual ~AudioBufferProviderSource();
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// NBAIO_Port interface
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//virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers,
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// NBAIO_Format counterOffers[], size_t& numCounterOffers);
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//virtual NBAIO_Format format();
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// NBAIO_Source interface
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//virtual size_t framesRead() const;
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//virtual size_t framesOverrun();
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//virtual size_t overruns();
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virtual ssize_t availableToRead();
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virtual ssize_t read(void *buffer, size_t count);
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virtual ssize_t readVia(readVia_t via, size_t total, void *user, size_t block);
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private:
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AudioBufferProvider * const mProvider;
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AudioBufferProvider::Buffer mBuffer; // current buffer
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size_t mConsumed; // number of frames consumed so far from current buffer
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};
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} // namespace android
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#endif // ANDROID_AUDIO_BUFFER_PROVIDER_SOURCE_H
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