| /* |
| * 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); |
| virtual ssize_t readVia(readVia_t via, size_t total, void *user, 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 |