diff options
Diffstat (limited to 'services/audioflinger/AudioBufferProviderSource.h')
-rw-r--r-- | services/audioflinger/AudioBufferProviderSource.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/services/audioflinger/AudioBufferProviderSource.h b/services/audioflinger/AudioBufferProviderSource.h new file mode 100644 index 0000000..2b39937 --- /dev/null +++ b/services/audioflinger/AudioBufferProviderSource.h @@ -0,0 +1,56 @@ +/* + * 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 "AudioBufferProvider.h" + +namespace android { + +class AudioBufferProviderSource : public NBAIO_Source { + +public: + AudioBufferProviderSource(AudioBufferProvider *provider, 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 |