Source/WebCore/platform/audio/AudioFileReader.h

/*
 * Copyright (C) 2010 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1.  Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 * 2.  Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 * 3.  Neither the name of Apple Inc. ("Apple") nor the names of
 *     its contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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 */

#ifndef AudioFileReader_h
#define AudioFileReader_h

#include <stdlib.h>
#include <wtf/RefPtr.h>

namespace WebCore {

class AudioBus;

// For both create functions:
// Pass in 0.0 for sampleRate to use the file's sample-rate, otherwise a sample-rate conversion to the requested
// sampleRate will be made (if it doesn't already match the file's sample-rate).
// The created buffer will have its sample-rate set correctly to the result.

RefPtr<AudioBus> createBusFromInMemoryAudioFile(const void* data, size_t dataSize, bool mixToMono, float sampleRate);

RefPtr<AudioBus> createBusFromAudioFile(const char* filePath, bool mixToMono, float sampleRate);
                                
// May pass in 0.0 for sampleRate in which case it will use the AudioBus's sampleRate                               
void writeBusToAudioFile(AudioBus* bus, const char* filePath, double fileSampleRate);

} // namespace WebCore

#endif // AudioFileReader_h