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/*
* Copyright (C) 2011, 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. 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
* DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef AsyncAudioDecoder_h
#define AsyncAudioDecoder_h
#include "platform/heap/Handle.h"
#include "public/platform/WebThread.h"
#include "wtf/OwnPtr.h"
#include "wtf/build_config.h"
namespace blink {
class AbstractAudioContext;
class AudioBuffer;
class AudioBufferCallback;
class AudioBus;
class DOMArrayBuffer;
class ScriptPromiseResolver;
// AsyncAudioDecoder asynchronously decodes audio file data from a DOMArrayBuffer in a worker thread.
// Upon successful decoding, a completion callback will be invoked with the decoded PCM data in an AudioBuffer.
class AsyncAudioDecoder {
DISALLOW_NEW();
WTF_MAKE_NONCOPYABLE(AsyncAudioDecoder);
public:
AsyncAudioDecoder();
~AsyncAudioDecoder();
// Must be called on the main thread. |decodeAsync| and callees must not modify any of the
// parameters except |audioData|. They are used to associate this decoding instance with the
// caller to process the decoding appropriately when finished.
void decodeAsync(DOMArrayBuffer* audioData, float sampleRate, AudioBufferCallback* successCallback, AudioBufferCallback* errorCallback, ScriptPromiseResolver* , AbstractAudioContext*);
private:
AudioBuffer* createAudioBufferFromAudioBus(AudioBus*);
static void decode(DOMArrayBuffer* audioData, float sampleRate, AudioBufferCallback* successCallback, AudioBufferCallback* errorCallback, ScriptPromiseResolver*, AbstractAudioContext*);
static void notifyComplete(DOMArrayBuffer* audioData, AudioBufferCallback* successCallback, AudioBufferCallback* errorCallback, AudioBus*, ScriptPromiseResolver*, AbstractAudioContext*);
OwnPtr<WebThread> m_thread;
};
} // namespace blink
#endif // AsyncAudioDecoder_h
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