/*
* Copyright (C) 2013 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 WebMediaStreamTrack_h
#define WebMediaStreamTrack_h
#include "WebCommon.h"
#include "WebNonCopyable.h"
#include "WebPrivatePtr.h"
namespace WebCore {
class MediaStreamComponent;
}
namespace blink {
class WebAudioSourceProvider;
class WebMediaStream;
class WebMediaStreamSource;
class WebString;
class WebMediaStreamTrack {
public:
class ExtraData {
public:
ExtraData() : m_owner(0) { }
virtual ~ExtraData() { }
BLINK_PLATFORM_EXPORT WebMediaStreamTrack owner();
#if INSIDE_BLINK
BLINK_PLATFORM_EXPORT void setOwner(WebCore::MediaStreamComponent*);
#endif
private:
WebCore::MediaStreamComponent* m_owner;
};
WebMediaStreamTrack() { }
WebMediaStreamTrack(const WebMediaStreamTrack& other) { assign(other); }
~WebMediaStreamTrack() { reset(); }
WebMediaStreamTrack& operator=(const WebMediaStreamTrack& other)
{
assign(other);
return *this;
}
BLINK_PLATFORM_EXPORT void assign(const WebMediaStreamTrack&);
BLINK_PLATFORM_EXPORT void initialize(const WebMediaStreamSource&);
BLINK_PLATFORM_EXPORT void initialize(const WebString& id, const WebMediaStreamSource&);
BLINK_PLATFORM_EXPORT void reset();
bool isNull() const { return m_private.isNull(); }
BLINK_PLATFORM_EXPORT WebString id() const;
BLINK_PLATFORM_EXPORT WebMediaStreamSource source() const;
BLINK_PLATFORM_EXPORT bool isEnabled() const;
// Extra data associated with this WebMediaStream.
// If non-null, the extra data pointer will be deleted when the object is destroyed.
// Setting the extra data pointer will cause any existing non-null
// extra data pointer to be deleted.
BLINK_PLATFORM_EXPORT ExtraData* extraData() const;
BLINK_PLATFORM_EXPORT void setExtraData(ExtraData*);
// The lifetime of the WebAudioSourceProvider should outlive the
// WebMediaStreamTrack, and clients are responsible for calling
// setSourceProvider(0) before the WebMediaStreamTrack is going away.
BLINK_PLATFORM_EXPORT void setSourceProvider(WebAudioSourceProvider*);
#if INSIDE_BLINK
BLINK_PLATFORM_EXPORT WebMediaStreamTrack(PassRefPtr<WebCore::MediaStreamComponent>);
BLINK_PLATFORM_EXPORT WebMediaStreamTrack(WebCore::MediaStreamComponent*);
BLINK_PLATFORM_EXPORT WebMediaStreamTrack& operator=(WebCore::MediaStreamComponent*);
BLINK_PLATFORM_EXPORT operator WTF::PassRefPtr<WebCore::MediaStreamComponent>() const;
BLINK_PLATFORM_EXPORT operator WebCore::MediaStreamComponent*() const;
#endif
private:
WebPrivatePtr<WebCore::MediaStreamComponent> m_private;
};
} // namespace blink
#endif // WebMediaStreamTrack_h