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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_RENDERER_MEDIA_RTC_MEDIA_CONSTRAINTS_H_
#define CONTENT_RENDERER_MEDIA_RTC_MEDIA_CONSTRAINTS_H_
#include "base/compiler_specific.h"
#include "content/common/content_export.h"
#include "third_party/libjingle/source/talk/app/webrtc/mediaconstraintsinterface.h"
namespace blink {
class WebMediaConstraints;
}
namespace content {
// RTCMediaConstraints acts as a glue layer between WebKits MediaConstraints and
// libjingle webrtc::MediaConstraintsInterface.
// Constraints are used by PeerConnection and getUserMedia API calls.
class CONTENT_EXPORT RTCMediaConstraints
: public NON_EXPORTED_BASE(webrtc::MediaConstraintsInterface) {
public:
RTCMediaConstraints();
explicit RTCMediaConstraints(
const blink::WebMediaConstraints& constraints);
virtual ~RTCMediaConstraints();
virtual const Constraints& GetMandatory() const OVERRIDE;
virtual const Constraints& GetOptional() const OVERRIDE;
// Adds a mandatory constraint, optionally overriding an existing one.
// If the constraint is already set and |override_if_exists| is false,
// the function will return false, otherwise true.
bool AddMandatory(const std::string& key, const std::string& value,
bool override_if_exists);
// As above, but against the optional constraints.
bool AddOptional(const std::string& key, const std::string& value,
bool override_if_exists);
protected:
bool AddConstraint(Constraints* constraints,
const std::string& key,
const std::string& value,
bool override_if_exists);
Constraints mandatory_;
Constraints optional_;
};
} // namespace content
#endif // CONTENT_RENDERER_MEDIA_RTC_MEDIA_CONSTRAINTS_H_
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