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/*
* Copyright (C) 2013 Apple 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. ``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
* 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 RealtimeMediaSourceCapabilities_h
#define RealtimeMediaSourceCapabilities_h
#if ENABLE(MEDIA_STREAM)
#include "RealtimeMediaSourceSettings.h"
#include <wtf/RefCounted.h>
#include <wtf/Vector.h>
#include <wtf/text/AtomicString.h>
namespace WebCore {
class CapabilityValueOrRange {
public:
enum Type {
Undefined,
Double,
ULong,
DoubleRange,
ULongRange,
};
Type type() const { return m_type; }
union ValueUnion {
unsigned long asULong;
double asDouble;
};
CapabilityValueOrRange()
: m_type(Undefined)
{
}
CapabilityValueOrRange(double value)
: m_type(Double)
{
m_minOrValue.asDouble = value;
}
CapabilityValueOrRange(unsigned long value)
: m_type(ULong)
{
m_minOrValue.asULong = value;
}
CapabilityValueOrRange(double min, double max)
: m_type(DoubleRange)
{
m_minOrValue.asDouble = min;
m_max.asDouble = max;
}
CapabilityValueOrRange(unsigned long min, unsigned long max)
: m_type(ULongRange)
{
m_minOrValue.asULong = min;
m_max.asULong = max;
}
const ValueUnion& rangeMin() const
{
ASSERT(m_type == DoubleRange || m_type == ULongRange);
return m_minOrValue;
}
const ValueUnion& rangeMax() const
{
ASSERT(m_type == DoubleRange || m_type == ULongRange);
return m_max;
}
const ValueUnion& value() const
{
ASSERT(m_type == Double || m_type == ULong);
return m_minOrValue;
}
private:
ValueUnion m_minOrValue;
ValueUnion m_max;
Type m_type;
};
class RealtimeMediaSourceCapabilities : public RefCounted<RealtimeMediaSourceCapabilities> {
public:
static PassRefPtr<RealtimeMediaSourceCapabilities> create(const RealtimeMediaSourceSupportedConstraints& supportedConstraints)
{
return adoptRef(new RealtimeMediaSourceCapabilities(supportedConstraints));
}
~RealtimeMediaSourceCapabilities() { }
bool supportsWidth() const { return m_supportedConstraints.supportsWidth(); }
const CapabilityValueOrRange& width() { return m_width; }
void setWidth(const CapabilityValueOrRange& width) { m_width = width; }
bool supportsHeight() const { return m_supportedConstraints.supportsHeight(); }
const CapabilityValueOrRange& height() { return m_height; }
void setHeight(const CapabilityValueOrRange& height) { m_height = height; }
bool supportsFrameRate() const { return m_supportedConstraints.supportsFrameRate(); }
const CapabilityValueOrRange& frameRate() { return m_frameRate; }
void setFrameRate(const CapabilityValueOrRange& frameRate) { m_frameRate = frameRate; }
bool supportsFacingMode() const { return m_supportedConstraints.supportsFacingMode(); }
const Vector<RealtimeMediaSourceSettings::VideoFacingMode>& facingMode() { return m_facingMode; }
void addFacingMode(RealtimeMediaSourceSettings::VideoFacingMode mode) { m_facingMode.append(mode); }
bool supportsAspectRatio() const { return m_supportedConstraints.supportsAspectRatio(); }
const CapabilityValueOrRange& aspectRatio() { return m_aspectRatio; }
void setAspectRatio(const CapabilityValueOrRange& aspectRatio) { m_aspectRatio = aspectRatio; }
bool supportsVolume() const { return m_supportedConstraints.supportsVolume(); }
const CapabilityValueOrRange& volume() { return m_volume; }
void setVolume(const CapabilityValueOrRange& volume) { m_volume = volume; }
bool supportsSampleRate() const { return m_supportedConstraints.supportsSampleRate(); }
const CapabilityValueOrRange& sampleRate() { return m_sampleRate; }
void setSampleRate(const CapabilityValueOrRange& sampleRate) { m_sampleRate = sampleRate; }
bool supportsSampleSize() const { return m_supportedConstraints.supportsSampleSize(); }
const CapabilityValueOrRange& sampleSize() { return m_sampleSize; }
void setSampleSize(const CapabilityValueOrRange& sampleSize) { m_sampleSize = sampleSize; }
enum class EchoCancellation {
ReadOnly = 0,
ReadWrite = 1,
};
bool supportsEchoCancellation() const { return m_supportedConstraints.supportsEchoCancellation(); }
EchoCancellation echoCancellation() { return m_echoCancellation; }
void setEchoCancellation(EchoCancellation echoCancellation) { m_echoCancellation = echoCancellation; }
bool supportsDeviceId() const { return m_supportedConstraints.supportsDeviceId(); }
const AtomicString& deviceId() { return m_deviceId; }
void setDeviceId(const AtomicString& id) { m_deviceId = id; }
bool supportsGroupId() const { return m_supportedConstraints.supportsGroupId(); }
const AtomicString& groupId() { return m_groupId; }
void setGroupId(const AtomicString& id) { m_groupId = id; }
private:
RealtimeMediaSourceCapabilities(const RealtimeMediaSourceSupportedConstraints& supportedConstraints)
: m_supportedConstraints(supportedConstraints)
{
}
CapabilityValueOrRange m_width;
CapabilityValueOrRange m_height;
CapabilityValueOrRange m_aspectRatio;
CapabilityValueOrRange m_frameRate;
Vector<RealtimeMediaSourceSettings::VideoFacingMode> m_facingMode;
CapabilityValueOrRange m_volume;
CapabilityValueOrRange m_sampleRate;
CapabilityValueOrRange m_sampleSize;
EchoCancellation m_echoCancellation;
AtomicString m_deviceId;
AtomicString m_groupId;
const RealtimeMediaSourceSupportedConstraints& m_supportedConstraints;
};
} // namespace WebCore
#endif // RealtimeMediaSourceCapabilities_h
#endif
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