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/*
* Copyright (C) 2016 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. 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.
*/
#include "config.h"
#include "MediaTrackConstraints.h"
#if ENABLE(MEDIA_STREAM)
#include "MediaConstraints.h"
namespace WebCore {
enum class ConstraintSetType { Mandatory, Advanced };
static void set(MediaTrackConstraintSetMap& map, ConstraintSetType setType, ASCIILiteral typeAsString, MediaConstraintType type, const ConstrainLong& value)
{
IntConstraint constraint(typeAsString, type);
WTF::switchOn(value,
[&] (int integer) {
if (setType == ConstraintSetType::Mandatory)
constraint.setIdeal(integer);
else
constraint.setExact(integer);
},
[&] (const ConstrainLongRange& range) {
if (range.min)
constraint.setMin(range.min.value());
if (range.max)
constraint.setMax(range.max.value());
if (range.exact)
constraint.setExact(range.exact.value());
if (range.ideal)
constraint.setIdeal(range.ideal.value());
}
);
map.set(type, WTFMove(constraint));
}
static void set(MediaTrackConstraintSetMap& map, ConstraintSetType setType, ASCIILiteral typeAsString, MediaConstraintType type, const ConstrainDouble& value)
{
DoubleConstraint constraint(typeAsString, type);
WTF::switchOn(value,
[&] (double number) {
if (setType == ConstraintSetType::Mandatory)
constraint.setIdeal(number);
else
constraint.setExact(number);
},
[&] (const ConstrainDoubleRange& range) {
if (range.min)
constraint.setMin(range.min.value());
if (range.max)
constraint.setMax(range.max.value());
if (range.exact)
constraint.setExact(range.exact.value());
if (range.ideal)
constraint.setIdeal(range.ideal.value());
}
);
map.set(type, WTFMove(constraint));
}
static void set(MediaTrackConstraintSetMap& map, ConstraintSetType setType, ASCIILiteral typeAsString, MediaConstraintType type, const ConstrainBoolean& value)
{
BooleanConstraint constraint(typeAsString, type);
WTF::switchOn(value,
[&] (bool boolean) {
if (setType == ConstraintSetType::Mandatory)
constraint.setIdeal(boolean);
else
constraint.setExact(boolean);
},
[&] (const ConstrainBooleanParameters& parameters) {
if (parameters.exact)
constraint.setExact(parameters.exact.value());
if (parameters.ideal)
constraint.setIdeal(parameters.ideal.value());
}
);
map.set(type, WTFMove(constraint));
}
static void set(MediaTrackConstraintSetMap& map, ConstraintSetType setType, ASCIILiteral typeAsString, MediaConstraintType type, const ConstrainDOMString& value)
{
StringConstraint constraint(typeAsString, type);
WTF::switchOn(value,
[&] (const String& string) {
if (setType == ConstraintSetType::Mandatory)
constraint.appendIdeal(string);
else
constraint.appendExact(string);
},
[&] (const Vector<String>& vector) {
if (setType == ConstraintSetType::Mandatory) {
for (auto& string : vector)
constraint.appendIdeal(string);
} else {
for (auto& string : vector)
constraint.appendExact(string);
}
},
[&] (const ConstrainDOMStringParameters& parameters) {
if (parameters.exact) {
WTF::switchOn(parameters.exact.value(),
[&] (const String& string) {
constraint.appendExact(string);
},
[&] (const Vector<String>& vector) {
for (auto& string : vector)
constraint.appendExact(string);
}
);
}
if (parameters.ideal) {
WTF::switchOn(parameters.ideal.value(),
[&] (const String& string) {
constraint.appendIdeal(string);
},
[&] (const Vector<String>& vector) {
for (auto& string : vector)
constraint.appendIdeal(string);
}
);
}
}
);
map.set(type, WTFMove(constraint));
}
template<typename T> static inline void set(MediaTrackConstraintSetMap& map, ConstraintSetType setType, ASCIILiteral typeAsString, MediaConstraintType type, const std::optional<T>& value)
{
if (!value)
return;
set(map, setType, typeAsString, type, value.value());
}
static MediaTrackConstraintSetMap convertToInternalForm(ConstraintSetType setType, const MediaTrackConstraintSet& constraintSet)
{
MediaTrackConstraintSetMap result;
set(result, setType, "width"_s, MediaConstraintType::Width, constraintSet.width);
set(result, setType, "height"_s, MediaConstraintType::Height, constraintSet.height);
set(result, setType, "aspectRatio"_s, MediaConstraintType::AspectRatio, constraintSet.aspectRatio);
set(result, setType, "frameRate"_s, MediaConstraintType::FrameRate, constraintSet.frameRate);
set(result, setType, "facingMode"_s, MediaConstraintType::FacingMode, constraintSet.facingMode);
set(result, setType, "volume"_s, MediaConstraintType::Volume, constraintSet.volume);
set(result, setType, "sampleRate"_s, MediaConstraintType::SampleRate, constraintSet.sampleRate);
set(result, setType, "sampleSize"_s, MediaConstraintType::SampleSize, constraintSet.sampleSize);
set(result, setType, "echoCancellation"_s, MediaConstraintType::EchoCancellation, constraintSet.echoCancellation);
// FIXME: add latency
// FIXME: add channelCount
set(result, setType, "deviceId"_s, MediaConstraintType::DeviceId, constraintSet.deviceId);
set(result, setType, "groupId"_s, MediaConstraintType::GroupId, constraintSet.groupId);
set(result, setType, "displaySurface"_s, MediaConstraintType::DisplaySurface, constraintSet.displaySurface);
set(result, setType, "logicalSurface"_s, MediaConstraintType::LogicalSurface, constraintSet.logicalSurface);
set(result, setType, "zoom"_s, MediaConstraintType::Zoom, constraintSet.zoom);
return result;
}
static Vector<MediaTrackConstraintSetMap> convertAdvancedToInternalForm(const Vector<MediaTrackConstraintSet>& vector)
{
return vector.map([](auto& set) {
return convertToInternalForm(ConstraintSetType::Advanced, set);
});
}
static Vector<MediaTrackConstraintSetMap> convertAdvancedToInternalForm(const std::optional<Vector<MediaTrackConstraintSet>>& optionalVector)
{
if (!optionalVector)
return { };
return convertAdvancedToInternalForm(optionalVector.value());
}
MediaConstraints createMediaConstraints(const MediaTrackConstraints& trackConstraints)
{
MediaConstraints constraints;
constraints.mandatoryConstraints = convertToInternalForm(ConstraintSetType::Mandatory, trackConstraints);
constraints.advancedConstraints = convertAdvancedToInternalForm(trackConstraints.advanced);
constraints.isValid = true;
return constraints;
}
}
#endif
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