static WebMediaConstraints createFromNamedConstraints(WebVector<WebMediaConstraint>& mandatory, const WebVector<WebMediaConstraint>& optional, MediaErrorState& errorState)
{
WebMediaTrackConstraintSet basic;
WebMediaTrackConstraintSet advanced;
WebMediaConstraints constraints;
if (RuntimeEnabledFeatures::mediaConstraintsEnabled()) {
parseOldStyleNames(mandatory, basic, errorState);
if (errorState.hadException())
return constraints;
// We ignore errors in optional constraints.
MediaErrorState ignoredErrorState;
parseOldStyleNames(optional, advanced, ignoredErrorState);
}
WebVector<WebMediaTrackConstraintSet> advancedVector(&advanced, 1);
// Use the 4-argument initializer until Chrome has been converted.
constraints.initialize(optional, mandatory, basic, advancedVector);
return constraints;
}
WebMediaConstraints create(const MediaTrackConstraintSet& constraintsIn, MediaErrorState& errorState)
{
WebMediaConstraints constraints;
WebMediaTrackConstraintSet constraintBuffer;
WebVector<WebMediaTrackConstraintSet> advancedBuffer;
copyConstraints(constraintsIn, constraintBuffer);
// TODO(hta): Add initialization of advanced constraints once present.
// https://crbug.com/253412
if (constraintsIn.hasOptional() || constraintsIn.hasMandatory()) {
if (!constraintBuffer.isEmpty()) {
errorState.throwTypeError("Malformed constraint: Cannot use both optional/mandatory and specific constraints.");
return WebMediaConstraints();
}
WebVector<WebMediaConstraint> optional;
WebVector<WebMediaConstraint> mandatory;
if (!parse(constraintsIn, optional, mandatory)) {
errorState.throwTypeError("Malformed constraints object.");
return WebMediaConstraints();
}
return createFromNamedConstraints(mandatory, optional, errorState);
}
constraints.initialize(constraintBuffer, advancedBuffer);
return constraints;
}
WebMediaConstraints create()
{
WebMediaConstraints constraints;
constraints.initialize();
return constraints;
}
