// https://w3c.github.io/mediacapture-main/#dom-constraindomstringparameters
dictionary ConstrainDOMStringParameters {
    (DOMString or sequence<DOMString>) exact;
    (DOMString or sequence<DOMString>) ideal;
};

// https://w3c.github.io/mediacapture-main/#dom-constraindoublerange
dictionary DoubleRange {
    double max;
    double min;
};

// https://w3c.github.io/mediacapture-main/#dom-constraindoublerange
dictionary ConstrainDoubleRange : DoubleRange {
    double exact;
    double ideal;
};

// https://w3c.github.io/mediacapture-main/#dom-constrainulongrange
dictionary ULongRange {
    [Clamp] unsigned long max;
    [Clamp] unsigned long min;
};

// https://w3c.github.io/mediacapture-main/#dom-constrainulongrange
dictionary ConstrainULongRange : ULongRange {
    [Clamp] unsigned long exact;
    [Clamp] unsigned long ideal;
};

// https://w3c.github.io/mediacapture-main/#dom-constrainbooleanparameters
dictionary ConstrainBooleanParameters {
    boolean exact;
    boolean ideal;
};

// https://w3c.github.io/mediacapture-main/#dom-constrainbooleanordomstringparameters
dictionary ConstrainBooleanOrDOMStringParameters {
    (boolean or DOMString) exact;
    (boolean or DOMString) ideal;
};

typedef (unsigned long or ConstrainULongRange) ConstrainULong;
typedef (double or ConstrainDoubleRange) ConstrainDouble;
typedef (boolean or ConstrainBooleanParameters) ConstrainBoolean;
typedef (DOMString or sequence<DOMString> or ConstrainDOMStringParameters) ConstrainDOMString;
typedef (boolean or DOMString or ConstrainBooleanOrDOMStringParameters) ConstrainBooleanOrDOMString;

// https://w3c.github.io/mediacapture-main/#dictdef-mediatrackconstraintset
dictionary MediaTrackConstraintSet {
    ConstrainULong width;
    ConstrainULong height;
    ConstrainDouble aspectRatio;
    ConstrainDouble frameRate;
    ConstrainDOMString facingMode;
    ConstrainDOMString resizeMode;
    ConstrainULong sampleRate;
    ConstrainULong sampleSize;
    ConstrainBooleanOrDOMString echoCancellation;
    ConstrainBoolean autoGainControl;
    ConstrainBoolean noiseSuppression;
    ConstrainDouble latency;
    ConstrainULong channelCount;
    ConstrainDOMString deviceId;
    ConstrainDOMString groupId;
    ConstrainBoolean backgroundBlur;
};

dictionary MediaTrackConstraints : MediaTrackConstraintSet {
    sequence<MediaTrackConstraintSet> advanced;
};

// https://w3c.github.io/mediacapture-main/#mediastreamconstraints
dictionary MediaStreamConstraints {
    (boolean or MediaTrackConstraints) video = false;
    (boolean or MediaTrackConstraints) audio = false;
};

// https://w3c.github.io/mediacapture-main/#dom-mediatracksupportedconstraints
dictionary MediaTrackSupportedConstraints {
    boolean width = true;
    boolean height = true;
    boolean aspectRatio = true;
    boolean frameRate = true;
    boolean facingMode = true;
    boolean resizeMode = true;
    boolean sampleRate = true;
    boolean sampleSize = true;
    boolean echoCancellation = true;
    boolean autoGainControl = true;
    boolean noiseSuppression = true;
    boolean latency = true;
    boolean channelCount = true;
    boolean deviceId = true;
    boolean groupId = true;
    boolean backgroundBlur = true;
};

// https://w3c.github.io/mediacapture-main/#dom-mediatrackcapabilities
dictionary MediaTrackCapabilities {
    ULongRange width;
    ULongRange height;
    DoubleRange aspectRatio;
    DoubleRange frameRate;
    sequence<DOMString> facingMode;
    sequence<DOMString> resizeMode;
    ULongRange sampleRate;
    ULongRange sampleSize;
    sequence<(boolean or DOMString)> echoCancellation;
    sequence<boolean> autoGainControl;
    sequence<boolean> noiseSuppression;
    DoubleRange latency;
    ULongRange channelCount;
    DOMString deviceId;
    DOMString groupId;
    sequence<boolean> backgroundBlur;
};

// https://w3c.github.io/mediacapture-main/#dom-mediatracksettings
dictionary MediaTrackSettings {
    unsigned long width;
    unsigned long height;
    double aspectRatio;
    double frameRate;
    DOMString facingMode;
    DOMString resizeMode;
    unsigned long sampleRate;
    unsigned long sampleSize;
    (boolean or DOMString) echoCancellation;
    boolean autoGainControl;
    boolean noiseSuppression;
    double latency;
    unsigned long channelCount;
    DOMString deviceId;
    DOMString groupId;
    boolean backgroundBlur;
};