ControlTimestamp

@interface ControlTimestamp : NSObject <NSCoding, NSCopying>

Class representing Control Timestamps reported by the DVB-CSS Timeline Synchronisation protocol. It provides operations to serialise and de-serialise control timestamps.

Properties

  • String representation of Content Time (position on TV’s timeline, time in nanoseconds)

    Declaration

    Objective-C

    @property (readwrite, strong, nonatomic) NSString *contentTime;

    Swift

    var contentTime: String! { get set }

  • String representation of WallClock Time (position on WallClock Timeline, time in timeline ticks e.g. PTS ticks for Presentation Timestamp timeline)

    Declaration

    Objective-C

    @property (readwrite, strong, nonatomic) NSString *wallClockTime;

    Swift

    var wallClockTime: String! { get set }

  • Time speed multiplier of TV’s timeline

    Declaration

    Objective-C

    @property (assign, readwrite, nonatomic) double timelineSpeedMultiplier;

    Swift

    var timelineSpeedMultiplier: Double { get set }

Factory methods

  • Create a ControlTimestamp instance from a dictionary containing known fields and values

    Declaration

    Objective-C

    + (instancetype)ControlTimestampWithDictionary:(NSDictionary *)dict;

    Parameters

    dict

    a dictionary containing values for keys kCrtlTimestampContentTime, kCrtlTimestampWallClockTime, kCrtlTimestampTimelineSpeedMultiplier

    Return Value

    a ControlTimestamp instance

Initialisation

  • Initialise with a dictionary containing values for keys kCrtlTimestampContentTime, kCrtlTimestampWallClockTime, kCrtlTimestampTimelineSpeedMultiplier

    Declaration

    Objective-C

    - (instancetype)initWithDictionary:(NSDictionary *)dict;

    Swift

    init!(dictionary dict: [AnyHashable : Any]!)

    Parameters

    dict

    a dictionary

    Return Value

    a ControlTimestamp instance

Encoding methods

  • Serialise ControlTimestamp object to an NSDictionary

    Declaration

    Objective-C

    - (NSDictionary *)toDictionary;

    Swift

    func toDictionary() -> [AnyHashable : Any]!

    Return Value

    an NSDisctionary instance