Function

CMTimeGetSeconds(_:)

Converts a CMTime to seconds.

Declaration

func CMTimeGetSeconds(_ time: CMTime) -> Float64

Parameters

time: CMTime to be converted.

Return Value

The resulting Float64 number of seconds.

Discussion

If the CMTime is invalid or indefinite, NaN is returned. If the CMTime is infinite, +/- infinity is returned. If the CMTime is numeric, epoch is ignored, and ^time.value / _{time.timescale} is returned. The division is done in Float64, so the fraction is not lost in the returned result.

See Also

Inspecting and Evaluating Times

func CMTimeCompare(CMTime, CMTime) -> Int32

Returns the numerical relationship of two CMTimes.

func CMTimeAbsoluteValue(CMTime) -> CMTime

Returns the absolute value of a CMTime.

func CMTimeMaximum(CMTime, CMTime) -> CMTime

Returns the greater of two CMTimes (as defined by CMTimeCompare(_:_:)).

func CMTimeMinimum(CMTime, CMTime) -> CMTime

Returns the lesser of two CMTimes (as defined by CMTimeCompare(_:_:)).

func CMTIME_IS_VALID(CMTime) -> Bool

Returns a Boolean value that indicates whether a given time is valid.

func CMTIME_IS_INVALID(CMTime) -> Bool

Returns a Boolean value that indicates whether a given time is invalid.

func CMTIME_IS_POSITIVEINFINITY(CMTime) -> Bool

Returns a Boolean value that indicates whether a given time is positive infinity.

func CMTIME_IS_NEGATIVEINFINITY(CMTime) -> Bool

Returns a Boolean value that indicates whether a given time is negative infinity.

func CMTIME_IS_INDEFINITE(CMTime) -> Bool

Returns a Boolean value that indicates whether a given time is indefinite.

func CMTIME_IS_NUMERIC(CMTime) -> Bool

Returns a Boolean value that indicates whether a given time is numeric.

func CMTIME_HAS_BEEN_ROUNDED(CMTime) -> Bool

Returns a Boolean value that indicates whether a given time has been rounded.