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Time conversion methods

timeToFrames(t = time + thisComp.displayStartTime, fps = 1.0 / thisComp.frameDuration, isDuration = false)
Return type: Number.

Argument type: t and fps are Numbers; isDuration is a Boolean.

Converts the value of t, which defaults to the current composition time, to an integer number of frames. The number of frames per second is specified in the fps argument, which defaults to the frame rate of the current composition (1.0 / thisComp.frameDuration). The isDuration argument, which defaults to false, should be true if the t value represents a difference between two times instead of an absolute time. Absolute times are rounded down towards negative infinity; durations are rounded away from zero (up for positive values).

framesToTime(frames, fps = 1.0 / thisComp.frameDuration)
Return type: Number.

Argument type: frames and fps are Numbers.

The inverse of timeToFrames. Returns the time corresponding to the frames argument, which is required. It doesn’t have to be an integer. See timeToFrames for explanation of the fps argument.

timeToTimecode(t = time + thisComp.displayStartTime, timecodeBase = 30, isDuration = false)
Return type: String.

Argument type: t and timecodeBase are Numbers; isDuration is a Boolean.

Converts the value of t to a String representing timecode. See timeToFrames for an explanation of the t and isDuration arguments. The timecodeBase value, which defaults to 30, specifies the number of frames in one second.

timeToNTSCTimecode(t = time + thisComp.displayStartTime, ntscDropFrame = false, isDuration = false)
Return type: String.

Argument type: t is a Number, ntscDropFrame and isDuration are Booleans.

Converts t to a String representing NTSC timecode. See timeToFrames for an explanation of the t and isDuration arguments. If ntscDropFrame is false (the default), the result String is NTSC non-drop-frame timecode. If ntscDropFrame is true, the result String is NTSC drop-frame timecode.

timeToFeetAndFrames(t = time + thisComp.displayStartTime, fps = 1.0 / thisComp.frameDuration, framesPerFoot = 16, isDuration = false)
Return type: String.

Argument type: t, fps, and framesPerFoot are Numbers; isDuration is a Boolean.

Converts the value of t to a String representing feet of film and frames. See timeToFrames for an explanation of the t, fps, and isDuration arguments. The framesPerFoot argument specifies the number of frames in one foot of film. It defaults to 16, which is the most common rate for 35mm footage.

timeToCurrentFormat(t = time + thisComp.displayStartTime, fps = 1.0 / thisComp.frameDuration, isDuration = false)
Return type: String.

Argument type: t and fps are Numbers; isDuration is a Boolean.

Converts the value of t to a String representing time in the current Project Settings display format. See timeToFrames for a definition of all of the arguments.

If you want more control over the look of timecode in your footage, use the timeToCurrentFormat method or other timeTo methods to generate the timecode instead of using the Timecode or Numbers effect. Create a text layer, add an expression to the Source Text property, and enter timeToCurrentFormat() in the expression field. This method enables you to format and animate the timecode text. In addition, the timecode uses the same display style defined by the current project settings.




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lloydalvarez said on Apr 16, 2007 at 6:53 AM :
When using expressions on Time Remapping keep in mind that TR works with time and not frames even though it might display frames in the UI. So whenever you want to do any calculations with expressions convert the value to frames using timeToFrames and then back to time by using framesToTime.
The value that is converted is t so in the default substitute time with your timeRemap value.

 

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