After Effects SDK: Support Sub-Tick Precision for Keyframe Times

The After Effects SDK currently exposes keyframe times through A_Time, which represents time as an integer number of ticks. This limits plug-ins to the precision of the current tick resolution when retrieving or setting keyframes.

For example, at a time scale of 30,720 ticks/second, a keyframe at 13.947372 ms corresponds to 428.46 ticks. However, A_Time can only represent 428 ticks, resulting in a retrieved time of approximately 13.932292 ms and an error of about 15 µs.

I would like to request that the After Effects SDK provide a higher-precision mechanism for both retrieving and setting keyframe times, allowing times to be represented at sub-tick precision.

Ideally, this could be provided through new versions of APIs such as AEGP_GetKeyframeTime() and AEGP_InsertKeyframe(), or through an equivalent high-precision time type/API.