Time Base Control Plug-in

REALbasic plug-in that is able to create new time bases.
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Time Base Control Plug-in Ranking & Summary

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  • Rating:
  • License:
  • Freeware
  • Price:
  • FREE
  • Publisher Name:
  • Alfred Van Hoek
  • Publisher web site:
  • http://homepage.mac.com/vanhoek/#broadcaster
  • Operating Systems:
  • Mac OS X 10.2 or later
  • File Size:
  • 205 KB

Time Base Control Plug-in Tags


Time Base Control Plug-in Description

REALbasic plug-in that is able to create new time bases. Timing and scheduling tasks with Timebases and clocks. This plugin provides a class that enables you to set and get the timebase of a movie. Access to the TimeBase also allows scheduling of tasks triggered from the TimeBase, and you can accomplish this with the TimeBaseCallBack class. It is a requirement that a QuickTime MoviePlayer (can be invisible) is living on the window. TimeBase is a QuickTime concept that derives time from either a clock component or from another timebase. A timebase constitutes a set of attributes, a time value and a time scale, which are interdepedent. For example, if the scale is being changed, the time value changes accordingly.Time scale is the number of units into which a second is subdivided. For most QuickTime movies, the time scale is set to 600, meaning that the smallest fraction of time measurement for the movie is 1/600th of a second.Another attribute is the rate, the multiplier for the time scale. The rate controls how fast the movie plays. When the rate is 1.0, the movie plays at its normal speed, meaning that for each second of play the movie's time advances a number of units equal to the time scale. If the rate is between 0.0 and 1.0, the movie plays in slow motion, and fewer units are counted off per second of play. A negative rate implies that the movie is playing backward. A rate of 0 means that the movie is stopped.TimeBaseCallBack defines a callback event that is triggered by the TimeBase/clock component. Callback events are scheduled at specific times, at rate changes, time jumps, and also can be scheduled when this callback instance is being destroyed. When callback events do not involve memory movement, events can be triggered at interupt time. TImeBaseClock is a search engine to look for a clockComponent that can be used to drive a timebase. The search can be limited by using a subType or by flags that are considered constants to this class. What's New in This Release: · Changed the way constructors are defined to make this plugin compatible with REALbasic 2008R3 or higher.


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