[gmpi] Re: Reqs 3.9. Time - opening arguments.1

  • From: Paul Davis <paul@xxxxxxxxxxxxxxxxxxxxx>
  • To: gmpi@xxxxxxxxxxxxx
  • Date: Thu, 05 Feb 2004 13:57:10 -0500

>       Well, if the host is going to provide sync, it is just based on looking
>at the system time at a particular audio time, or vice versa, and 
>setting a reference point. Why can't the plugin do this itself if 
>necessary? Then the relative speed is just a drift calculation.

because only the host can define a fixed relationship between UST and
GMPI timebases. a plugin  might be called 10s or even 100's of msecs
after the timestamp assigned to a GMPI event was defined. GMPI time
may not have moved on (we're in the middle of a process() cycle), but
UST certainly has.

--p

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