Subject: Re: [linux-audio-dev] Problem and Solution: time
From: Roger Larsson (roger.larsson_AT_norran.net)
Date: ma tammi 10 2000 - 18:32:25 EST
Paul Barton-Davis wrote:
>
> > with 96 kHz the maximum duration is 12 hours - ok
>
> my US$0.02...
>
> imagine an arts festival that wants to use the legendary uptime of
> Linux to run a multi-day visitor-driven audio exhibit that has a
> "history" stretching over the time of exhibit.
>
> 12hrs - not ok.
>
> --p
But that is not the end of the story.
The 12 hours would be the wrap time for that particular stream.
And all times in one stream is represented by deltas...
(There is no global event time that all stream events has to be
represented in)
To handle a multimedia show of this kind you would probably have:
* a sync stream, running the script (1 kHz => 49 days, 100 Hz => ...)
* several audio streams (96 kHz ok)
* several video streams (25/30 Hz)
* some laser controlling streams (lets say 1 MHz)
* . . .
Note that all streams can "pause" easily by having 1/1 duration
(= one sample one Hz == one second)
There might be a reason to introduce a true pause:
0/f could be interpreted as pause for 1/f second - it would
be nice if you are transferring high resolution
images... [like a slide show]
/RogerL
-- Home page: http://www.norran.net/nra02596/
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