Hi There -
Having just worked on a similar project - the thing that I found to be
uncompatable with slower / older machies was the codec used to compress the
video's - the older pc's I tested it on didn't have the latest version of
Indeo (the project spec was that no downloads would be needed to view the
cd) - in the end I used cinepac - not brilliant quality but passable, also
plays back on any machine without having to download any additional plugins
for the default player -
Bertie
-----Original Message-----
From: Tab Julius <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
Cc: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
Date: Tuesday, November 14, 2000 8:17 PM
Subject: Re: <lingo-l> Lingo for checking out the performance of the
computer system
>
>Unfortunately there are so many factors that affect video playback. These
>include (but are not limited to):
>
>1) Processor speed
>2) Amount of RAM
>3) Amount of Video memory
>4) Speed of CD-ROM
>5) Caching mechanism(s)
>6) Local bus or not
>7) Drivers and hardware acceleration or not
>
>There are no simple ways to get a good aggregate approximation. Some
>playback systems have an internal performance check, but it's nothing (that
>I'm aware of) that you have access to. Each of the above factors can make
>a huge difference. For instance, if you have a good system but not local
>bus video, then things will drag. Or, if you have 64 meg of RAM, but
>nothing for video memory, you may have a problem. And so on.
>
>You could probably use something (maybe Buddy API) to just check processor
>and speed, and assume that if it's a Pentium 166 that it's on the lower
>range of the universe, and if it's a PIII 500 mhz that it's on the upper
>end of the spectrum, but there's a lot of midrange junk out there, things
>that had a fast processor but cheaped out on everything else.
>
>So, there's no easy reference for video streaming off the CD that I'm aware
>of. You could probably write some tests, but it'd be better written in C
>than in Lingo.
>
>- Tab
>
>At 08:56 PM 11/14/00 +0100, Michael von Aichberger wrote:
>>Hi everybody.
>>
>>I have (for the first time, I must admit) to program a CD-ROM application
>>(for Windows 95/98/NT/2000 only) that will contain digital video and
>>Quicktiime-VR and has to run on fast and slow computer systems. I think
that
>>I'll have to create different quaility grades of the digital video, at
least
>>one really good one and at least one a slow machine can cope with. "Slow"
in
>>this case means Pentium 166 MHz, 4x CD-ROM drive, 32 MB mermory. What I
>>still don't know is how I can check out the processor speed and the speed
of
>>the CD-ROM drive to determine which version of the digital movies to use.
>>Any ideas? Thanks a lot!
>>
>>Michael von Aichberger
>>
>>
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>
>
>[To remove yourself from this list, or to change to digest mode, go to
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>
>
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