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Old 02 April 2023, 17:43   #1
remz
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Join Date: May 2022
Location: Canada
Posts: 138
CDTV and CD32 real hardware owners - Help wanted

Hello owners of CDTV or CD32:
I would like to see if someone would be willing to assist me running my video player test on real hardware to measure the performance.
I have prepared an ISO image, ready to be burnt and tested. (Confirmed on WinUAE cdtv and cd32: and I did a previous test on my real cd32 a few months ago but it is currently not available for me to test for a few weeks at the moment).

The video test is a 20 seconds extract of a movie, in 240x135xHAM6 running at 12 frame per second, currently designed for cd32 double-speed reading.

On a CDTV, timed in WinUAE, the video plays in approx 54 seconds. I would like to know what is the time on a real hardware.
(With fast ram and a faster cpu, the CDTV could run a bit faster, up to 49 seconds).

Since the exact movie size in bytes is:
6,204,660 bytes
divided by the total time to play, we obtain the cd read speed:
cd32: 6,204,660 / 20.7 seconds = 299742 bytes/second (perfect speed)
cdtv: 6,204,660 / 54 seconds = 114901 bytes/second (too slow, should be closer to 150000 ideally)
fast cdtv: 6,204,660 / 49 seconds = 126625 bytes/second, still a bit too slow

PM me if you are interested in trying it on your machine using a CD-R disc and I'll send you the ISO image.
(Note: optionally I could also burn the CD here and send it by regular mail)

Thank you very much!
Rem
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Old 03 April 2023, 12:25   #2
str0m
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Join Date: Oct 2016
Location: Newcastle, UK
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I have a CD32 and a TF330 so send me a link via PM and I will try it out
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Old 03 April 2023, 17:44   #3
spud
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Join Date: May 2010
Location: London, UK
Posts: 268
Happy to do a test with my CDTV , send the link!
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