Amiga.org

Amiga computer related discussion => General chat about Amiga topics => Topic started by: clusteruk on November 14, 2010, 04:09:07 PM

Title: Amiga 1000 playing 640x512, 24 bit video with sound using DCTV
Post by: clusteruk on November 14, 2010, 04:09:07 PM
For all you Classic Amiga lovers.

http://www.youtube.com/watch?v=Nk0q5reCank

I removed this video from my September update so that people can see it in all its glory. Basically it is a bog standard 68000 powered Amiga 1000 but with internal IDE drive and external 8mb ram. The animation is a 640x512 animation using 3 bit planes Amiga 8 colour animation that once put through DCTV turns into a roughly 256,000 composite image that is then converted back to RGB.

Enjoy and remember this machine is 25 years old and then PC's could only manage monochrome displays and Macs had four grey levels.

My true first love in computers, and I do not need to hear about AGA either as that was years later

Yes I know I only actually animate the middle quarter, but she is old and I will do a full screen version for A3000 soon.
Title: Re: Amiga 1000 playing 640x512, 24 bit video with sound using DCTV
Post by: ChaosLord on November 14, 2010, 04:18:59 PM
640x512 FTW!!

I have been using that mode since forever.  Most every Amiga game I ever coded runs in that mode.
Title: Re: Amiga 1000 playing 640x512, 24 bit video with sound using DCTV
Post by: Crom00 on November 14, 2010, 04:21:52 PM
The AGA was actually wuite nice with the DCTV as the increased bandwith and speed helped out playback quite well.
Title: Re: Amiga 1000 playing 640x512, 24 bit video with sound using DCTV
Post by: redrumloa on November 14, 2010, 04:25:56 PM
Nice...
Title: Re: Amiga 1000 playing 640x512, 24 bit video with sound using DCTV
Post by: klx300r on November 14, 2010, 04:39:12 PM
a beauty even after all these years..thanks for the video:)
Title: Re: Amiga 1000 playing 640x512, 24 bit video with sound using DCTV
Post by: EDanaII on November 14, 2010, 06:31:26 PM
@ ClusterUK

I just "facebooked" your video, Steve, so that those who still don't get why I remain a fan could see. I still don't expect them to get it, ;) but it is a nice demonstration of the computers potential. Nice job. :)
Title: Re: Amiga 1000 playing 640x512, 24 bit video with sound using DCTV
Post by: clusteruk on November 14, 2010, 07:03:19 PM
Quote from: Crom00;591680
The AGA was actually wuite nice with the DCTV as the increased bandwith and speed helped out playback quite well.

You are absolutely right, I did run the same high resolution animation in Ham8 on A1200 with sound, did not need DCTV.

However, this is to show what was capable nearly tens years earlier and on the original Amiga. Just to remind how ground breaking A1000 was and still is.
Title: Re: Amiga 1000 playing 640x512, 24 bit video with sound using DCTV
Post by: desiv on November 14, 2010, 07:29:25 PM
Nice!
In fact it was your 25th anniversary video(s) that made me start looking for a DCTV for my Amiga 500.
(Never had one, although I did have a HAM-E back in the day..)

Then I got it and started playing with it, and noticed that it didn't work quite like YOUR DCTV?  Was mine broken?  
Nope, that's when I found out about the DCTV Converter.  ;-)
Although I think I've sourced one of those now to add to my setup, which also now includes an Amiga 1000.  :-)

Thanx,

desiv

p.s.  It's interesting.  From what I remember from my HAM-E, it and the DCTV did basically the same thing, but DCTV was composite 24bit unless you had the converter.  And HAM-E was all RGB, although I assume you could get an RGB to composite converter for it if needed/wanted.
Title: Re: Amiga 1000 playing 640x512, 24 bit video with sound using DCTV
Post by: save2600 on November 14, 2010, 07:36:26 PM
Sweet, thanks for posting! Makes me want to get out my boxed DCTV and play around with it a bit  :)
Title: Re: Amiga 1000 playing 640x512, 24 bit video with sound using DCTV
Post by: desiv on November 21, 2010, 01:58:58 AM
OK, got my DCTV converter!

The Amiga 1000 is hooked up to the 1084S currently, so I pulled out my A500.

I have the A500 hooked up with the DCTV.
The DCTV to the DCTV RGB Converter.
The DCTV RGB Converter to one of Amigamaniacs Amiga-s-video adapters.

I using the composite output from the s-video adapter for now to my new (to me) 1701 monitor, and it works great!!!

I'll eventually move that wonderful mess to my Amiga 1000 and the chroma-luma input on my 1084S (the A1200 has the RGB).

Now I just need a hard disk setup on my A1000 to make it really useful for DCTV stuff.

desiv
Title: Re: Amiga 1000 playing 640x512, 24 bit video with sound using DCTV
Post by: amigadave on November 21, 2010, 07:55:17 AM
DCTV was another missed opportunity that was under appreciated in its time.  I know it was a bit pricey when I bought mine new around 1990, or maybe it was 1991, but I was very surprised and disappointed that more developers did not write more games, or applications that took advantage of the DCTV hardware.  The ability to show a couple million colors on screen at one time and animate them just as fast as a 8 or 16 color Amiga screen resolution was a great accomplishment that should have been used more and longer, given that the A500 was so popular for such a long period of time.
Title: Re: Amiga 1000 playing 640x512, 24 bit video with sound using DCTV
Post by: clusteruk on November 21, 2010, 09:51:44 AM
Quote from: desiv;593336
OK, got my DCTV converter!

The Amiga 1000 is hooked up to the 1084S currently, so I pulled out my A500.

I have the A500 hooked up with the DCTV.
The DCTV to the DCTV RGB Converter.
The DCTV RGB Converter to one of Amigamaniacs Amiga-s-video adapters.

I using the composite output from the s-video adapter for now to my new (to me) 1701 monitor, and it works great!!!

I'll eventually move that wonderful mess to my Amiga 1000 and the chroma-luma input on my 1084S (the A1200 has the RGB).

Now I just need a hard disk setup on my A1000 to make it really useful for DCTV stuff.

desiv

if you need any software let me know, also i can send you the dctv anim of jay as well. i have a ham8 version if wanted.

@amigadave

agreed, i sold ham-e which was much better because it was rgb, however dctv with rgb converter is amazing and more efficient as it can use 3 bitplane mode.