Spirantho wrote: @Hans The TV cards will always be very slow on RadeonHD machines because there's no way of directly displaying a YUV422 format bitmap (like overlay does). At least until there is a way. :) I can actually do it with RGB565 but that sucks up a lot of PCI bus bandwidth.
Do you know the reason why that is?
Yes. The driver is still a work-in-progress.
Quote:
@Hans ...and probably a solution to be able to use YUV at last?
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now that there is experimental NTSC support, i'd like to try this on my SAM -- if for no other reason than i miss my gamecube and we have no television to hook it up to.
can anyone here actually recommend a specific card that they know works before i start buying kit off of amazon?
All the Win/TV cards I've tried have worked so far. In fact I only have one TV card that doesn't work, and that's because it uses a PCI bridge which AmigaOS 4 doesn't seem to cross - it just doesn't see anything past the bridge (including the Conexant chipset). I think I've tried about 5 Win/TV cards so far - I use them as my reference platforms. I've also heard that the ATI All-In-Wonder cards (I think it was) worked too, but I think they'll be 5V so no good in a Sam. It's the 3.3V specification you need to be careful of.
Spirantho wrote: All the Win/TV cards I've tried have worked so far. In fact I only have one TV card that doesn't work, and that's because it uses a PCI bridge which AmigaOS 4 doesn't seem to cross - it just doesn't see anything past the bridge (including the Conexant chipset). I think I've tried about 5 Win/TV cards so far - I use them as my reference platforms. I've also heard that the ATI All-In-Wonder cards (I think it was) worked too, but I think they'll be 5V so no good in a Sam. It's the 3.3V specification you need to be careful of.
Check in Ranger if the bridge's IO and Mem spaces are enabled (the "Command" field). UBoot doesn't enable the bridges properly; at least on the A1-XE.
Back when I first started tinkering with Radeon HD cards (actually, it was a Radeon X1300), it took me a while to figure out why the card wasn't responding. Once I discovered that it was the bridge's fault, I added code to the RadeonHD driver to check for any bridges between the graphics chipset and the CPU, and reconfigure them if necessary.
I can see the problem now; you're using a Pegasos II. The Pegasos II's firmware doesn't scan for PCI devices behind a bridge. This is why Radeon HD cards don't work on Pegasos II machines, and the problem will probably never be fixed.
I already replied to this on AW.net, but for the record - if you press 'S' with the display window selected, it goes to S-Video mode and you get colour with an S-Video signal.
I can't, I'm afraid.I need the datasheet for the MPEG encoder chip, and I can't find one.Sorry! If you can find a full datasheet for the Conexant Cx23416 let me know!
That would help, yes :) We still need the datasheet for the Conexant Cx22702 though I'm afraid. I may mess around with the 23416 a bit though, in case anyone needs a video encoding from composite video :)
I would get in touch with Frank Mariak if I were you. He had some capture working with certain boards back in the morphos 1.3 days iirc. He might have docs or code to help.
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