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Unread postPosted: Thu Jun 14, 2012 5:35 pm 
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When I record video from the side panels with mediarecorder on my SGI o2, only a tiny portion is encoded when done recording and I get this error:

"Cannot map buffer for image conversion.
DM_IMAGE_COMPRESSION"

I'm using SGI JPEG, 30fps, full NTSC.

I'm using it on a 175mhz r10k with 128mb RAM and IRIX 6.5.30 btw, and it encodes fine for a sec or 2.


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Unread postPosted: Thu Jun 14, 2012 10:59 pm 
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That's what I wrote in your other thread. If I remember correctly, I have seen the the same error when I tried this with Irix 6.5.30. It works for me with Irix 6.5.22, but I also have 1GB RAM installed.

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Unread postPosted: Mon Jun 18, 2012 7:52 am 
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diegel wrote:
That's what I wrote in your other thread. If I remember correctly, I have seen the the same error when I tried this with Irix 6.5.30. It works for me with Irix 6.5.22, but I also have 1GB RAM installed.

I just downgraded to 6.5.15 and it's still crapping out with the same settings....I'd put more ram in it but all the ram on eBay is so expensive.


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Unread postPosted: Fri Oct 12, 2012 6:52 am 
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I know that I've heard 150MHz R10k had video capture issues, and I have a lingering suspicion that 175 might have as well.

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Unread postPosted: Fri Oct 12, 2012 7:39 am 
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SAQ wrote:
I know that I've heard 150MHz R10k had video capture issues, and I have a lingering suspicion that 175 might have as well.

It's been a long time, but that's my recollection, too. IIRC, for the R10k, 195 MHz was the minimum workable configuration.


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Unread postPosted: Sat Oct 27, 2012 5:37 am 
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Indeed, the 195MHz is the minimum for an R10k O2 to reliably capture video, according to e.g. Alexis Cousein:
http://groups.google.com/group/comp.sys ... 093dbed7b0

I think I still have a spare 195MHz CPU somewhere in a drawer, you can have it for 10 EUR plus shipping from germany...


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Unread postPosted: Sun Oct 28, 2012 10:18 am 
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canavan wrote:
Indeed, the 195MHz is the minimum for an R10k O2 to reliably capture video, according to e.g. Alexis Cousein:
http://groups.google.com/group/comp.sys ... 093dbed7b0

I think I still have a spare 195MHz CPU somewhere in a drawer, you can have it for 10 EUR plus shipping from germany...



Note that I'm not saying that the CPU is definitely the problem here, just that it's pointless to spend a lot of time troubleshooting an error on something that's known not to work anyway. He may still need to mess around with it even after upgrading.

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Unread postPosted: Sun Oct 28, 2012 11:05 am 
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A couple of years ago kshcsuf created an alternative O2 video capture app called pjcap.

No specific mentions 175Mhz O2s, but pjcap seems to have been reasonably well-received at the time. At the time it was offered was I no longer using an O2 (so I can't offer personal experience).

The original d/l links look dead - but neko attached a copy to a post (on the second page): viewtopic.php?f=16&t=16722588

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