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#apertus IRC Channel Logs

2015/10/05

Timezone: UTC


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fsteinel
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02:53
antiatom
Do the Axiom cameras use Open CERN hardware license?
02:58
Bertl_zZ
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02:58
Bertl
back now ..
02:58
Bertl
antiatom: the hardware is OHL v1.1 or v1.2, yes
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intracube
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se6astian|away
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06:51
se6astian
good morning
07:12
Bertl
morning se6astian!
07:25
Bertl
off for a nap ... bbl
07:25
Bertl
changed nick to: Bertl_zZ
08:39
irieger
mithro: Yeah, I had a look at the Opsis board campaign the other day but was sad that it's only low res HDMI (not even 1080p) and Display Port which is pretty useless
08:40
mithro
The DisplayPort is dual mode so you can connect HDMI to it using cheap adapters
08:40
irieger
mithro Bertl_zZ : noone said my wishes are easy ones ;-)
08:40
mithro
It does 1080p30 and 720p60 on the HDMI ports
08:40
irieger
Ok. https://www.crowdsupply.com/numato-lab/opsis only lists 720p or 1024x768
08:42
irieger
I don't get what the Opsis is aiming for. For real video use SDI is the connection you want.
08:43
irieger
(I hate HDMI since on one project we killed 4-5 mini-HDMI -> HDMI adapters in a week)
08:43
mithro
SDI is too expensive
08:44
irieger
Why is it expensive? Would have thought that a simple BNC is much easier than this multi pin HDMI ports?
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cbohnens|away
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morrigan1
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jorom|away
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Bertl_zZ
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13:49
Bertl
back now ...
13:52
Bertl
mithro: what is the upper speed limit for the GTs on the opsis?
13:58
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14:04
cbohnens
Bertl: I did not follow the whole conversation, but I talked to the financial and idiological backer behind the usb2tv project, and AFAIK the limit is USBv2.0, not the transceivers
14:04
cbohnens
I might be wrong there though
14:06
cbohnens
(this was while intoxicated during cccamp in Mildenberg, so please don't quote me on that)
14:16
intracube|away
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14:18
mithro
Bertl: they run at ~3.2Gb/s each and you have 4 lanes
14:39
Bertl
so we could run 4 SDI 3G per DP port then, yes?
14:39
Bertl
i.e. four in and four out
14:56
mithro
Bertl: I guess so? I don't know much about SDI
14:59
Bertl
http://www.xilinx.com/support/documentation/application_notes/xapp1076_S6GTP_TripleRateSDI.pdf
15:02
Bertl
and a cable driver like the LMH0302/0303 might be sufficient to get SDI out (similar for SDI in)
15:10
jorom
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15:13
se6astian
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cbohnens
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niemand
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se6astian|away
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niemand
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18:05
irieger
Bertl: I hope that the 6G/12G-SDI standard will be finalized soon. By all this 4K hype in the industry it's strange it takes the SMPTE so long ...
18:06
Bertl
well, you would need to have 4x 3G SDI anyway
18:08
se6astian
6G SDI has been standardized lately I heard
18:11
irieger
Bertl: why?
18:14
irieger
se6astian: Interesting. Haven't hear anything. Blackmagic and some others have 6G/12G products on the market but they are not really working together as they aren't based on a common, finalized standard
18:14
se6astian
irieger: likely because the GTX on the opsis are limited to 3.2Gbit
18:15
irieger
Ok, in this case. But I see Quad SDI as an impractical solution for many stuff. Way too much cables. One cable makes cable management so easy
18:17
Bertl
that's why we use HDMI/DP :)
18:26
se6astian
wikipedia says SMPTE ST-2081 covers 6G-SDI: ST 2081-1 (electrical), ST 2081-2 (optical), ST 2081-10 (single-link mapping)
18:27
se6astian
2082 is then about 12G SDI
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19:00
Bertl
off for now ... bbl
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Bertl
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niemand
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21:25
se6astian
time for bed
21:25
se6astian
gnight
21:28
comradekingu
goodnight :)
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se6astian
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