Monday, 2016-09-19

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xfxfmithro: i'm guessing you recorded the video in this talk, i can see a disassembled opsis at the start?
tpbTitle: Gorgonia: a library like Theano or TensorFlow, mainly written in Go | Hacker News (at
xfxfalso the 15 fps thing was a firmware bug i had ages back, i thought that was fixed?03:10
mithroxfxf: That was running the shipping firmware, didn't have time to flash with something newer03:37
xfxfah, that explains the 15fps thing03:39
xfxfalso,the lack of artifacts - the shipping firmwares doesn't suffer from that?03:40
xfxfif so, hopefully that makes tracking down the actual cause easier03:41
mithroxfxf: It does03:41
mithroxfxf: It does suffer from the artifacts, if I had multiple outputs enabled it was worse03:42
xfxfhmm, I'm sure with the firmware we used at pycon, even two inputs, encoder, both outputs off was way worse than what I see in that vid03:47
xfxfbut I'd need to check03:47
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xfxfoh hang, i was testing it with one output enabled too.  that'd explain the difference04:08
CarlFKstart of what?04:09
xfxfvideo linked from the page above04:26
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tpbTitle: Mikrotik RouterBoard - Fully Assembled Systems - online catalogue for MIKROTIK products - - CRS210-8G-2S+IN: 8 port Desktop Switch with 10gbps fibre support (at
CarlFKxfxf: I see no links to videos on
tpbTitle: Gorgonia: a library like Theano or TensorFlow, mainly written in Go | Hacker News (at
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xfxfCarlFK: click on the actual story, it's in there?05:56
CarlFKmithro: neat.05:56
CarlFKxfxf: heck if I know05:56
CarlFKim sure if I follow enough links I will come to something ;)05:57
mithroCarlFK: You can get yourself a 10G network card05:57
xfxfmithro: have you actually used that switch?05:57
xfxfmithro: microtik gear can be.... interesting05:57
mithroNope, but it has evil_steve recommendation05:57
xfxfhe's using microtik in production at universities?  that genuinely surprises me05:57
mithroxfxf: Probably not, but for the price point he said it was probably an okay buy05:58
CarlFKdo we need 10G?  (or is this for my 2017 UN thing?)05:59
xfxfi've decided against buying any 10G gear now, i'm going to experiment with LACP bonded gigabit first06:00
xfxfi doubt i'd ever need more than 2-3G, and it's always going to/from seperate machines, so mac based lacp should in theory be perfectly fine06:00
xfxfCarlFK: i think he's talking if we want more than 2-3 uncompressed audio/video ingests06:01
CarlFKah, yeah, I don't need that any time soon.  I hope.06:02
mithroxfxf: When we get Opsis Ethernet working, that is going to be ~800Mbps06:04
xfxfmithro: why would uncompressed video over the Opsis ethernet be more than now?06:04
mithroxfxf: I'm unsure why the current value is so low06:04
CarlFKmithro: what makes you think it will be ~800Mbps?06:05
xfxfmithro: isn't the current rate higher than what it could be, due to us doing full 24-bit color depth or whatever?06:06
mithroCarlFK: actual calculations06:06
CarlFKmithro: show your work ;)06:08
CarlFKexcept I want to compare it to what gs is doing, and that's probably not something I should try06:09
rohitksingh_workmithro: ping06:21
mithrorohitksingh_work: pong06:21
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CarlFKmithro: do you expect the Opsis to be able to connect to vocto core, or would we run a gst pipeline to hook the two together?06:33
mithroCarlFK: Probably a pipeline unless there are some changes to voctocore to support it06:34
mithroThe pipeline should be pretty simple though06:37
CarlFKmithro: that also means the pipeline can decompress07:04
mithroCarlFK: The frames from the Opsis are uncompressed07:04
CarlFKmithro: I am guessing the mjpeg compression could be applied07:06
mithroSure I guess07:06
mithroWe should be able to just do two streams at 30fps07:06
CarlFKmithro: like one for each input?07:07
mithroCarlFK: yes07:07
mithroOh - that is probably the reason - 30fps verse 60fps07:08
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