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| 01:29 | Bertl | off to bed now ... have a good one everyone!
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| 11:34 | Bertl_zZ | changed nick to: Bertl
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| 11:34 | Bertl | morning folks!
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| 11:55 | davidak | good morning Bertl
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| 11:56 | Bertl | hey davidak! how's going?
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| 11:57 | davidak | good and you?
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| 11:58 | Bertl | fine, thanks! I'm almost finished with the first set of Beta boards for testing, i.e. the Sensor Board, a dummy Interface Board and a Test Beta Board
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| 11:58 | Bertl | will be up for review shortly
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| 11:59 | davidak | great :)
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| 12:01 | Bertl | what's up on your end?
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| 12:02 | davidak | i'm at work. migrating servers to paravirtualization on our xen-servers ;)
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| 12:02 | Bertl | windows machines I presume?
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| 12:02 | davidak | no, ubuntu server
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| 12:03 | Bertl | why xen then?
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| 12:03 | davidak | because it's mature
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| 12:03 | davidak | i have not decided it
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| 12:04 | davidak | i would use KVM :D
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| 12:04 | Bertl | well, kvm is solid, but I still wouldn't use kvm either
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| 12:04 | davidak | maybe we switch in the next years
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| 12:04 | davidak | what else?
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| 12:04 | Bertl | by using a full virtualization technology like kvm/xen, you lose a lot of performance because you have to virtualize the entire kernel
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| 12:05 | davidak | yes
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| 12:05 | Bertl | using isolation technologies is much more efficient
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| 12:05 | Bertl | I've been using Linux-VServer for more than 15 years now to do that
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| 12:06 | Bertl | recently mainline LXC steps up to do similar
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| 12:07 | Bertl | nah, I lied, only 14 years :)
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| 12:07 | davidak | :D
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| 12:07 | davidak | long enough
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| 12:08 | Bertl | basically a container solution allows you to run separated guest environment on the same kernel
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| 12:08 | Bertl | which gives you a lot less overhead, way better performance and scalability and less stuff to maintain
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| 12:10 | davidak | we have 8 hypervisors and about 150 VMs. also different versions of ubuntu (8.04, 10.04, 12.04, 14.04) some IPFires abs 1-2 windows servers
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| 12:11 | davidak | we use XenCenter to manage them
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| 12:12 | davidak | live migration is important
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| 12:12 | Bertl | for maintainance purposes?
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| 12:12 | davidak | yes
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| 12:12 | davidak | update a hypervisor
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| 12:13 | Bertl | you can have your cake and eat it, just put the container system in a single xen environment
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| 12:14 | Bertl | you can then easily migrate all the containers for maintenance and still have 100 guest systems on a single machine
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| 12:16 | Bertl | anyway, not my business, just saying ...
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| 12:21 | philippej | joined the channel |
| 12:21 | Bertl | wb philippej!
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| 12:21 | philippej | Hello !
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| 12:22 | philippej | how goes?
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| 12:22 | Bertl | great! almost done with the first Beta set
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| 12:22 | Bertl | (design for sensor, interface and test board)
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| 12:25 | philippej | cool !
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| 12:26 | philippej | pcb already ordered?
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| 12:32 | Bertl | no, design almost finished
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| 12:32 | Bertl | I'll put it up for review today, and if we don't spot any issues, we'll order tomorrow
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| 12:34 | davidak | are there people who can review it?
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| 12:34 | Bertl | yes, I'd say so
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| 12:35 | davidak | good
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| 12:38 | mars_ | and we will! :)
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| 12:40 | philippej | The apertus soldiers slowly wake up from their cave
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| 12:41 | mars_ | and it's my first day in 2 weeks where i have the time to do something for apertus...
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| 12:42 | philippej | Perfect timing, soldier ! :-)
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| 12:50 | Bertl | we are not at war here ...
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| 12:50 | philippej | I guess I drunk to much cofee
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| 14:46 | Bertl | okay, here we go ...
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| 14:47 | Bertl | http://vserver.13thfloor.at/Stuff/AXIOM/BETA/axiom_beta_board_100_v0.7_test.pdf
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| 14:47 | Bertl | http://vserver.13thfloor.at/Stuff/AXIOM/BETA/axiom_beta_interface_dummy_v0.7.pdf
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| 14:47 | Bertl | http://vserver.13thfloor.at/Stuff/AXIOM/BETA/axiom_beta_sensor_cmv12000_v0.12.pdf
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| 14:47 | Bertl | http://vserver.13thfloor.at/Stuff/AXIOM/BETA/axiom_beta_sensor_cmv12000_v0.12_zif.pdf
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| 14:49 | Bertl | Eagle schematic and board files are at the same location, same basename
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| 14:49 | Bertl | the dummy interface board is not smoothed yet, but all connections are there
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| 14:50 | Bertl | I'll also do some layer images for each of them
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| 14:50 | Bertl | (but first something to eat :)
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| 14:50 | davidak | you are also eating late? :d
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| 14:51 | Bertl | especially important is that all connections are properly routed through all three boards, so please double and triple check that
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| 14:51 | davidak | i had just lunch
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| 14:53 | Bertl | I basically eat when I'm hungry and I've got some time
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| 14:55 | davidak | yes, me too
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| 15:33 | se6astian|away | changed nick to: se6astian
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| 15:36 | Bertl | evening se6astian!
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| 15:36 | se6astian | good evening
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| 15:37 | se6astian | the ergonomics are coming!
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| 15:41 | se6astian | we are holding our local ergonomics work group meeting in 80 minutes
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| 15:48 | Bertl | please discuss if we should have beveled or round corners on the sensor/interface PCBs
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| 16:15 | troy_s | se6astian: Explain?
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| 16:16 | troy_s | Bertl: How many peeps in here can discuss that low level stuffs out of curiosity? danieel for certain. Who else?
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| 16:17 | Bertl | mars_ for example and we also got a bunch of electrical engineering folks, who should be able to do that as well
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| 16:17 | Bertl | but certain things can even be checked by somebody who knows almost nothing about those things
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| 16:17 | Bertl | (for example, continuity across the boards)
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| 16:36 | Bertl | wb designbybeck!
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| 16:36 | designbybeck | greetings
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| 16:39 | Bertl | so what did "beck" design recently?
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| 16:42 | se6astian | beveled our round corners on the sensor PCB, how is it relevant? :)
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| 16:42 | Bertl | for ergonomics?
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| 16:42 | se6astian | yes
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| 16:43 | se6astian | troy_s: quite simple: a bunch of team members meet in person and discuss designs/models/ideas/concepts
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| 16:43 | Bertl | well, might simplify attaching the case or prevent scratches or just look more stylish?
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| 16:43 | se6astian | we meet every week and everybody gets certain tasks/areas of work assigned
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| 16:43 | se6astian | I see :)
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| 16:43 | se6astian | well then we will of course discuss it :)
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| 16:44 | Bertl | excellent! that way my work doesn't seem so unimportant :)
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| 16:45 | se6astian | we will likely more intensively discuss this idea to extend the shields to the bottom and place connectors there
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| 16:46 | Bertl | excellent as well!
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| 16:46 | troy_s | se6astian: Who all ends up going?
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| 16:47 | se6astian | so far 5 people are expected today: 2 dops, one precision engineer and one industrial designer plus me
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| 16:48 | davidak | are all from apertus or is it a general meeting?
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| 16:51 | troy_s | se6astian: I'd suggest that getting a 1st AD or two is more important on that front than a DoP. (Yes, I just said that.)
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| 16:51 | troy_s | se6astian: Experienced 1st AC
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| 16:51 | troy_s | (not AD. mistyped)
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| 16:51 | troy_s | (derp)
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| 16:52 | Bertl | I guess you can send/bring one :)
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| 16:52 | troy_s | No I can't.
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| 16:52 | se6astian | if you know any 1st AC in Vienna who would be interested in participanting next week let me know
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| 16:52 | troy_s | I wish I did.
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| 16:52 | troy_s | UK maybe, but not Vienna.
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| 16:52 | Bertl | I'm disappointed! :)
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| 16:53 | troy_s | Isn't Vienna next to Moscow?
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| 16:53 | se6astian | davidak: its about the AXIOM so all people participating are automatically from apertus° :)
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| 16:53 | Bertl | troy_s: not relaly
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| 16:53 | Bertl | *really
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| 16:53 | se6astian | yes moscow is just around the corner :)
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| 16:53 | troy_s | All joking aside, an AC will have the eyes to spot glaring omissions or details that many eyes may not.
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| 16:54 | troy_s | Bertl: Right. I meant Shanghai.
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| 16:55 | troy_s | se6astian: Are there updated wireframes or renders available?
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| 16:56 | se6astian | https://wiki.apertus.org/index.php?title=AXIOM_Beta#AXIOM_Beta_PCB_Stack_Concept
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| 16:58 | troy_s | Gah. All boards still? Sorry. I'm a dimwit. I (erroneously) assumed it was heading to housing discussions.
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| 16:58 | troy_s | is a complete idiot.
| | 16:58 | troy_s | Apologies.
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| 16:59 | troy_s | Bertl: What does the 4x4 matrix bring to the table? Offsets?
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| 16:59 | Bertl | in the Alpha design?
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| 16:59 | troy_s | Bertl: Yes.
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| 16:59 | Bertl | we basically handled the bayer channels there
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| 17:00 | Bertl | i.e RG/GB
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| 17:00 | troy_s | In a 4x4 matrix???
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| 17:00 | Bertl | yup
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| 17:00 | troy_s | How the hell.
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| 17:00 | Bertl | ah, that's rather simple math :)
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| 17:00 | troy_s | A LERP obviously?
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| 17:01 | troy_s | Can you link me to a bit of example?
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| 17:01 | troy_s | Very interested in that.
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| 17:01 | troy_s | (Probably obvious stuff, but I had no clue.)
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| 17:01 | Bertl | math, code or fpga implementation?
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| 17:02 | troy_s | I'd hope that the 3D LUT makes a landing at the beginning. No way to really profile a sensor well without it.
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| 17:02 | troy_s | Math?
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| 17:02 | troy_s | Or code.
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| 17:02 | troy_s | Bertl: Am I correct in assuming that the byproduct of a 4x4 matrix debayer is lerp?
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| 17:03 | Bertl | https://wiki.apertus.org/index.php?title=Axiom_Alpha_Software
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| 17:03 | Bertl | can be, doesn't need to be
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| 17:04 | troy_s | Oh. Head explosion.
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| 17:04 | troy_s | So you could bury a cubic in a 4x4 matrix?
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| 17:05 | Bertl | no, only linear relations between the channels, no quadratic or cubic interpolations
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| 17:05 | Bertl | it was more a simplification from the fpga side than a 'feature' actually
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| 17:06 | Bertl | the 3x3->4x4 extension is right above the LUTs section
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| 17:06 | troy_s | So how exactly does a 4x4 matrix debayer? It takes a row or column or what as an entry? (Sorry for being completely idiot)
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| 17:06 | Bertl | it doesn't debayer at all
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| 17:07 | troy_s | Good. So I'm not losing my mind.
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| 17:07 | troy_s | So all of the profiling happens at the Bayer level?
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| 17:08 | Bertl | yes
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| 18:38 | philippej | hi again everyone !
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| 18:39 | Bertl | wb philippej!
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| 18:40 | philippej | wishes we'll see some summaries of se6astian's ergonomic group
| | 18:40 | philippej | documenting is such a tedious task...
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| 18:41 | Bertl | indeed
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| 18:43 | troy_s | FFMPEG is in OIIO.
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| 18:43 | troy_s | That's rather... huge.
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| 18:43 | troy_s | https://github.com/OpenImageIO/oiio/pull/928
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| 18:46 | Bertl | but makes sense
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| 19:47 | dmjnova | hi Bertl
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| 20:08 | Bertl | hey dmjnova!
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| 20:12 | Bertl | off for a nap ... bbl
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| 22:28 | Bertl | back now ...
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| 22:58 | Bertl | wb mooseboobs!
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| 22:59 | mooseboobs | lol thanks Bertl
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