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04:25 | Bertl | off to bed now ... have a good one everyone!
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04:25 | Bertl | changed nick to: Bertl_zZ
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07:41 | se6astian | good day
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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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11:35 | vup | good morning :)
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16:00 | se6astian | MEETING TIME
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16:00 | se6astian | who is here?
| 16:01 | Bertl | is here ...
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16:02 | se6astian | seems we will be quick today again :)
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16:02 | se6astian | any news Bertl ?
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16:02 | Bertl | not really
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16:02 | se6astian | right
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16:02 | se6astian | so quick updates from me:
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16:02 | se6astian | new rubber feet from manfred arrived: https://twitter.com/ApertusOSCinema/status/1472557170701094918
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16:03 | se6astian | new recorder enclosure 3d print parts (we are at version 0.2 ) have been produced and I am putting the recorder together to test as we speak
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16:03 | se6astian | recorded the CCC talk last week together with Max
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16:03 | se6astian | and he is in full swing editing already
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16:03 | se6astian | as the deadline to submit it is today
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16:04 | se6astian | with all the inserts to add we might not make it but 1 or 2 days shall not be an issue hopefully
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16:04 | cscar | joined the channel | |
16:04 | se6astian | anuejn completed new additions to the axiom recorder to do realtime debayering of A+B frames from HDMI stream
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16:05 | se6astian | so thats what I am getting ready to test currently
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16:05 | se6astian | directly on the lattepanda recorder hardware
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16:06 | se6astian | had a chat with vup/anuejn yesterday about workflow decision and the plan now is to apply darkframe, dcnu frame, gainframe in realtime in the recorder before displaying/saving the raw footage
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16:06 | se6astian | directly in dng then though
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16:07 | se6astian | there is still the question if one would like to save the "pure raw" footage before the corrections
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16:07 | se6astian | what we have in raw12 currently basically
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16:07 | Bertl | I'd definitely opt for keeping raw data
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16:08 | se6astian | well dng is also raw :)
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16:08 | se6astian | I guess the user will have the choice in the end
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16:08 | Bertl | any noise correction could potentially be done in a better way if there is more cpu power available
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16:09 | Bertl | so we should not do any correction which can not easily be undone
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16:09 | se6astian | as the axiom recorder can already read raw12 sequences now so it would be possible to apply the corrections later (not from hdmi source but filesource) as well
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16:10 | Bertl | note: it's perfectly fine to do any corrections on-the-fly for visualization and we can even do them in the stored 'raw' data if the process is reversible
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16:11 | se6astian | there was also the question if the raw12-viewer is obsolete now and I concluded that the axiom-recorder has a slightly different goal so I/BAndiT1983_ will continue working on it
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16:11 | se6astian | Bertl: agreed
| 16:11 | vup | is a bit late
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16:12 | vup | Bertl: for these simple corrections it should also be pretty doable to just save a bit of extra data and make it reversible
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16:12 | se6astian | vup: we discussed yesterday if the corrections are reversible but concluded: "not entirely" right?
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16:12 | vup | maybe that could also be a option
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16:13 | vup | se6astian: well only darkframe, dcnu frame and gainframe should be reversible (apart from maybe rounding errors)
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16:13 | se6astian | even better
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16:14 | vup | more interesting is the dark column based row noise filtering, but worst case I think we just need to save 2xheight extra values to make it reversible
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16:16 | se6astian | I think thats it from my side
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16:16 | vup | (very important in making it reversible is of course using the same *frames to undo the correction, but we probably can just save a checksum of them or something like that to catch mismatches)
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16:17 | se6astian | saving darkframe/dcnu/gainframe with the footage would sound like a sane idea
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16:17 | vup | maybe saving them on the camera? So you can not easily loose them
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16:18 | vup | (and they are probably to some extend camera specific, so you need to match them to the right camera anyways)
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16:18 | se6astian | true
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16:20 | se6astian | anuejn: it works! realtime raw playback is running on the lattepanda
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16:20 | vup | (Bertl: also yes in general I completely agree with you about only doing corrections we can (easily) reverse if we only save a corrected image)
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16:21 | se6astian | motion creates weird block effects though, maybe from downscaling
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16:21 | se6astian | is that expected?
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16:22 | vup | Hmm block effects? when anuejn and I tried it last time it looked fine, but there some color artifacts which looked like the wrong frames were getting combined
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16:22 | se6astian | will take picture
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16:23 | vup | oh with the newest version you can also save dngs (but now while viewing the preview), so would be interesting to check if they are present there aswell
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16:23 | se6astian | cool
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16:23 | se6astian | will test
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16:23 | vup | unfortunately I think the color filter array is not configured correctly in the dngs currently
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16:23 | se6astian | what is the syntax?
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16:24 | vup | well anuejn did not push the changes :(
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16:25 | se6astian | ah
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16:25 | se6astian | right
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16:25 | vup | (just noticed it)
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16:26 | se6astian | https://cloud.apertus.org/index.php/apps/gallery/s/bMYjZA5QgqL7w9f
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16:26 | se6astian | last image is moving hand
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16:26 | vup | that looks interesting
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16:26 | Bertl | that's nice ;)
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16:27 | se6astian | you noticed the penguin immediately didnt you? :D
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16:27 | vup | I don't think that has anything to do with the downscaling
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16:27 | se6astian | debayering?
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16:28 | Bertl | the downscaling could be responsible for the pattern
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16:28 | Bertl | but the color effect seems to be motion related
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16:30 | Bertl | as it seems to be blue-green vs red-green, mismatched frames could be the reason
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16:31 | vup | oh yeah se6astian: do you get any output on stdout?
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16:31 | se6astian | yes, but nothing that looks like an error
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16:31 | vup | (it should print a message if it detects a mismatched / dropped frame)
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16:32 | vup | hmm
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16:32 | se6astian | using gpu: intel...
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16:32 | se6astian | mesa-intel warning: performance support disabled...
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16:32 | se6astian | it did report 2 slipped frames
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16:33 | se6astian | but not related to the motion artifacts
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16:33 | se6astian | but I noticed similar artifacts on the raw12 sequences recorded when played back with the axiom recorder
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16:33 | se6astian | when there was motion
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16:33 | vup | oh interesting
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16:33 | se6astian | should I capture a video
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16:34 | vup | when we tested it on saturday we also had some motion related color artifacts, but they looked a bit different, but until those are fixed, I would just assume its the same artifact you are seeing
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16:34 | se6astian | my screen is rather low resolution
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16:34 | se6astian | they appear much finer and less severe when the screen is fullhd like the material
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16:35 | se6astian | so that maybe explains the differences to what you are seeing
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16:35 | se6astian | this lcd is 1024x600 IIRC
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16:35 | se6astian | anyway, anyone else who wants to report/share something at the meeting?
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16:35 | vup | yeah maybe, we can try with screen scaling and see what happens
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16:36 | vup | sure I can quickly report some bits
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16:36 | vup | So I finally did the finishing touches on https://github.com/apertus-open-source-cinema/pcbs
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16:36 | vup | its now live at https://apertus-open-source-cinema.github.io/pcbs/
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16:37 | vup | atm it just generates the preview images, the gerbers and pdf version of the schematics
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16:37 | se6astian | nicely done, forgot to mention I added the link to many pcb related wiki pages already: https://wiki.apertus.org/index.php/Special:RecentChanges
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16:37 | vup | nice
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16:37 | se6astian | and updated our OUI PR request accordngly
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16:38 | se6astian | https://github.com/openmoko/openmoko-usb-oui/pull/37
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16:38 | vup | if anybody thinks it would be interesting, one could also add a interactive boardview / bom thingy like this: https://files.niemo.de/axiom_beta_main_board_v0.38_r1.2_ibom_eagle.html
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16:39 | se6astian | yes!
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16:39 | vup | ok :)
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16:39 | se6astian | does the conversion work automatically or did you have to drag it through kicad manually?
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16:39 | se6astian | its beautiful!
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16:39 | vup | the one I linked can be generated using a ulp script from eagle
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16:40 | se6astian | great
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16:40 | se6astian | would be a nice addition to the pcb page IMO
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16:40 | vup | sure should not be hard to add
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16:40 | vup | to add a new board one should just need to drop a `.brd` and a `.sch` into this folder: https://github.com/apertus-open-source-cinema/pcbs/tree/main/boards
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16:40 | cscar | I'm off to the groceries. I'll read the rest when I'm back. Great progress! See you all later!
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16:40 | vup | (best with accompanying .license files)
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16:41 | vup | and if the naming scheme of the other pcbs is followed it should work out nicely
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16:41 | vup | thats it from me
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16:43 | se6astian | many thanks
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16:43 | se6astian | right then, off to dinner as well
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16:43 | se6astian | MEETING CONCLUDED
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16:43 | se6astian | many thanks everyone!
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16:53 | Bertl | changed nick to: Bertl_oO
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17:31 | anuejn | hey, changes for dng recording are pushed
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17:31 | anuejn | tho it is not really stable at the moment
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17:53 | se6astian | cool
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