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Messages - g3gg0

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1
General Help Q&A / Re: Magic Lantern Logo
« on: October 14, 2018, 08:19:24 PM »
or use inkscape. works like a charm.

2
Raw Video Postprocessing / Re: Broken MLV file
« on: September 21, 2018, 09:53:30 PM »


a) your .idx is defect - delete the .idx file before running mlv_dump
b) your mlv_dump is very old - get a recent version of mlv_dump

should look better then :)

3
General Help Q&A / Re: Unknown Block errors PLEASE HELP
« on: September 21, 2018, 06:54:08 PM »
Thanks!
@g3gg0 - No, that build doesn't work with this file:

Code: [Select]
./mlv_dump.osx -F 3 --dng M15-0904.MLV
FIX BUG #3 [active]

 MLV Dumper
-----------------

Mode of operation:
   - Input MLV file: 'M15-0904.MLV'
   - Decompressing before writing DNG
   - Enforcing 14bpp for DNG output
   - Using output path 'M15-0904_' for DNGs
   - Convert to DNG frames
   - Output into 'M15-0904_'
File M15-0904.MLV opened
File M15-0904.M00 not existing.
Processing...


Vertical stripes correction:
  1.00000  1.00290  0.99698  1.00259  0.99626  1.00102  0.99782  0.99646
Cold pixels : 0                             
Unknown Block: %%, skipping
[ERROR] Invalid block size at position 0x7dd46afe
Processed 777 video frames at 24.00 FPS (32.38 s)
Done

4
General Help Q&A / Re: Unknown Block errors PLEASE HELP
« on: September 21, 2018, 12:16:33 PM »

5
Camera Emergency Department / Re: Canon 5d Mark II Bricked?!?!
« on: August 16, 2018, 11:55:30 PM »
first of all - you never installed ML onto your camera or replaced your firmware.
ML only enables a "boot from card" flag in the camera and enables a "boot flag" on the card where ML binaries are installed.
your camera's flash doesnt contain any code from ML.

did you use a new card?
can you make a video?

6
In mlv 2.0 specifications, lens name is a optional null terminated string, so maybe option number 2 is to be preferred to avoid interference with other processing tools?

absolutely. this is my recommendation.
in MLV strings dont *have to* be null terminated as you pointed out correctly.

7
Share Your Videos / Re: Lunar Eclipse, 3K RAW and ETTR
« on: July 30, 2018, 10:39:30 AM »
cool video, i like the whole composition :)

8
Share Your Photos / Re: Mars
« on: July 29, 2018, 06:03:33 PM »
Than I export to uncompressed avi, which is 8 Bit. That´s what I stack with autostakkert.

any reason why to switch to 8 bits alreary there? i directly used TIFF files to keep most information for autostakkert

9
Share Your Photos / Re: Mars
« on: July 29, 2018, 10:32:03 AM »
Nice!
Could you share you camerasettings, please? I had the best results with ISO6400 F 1/5.6 2s on my 6D with 300mm-lens (CR2). Video was not possible.

1. MLV, 1920x1080, ISO200, 1/33, Maksutov MTO-11CA
2. mlvfs -> lightroom -> TIF (without editing)
3. ~4200 frames into autostakkert 3.0.14 to stack 60% of the images
4. used fitswork to apply a handcrafted deconvolution filter
5. applied some gamma correction

my first real try of this toolchain.

the total lunar eclipse was close to impossible to shoot properly.
had to use FPS override to 500ms exposure time to see a faint image of the moon with ISO3200.
then shot a MLV with 1000ms exposure time, but with the moon being imaged only partially (crop_rec)
but autostakkert has trouble detecting the motion properly :(

10
Share Your Photos / Re: Mars
« on: July 28, 2018, 10:43:24 PM »
didnt have much luck either.
could see the moon the last 30 minutes, but with my gear it was all too dark to capture properly.

here a 2500-image merge of the moon right after it left the umbra


11
ive just seen that there is some again fixed-length implementaition in manual_lens_info_64byte branch and manual_lens_info.

is there any tool yet that processes the ELNS block?
i still want the name to be dynamic - just like some other blocks are.

12
Share Your Photos / Re: Mars
« on: July 22, 2018, 03:04:20 PM »
this is so impressive. wow. then i might try my cassegrain and see what i can get with it.
any idea/estimation if the MTO-11CA (russentonne) is capable of getting something useful?
or is its 1000mm focal length lost hope and i do better saving the time?

13
Share Your Photos / Re: Mars
« on: July 22, 2018, 02:45:01 PM »
holy crap. this singe MLV and the resulting picture right next to it blew my mind.
didnt expect that someone could recover so much detail from such single frames...

14
Share Your Photos / Re: Mars
« on: July 20, 2018, 01:50:54 PM »
how do you compensate the atmospheric turbulences?
when i look through my maksutov mto-11ca i quickly tend to forget all ideas about shooting photos of planets.


15
Raw Video Postprocessing / Re: Debayer without interpolation?
« on: July 18, 2018, 11:07:44 AM »
as far i can understand these fragments, the idea is to
 - shoot [n] images
 - detect motion between them (optical flow)
 - overlay the raw images accordingly

if you have some motion now, due to vibration etc, different bayer pixels overlay now and you have a good estimate what R, G and B is at a specific "image" location.
wonder if it was meant to shift the sensor automatically (didnt hasselblad do this already using piezo?) or if the unsteady hands would deliver the required motion.
latter makes sense if you have motion *estimation* because with piezo you already know the motion.
we could capture "short 4-frame MLV files" like with silent picture and the post can be done on the pc, but...

*AFTER* someone has proven that it makes sense ;)

16
Hehe, it probably can't. Question. Cr2 metadata. Is that all gathered after a picture is taken? Is that also the case with mov recordings? I mean, the wb state in liveview will record mov files with awb as seen I suppose so where is that info pending before pressing record button? Aewb task as a1ex says?

i remember that i somewhen looked into this code, but hardly can remember anything.
had some stuff in the register map on wikia, but this was just the engine registers that calculated WB data.

17
i am still confused how an algorithm could reliably detect the white balance, not knowing
if the image contains a blue-ish picture on a ivory colored wall, or a window on a bright white wall where you can see the blue sky through :)

18
but doesn't it pass thorugh the user's settings which are in WBAL block?

19
did your change your camera's WB settings since then?

./mlv_dump <mlv-file> -v > out.txt

and check your log files for WBAL block, what does it say?

20
recorded 128GiB videos *with* audio on 5D3 yesterday using crop_rec_4k_mlv_snd modules.
these modules were involved:

Code: [Select]
Block: VERS
  Offset: 0x000004b0
  Number: 12
    Size: 180
    Time: 514.940000 ms
  String: 'mlv_lite built 2018-07-12 23:13:23 UTC; commit f4213dd on 2018-07-03 23:10:22 UTC by g3gg0: mlv_lite: do not write all metadata again on every single chunk '
Block: VERS
  Offset: 0x00000564
  Number: 13
    Size: 80
    Time: 522.548000 ms
  String: 'mlv_meta built 2018-07-07 21:51:13 UTC; commit (no version)'
Block: VERS
  Offset: 0x000005b4
  Number: 14
    Size: 164
    Time: 530.489000 ms
  String: 'mlv_play built 2018-06-20 18:58:21 UTC; commit 0e38b89 on 2018-06-18 22:11:42 UTC by g3gg0: mlv_play: use less RAM, proper cleanup on error '
Block: VERS
  Offset: 0x00000658
  Number: 15
    Size: 180
    Time: 536.738000 ms
  String: 'mlv_snd built 2018-07-03 22:23:18 UTC; commit 9ec9c80 on 2018-07-03 22:20:19 UTC by g3gg0: mlv_lite/mlv_snd: rewrote state machine and placed WAVI writing... '
Block: VERS
  Offset: 0x0000078c
  Number: 17
    Size: 156
    Time: 554.623000 ms
  String: 'raw_twk built 2018-04-12 13:35:36 UTC; commit 6886061 on 2017-07-01 23:55:44 UTC by g3gg0: raw_twk: rework to support 16bpp input data '

mlv_meta is not public yet, used to count up take number in INFO blocks etc

21
100fps recording on a 6d with Magic Lantern, put on a 25fps timeline  8)

wow!
finally :D

22
1. First of all, thanks g3gg0 for 2018-06-26 23:36 build: sound is great, imports to DR automatically in sync.
I didn't shoot anything with sound with mlv_lite before, so i'm unsure, is it fixed, or simply works.
But, need to say, i didn't even used last mlv_dump, but "mlv_dump on steroids".
It has feature to analyse every frame for stripes.

you are welcome.
for DR i use MLVFS which works smooth in all situations i had so far.
saves a lot of time and space

23
And yes, 1/4000 is hardcoded in the code you have pasted (250e-6; don't remember why I wrote it like that; 1.0 / 4000 would have been the same).
250u, thats the scientist in you ;)

24
General Help Q&A / Re: What is Trace Output?
« on: June 27, 2018, 10:16:06 PM »
this is a debugging option, being removed when things are clearly ready for end user :)

25
With the g3gg0 builds, the errors stopped, though sound is still broken. If sacrificing mlv_rec is the only way to get mlv_snd integration with mlv_lite, I'm ok with that. Maybe a memorial is in order? (^^)

to be correct, crop_rec_4k_mlv_snd *is* the branch i started initially 17 months ago.
its goal was to make mlv_snd integrate nicely into mlv_lite, so mlv_rec can get dropped.
it just wasnt finished and certainly still is not.

so there are no "g3gg0 builds" or anything else.
the memorial is "MLV" ;)


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