Getting RAW Video

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Re: Getting RAW Video

Postby nikkor » Sat Apr 25, 2015 5:41 am

Well that certainly looks like a bayer pattern.
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Re: Getting RAW Video

Postby leegong » Sat Apr 25, 2015 6:02 am

@nikkor , i just convert the MV defect into PNG , it's more interesting to zoom in 500% in PhotoShop .
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Re: Getting RAW Video

Postby nikkor » Sat Apr 25, 2015 6:48 am

I can see dead pixels after playing with curves in PS^^
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Re: Getting RAW Video

Postby leegong » Sat Apr 25, 2015 9:12 am

Ok , the most important core step for LV RAW hacking is coming :
just got chip4000 and chip6700 registers dumping for photo , photo defect and MV defect shooting ,
photo and photo defect shoot 4992 x 3280 RAW and write it into RAM memory ,
MV defect shoots 1664 x1100 RAW and writes it into RAM
,
normal Liveview shoots LV RAW (i think it's 1164 x 1100 which is same as MV defect RAW) but doesn't write it into RAM ,
just send it to chip4001 directly .
so we have to find out the difference of chip settings between these shooting modes ,
then modify setting of normal LV so that LV RAW is written into RAM ,if this step is successful , it will be very easy
to get LV RAW .
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Re: Getting RAW Video

Postby leegong » Sat Apr 25, 2015 10:29 pm

After a quick simple comparision , i'm almost sure that MV defect is a little different from LV stream mode ,
MV defect RAW bit depth is 8 bits , LV stream RAW bit depth is 10bits or 12bits , i think it's 12bits ,
i'm sorry i made a mistake saying MV defect had same setting as that of LV stream , there must be sth different ,
which indicates 8bits or 12bits , so we have chance to get 12bits LV RAW , even 10bits LV RAW is great .
Good news ? !
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Re: Getting RAW Video

Postby Sandco » Sat Apr 25, 2015 11:44 pm

That's great news! Thanks for all the hard work you have been doing and keeping us updated on this project :text-thankyoublue: :clap:
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Re: Getting RAW Video

Postby leegong » Tue Apr 28, 2015 7:07 am

Just import chip4000 dumping into Excel , i believe that LV RAW bit depth is 12bits .,
see the screenshot , MV defect is 8bits RAW , Photo defect is 14bits raw , Photo is 12bits raw , which were
confirmed , so according to 0x9C0 = decimal 2496 bytes = 1664 bytes * 1.5 , meaning 12bits for LV RAW .
Same adjustment curve is found for MV defect and LV stream .
Attachments
registers_comparision.png
registers_comparision.png (6.59 KiB) Viewed 6766 times
LV_curve.png
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Re : Getting RAW Video

Postby leegong » Fri May 01, 2015 1:20 am

Got it , D5100 1664 x 1100 12 bits RAW video frame .
Attachments
LV__new0.rar
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LV__0000.rar
(1.55 MiB) Downloaded 195 times
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Re: Getting RAW Video

Postby Fred » Fri May 01, 2015 2:58 am

You, Sir, are a genius! :-)
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Re: Getting RAW Video

Postby stvnms » Fri May 01, 2015 7:49 am

Thanks again! I know all this great effort has been developed with a D5100 but if you need to do some testing on a D3200 I could help.
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