#apertus IRC Channel Logs

it uses altera chip

maybe it's possible

459 euros + tax

or is that the version with 4 inputs?

it's can be 4 too

well, it might work as is, if it can do raw recording

yes, and linux is not supported

is there somebody, who is on this, i mean developing custom capture card?

i see

i mean with ffmpeg maybe the raw data could be captured without any loss

directshow sounds like windows to me

I have no idea about windows solutions/options

linux would be much more better.... eh

that custom capture card should be developed

i go

off to bed now ... have a good one everyone!

hi

i found something "new" about that that capture card, it has linux driver too :)

something like this

there are several good options for MLV -> CDNG

morning

what level of raw? 0: not raw, everything changed to yuv, 1: raw, active video only data, 2: rawraw: full frame with data in blanking (ehm, in hdmi rather data from data islands), also there are other constraints: A) support of only CEA resolutions, B) support of ANY resolution

good morning :)

blackmagic SDI = 1A, supplies only active video + parsed audio

there are 12 bit modes in SDI, the situation with deltacast is that it needs to run in RAW capture and you can parse it yourself

yeah, HDMI seems to be problematic regarding deep color, although some devices claim to support it (at least in future versions :)

also, with my experience with hdmi chips - they do change the bitstream, so you probably never get RAW out of it

(look at ug180 revB for ADV7611, p112-113)

by defalut setup it does ugly things, i were developing display interfaces with that chip

in SDI it is better defined, and probably the cards respect bit to bit copies

good point

SDI does per line CRC?

here are the capture card what i found till now: http://www.magewell.com/hardware/sdi-cards/xi400de-sdi/xi400de-sdi_specifications.html?lang=en

hdmi: http://www.magewell.com/hardware/hdmi-cards/xi400de-hdmi/xi400de-hdmi_specifications.html?lang=en

i don't understand what you ask

he would like to know details you probably don't have about the card :)

Bertl: i just asked, what do you think?

well, what is the price for the 4 port sdi/hdmi card?

sebastian closed T169: lsm.apertus.org down as "Resolved". http://lab.apertus.org/T169

okay, that probably is in the same range as the BM cards

Bertl: do not forget to support CEC or HEC for controlling the camera from the recorder

good idea

troy_s: how so?

A) Full size BNC connectors with lock vs Junk

Connectors are the big one.

Just saying..

It is technological and usage based

okay, so the argument is: because SDI commonly uses BNC and you normally don't find HDMI on in field cameras, it must be "better" yes?

It isn't all this mythical "could" "if" "could"

It is "can" "does" "is" "proven over time"

I am doing my best

it would be much more productive if you said (for example):

SDI has proven to be a good choice for in field because ...

This has been covered dozens of times in here

With practical real-world experience

So yes. SDI is more robust in terms of cabling (according to just about every in field tech I have ever spoken with), transmission distance,

(And flange supports etc.)

(Same for HDMI)

so, speaking from an eco system PoV

how is that handled on 4k raw cameras/recorder?

Bertl: Alexa has a built in codex system currently

And R3D uses their proprietary cards as does Sony

so the question remains, how do those systems transfer raw 4k over SDI?

Not certain. Blackmagic rolls Decklinks

Dual link 12g SDI?

so I doubt there is an eco system around it

There is

Again, the ecosystem tends to evolve around the company that delivers it relatively robustly first

A) you only find SDI on cameras

Older days had a larger codex toaster with large umbilical cord

Yes, with SDI being more and more viable via Blackmagic-like devices I believe

(And I am not certain, but the Alexa M has an umbilical cord, possibly proprietary?)

for raw, most 4k cameras are fine with 2x 3G SDI, (canon C500, arri alexa)

BM makes 6G, for 4k yuv 30p (=4x 1.5G payload), now jumping to 12G for 60fps yuv

are the firmmware of the BM cards upgradeable?

:)

funny enough, for dual cards they have that circuit twice there too :)

off for a nap ... bbl

danieel: Do you use two actual connectors to deliver the signal?

yes, i use a pair of cables

danieel: Does yours roll to a DeckLink?

same situation as with canon raw / arriraw

Because you could get 1:1 in /out if it were.

Apparently there is an RGB mode

Should be plausible though if it transmitted non-mangled RGB

it is usually transmitted log (canon, arri), i did linear as it was simpler and keeps all codes out of sensor

Sorry

Could be log or whatever you want

it is not.. so what are your worries?

canon/arri push the 14/16 bits into 10/12bit by log mapping.. (probably they use the limited 10 bits), i transfer bit perfect copy of 12 bit data

good night!