[Yves De muyter]

Maybe you need something like this?

https://www.alfavisio.be/products/decklink.php

It support Quicktime and AVI and some mpeg codecs.

-Yves

[Yves De muyter]

You can crash-record using Deck Control.

-Yves

[Yves De muyter]

https://en.wikipedia.org/wiki/Image:PCIExpress.jpg

This is an illustration of the different connectors. The bottom one is a “regular” 32-bit PCI slot. A PCIx is not shown, but it is an extension of the 32-bit PCI slot (see https://en.wikipedia.org/wiki/Image:Intelpromtserverpcixadapter1000mta342.jpg for a real 64-bit PCIx connector). Please note that not all Decklink cards feature a full-size PCIx connector, somethimes they’ve shortened it to a regular PCI connector like shown here:
https://nl.wikipedia.org/wiki/Afbeelding:Audigy2zs.jpg

That does not mean it will work correctly in a 32-bit PCI slot though! It will sort-of-work with a lot of black flashes on the decklink output and recording only for a couple of seconds until it stops with far too many framedrops.

-Yves

[Yves De muyter]

Length of the part of the card that fits into the slot. PCIe is something like 1 inch, PCIx is approx 5 times longer.

-Yves

[Yves De muyter]

Kristian,

How do you define “lack of interest from customers” if there is no driver yet?

Please understand: linux users are not on Creative Cow, they have their own world on internet. Go and ask Gstreamer.net, v4linux2, cinelerra mailinglist or even the BBC R&D guys about Linux in the broadcast.
Of course, some of the demand had been fulfilled by AJA, DVS and Deltacast. All 3 of them need to sign an NDA to get to the SDK (I signed the DVS NDA and about to sign the deltacast NDA as I did not find a perfect board yet).

-Yves

[Yves De muyter]

I’m not really familiar with AJA boards since they don’t let me have the SDK: you need to sell at least some 100 boards a year before they let you have the SDK, made me angry because that is completely unrealistic here in Belgium, furthermore I’m sure Spectsoft does not have such turnover so I guess it must be more of a corporate politics thing. For that matter, BMD is much more honest to say that they think the cost of a Linux driver is too high.

Does Smoke use the regular video4linux interfaces or have they implemented it directly on top of the custom AJA driver?

-Yves

[Yves De muyter]

And which application do you intend to use? Cinelerra, kino, pitivi?

-Yves

[Yves De muyter]

We need enough people to make some noise to get Linux drivers.

I’m really sure Linux drivers would be profitable for BMD but they need some more people requesting it. I understand that he Linux community is not at all on Creative Cow but elsewhere.

There is also a question about what we, Linux user want in the first place. Do we basically do video IO or do we mostly do keying?

For video IO a video4linux2 interface would be good enough, other people (like https://www.gstreamer.net will do all the userlevel library/applications) but this interface does not do any keying…
For keying they might look at hauppauge’s PVR350 ivtv interface for how you can do it?

-Yves

[Yves De muyter]

In the control panel, you can configure to play black on the output to sync a VTR. You should disable that or put it on the other output (SDI or analog).

-Yves

[Yves De muyter]

This is correct. The only thing we need to do is to pull down the master volume of Premiere down with about 9db (could be 6, I’m not really sure anymore since it has been a while since I’ve been on a Premiere system. Also mono and stereo are different).

-Yves