[AG-TECH] AG3.2 Bundle - Blackmagic Card Support

[Douglas Kosovic]

I meant select HDMI and 1080i59.9 or whatever the input port and signals
are in the HD node service configuration, rather than in VIC.

The Blackmagic DirectShow device which doesn't have 'Blackmagic-" as the
prefix in the device name won't work as the only signals listed are PAL
and NTSC, so gets limited to those resolutions and thus has a black
screen. There was little point in getting VIC's DirectShow grabber to
work as it was up to 5 fps slower with 1080i59.95, plus the Blackmagic
DirectShow filter API was going to be changed with a newer SDK.


Doug

-----Original Message-----
From: ag-tech-bounces at lists.mcs.anl.gov
[mailto:ag-tech-bounces at lists.mcs.anl.gov] On Behalf Of Douglas Kosovic
Sent: Friday, 24 September 2010 9:30 AM
To: Todd Zimmerman; ag-tech at lists.mcs.anl.gov
Subject: Re: [AG-TECH] AG3.2 Bundle - Blackmagic Card Support

Hi Todd,


Use VIC's native DeckLink grabber which has "Blackmagic-" as the prefix
in the name of the device e.g. "Blackmagic-Decklink Studio 2". In VIC
select 1080i59.98 and HDMI or whatever the input port and signals are.
	
You need to have the Blackmagic 7.8 driver or later driver installed,
otherwise the Signal and Port selection may not be possible and all the
codecs will be greyed out.

VIC's native DeckLink grabber has scaling support, port and signal
selection and handles dropping frames if encoding can't keep up better.


Doug

> -----Original Message-----
> From: ag-tech-bounces at lists.mcs.anl.gov [mailto:ag-tech-
> bounces at lists.mcs.anl.gov] On Behalf Of Todd Zimmerman
> Sent: Friday, 24 September 2010 2:52 AM
> To: ag-tech at lists.mcs.anl.gov
> Subject: [AG-TECH] AG3.2 Bundle - Blackmagic Card Support
> 
>   Hey All,
> 
> I'm trying to get my Blackmagic card working using the just released
> AG3.2 bundle.
> 
> Vic version: vic-2.8ucl1.4.0beta (GPL)
> 
> I'm using a Blackmagic Decklink Studio.
> 
> When I add start a VideoServiceHD, I am not getting video.  Here is
the
> behavior:
> 
> If I select  "Decklink Video Capture" for device (port external-in,
Signal NTSC)
> and any of h261as, mpeg4 or h264, I get a black screen (which is
> promising....).  h261 is grayed out, but if I set h.261 in the Service
> Configuration in AG, it will select it, but I get a vic error "can't
read "encoder":
> no such variable"
> 
> This is also the error I get if changing the device to "Blackmagic
Decklink
> Studio 2"
> 
> Note the 'Blackmagic Decklink-Grabber section with 'Software Scaling'
in the
> vic settings menu only appears if I select "Blackmagic Decklink Studio
2" as
> the device.
> 
> Any suggestions?
> 
> 
> Todd