Capturing with Blackmagic Intensity card using Dshow -- how to select input?

Questions involving a Windows version of FFmpeg.
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MusicMan3001
Posts: 9
Joined: Fri Sep 06, 2013 5:35 pm

Capturing with Blackmagic Intensity card using Dshow -- how to select input?

Post by MusicMan3001 » Mon May 08, 2017 10:21 pm

Hi, I have a Blackmagic Intensity capture box, and in general I'm able to use ffmpeg to capture with it using both the dshow and decklink input device configurations.

Except... I can't select the physical input (HDMI/Component/Composite/etc.) using dshow. I can only use decklink for this (using the video_input argument).

For dshow, I've tried setting both the video_pin_name and crossbar_video_input_pin_number options, but neither of these work.
It seems that dshow can only use the most recently set input specified by decklink.

Has anyone been successful in using dshow to select a different physical input? I'm asking because I'd rather not have to support the decklink input device for the application I'm working on (mainly beause I'm custom-building ffpeg and I don't want to deal with compiling the DeckLink SDK).

Thanks very much!

rogerdpack
Posts: 1872
Joined: Fri Aug 05, 2011 9:56 pm

Re: Capturing with Blackmagic Intensity card using Dshow -- how to select input?

Post by rogerdpack » Wed May 17, 2017 11:00 pm

it doesn't list multiple devices then? hmm...there's a real "decklink" input option maybe? GL!

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