[FFmpeg-user] Blackmagic Intensity Pro - how to capture video with audio?

[Jay Muthialu]

Hi Damien

I am planning to buy either Blackmagic Intensity Pro card or Intensity Shuttle usb3.0 for my testing. Would you mind sharing your hardware spec and Windows version which is working for your Intensity Pro card? Also do you have any inputs if Intensity shuttle will work in Windows 8 on a regular laptop. My objective is to do experimental testing and I am not planning to use to capture videos for more than 5 to10, minutes so I think I might not need heavy specs as typically expected in Blackmagic design products. Any thoughts would be welcome.

Regards
Jay

On Sep 10, 2014, at 8:51 AM, Damian Głodny <damian at artnmedia.pl> wrote:

> Hi, I found solution for my problem. I made a fresh install of Blackmagic drivers and got Decklink Video and Audio Capture on DirectShow devices list. Now everything work as it should. 
> 
> 
> -----Original Message-----
> From: ffmpeg-user-bounces at ffmpeg.org [mailto:ffmpeg-user-bounces at ffmpeg.org] On Behalf Of Roger Pack
> Sent: Wednesday, September 10, 2014 2:27 PM
> To: FFmpeg user questions
> Subject: Re: [FFmpeg-user] Blackmagic Intensity Pro - how to capture video with audio?
> 
> does it use a crossbar interface do you know?
> there are some patches on ffmpeg-devel list [uncommitted as of yet, sorry!] that might help...
> 
> On Mon, Sep 8, 2014 at 6:12 AM, Damian Głodny <damian at artnmedia.pl> wrote:
> 
>> Hello, I have Blackmagic Intensity Pro video card and I want to stream 
>> video from that card to multicast using ffmpeg. But my problem is that 
>> I can get only video from that card, no audio.
>> 
>> Ok, time for some commands.
>> 
>> 
>> 
>> List of my dshow devices:
>> 
>> -=-=-=-=-=-=-
>> 
>> ffmpeg -list_devices true -f dshow -i dummy
>> 
>> 
>> 
>> [dshow @ 0000000004437720] DirectShow video devices
>> 
>> [dshow @ 0000000004437720]  "Blackmagic WDM Capture" <- it is 
>> Intensity Pro card
>> 
>> [dshow @ 0000000004437720] DirectShow audio devices
>> 
>> -=-=-=-=-=-=-
>> 
>> 
>> 
>> As you can see Intensity Pro does not provide a separate DirectShow 
>> audio device.
>> 
>> 
>> 
>> 
>> 
>> Blackmagic WDM Capture options:
>> 
>> 
>> 
>> -=-=-=-=-=-=-
>> 
>> ffmpeg -f dshow -list_options true -i video="Blackmagic WDM Capture"
>> 
>> 
>> 
>> [dshow @ 00000000043e7720] DirectShow video device options
>> 
>> [dshow @ 00000000043e7720]  Pin "Video Capture"
>> 
>> [dshow @ 00000000043e7720]   pixel_format=uyvy422  min s=1280x720 fps=50
>> max
>> s=1280x720 fps=50
>> 
>> [dshow @ 00000000043e7720]  Pin "Audio Capture"
>> 
>> -=-=-=-=-=-=-
>> 
>> 
>> 
>> As you can see THERE IS a pin called "Audio Capture".  But how I can 
>> use it?
>> 
>> 
>> 
>> 
>> 
>> So here is my question: how I can map that Audio Capture pin as a 
>> ffmpeg audio input?
>> 
>> 
>> 
>> I tried following commands (ffplay):
>> 
>> ffplay -f dshow -i video="Blackmagic WDM Capture" -> I can see only 
>> video, no sound
>> 
>> ffplay -f dshow -i video="Blackmagic WDM Capture":audio="Blackmagic 
>> WDM Capture" -> error: [dshow @ 0000000002a8f480] Could not find audio device.
>> 
>> 
>> 
>> Is it possible or Intensity Pro "is not compatible" with ffmpeg?
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> ---
>> 
>> Cheers!
>> 
>> 
>> 
>> _______________________________________________
>> ffmpeg-user mailing list
>> ffmpeg-user at ffmpeg.org
>> http://ffmpeg.org/mailman/listinfo/ffmpeg-user
>> 
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