Capturing from Decklink card broken after December 10 releases

Questions involving a Windows version of FFmpeg.
BlackScreen
Posts: 15
Joined: Tue Dec 20, 2016 1:34 pm

Re: Capturing from Decklink card broken after December 10 releases

Post by BlackScreen » Tue Feb 14, 2017 8:16 am

I just tested the recent version of your builds, Zeranoe, and they still do not work with the Decklink card.
Any chance for a fix on this?

LtDrebin
Posts: 2
Joined: Fri Feb 17, 2017 10:05 pm

Re: Capturing from Decklink card broken after December 10 releases

Post by LtDrebin » Fri Feb 17, 2017 10:52 pm

Hi,
I have the same problem with my DeckLink card since build "ffmpeg-20161216-a5cf600-win64-static".
the --enable-decklink option was present, but the device decklink was no more available (ffmpeg.exe -devices).
And now also the --enable-decklink option has disappeared in the current build "ffmpeg-20170214-8fa18e0-win64-static".
My questions are: Why? What is the reason and is there a chance to become back a current windows build with the decklink functionality?
Best regards.
LtDrebin

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Zeranoe
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Re: Capturing from Decklink card broken after December 10 releases

Post by Zeranoe » Sun Feb 19, 2017 7:22 am

LtDrebin wrote:Hi,
I have the same problem with my DeckLink card since build "ffmpeg-20161216-a5cf600-win64-static".
the --enable-decklink option was present, but the device decklink was no more available (ffmpeg.exe -devices).
And now also the --enable-decklink option has disappeared in the current build "ffmpeg-20170214-8fa18e0-win64-static".
My questions are: Why? What is the reason and is there a chance to become back a current windows build with the decklink functionality?
Best regards.
LtDrebin
FFmpeg uses native threading now and does not use pthread.

I don't believe that DeckLink actually requires pthread, so I'm working on some patches to remove the dependency. I hope to have this resolved soon, but I don't have an ETA.

LtDrebin
Posts: 2
Joined: Fri Feb 17, 2017 10:05 pm

Re: Capturing from Decklink card broken after December 10 releases

Post by LtDrebin » Fri Feb 24, 2017 1:46 am

Zeranoe wrote:
LtDrebin wrote:Hi,
I have the same problem with my DeckLink card since build "ffmpeg-20161216-a5cf600-win64-static".
the --enable-decklink option was present, but the device decklink was no more available (ffmpeg.exe -devices).
And now also the --enable-decklink option has disappeared in the current build "ffmpeg-20170214-8fa18e0-win64-static".
My questions are: Why? What is the reason and is there a chance to become back a current windows build with the decklink functionality?
Best regards.
LtDrebin
FFmpeg uses native threading now and does not use pthread.

I don't believe that DeckLink actually requires pthread, so I'm working on some patches to remove the dependency. I hope to have this resolved soon, but I don't have an ETA.
Hi Zeranoe,
you're doing a great job. Thank you very much for your quick reply. Now I know.
Sorry for my late response, I was offline.
Good succeed
LtDrebin

larnold7
Posts: 5
Joined: Wed Sep 23, 2015 8:39 pm

Re: Capturing from Decklink card broken after December 10 releases

Post by larnold7 » Thu Mar 02, 2017 7:05 pm

Regarding the Pthread issue with decklink;
I just built ffmpeg on win7 with media-auto-rebuild-suite, using the zeranoe option.
Ffmpeg -devices does not report decklink.
I need a new build, because I need to configure interlacing on a decklink output, and that code just made it into git in the last couple of days.

Any chance some patches might make it into the tree?

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Zeranoe
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Re: Capturing from Decklink card broken after December 10 releases

Post by Zeranoe » Fri Mar 03, 2017 6:23 pm

Is it possible to use DShow with the DeckLink device for the time being?

BlackScreen
Posts: 15
Joined: Tue Dec 20, 2016 1:34 pm

Re: Capturing from Decklink card broken after December 10 releases

Post by BlackScreen » Mon Mar 06, 2017 12:07 pm

Zeranoe wrote:Is it possible to use DShow with the DeckLink device for the time being?
It would be possible, but not a good solution, because the options of selecting the video and audio input are needed at my end.

larnold7
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Joined: Wed Sep 23, 2015 8:39 pm

Re: Capturing from Decklink card broken after December 10 releases

Post by larnold7 » Tue Mar 07, 2017 6:53 pm

It would be possible, but not a good solution, because the options of selecting the video and audio input are needed at my end.
And the ability to select output formats/resolutions are needed at my end. Not to mention I based my code on the ffmpeg examples.

BlackScreen
Posts: 15
Joined: Tue Dec 20, 2016 1:34 pm

Re: Capturing from Decklink card broken after December 10 releases

Post by BlackScreen » Thu Apr 06, 2017 2:46 pm

Zeranoe wrote: FFmpeg uses native threading now and does not use pthread.

I don't believe that DeckLink actually requires pthread, so I'm working on some patches to remove the dependency. I hope to have this resolved soon, but I don't have an ETA.
@Zeranoe: Any news on the patches?

BlackScreen
Posts: 15
Joined: Tue Dec 20, 2016 1:34 pm

Re: Capturing from Decklink card broken after December 10 releases

Post by BlackScreen » Mon Apr 17, 2017 9:06 am

Zeranoe wrote:FFmpeg uses native threading now and does not use pthread.

I don't believe that DeckLink actually requires pthread, so I'm working on some patches to remove the dependency. I hope to have this resolved soon, but I don't have an ETA.
@Zeranoe: I think your patch got applied to FFmpeg - https://git.ffmpeg.org/gitweb/ffmpeg.gi ... 0d973ba23b.
Could this mean, that you will support Decklink again in your future builds?

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