VLC Blackmagic Decklink

Feature requests for VLC.
yuyo
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Re: VLC Blackmagic Decklink

Postby yuyo » 11 Jun 2015 17:35

Hi I did download this package and it works. https://www.dropbox.com/s/mddj7ut1q0yn0 ... 4.zip?dl=0
I have a card blackmagic mini monitor with the latest desktop video version 10.4.1.
The problem I have is the audio cuts out when I play video over a network.

Jpacio89
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Re: VLC Blackmagic Decklink

Postby Jpacio89 » 30 Aug 2015 13:37

Hi all!

@ywlke
I can confirm audio cuts regularly and I have been debugging a little bit to find out the cause. In some situations, audio scheduling exceeds the available card internal memory and so it rejects the audio coming in. One simple solution is to check whether there is too much audio already scheduled and wait until Decklink plays part of it. Another solution is to upgrade Decklink's drivers to the latest version. I do not know if it was a Decklink's driver bug but it is now working fine with the latest drivers.

I also tried to compile (mingw32) the code from this ticket
https://trac.videolan.org/vlc/ticket/12678

but the video is not scaling. Is there some code missing to handle video scaling?

Thanks guys!

ywlke
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Re: VLC Blackmagic Decklink

Postby ywlke » 02 Sep 2015 02:02

Yes. I have not had a chance to format and submit my final set of patches. Here is the relevant subsection:

Code: Select all

--- a/modules/video_output/decklink.cpp +++ b/modules/video_output/decklink.cpp @@ -721,7 +784,9 @@ static int OpenVideo(vlc_object_t *p_this) //video_format_FixRgb(&(vd->fmt)); vd->fmt.i_width = decklink_sys->i_width; + vd->fmt.i_visible_width = decklink_sys->i_width; vd->fmt.i_height = decklink_sys->i_height; + vd->fmt.i_visible_height = decklink_sys->i_height; char *pic_file = var_InheritString(p_this, VIDEO_CFG_PREFIX "nosignal-image"); if (pic_file) {


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