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<div class="moz-cite-prefix">Hi,<br>
<br>
sorry, I'm answering really slowly but I couldn't have a SDI
camera since I posted my question.<br>
<br>
Today I made some new tests, and guess what; it's working.<br>
<br>
The only thing I changed is that I have 2 new devices : usb camera
and an Osprey card for SD camera.<br>
<br>
The blackmagic driver works only if the usb camera is connected.
When I disconnect, I loose the signal and PD crash.<br>
<br>
When the usb camera is plugged, everything is stable and works
fine. <br>
Mystery.<br>
<br>
Thanks for your help, I'm sure thoses informations will be usefull
really soon.<br>
<br>
<br>
<br>
Le 27/09/13 23:54, Antoine Villeret a écrit :<br>
</div>
<blockquote
cite="mid:CAGn5wNe6ZcBL=mG920qoA7=mNdwbiJBthLS-OXOdrXPPFK9riQ@mail.gmail.com"
type="cite">
<div dir="ltr">hello,
<div><br>
</div>
<div>to reduce CPU eating, did you try to put each [pix_video]
in a separate pd~ and then send the image to a main patch with
[pix_share_*] ?</div>
<div>this could help</div>
<div><br>
</div>
<div>I never worked with blackmagic card but it could be
possible to add a new backend to [pix_video] to support those
cards "natevely" in pd.</div>
<div><br>
</div>
<div>+</div>
<div>a</div>
<div><br>
</div>
</div>
<div class="gmail_extra">
<br clear="all">
<div>--<br>
do it yourself <br>
<a moz-do-not-send="true"
href="http://antoine.villeret.free.fr" target="_blank">http://antoine.villeret.free.fr</a><br>
</div>
<br>
<br>
<div class="gmail_quote">2013/9/27 Benjamin ~ 01xy <span
dir="ltr"><<a moz-do-not-send="true"
href="mailto:benjah@free.fr" target="_blank">benjah@free.fr</a>></span><br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
<div>Hello,<br>
<br>
We are using a blackmagick decklink quad on linux<br>
to get the signal threw pix_video, we use the bmdcapture
command line tool combined with ffmpeg so as to write on
a virtual video device created by v4l2loopback (cf
<a moz-do-not-send="true"
href="http://wiki.labomedia.org/index.php/AstroFluxTechnique#bmdcapture_.7C_ffmpeg"
target="_blank">http://wiki.labomedia.org/index.php/AstroFluxTechnique#bmdcapture_.7C_ffmpeg</a>)<br>
<br>
it works fine and it is stable even if we plug/unplug
the video sources, it allows us to capture 1080i video
or PAL video encapsulated in the SDI signal, but if we
try to capture 4x1080i signals, the framerate is less
than 25fps as Pd is > 100% CPU<br>
<br>
++<br>
Benjamin<br>
<br>
Le 27/09/2013 09:21, Etienne Landon a écrit :<br>
</div>
<blockquote type="cite">
<div>
<div class="h5">
<div dir="ltr">Hello list, my first message ! youpi
<div><br>
</div>
<div>Regarding Blackmagic on linux you have to use
gstreamer through pdgst.</div>
<div>There are two plugins "decklinsrc" and
"decklinksink", this is working great !</div>
<div><br>
</div>
<div>I think they are in the "bad" plugin set</div>
<div><br>
</div>
<div>If this works the same in windows, perhaps
you have to fisrt set the mode of the blackmagic
before turning gem on. By setting up I mean
selecting the appropriate input and video
resolution.</div>
<div><br>
</div>
<div>And I confirm, never change settings while
using it, unplugging the blackmagic input whit
gem on freezes my computer</div>
<div><br>
</div>
<div>Etienne<br>
<div><br>
</div>
<div><br>
</div>
</div>
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