Hello,

thanks for your answer, but it keeps crashing. However, the logs are
showing some interesting messages:

[...]
org.opencastproject.capture.pipeline.bins.UnableToCreateElementException:
Epiphan_VGA2USB could not create v4lsrc at
[...]

If I execute:

gst-launch --gst-debug-no-color -e --gst-debug=2 v4lsrc
device=/dev/vga2usb0 ! fakesink

I get this error:

0:00:00.027119101  2438      0x1aad080 ERROR           GST_PIPELINE
./grammar.y:661:_gst_parse_yyparse: no element "v4lsrc"
0:00:00.027165534  2438      0x1aad080 ERROR           GST_PIPELINE
./grammar.y:929:_gst_parse_launch: Unrecoverable syntax error while parsing
pipeline v4lsrc device=/dev/vga2usb0 ! fakesink
ERROR: pipeline could not be constructed: no element "v4lsrc".

I've tried the v4l2src and it says that it isn't a v4l2 driver. I'm
thinking that maybe the problem is that I haven't the v4lsrc plugin for the
gstreamer.

# gstreamer-properties
[...]
# gstreamer-properties-Message: Skipping unavailable plugin 'v4lsrc'
[...]

Is there any easy way to install the v4lsrc plugin for the gstreamer 0.10
in a Ubuntu 10.10 x86_64?


Thank you!


2012/11/20 Long, Warren <[email protected]>

>  (novice responding here, but we have spent some time with 1.3.1 and
> capture agents.  And this is what has burned us EVERY time.)
>
>  Make sure you have a good and continuous video signal to the Epiphan,
> before even allowing the machine to boot!
>
>  W
>
>  On 2012-11-20, at 8:55 AM, Oriol Pellicer i Sabrià wrote:
>
> Hello,
>
> after a successful Core Server installation on a dedicated server, I'm
> trying to install the Capture Agent 1.3.1 on a PC running Ubuntu 10.10 64
> bits, but I can't configure properly nor the Epiphan VGA2USB Card neither
> the BlackMagicDesign Intensity Pro PCI-Express card.
>
> Problem1 -> VGA2USB: I'm able to capture the vga output using mencoder:
>
> mencoder -oac lavc -ovc lavc -lavcopts
> vcodec=mpeg4:keyint=100:vbitrate=8000:vhq -noaspect -o
> /home/client/test3.avi -tv
> noaudio:driver=v4l:outfmt=bgr24:device=/dev/video0 tv://
>
> However, from http://localhost:8080/capture I can start/stop capturing,
> but the file Epiphan_VGA2USB.mpg is empty (0 Bytes).
>
> The configuration in
> /opt/matterhorn/felix/conf/services/org.opencastproject.capture.impl.ConfigurationManager.properties:
>
> [...]
> capture.device.Epiphan_VGA2USB.src=/dev/video0
> capture.device.Epiphan_VGA2USB.outputfile=Epiphan_VGA2USB.mpg
> capture.device.Epiphan_VGA2USB.flavor=presenter/source
> capture.device.Epiphan_VGA2USB.buffer.bytes=536870912
> capture.device.Epiphan_VGA2USB.type=EPIPHAN_VGA2USB
> capture.device.Epiphan_VGA2USB.confidence.interval=10
> [...]
>
> Problem2 -> Intensity PRO:
>
> From my point, the card is properly detected:
>
> root@client-desktop:/opt/matterhorn# dmesg | grep blackmagic
> [   11.866896] blackmagic: module license 'Proprietary' taints kernel.
> [   11.874589] blackmagic: Loading driver (version: 9.6.7a19)
> [   11.888797] blackmagic_driver 0000:03:00.0: PCI INT A -> GSI 28 (level,
> low) -> IRQ 28
> [   11.888805] blackmagic_driver 0000:03:00.0: setting latency timer to 64
> [   11.888810] blackmagic_driver 0000:03:00.0: PCI: Disallowing DAC for
> device
> [   11.888858] blackmagic_driver 0000:03:00.0: setting latency timer to 64
> [   16.049947] blackmagic: Successfully loaded device "blackmagic0"
> [pci@0000:03:00.0]
>
> I had to install an updated gstreamer from PPA (
> http://ppa.launchpad.net/gstreamer-developers/ppa/ubuntu) since the svn
> server from the guide doesn't exists anymore. Now I have an updated version
> of gstreamer-plugins-bad: 0.10.22, that includes decklinksrc.
>
> However, I can run gst-inspect decklinksrc but I suspect that the output
> is not the desired:
>
> Factory Details:
>   Long name:    Decklink source
>   Class:    Source/Video
>   Description:    DeckLink Source
>   Author(s):    David Schleef <[email protected]>
>   Rank:        none (0)
> Plugin Details:
>   Name:            decklink
>   Description:        Blackmagic Decklink plugin
>   Filename:        /usr/lib/gstreamer-0.10/libgstdecklink.so
>   Version:        0.10.22
>   License:        LGPL
>   Source module:    gst-plugins-bad
>   Source release date:    2011-05-10
>   Binary package:    GStreamer Bad Plug-ins
>   Origin URL:
> https://launchpad.net/distros/ubuntu/+source/gst-plugins-bad0.10
> [...]
> Element Properties:
>   name                : The name of the object
>                         flags: readable, writable
>                         String. Default: null Current: "decklinksrc0"
>
> I think that is missing the final part where is defined the "input" and
> the "input-mode" and without that I can't execute this:
>
> gst-launch -v -m decklinksrc input=HDMI input-mode=4 ! queue !
> ffmpegcolorspace ! ffenc_mpeg2video ! mpegtsmux ! filesink
> location=/tmp/test.mpg
> WARNING: erroneous pipeline: no property "input" in element "decklinksrc0"
>
>
> Thank you and sorry for the huge extension :)
>
>
> Oriol.
> _______________________________________________
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>
>
>    _____________________________________
>
>
>   *Warren Long*
> *    Senior Instructional Support Specialist*****
>      Information and Communications Technology****
>      Email:  [email protected]****
>      Ph: (306) 966-5426
>       <http://www.usask.ca/>
>
>
>
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>
>
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