2012/11/20 McKenzie, Adam <[email protected]> > Hi Oriol,**** > > ** ** > > I noticed you had “location=/dev/vga2usb0” for your epiphan capture > device. I know it is ridiculous but you can’t actually capture from this > location. You need to capture from the equivalent /dev/video0 , /dev/video1 > location. >
Ok, thank you for this info. > Could you follow the v4l-info instructions here to determine if your > Epiphan VGA2USB is a v4l or v4l2 device (if there is anything that is > missing or confusing please let me know so that I can fix the documentation > for other users):**** > > http://opencast.jira.com/wiki/display/mh13/Custom+Capture+Devices+v1.3 > The output is: ### video4linux device info [/dev/video0] ### [...] So, I understand that I have a v4l2 device. > **** > > ** ** > > If it is a v4l2 device to fix the error you should be able to fix it by > adding:**** > > capture.device.DEVICE_NAME.type=V4L2SRC**** > > ** ** > > To your ConfigurationManager device in the service directory where > DEVICE_NAME is the name you chose for the vga2usb. **** > > ** ** > > It could be that your version of gstreamer doesn’t have the v4lsrc but I > think this is highly unlikely. You can check this using the gstreamer tools > (sudo apt-get install gstreamer-tools I think) and running the command > gst-inspect v4lsrc. It should spit out a lot of information about the > source or complain that it doesn’t exist. > # gst-inspect v4lsrc No such element or plugin 'v4lsrc' I can try to install the original Ubuntu 10.10 version of gstreamer (as Jonathan Bird says he's using v4l on 0.10.30 version), but then the problem will be that I will not have the decklinksrc plugin for gstreamer (needed by Blackmagic Intensity Pro) and the svn server refered on the guide ( http://gforge.unl.edu/svn/gst-decklink) doesn't exists anymore. Do you think that I'll be able to configure an Agent with a Epiphan VGA2USB and a Blackmagic Intensity Pro (PCI-X) together? I can start from zero with another Linux distro if it is necessary. Thank you all, Oriol. **** > > ** ** > > Thanks,**** > > Adam**** > > ** ** > > *Adam McKenzie* > * Programmer Analyst***** > > Applications, Information and Communications Technology**** > > Ph: (306) 966-8241**** > > ** ** > > *From:* [email protected] [mailto: > [email protected]] *On Behalf Of *Bird, > Jonathan > *Sent:* Tuesday, November 20, 2012 10:27 AM > *To:* Matterhorn Users > *Subject:* Re: [Matterhorn-users] Agent installation problems**** > > ** ** > > So we have 1.3.1 agents built with 10.10. **** > > ** ** > > Our streamer version is:**** > > gst-launch --version**** > > gst-launch-0.10 version 0.10.30**** > > GStreamer 0.10.30**** > > https://launchpad.net/distros/ubuntu/+source/gstreamer0.10**** > > ** ** > > ** ** > > and on our devices the video card is always faster at starting that the > epiphan so it always gets /dev/video0 and the the epiphan card maps to > /dev/video1**** > > ** ** > > and here is our settings from our > config: > /opt/matterhorn/felix/conf/services/org.opencastproject.capture.impl.ConfigurationManager.properties > **** > > ** ** > > ...**** > > ** ** > > capture.device.camera.src=/dev/camera**** > > capture.device.camera.outputfile=camera.mpg**** > > capture.device.camera.flavor=presenter/source**** > > capture.device.camera.buffer.bytes=536870912**** > > capture.device.camera.framerate=30**** > > ** ** > > capture.device.vga.src=/dev/video1**** > > capture.device.vga.outputfile=vga.mpg**** > > capture.device.vga.flavor=presentation/source**** > > capture.device.vga.buffer.bytes=536870912**** > > capture.device.vga.framerate=10**** > > capture.device.vga.type=V4LSRC**** > > ** ** > > capture.device.audio.src=hw:0**** > > capture.device.audio.outputfile=audio.mp2**** > > capture.device.audio.flavor=presenter/source**** > > capture.device.audio.buffer.bytes=536870912**** > > capture.device.names=vga,audio**** > > ** ** > > _____________________________________ **** > > ** ** > > > *Jonathan S. Bird* **** > > *Senior Instructional Support Specialist***** > > Information and Communications Technology**** > > Ph: (306) 966-8266**** > > **** > > <http://www.usask.ca/>**** > > ** ** > > On 2012-11-20, at 10:18 AM, Rubén Pérez <[email protected]> wrote:**** > > > > **** > > I see what your problem is. As you are using a newer gstreamer version, > there is no element "v4lsrc". The support for "v4l" was dropped in the > latest gstreamer versions, in favor of "v4l*2*src". **** > > ** ** > > I don't see an easy solution for you: the fix involves changing the code > and I'm not sure it will work by simply changing "v4lsrc" with "v4l2src". > Maybe Adam Mckenzie, who has made most of the work in the current Capture > Agent, has a better idea.**** > > ** ** > > Regards**** > > ** ** > > ** ** > > Rubén Pérez**** > > TELTEK Video Research**** > > www.teltek.es**** > > > > **** > > 2012/11/20 Oriol Pellicer i Sabrià <[email protected]>**** > > 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.**** > > _______________________________________________ > Matterhorn-users mailing list > [email protected] > http://lists.opencastproject.org/mailman/listinfo/matterhorn-users**** > > ** ** > > _____________________________________**** > > ** ** > > > *Warren Long* **** > > * Senior Instructional Support Specialist***** > > Information and Communications Technology**** > > Email: [email protected]**** > > Ph: (306) 966-5426**** > > **** > > > **** > > ** ** > > > _______________________________________________ > Matterhorn-users mailing list > [email protected] > http://lists.opencastproject.org/mailman/listinfo/matterhorn-users**** > > ** ** > > > _______________________________________________ > Matterhorn-users mailing list > [email protected] > http://lists.opencastproject.org/mailman/listinfo/matterhorn-users**** > > ** ** > > _______________________________________________ > Matterhorn-users mailing list > [email protected] > http://lists.opencastproject.org/mailman/listinfo/matterhorn-users**** > > ** ** > > _______________________________________________ > Matterhorn-users mailing list > [email protected] > http://lists.opencastproject.org/mailman/listinfo/matterhorn-users > >
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