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Galicaster is based on Open Source technologies.

The recommended OS for this release is Ubuntu 10.10
The installation process consists of five steps: installing dependencies, checking configuration, downloading software, configuring and running.

1.- Install dependences.

Galicaster requires the following software to be installed:

  • Gstreamer
  • python-setuptools and pip
  • iCalendar
  • pyCurl
  • Capture card configuration tools
$ sudo apt-get install \
    gstreamer0.10-ffmpeg gstreamer0.10-alsa gstreamer0.10-plugins-bad gstreamer0.10-plugins-bad-multiverse \
    gstreamer0.10-plugins-base gstreamer0.10-plugins-base-apps gstreamer0.10-plugins-good \
    gstreamer0.10-plugins-ugly gstreamer0.10-plugins-ugly-multiverse
$ sudo apt-get install python-pip python-setuptools
$ sudo pip install icalendar
$ sudo apt-get install python-pycurl
$ sudo apt-get install v4l-conf ivtv-utils guvcview

In ubuntu 11.04 and above is recommended installing v4l-utils instead of ivtv-utils.

2.- Check configuration.

Launch the following commands from a shell to verify that all dependencies are installed:

$ python --version
Python 2.6.6

$ python -c "import pygtk; pygtk.require('2.0')"
$ python -c "import pygst; pygst.require('0.10')"
$ python -c "import pycurl"
$ python -c "import icalendar"

$ gst-launch-0.10 videotestsrc num-buffers=25 ! video/x-raw-yuv,width=800,height=600,framerate=24/1 ! ffmpegcolorspace ! xvimagesink
$ gst-launch-0.10 videotestsrc num-buffers=25 ! video/x-raw-yuv,width=800,height=600,framerate=24/1 ! ffmpegcolorspace ! x264enc pass=5 quantizer=22 speed-preset=4 profile=1 ! queue ! avimux ! filesink location=out.avi
$ file out.avi
out.avi: RIFF (little-endian) data, AVI, 800 x 600, ~24 fps, video: H.264 X.264 or H.264
$ rm out.avi
3.- Download software

Download the software from this site.

Uncompress it using tar:

$ tar xzf galicaster-1.0.0-rc.tgz
$ cd galicaster-1.0.0-rc

4.- Configure Galicaster

Galicaster configuration is in the file conf.ini.

The simplest way to get started with Galicaster is dowloading any of the pre-existing conf.ini files for any of the reference configurations proposed:

  • [Video Capture Card configuration] - conf.ini
  • [WebCam USB configuraion] - conf.ini

The values are in the file conf.ini:

Sections:

  • basic
    • repository: path to the working folder.
    • admin: enables admin mode (True|False)
    • Example:
      [basic]
      repository = /mnt/videos/Repository
      admin = True
      

  • screen
    • right: Name of the video device in the [track list] to be shown in the right screen (None to deactivate).
    • left: Name of the video device in the [track list] to be shown in the left screen (None to deactivate).
    • cursor: Shows or hides the cursor. Util en la interfaz tactil de GClass (True|False)
    • Example:
      [screen]
      right = Epiphan
      left = Hauppagge
      cursor = True
      

  • ingest
    • The data to connect Galicaster to an Opencast-Matterhorn server.
    • Example:
      [ingest]
      active = True
      default = True
      username = matterhorn_system_account
      host = http://admin.matterhorn.es:8080
      password = CHANGE_ME
      workflow = full
      

  • trackN
    • Values common to all devices:
      • name: Name assigned to the device.
      • device: Device type. (v4l2|vga2usb|webcam|hauppage|pulse)
      • flavor: Matterhorn "flavor" associated to the track. (presenter|presentation|other)
      • location: Device's mount point in the system (e.g. /dev/video0).
        • For PulseAudio devices run:
          $ pactl list | grep "Source" -A 5
          

          and use "Name:" as the location field.

      • file: The file name where the track will be recorded.
      • active: Whether the device will be played and recorded. (True|False)
    • Values in audio (pulse) devices:
      • playing: Indicates if the audio, apart from being recorded, is played. (True|False)
      • vumeter: Activates data sending to the program's vumeter. (True|False) Only one device should be activated.
      • amplification: Gstreamer amplification value: < 1 decreases and > 1 increases volume. Values between 1 and 2 are commonly used.
    • Example:
      [track1]
      name = Hauppagge
      loc2 = /dev/hauprevideo
      loc3 = /dev/haupreaudio
      location = /dev/haucamera
      file = CAMERA.mpg
      device = hauppage
      flavor = presenter
      active = False
      
      [track2]
      name = Epiphan
      active = False
      location = /dev/screen
      file = SCREEN.avi
      device = vga2usb
      flavor = presentation
      
      [track3]
      amplification = 2.0
      name = AudioSource
      vumeter = Active
      location = alsa_input.usb-046d_081d_96D1FD90-00-U0x46d0x81d.analog-mono
      file = sound.mp3
      device = pulse
      flavor = presenter
      active = False
      playing = False
      
      [track4]
      name = Webcam
      videocrop-left = 160
      videocrop-right = 160
      caps = image/jpeg,framerate=25/1,width=1280,height=720
      active = False
      location = /dev/webcam
      file = CAMERA.avi
      device = mjpeg
      flavor = presenter
      
5.- Running

Galicaster Class is launched with the command:

$ ./classexec

In the F.A.Q. section you can see some common questions about Galicaster.

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