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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 dependencies.

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, installing v4l-utils is recommended 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:

This is the structure of the conf.ini file:

  • Section basic
    • repository: absolute path to the working folder. If not specified, a Repository directory in the user's home will be used.
    • admin: enables admin mode (True|False)
      • False: By default, the user will only be allowed to make recordings. Galicaster will operate as a GClass
      • True: Apart from recording, the user can edit metadata, play and manage the recordings. Galicaster will behave as a GMobile
    • Example:
      [basic]
      repository = /mnt/videos/Repository
      admin = True
      

  • Section 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 pointe. Useful if using a tactile screen (True|False)
    • Example:
      [screen]
      right = Epiphan
      left = Hauppagge
      cursor = True
      

  • Section 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
      

  • Section trackN
    • A section for each device used in the capturer. Each section is set according to the device type: hauppauge, pulse, v4l2 or vga2usb:
      • hauppauge: Audio and Video device.
        • Admitted values:
          • name: Name assigned to the device.
          • device: Device type: hauppage
          • flavor: Matterhorn "flavor" associated to the track. (presenter|presentation|other)
          • location: Device's mount point of the MPEG output
          • loc2: Device's mount point of the RAW output
          • loc3: Device's mount point of the PCM output
          • file: The file name where the track will be recorded.
          • active: Whether the device will be played and recorded. (True|False)
        • Example:
          [track1]
          name = Hauppagge
          loc2 = /dev/hauprevideo
          loc3 = /dev/haupreaudio
          location = /dev/haucamera
          file = CAMERA.mpg
          device = hauppage
          flavor = presenter
          active = False
          
      • pulse: Audio device.
        • Admitted values:
          • name: Name assigned to the device.
          • device: Device type: pulse
          • flavor: Matterhorn "flavor" associated to the track. (presenter|presentation|other)
          • location: PulseAudio source name. Use default to select the same Input as the Sound Control
            • to list 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)
          • 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:
          [track3]
          name = AudioSource
          vumeter = Active
          location = default
          file = sound.mp3
          device = pulse
          flavor = presenter
          active = False
          amplification = 2.0
          
      • v4l2: Video device
        • Admitted values:
          • name: Name assigned to the device.
          • device: Device type: v4l2
          • flavor: Matterhorn "flavor" associated to the track. (presenter|presentation|other)
          • location: Device's mount point in the system (e.g. /dev/video0).
          • file: The file name where the track will be recorded.
          • active: Whether the device will be played and recorded. (True|False)
          • caps:  GStreamer cappabilities of the device (mimetype=video/TYPE, framerate=X/Y,width=A,height=B)
            TYPE: (jpeg|x-raw-int)
            Use GVUCView tool to know wich capabilities are compatible with your device
            For more information  http://pygstdocs.berlios.de/pygst-tutorial/capabilities.html
          • Videocrop: Margin in pixels to be cutted. Useful to set a 4:3 proportion on a HD webcam.videocrop-top, videocrop-bottom, videocrop-left, videocrop-right (optional).
        • Example:
          [track4]
          name = Webcam
          location = /dev/webcam
          file = WEBCAM.avi
          device = v4l2
          flavor = presenter
          active = False
          caps = image/jpeg,framerate=25/1,width=1280,height=720
          videocrop-left = 160
          videocrop-right = 160
          
      • vga2usb: Video device
        • Admitted values:
          • name: Name assigned to the device.
          • device: Device type: vga2usb
          • flavor: Matterhorn "flavor" associated to the track. (presenter|presentation|other)
          • location: Device's mount point in the system (e.g. /dev/video0).
          • file: The file name where the track will be recorded.
          • active: Whether the device will be played and recorded. (True|False)
          • drivertype: Wheter the device use a v4l or a v4l2 interface to guarantee compatibility (v4l|v4l2)
        • Example:
          [track2]
          name = Epiphan
          active = True
          location = /dev/screen
          file = SCREEN.avi
          device = vga2usb
          flavor = presentation
          
          
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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