Download

Hardware

Para esta primera release se proponen dos configuraciones de referencia. La primera usando una cámara web USB y la segunda usando una Video Capture Card como Hauppauge PVR350. En ambos casos se recomienda usar una VGA Capture Card del modelo VGA2USB o superior.

Video Capture Card

WebCam USB

En la sección de cookbook encontraras recetas para configurar las capture card en linux

Software

Galicaster is based on Open Source technologies. 

Para probar esta primera release se recomienda el uso de Ubuntu 10.04 LTS sobre el hardware antes descrito. Sobre el en necesario instalar las dependencias y realizar la comprobaciones básicas:

1.- Install dependences

• 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 v4l-utils guvcview

2.- Check configuration

$ 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 v4l2src num-buffers=25 ! video/x-raw-yuv,width=800,framerate=24/1 ! ffmpegcolorspace ! xvimagesink
$ gst-launch v4l2src num-buffers=25 ! video/x-raw-yuv,width=800,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.- Dowload software

Download and extract the software from this site.

4.- Config galicaster

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 to be shown in the right screen (None to deactivate).
  • left: Name of the video device to be shown in the left screen (None to deactivate).
  • cursor: Shows or hides the cursor. (True|False)

Example:

[screen]
right = Epiphan
left = Hauppagge
cursor = True

• ingest
  • The data to connect Galicaster to an Opencast-Matterhorn server.

[ingest]
default = True
username = matterhorn_system_account
host = http://admin.matterhorn.es:8080
password = CHANGE_ME
workflow = full

• track
  **Values common to all devices:
  • • name: Name assigned to the device.
    • device: Tipo de dispositivo. (v4l2|vga2usb|webcam|hauppage|pulse)
    • flavor: Matterhorn "flavor" associated to the track. (presenter|presentation|other)
    • location: Device's mount point in the system (p.ej. /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 by running the command:

$ ./classexec