Software

{pop-away:metadata | comments | children | labels}


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.

h6. 1.\- Install dependences.

Galicaster requires the following software to be installed:

* Gstreamer
* python-setuptools and pip
* iCalendar
* pyCurl
* Capture card configuration tools

{code:none}
$ 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
{code}

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

h6. 2.\- Check configuration.

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

{code:none}
$ 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
{code}

h6. 3.\- Download software

Download the software from [this site|http://webfiler.teltek.es/webfiler/galicaster/galicaster-1.0.0-rc.tgz].

Uncompress it using tar:

{code}
$ tar xzf galicaster-1.0.0-rc.tgz
$ cd galicaster-1.0.0-rc
{code}

{anchor:config}

h6. 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|Galicaster:Hardware#videocapturecard] \- [conf.ini|http://webfiler.teltek.es/webfiler/galicaster/configs/hau/conf.ini]
* [WebCam USB configuraion|Galicaster:Hardware#webcamusb] \- [conf.ini|http://webfiler.teltek.es/webfiler/galicaster/configs/webcam/conf.ini]





The values are in the file {{conf.ini}}:


Sections:

{anchor:config_basic}
* {{basic}}
** {{repository}}: path to the working folder.
** {{admin}}: enables admin mode (True\|False)
** Example:
{code:none}
[basic]
repository = /mnt/videos/Repository
admin = True
{code}

{anchor:config_screen}
* {{screen}}
** {{right}}: Name of the video device in the [track list|#config_track] to be shown in the right screen (None to deactivate).
** {{left}}: Name of the video device in the [track list|#config_track] 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:
{code:none}
[screen]
right = Epiphan
left = Hauppagge
cursor = True
{code}

{anchor:config_ingest}
* {{ingest}}
** The data to connect Galicaster to an Opencast-Matterhorn server.
** Example:
{code:none}
[ingest]
active = True
default = True
username = matterhorn_system_account
host = http://admin.matterhorn.es:8080
password = CHANGE_ME
workflow = full
{code}

***** {{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:
{code:none}
[track1]
name = Hauppagge
loc2 = /dev/hauprevideo
loc3 = /dev/haupreaudio
location = /dev/haucamera
file = CAMERA.mpg
device = hauppage
flavor = presenter
active = False
{code}
*** *pulse*: Audio device.
**** Values in audio (pulse) devices:
***** {{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:
{code:none}
$ pactl list | grep "Source" -A 5
{code}
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:
{code:none}
[track3]
name = AudioSource
vumeter = Active
location = default
file = sound.mp3
device = pulse
flavor = presenter
active = False

***** {{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:&nbsp;}} 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&nbsp; [http://pygstdocs.berlios.de/pygst-tutorial/capabilities.html|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}}
**** Example:
{code:none}
[track4]
name = Webcam

caps = image/jpeg,framerate=25/1,width=1280,height=720
videocrop-left = 160
videocrop-right = 160
{code}
*** *vga2usb*: Video device
**** Values in vga2usb devices:
***** {{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:
{code:none}
[track2]
name = Epiphan
active = True
location = /dev/screen
file = SCREEN.avi
device = vga2usb
flavor = presentation

{code}

h6. 5.\- Running

Galicaster Class is launched with the command:

{code:none}
$ ./classexec
{code}


In the [F.A.Q.|Galicaster:FAQ] section you can see some common questions about Galicaster.