Loading sub-menu...

Galicaster Mobile Installation Guide

Skip to end of metadata
Go to start of metadata
You are viewing an old version of this page. View the current version. Compare with Current  |   View Page History

Introduction

On this section you will be guided through a series of steps to finish the setup of your Galicaster Mobile unit. Please, read this documentation carefully and follow its instructions. In case of doubts please take advantage of the Galicaster Community list to make any question or suggestion.

In the following sections you will receive instructions on how to connect and configure you Galicaster unit.

Contents

A. Cards and connectors


The Galicaster Mobile Unit comes equipped with different inputs to fulfill your needs on recording multistream material. Depending on the devices you are about to use you should combine those inputs properly.

There are two main combinations, depending on the type of camera (NTSC or SDI) you use to record the presenter. In both cases you have to use a VGA grabber to record the slides. Those combinations will be explained briefly on the next two sections.

Please, take a closer look to the image to identify the ports of each capture card before connecting anything.

a.Graphics card
# Port Description
A1 VGA output To connect the monitor of the computer.
A2 HDMI output To connect the monitor of the computer.
A3 DVI output To connect the monitor of the computer.
b.Blackmagic card
# Port Description
B1 Deck port To connect a control desk via RS-422 interface.
B2 SDI output To connect an auxiliary monitor for the SDI video.
B3 SDI input To connect the video camera, BNC connector.
B4 Ref IN To connect a refference signal the monitor of the computer.

Click on the image to enlarge.
c.Hauppauge card
# Port Description
C1 Antenna input For TV tunning purposes, coaxial wire.
C2 S-Video input To connect the video camera, 4-pin connector.
C3 Composite input To connect the video camera, RCA connector.
C4 Audio input To connect a mixer or a microphone to record, mini-jack 3.5mm.
C5 IR input To connect an IR receptor for a remote control.
d.Epiphan card
# Port Description
D1 VGA capture To connect a laptop or computer VGA output to capture it
e.On-board sound card
# Port Description
E1 Line IN (Recommended) To connect a mixer or a line level microphone to record, mini-jack 3.5mm.
E2 Headphones OUT To connect a mixer or a microphone to record, mini-jack 3.5mm.
E3 Microphone IN To connect a microphone to record, mini-jack 3.5mm.
f.Motherboard
F1 Mouse-Keyboard PS2 connector for keyboard or mouse
F2 USB hub External USB 2.0 hub for multiple purposes.
F3 SPDIF input External USB 2.0 hub for multiple purposes.
F4 HDMI output DON'T USE.
F5 VGA output DON'T USE.
F6 USB hub External USB 2.0 hub for multiple purposes.
F7 LAN input To connect a RJ45 connector for network purposes.


A.1 NTSC based configuration


On this scheme you will be using a Epiphan VGA2USB LR to capture the presentation and a Hauppauge PVR-250 to capture a composite NTSC video camera. The sound will be recorded and synchronized by the Hauppauge card.

  • Connect your monitor to an output of the Graphics card (A1 to A3)
  • Connect the RCA or 4-pin connector from your camera. (C2 or C3)
  • Connect a laptop or computer to the Epiphan input (D1)
  • Connect a mixer or a line-level microphone to the Hauppauge Line input (C4)
  • To monitore the sound connect a pair of headphones or speakers to the sound card green output (E3).

Click on the image to enlarge.

Once you have everything connected jump to section B to configure the device and the audio.

A.2 SDI based configuration


On this scheme you will be using a Epiphan VGA2USB LR to capture the presentation and a Blackmagic Deckling SDI to capture a SD-SDI or HD-SDI (720p or 1080p i.e.) video camera. The sound will be recorded via the sound card.

  • Connect your monitor to an output of the Graphics card (A1 to A3).
  • Connect the BNC connector from your camera. (B3)
  • Connect a laptop or computer to the Epiphan input (D1).
  • Connect a mixer or a line-level microphone to the sound card blue input (E1).
  • To monitor the sound connect a pair of headphones or speakers to the sound card green output (E3).

Click on the image to enlarge.

Once you have everything connected jump to section B to configure the device and the audio.

B. Capture Devices configuration


Galicaster configuration is specified in two files conf-dist.ini and conf.ini. You can download two different models of conf.ini depending on the cards you are using:

Now, it's time to configure the card you've selected and audio. More information about this matter is available here.

B.1 Hauppauge configuration


Before running Galicaster you may have to configure your Hauppauge card. Connect your camera and do the following:

Standard selection
You have to choose between a list of standards. To list and select the standard, run in a shell:

v4l2-ctl -d /dev/haucamera --list-standards | grep Index -A 2
v4l2-ctl -d /dev/haucamera -s 0

Input selection
Depending on the input you are using you have to choose bettween S-Video (4-pin) and Composite (RCA). To list and select the input, run in shell:

v4l2-ctl -d /dev/haucamera -n | grep Input -A 1
v4l2-ctl -d /dev/haucamera -i 2

Inputs 1 and 3 are for 4-pin.
Inputs 2, 4 and 5 are for RCA.

B.2 Blackmagic configuration


To list the input standars and formats supported by Blackmagic cards run the following line in a shell:

gst-inspect-0.10 decklinksrc | grep Enum -A 20

Once you identified the format you want to capture, edit the conf.ini file you've just downloaded. Search for the track Blackmagic and change the parameters input and input_type for their right values. Some try-and-error may be neccessary since maybe you can't gather all the information from your video source.
The p in 1080p stands for progresive
The i in 1080i stands for interlaced

C.3 Sound configuration


To have the best audio feedback on your interface you should configure your audio inputs properly.

Pulse input ( Line in):
If you are using the Hauppauge card please skip this section
First of all, go to the Sound Manager (speaker icon on the top right corner of the desktop), select the input you are using and set the values to 100% volume, no amplification.
Later, if you have distortion on your audio input, edit the conf.ini and set amplification = 1.0 in the AudioSource device.

Headphones output
Regulate this slide bar to a comfortable sound level.

Galicaster Vumeter
Add this section in the conf.ini file.

[audio]
min = -60
max = 0

If the NO SOUND dialog is coming in and out constantly, set a higher value on min, for example -40.

  • Alsa Advanced configuration *

If you still experience problems after configuring the Sound Manager and your Mixer or Sound input device, you should take a look to ALSA.
Run alsamixer on a shell and ensure that your device is not being amplified.

  • Press F6 to select the input and F4 to go to the Capture section.
  • You can check the real Gain on Item on the top left corner of the screen.

C. Network Configuration


To change your IP settings, pleas read this official Ubuntu guideline.

The Network Manager is on the top right corner, Right-button click on the double arrow icon.


D. Opencast Matterhorn related configuration


If you have a OC-Matterhorn running you have to ask your Matterhorn system administrator for some information.

First of all, You need the admin host address, including the port. For example:

host = http://fakeadmin.matterhorn.com:80

You also need a digest user - a regular one won't work. There is a default digest account that should be replaced with your own values.

username=  matterhorn_system_account
password= CHANGE_ME

You also need to set up a default workflow and its parameters. Scheduled recordings will have his own workflow and parameters, defined in the scheduling operation, but the recordings started manually won't. The usual parameters you have to set up are captions and trimHold, which default to False. The normal configuration is:

workflow = full
workflow-parameters = trimHold:true

If you set up more than one parameter:

workflow-parameters = trimHold:true;captions=True

Finally, you have to decide if your recordings will be recorded automatically or not. If you want to do so, set default to True. All the configuration together will look like:

[ingest]
active = True
default = False
host = http://fakeadmin.matterhorn.com:80
username = matterhorn_system_account
password = CHANGE_ME
workflow = full
workflow-parameters = trimHold:true

This piece of code must be written on one of the configurations file. Be aware that values in conf.ini will overrule its equivalent in conf-dist.ini.

Enter labels to add to this page:
Please wait 
Looking for a label? Just start typing.