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Creating and Downloading a Logo
Instruction Manual: evolution 5000 E57xx DSNG and DENG Voyager Encoder Page E-3
ST.TM.E10076.3
E.1 Introduction
The Encoder includes a logo overlay facility whereby an image can be
overlaid onto the active video prior to encoding. This enables broadcasters
to trademark or brand their material with a logo.
To overlay the material with a logo, the logo must first be downloaded into
the equipment using the Ethernet TFTP protocol. Once this has been done
the logo can be enabled or disabled. Contact TANDBERG Television for
further details.
E.2 Summary of Features
Up to 13 logos can be overlaid onto the active video. The space each logo
occupies is referred to as a region. If two logo regions share a horizontal
line they may interfere with each other, so this should be avoided, (see
Section E.7.5). i.e. logos may be placed adjacent vertically, but not
horizontally. Logos cannot be overlapped.
One logo can be downloaded into Flash memory and will still be present
after the Encoder has been powered OFF. All other logos are stored in
volatile memory and will be lost when the Encoder is powered OFF.
To create and download logos to the Encoder, two Windows applications
are required, Osd Creator and Osd Loader. Once a logo has been
downloaded to Flash it can be enabled/disabled from the front panel menu:
Setup/Video/Video source/Stored OSD. Logos downloaded to volatile
memory can only be controlled by the OSD Loader application running
from a PC.
Logos are defined at pixel resolution and include a red, green, blue and
transparency component. Logos can be positioned anywhere in the active
video and can be any size from 1x1 pixel to the full size of the active
picture (720x576 or 720x480 pixels). Logos are limited to a maximum of
256 colours, including different levels of transparency.
The logo is overlaid onto the active picture prior to horizontal and vertical
down-sampling, noise reduction and video bandwidth filtering, if these are
used.
E.3 OSD Programs Built Into the Encoder
Two Windows applications are required for creating and downloading logos
to the Encoder, namely Osd Creator and Osd Loader. These programs are
stored permanently in the Encoder where they can be downloaded via the
Web Browser Interface. Further information is available in Chapter 5, Web
Browser Interface. These applications must be unzipped and saved to a PC
prior to use. This requires WinZip to be installed on the PC.
Using the Web Browser interface, see Figure E.1, select Option 2 Tools,
OSD Toolkit.