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U/M-2013-1000
Revision B
S1080 User’s Manual
Page A-2
Company Proprietary
August 22, 2013
Acronym/
Abbreviation
Definition
Frame rate
In the PAL and SECAM world (Europe), TV works at 25 frames per second. In the NTSC
world (USA) TV works at 29.97 frames per second. Movies work at 24 frames per second
in the PAL/SECAM world, and at 23.976 frames per second in the NTSC world.
FTP
File Transfer Protocol
GUI
Graphical user interface
H.264
H.264 is a next-generation video compression format. H.264 is also known as MPEG-4
AVC. Developed for use in high-definition systems, such as HDTV, Blu-ray and HD
DVD, as well as low-resolution portable devices, such as Sony’s PSP and Apple’s iPod.
H.264 offers better quality at lower file sizes than both MPEG-2 and MPEG-4 ASP (DivX
or XviD).
H.264 Profile
Base
Main
High
H.264 supports some encoding profiles (Base, Main, High). These profiles represent a
sub-set of the encoding techniques available in H.264. This is useful to target decoders
with very different decoding capabilities (memory and processing power in primus).
The
base
profile supports only a limited subset of techniques, so it is simpler to design,
requires less code and less processing power, and is aimed at low power devices.
The
Main
profile supports the majority of encoding techniques, so it need more code,
more memory and more processing power on the decoder side.
The
High
profile supports virtually all the H264′s encoding techniques. It is designed for
HD and Full HD (Blueray and HD Satellite broadcast) and it’s usually supported by
software decoders, too.
histogram
A statistical bar graph of a frequency distribution in which vertical rectangles of different
heights are proportionate to corresponding frequencies.
HTTP
Hyper Text Transfer Protocol
This is the protocol used to transfer data over the World Wide Web.
I frame
In the field of video compression a video frame is compressed using different algorithms
with different advantages and disadvantages, centered mainly around amount of data
compression. These different algorithms for video frames are called picture types or
frame types. The three major picture types used in the different video algorithms are I, P
and B. They are different in the following characteristics:
I
-frames are the least compressible, but don't require other video frames to decode.
P
-frames can use data from previous frames to decompress and are more
compressible than I-frames.
B
-frames can use both previous and forward frames for data reference to get the
highest amount of data compression
icon
An icon is a visual representation of something on your computer.
IP
Internet Protocol
IP ratio
One I frame is inserted
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