Filter
Top Products
User’s Guide CineMaster 49
Overlay (DirectDraw Hardware Overlay) –
One of the “capabilities”
(functions) supported in DirectX. This particular capability, which may or may
not be supported by a particular VGA chip (or its driver) provides the ability to
scale video up to larger than its original size (as defined in the NTSC or PAL
video standard). Overlay capability is necessary (but not sufficient) to do full-
screen video playback on the VGA screen when the desktop display resolution
is 800
×
600 or higher.
PAL
- Phase Alternate Line. This is the video standard for most of the
European television systems
720
×
576 at 25 frames per second.
Pixel –
Abbreviation for PICture ELement
,
the smallest discrete unit of a video
display that can be individually controlled. Video resolution is determined by
the number of horizontal and vertical pixels that make up a display. The binary
representation of a pixel is stored in the display memory on the graphics card.
Region Coding / Regionalization –
A requirement in the DVD specification
that prevents DVD content from being played in areas of the world for which it
was not intended. DVD content contains (as part of the data stream),
information about the region it was made for (this is usually written on the disc
and on the package), and all DVD boards must play content from one (and only
one) region. Regionalization supposedly will allow movies to be released on
DVD in one area of the world while they are still in the theaters in other areas
of the world, reducing the length of time it takes them to go from the theater to
DVD.
RGB –
Unlike composite, S-video or component video systems, computers
normally use a color imaging model based on discrete channels of Red, Green
and Blue light. These colors, when combined at full intensity, create white
light. RGB provides the most flexible means for digital systems to represent
virtually any color in the spectrum in terms of the absolute amounts of Red,
Green and Blue light the color contains. Digital video is usually not stored as
RGB; rather it is stored as YUV.