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Chapter 10 - Conference Templates – Full Parameters View
10-26
Video Format
(cont.)
• Using the H.263 protocol, you can select one of
the following options: Auto, QCIF, CIF, 4CIF,
16CIF, VGA, SVGA, XGA and NTSC.
4CIF - High Quality 4CIF video resolution available
in Continuous Presence conferences running at 512
Kbps or higher line rates. In this mode, the endpoints
transmit CIF (or QCIF) and receive 4CIF images
from the MCU. In full screen layout (1x1), endpoints
that can send 4CIF images will also receive and
view 4CIF images from the MCU.
In 4CIF CP conferences, you can select the Quality
of the screen display depending on the video
transmission. For more information, see “Quality” on
page 10-27.
NTSC (National Television Standards Committee) -
Each frame contains 525 lines and up to 16 million
colors.
VGA (Variable Graphics Array) - 640 x 480
resolution
SVGA (Super Variable Graphics Array) - 800 x 600
pixel resolution
XGA (eXtended Graphics Array) - 1024 x 768 pixel
resolution
VGA, SVGA, XGA and NTSC options are important
for displaying content when selecting the People and
Content mode. Typically the People resolution is CIF
with a frame rate of up to 30 frames per second,
while the Content resolution is VGA, SVGA, XGA or
NTSC. resolution.
Table 10-3: Basic Conference Parameters
Option Description