User`s guide

AIRSHIP © 2009
Page 30
Resolution Settings
IMPORTANT NOTE: CHANGING THIS SETTING REQUIRES A COMPLETE SYSTEM RESET AND
ALL PRIOR CONFIGURATIONS AND USER ACCOUNTS WILL BE LOST
This setting is here for you to allocate processing power on the encoders to change
the system from a flexible CIF system to a full 4CIF system or vice versa.
Airship H.264 Encoders cannot do 4CIF and 30 frames per second on every channel when
configured for Normal. When configured as such, the system will drop 1/3 to 1/2 of the
video frames, depending on how much motion is occurring on the cameras.
Normal (enable all channels and dual stream) - With this setting every channel is enabled
and can be configured for any resolution or frame rate the user specifies. QCIF, CIF, 2CIF,
and DCIF are all available for 30 fps recording. 4CIF is also available on every camera, but
may lose frames above 15-20 fps.
Enable all Channels 4CIF at reduced frame rate (disable dual stream) - With this setting
the Dual Stream feature is deactivated. Any Dual Streams settings in the Server will be
ignored and all Clients will get the main video stream instead. You can configure all cameras
for QCIF, CIF, 2CIF, DCIF, and 4CIF. Performance will be better on 4CIF recordings and
fewer frames will be lost than in Normal mode.
Enable all channels 4CIF at full frame rate (hide half of channels and enable dual
stream) - With this setting, the EVEN numbered cameras will be disabled. The remaining
ODD numbered cameras can then be configured for 4CIF at 30 frames per second. Dual
Stream configured on cameras will be used to send video streams to the Clients.
With this setting, a 64 camera system becomes a 32 4CIF camera system. A 16 camera
system becomes a 8 4CIF camera system, and so on.
Playback Max Screens - This setting allows you to change the number of simultaneous
playback screens that are available. The default value is 4 and is highly recommended.
Increasing the number of playback screens can adversely affect Server performance in
systems that are already very busy with especially those with constant high resolution, real-
time recording.