Cisco Cisco StadiumVision Mobile Streamer Maintenance Manual
© 2012 Cisco Systems, Inc. All rights reserved.
Page 35 of 103
• Most tile-matrix TVs require three RS-232 commands to switch them to and from
tile matrix mode. Currently Cisco StadiumVision Director only allows one RS-232
command to be transmitted per event state. Therefore, three event states are
needed to switch in and out of tile mode, or between video wall compositions.
Event-state transitions take time so the switch is not instant or seamless, and
spectators will notice the gradual transition of the video wall.
command to be transmitted per event state. Therefore, three event states are
needed to switch in and out of tile mode, or between video wall compositions.
Event-state transitions take time so the switch is not instant or seamless, and
spectators will notice the gradual transition of the video wall.
• Another transition-related caveat is that each TV must change input when
switching to/from tile mode or between compositions. This causes the screens to
momentarily go black and also show a small on-screen-display that identifies the
new input. Some TV models take up to a minute to synchronize to the video
signal on the new input, and during this time the screen is black. In addition, the
TVs that are part of the video wall will achieve synchronization at different times,
which results in a visual mosaic as the video wall randomly lights up screen by
screen over a period of time.
momentarily go black and also show a small on-screen-display that identifies the
new input. Some TV models take up to a minute to synchronize to the video
signal on the new input, and during this time the screen is black. In addition, the
TVs that are part of the video wall will achieve synchronization at different times,
which results in a visual mosaic as the video wall randomly lights up screen by
screen over a period of time.
DMP-Based Tile Matrix Video Wall
The DMP 4310 has native tile matrix capabilities. This allows tile matrix video walls
to be constructed without requiring expensive TVs with tile matrix capabilities. DMPs
tile matrix behavior is achieved by scaling the video region in the screen template so
it covers 2 or more TVs in each direction. By adjusting the X,Y coordinates for the
origin of the video region, each DMP can be made to display the correct piece (tile)
of the bigger video image. This is shown in
to be constructed without requiring expensive TVs with tile matrix capabilities. DMPs
tile matrix behavior is achieved by scaling the video region in the screen template so
it covers 2 or more TVs in each direction. By adjusting the X,Y coordinates for the
origin of the video region, each DMP can be made to display the correct piece (tile)
of the bigger video image. This is shown in
Figure 31.
DMP-Based 2x2 Tile Matrix Video Wall, with Screen Template for Bottom Right Display
The DMP-based tile matrix is recommended only for streaming video, as all DMPs
are receiving the exact same signal and and retain good synchronization. If a video
playlist were to be used instead of streaming video, then the displays would drift out
of sync over time.
are receiving the exact same signal and and retain good synchronization. If a video
playlist were to be used instead of streaming video, then the displays would drift out
of sync over time.