Video And Audio; Video - Abus eyseo. TV7206 Guide D'installation

Video and audio

This videoserver supports dual-stream for video data. For audio data there is only one setting.

Video

"Video title" The text appears in the black bar above the video window with a timestamp. This
timestamp (date and time) is supplied by the Dual-stream videoserver, and the date and time are
supplied by an integrated realtime clock.
"Color" Selects between colour and monochrome display.
"Flip" Vertical rotation of the video picture.
"Mirror" Horizontal rotation of the video picture.
„Modulation" Select PAL or NTSC, regarding camera type, or choose Auto. After changing the
modulation type the videoserver must be restarted.
„Komprimierung" JPEG or MPEG-4 compression is possible
"Frame size" Four options are available for the three video sizes: "176x144", "352x288" and "704x576"
for PAL; "176x120", "320x240" and "704x480" for NTSC.
"Power line frequency" Fluorescent light pulses with the mains frequency. Adapt the mains
frequency to eliminate this pulsing in the picture.
Three parameters are available for setting the video quality.
"Max frame rate" Restricts the maximum frame rate, which can be combined with the "Key frame
interval" to optimise bandwidth use and video quality. If the user wants to define bandwidth usage
independently of the video quality, "Constant bit rate" and the desired bandwidth must be selected.
Video quality can be affected due to sending the maximum frame rate within the restricted bandwidth if
the pictures are fast-moving. To ensure video quality (quantising rate) independent of the network, a
greater bandwidth is used to be able to handle maximum frame rate during the transmission of rapidly
changing pictures.
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