Administrator Settings - Abus eyseo. TV7206 Guide D'installation

Administrator settings

Configuration / video
Best performance is produced by
the maximum frame rate with best
video quality and minimum network
bandwidth. The three factors "Max
frame rate", "Constant bit rate" and
"Fixed quality" on the video
configuration page are interrelated.
Mobile access to the Dual-stream videoserver
Many modern mobile telephones support access to MPEG4 videostream and GSM-AMR audio data.
Due to restricted bandwidth, only a maximum resolution of 176x144 pixels is supported. You should
select 176x144 @ 5fps @ Fix Bitrate 40 Kbps. The player to play the RTSP-stream must support
MPEG4-Simple Profile (e.g. Packet Video Player).
For high frame rates
To obtain a good visual realtime effect (more than 20 frames/s), the network bandwidth must be
sufficiently large. If the network bandwidth is higher than 1 Mbps, the value for the "Constant bit rate"
must be set to 1000Kbps or 1200Kbps and the "Fixed quality" to the highest quality. In the PAL
system, the maximum frame rate is 25, and in the NTSC system, 30 frames per second. If your
network bandwidth is more than 384Kbps, you can fix the bit rate according to your bandwidth and the
maximum frame rate to 25 or 30 fps (frames per second). If the pictures in your environment are
changed drastically, you can reduce the maximum frame rate to 20 frames per second to set the data
transmission rate lower. This gives you a better video quality, and the human eye cannot distinguish
between 20, 25 and 30 frames per second. If the network bandwidth is less than 384 Kbps, adjust the
"Constant bit rate" according to the bandwidth and try to get the best performance by fine-tuning the
"Max frame rate". In a "slow" network, a high frame rate results in unclear, distorted images. Another
way to improve quality is to select "160x120" in the "Size" option, or "320x240" for a larger view of the
pictures. Video quality also depends on the number of users in the network. Performance can also be
affected by a bad connection and by a restriction of the network burst.
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