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Appendix C:
Bandwidth and Video Size Estimation
The frame rate of video transmitted from the Internet Camera depends on connected bandwidth
between client and server, video resolution, codec type, and quality setting of server. Here is a
guideline to help you roughly estimate the bandwidth requirements for your Internet Camera.
The required bandwidth depends on content of video source. The slow motion video will produce
smaller bit rate generally and fast motion will produce higher bit rate and vice versa. Actual
results generated by the Internet Camera may be varying.
Image Resolution
320 x 240
(QVGA)
640 x 480
(VGA)
1280x1024
(SXGA)
1600x1200
(UXGA)
Audio streaming also takes bandwidth around 5 kbps to 64kbps. Most xDSL/Cable
modem upload speeds may not even reach up to 128 kbps. Thus, you may not be
able to receive any video while streaming audio on a 128 kbps or lower
connection. Even though the upload speed is more than 128kbps, for optimal video
performance, disabling audio streaming will get better video performance.
Average range of data sizes for
M-JPEG mode
8 ~ 20k byte per frame
20 ~ 50K byte per frame
100 ~ 200k byte per frame
600 ~ 1500k byte per frame
67
2 Mega-Pixel Wireless Fish-Eye IP Camera
Average bit rate for H.264 mode
192kbps~512kbps
@ 30fps
384kbps~1536kbps
@ 30fps
512kbps~3076kbps
@ 15fps
640kbps~6144kbps
@ 15fps
ICA-HM830W
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