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The frame rate of video transmitted from the device depends on connection 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 device.
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 vice versa. Actual results
generated by the device may be varying.
Image
Average range of
Resolution
data sizes for JPEG
QCIF
6 ~ 12k byte per
CIF
20 ~ 40k byte per
4CIF(D1)
50 ~ 150K byte per
Note:
Audio streaming also takes bandwidth around 32kbps. Some xDSL/Cable
modem upload speeds could not even reach up to 128 kbps. Thus, you may not be
able to receive good quality video while also 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 bit rate for
MPEG4 mode
mode
64kbps~256kbps
frame
384kbps~1024kbps
frame
768kbps~4096kbps @
frame
86
User's Manual of IVS-H125 Series
Chapter 10.
Bandwidth Estimation
Average bit rate for
32kbps~192kbps
@ 30fps
256kbps~768kbps
@ 30fps
512kbps~3076kbps
30fps
H.264 mode
@ 30fps
@ 30fps
@ 30fps
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