Frame Rates - Motion Jpeg; Frame Rates - Mpeg-4; Bandwidth - Axis 214 PTZ User Manual

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Important!
•The figures displayed here are the values as delivered by the camera. If other restrictions are currently in force,
(e.g. bandwidth limitation) these values might not correspond to those actually received by the client.
•For Motion JPEG, these values will only be accurate as long as no frame rate limit has been specified.

Frame rates - Motion JPEG

The following test results show the frame rates in frames/second (fps) for Motion JPEG streams from the
AXIS 214 PTZ, using a compression level of 50%. Note that these values are guidelines only - actual values
may vary.
4CIF
25/30
2CIF expanded
25/30
2CIF
25/30
CIF
25/30
QCIF
25/30

Frame rates - MPEG-4

The following test results show the frame rates in frames/second (fps) for MPEG-4 streams from the AXIS
214 PTZ. Note that these values are guidelines only - actual values may vary.
The MPEG-4 test conditions:
• Compression level = 50%
• Video Object Type = Advanced Simple
• GOV structure = IP*
4CIF
17/21
2CIF expanded
17/21
2CIF
25/30
CIF
25/30
QCIF
25/30
*Note that setting the GOV structure to use "I-frames only" will increase the frame rate.

Bandwidth

As there are many factors affecting bandwidth, it is very difficult to predict the required amounts. The
settings that affect bandwidth are:
• the image resolution
• the image compression
• the frame rate
• the MPEG-4 object type
• the MPEG-4 GOV structure
• the audio settings.
There are also factors in the monitored scene that will affect the bandwidth. These are:
• the amount of motion
• the image's complexity
• the lighting conditions.
For MPEG-4, if there is only limited bandwidth available, and if this is more important than the image
quality, using a constant bit rate (CBR) is recommended. Use a variable bit rate (VBR) if the image quality
needs to be maintained at a higher level. If supported on the network, consider also using MPEG-4
multicasting, as the bandwidth consumption will be much lower.
fps
.
fps
AXIS 214 PTZ
46

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