AXIS M3045-WV Network Camera
Video
•
Maximum frame rate
. To avoid bandwidth problems, the frame rate allowed to each viewer can be
Limited to
a fixed
amount. Alternatively, the frame rate can be set as
Unlimited
, which means the Axis product always delivers the highest
frame rate possible under the current conditions.
•
Overlay settings
. See
Click
Save
to apply the new settings.
About H.264
H.264, also known as MPEG-4 Part 10/AVC, is a video compression standard that provides high quality video streams at low bitrates.
An H.264 video stream consists of different types of frames such as I-frames and P-frames. An I-frame is a complete image, whereas
P-frames only contain the differences from previous frames.
About Zipstream
Axis’ Zipstream Technology is a bitrate reduction technology optimized for video surveillance. Zipstream reduces the average bitrate
in the H.264 stream by removing unnecessary data and makes it possible to allow higher resolutions, reduce storage cost or
to keep recordings for a longer time.
To reduce the bitrate, Zipstream reduces the number of bits in the areas of the image that are less interesting from a video
surveillance perspective, for example the background. Image details that are important for forensic video analysis, for example faces
and license plates, are preserved with enough number of bits.
Axis’ Zipstream Technology for H.264 conforms to the H.264 standard and is compatible with third-party clients and VMS solutions
that decode H.264 video.
MJPEG
Sometimes the image size is large due to low light or complex scenery. Adjusting the maximum frame size helps to control the
bandwidth and storage used by the Motion JPEG video stream in these situations. Setting the frame size to the
Default
setting
provides consistently good image quality at the expense of increased bandwidth and storage usage in low light. Limiting the frame
size optimizes bandwidth and storage usage, but may give poor image quality. To prevent increased bandwidth and storage usage,
the maximum frame size should be set to an optimal value.
About stream profiles
A stream profile is a set of predefined stream settings including resolution, compression, frame rate and overlay settings. Stream
profiles can be used:
•
When setting up recording using action rules. See
•
When setting up continuous recording. See
Continuous Recording on page 44
•
In the Live View page – select the stream profile from the
Stream profile
drop-down list.
To create a new profile or modify an existing profile, go to
Setup > Video
>
Stream Profiles
.
To select a default stream profile for the Live View page, go to
Setup > Live View Config
.
About ONVIF media profiles
An ONVIF media profile consists of a set of configurations that can be used to change media stream settings. ONVIF media profiles
can be used by a client to configure media stream properties.
The
ONVIF Media Profiles
page lists all preconfigured profiles. These profiles are included in the product for quick setup. You can
add, modify or remove ONVIF media profiles from this page.
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