Table of Contents
Advertisement
AXIS M5075-G PTZ Camera
Learn more
The Stream profiles settings override the settings from the Stream tab. If you request a stream with a specific stream profile, the
stream contains the settings of that profile. If you request a stream without specifying a stream profile, or request a stream profile
that doesn't exist in the product, the stream contains the settings from the Stream tab.
Bitrate control
Bitrate control helps you to manage the bandwidth consumption of your video stream.
Variable bitrate (VBR)
Variable bitrate allows the bandwidth consumption to vary depending on the level of activity in the scene. The more activity,
the more bandwidth you need. With variable bitrate you are guaranteed constant image quality, but you need to make sure
you have storage margins.
Maximum bitrate (MBR)
Maximum bitrate lets you set a target bitrate to handle bitrate limitations in your system. You might see a decline in image quality or
frame rate as the instantaneous bitrate is kept below the specified target bitrate. You can choose to prioritize either image quality
or frame rate. We recommend that you configure the target bitrate to a higher value than the expected bitrate. This gives you a
margin in case there is a high level of activity in the scene.
1
Target bitrate
Average bitrate (ABR)
With average bitrate, the bitrate is automatically adjusted over a longer period of time. This is so you can meet the specified target
and provide the best video quality based on your available storage. Bitrate is higher in scenes with a lot of activity, compared to static
scenes. You are more likely to get better image quality when in scenes with a lot of activity if you use the average bitrate option. You
can define the total storage required to store the video stream for a specified amount of time (retention time) when image quality is
adjusted to meet the specified target bitrate. Specify the average bitrate settings in one of the following ways:
•
To calculate the estimated storage need, set the target bitrate and the retention time.
62
Advertisement
Table of Contents
