75
Motion JPEG, or MJPEG, is a digital video sequence that is made up of a series of individual JPEG images. These
images are then displayed and updated at a rate sufficient to create a stream that shows constantly updated
motion. For the viewer to perceive motion video the rate must be at least 16 image frames per second. Full
motion video is perceived at 30 (NTSC) or 25 (PAL) frames per second.
The Motion JPEG stream uses considerable amounts of bandwidth, but provides excellent image quality and
access to every image contained in the stream.
H.264 or MPEG-4 Part 10/AVC
Note
H.264 is a licensed technology. The Axis product includes one H.264 viewing client license. To install
additional unlicensed copies of the client is prohibited. To purchase additional licenses, contact your Axis
reseller.
H.264 can, without compromising image quality, reduce the size of a digital video file by more than 80%
compared to the Motion JPEG format and by as much as 50% compared to older MPEG formats. This means that
less network bandwidth and storage space are required for a video file. Or seen another way, higher video
quality can be achieved for a given bitrate.
H.265 or MPEG-H Part 2/HEVC
H.265 can, without compromising image quality, reduce the size of a digital video file by more than 25%
compared to H.264.
Note
• H.265 is licensed technology. The Axis product includes one H.265 viewing client license. Installing
additional unlicensed copies of the client is prohibited. To purchase additional licenses, contact your
Axis reseller.
• Most web browsers don’t support H.265 decoding and because of this the camera doesn’t support it in
its web interface. Instead you can use a video management system or application supporting H.265
decoding.
AV1
AV1 (AOMedia Video 1) is a license -free video coding format optimized for streaming media. AV1 enables high-
quality video streaming even in bandwidth-constrained environments. By reducing a video's bitrate, AV1
preserves video quality while minimizing data usage.
AV1 supports all major browsers, computer operating systems and mobile platforms.
Note
AV1 requires more processing power for encoding and decoding compared to some other codecs.
How do Image, Stream, and Stream profile settings relate to each other?
The Image tab contains camera settings that affect all video streams from the product. If you change something
in this tab, it immediately affects all video streams and recordings.
The Stream tab contains settings for video streams. You get these settings if you request a video stream from
the product and don’t specify for example resolution, or frame rate. When you change the settings in the Stream
tab, it doesn’t affect ongoing streams, but it will take effect when you start a new stream.
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)
AXIS Q8752-E Mk II Bispectral PTZ Network Camera
To Next Page
Loading...
