Stream Profiles; Camera Settings - Axis Q3709-PVE User Manual

AXIS Q3709-PVE Network Camera
Video
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 bit rates.
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.
The H.264 stream settings can be configured from the Video > Video Stream page. Select the H.264 tab. The settings defined in this
page will apply to all H.264 streams that do not use a stream profile.
The GOP length is the number of frames between two consecutive I-frames. Increasing the GOP length may save considerably on
bandwidth requirements in some cases, but may also have an adverse affect on image quality.
The Axis product supports the following H.264 profile(s):
• Baseline. The Baseline profile is recommended for clients that don't support CABAC entropy coding.
• Main. The Main profile provides higher compression with maintained video quality compared to the Baseline profile but
requires more processing power to decode.
• High. The High profile provides reduced bit rate and higher compression with maintained video quality compared to the
Main profile but requires more processing power to decode.
To apply the settings, click Save.
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.

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 Events on page 33.
• When setting up continuous recording. See Continuous Recording on page 39.
• In the Live View page – select the stream profile from the Stream profile drop-down list.
For quick setup, use one of the predefined stream profiles. Each predefined profile has a descriptive name, indicating its purpose. If
required, the predefined stream profiles can be modified and new customized stream profiles can be created.
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.

Camera Settings

The Video > Camera Settings page provides access to advanced image settings for the Axis product.
Capture Mode
Capture mode defines the maximum resolution and maximum frame rate available in the Axis product. A capture mode with a large
maximum resolution has a reduced maximum frame rate and vice versa. The capture mode setting also affects the camera's angle of
view as the effective size of the image sensor differs between capture modes.
Capture mode is set the first time the product is accessed. Select the desired capture mode and click OK.
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