What Are Encoding Settings?
Encode settings are video image quality settings that are set for each camera. This menu includes the video FPS, bitrate, compression rate, and resolution. Setting these settings correctly based on the install site can help save network bandwidth, HDD space, fix network lag, and much more. Each cameras video encode mode should be set up for every job based on how good the locations network is and how much stuff is already on it, and based off how the end user will be viewing the recorder/recordings the most.
FINDING THE VIDEO MENU
- First open the recorder in Internet Explorer by navigating to the recorders IP address.
- Login to the recorder (Default login is Username: admin Password: 123456)
- After logging in navigate to Setup > Camera > Video (Change password now notification may
need to be closed in order to find the Setup menu)
- Right click on the live view and select Menu
- Login to the main menu (Default login is Username: admin Password: 123456)
- After logging in Navigate to Camera > Encoding
Storage mode is a setting that can be set for each camera individually. This allows for users to set if the
selected camera stores it mainstream to the HDD or if it stores its Sub Stream to the HDD. This can
allow users to save HDD space by letting less important cameras recorder and save at a lower quality.
Image format allows for users to select the resolution and default frame rate that the cameras
mainstream will run and record at. Once the Image format is selected the “Resolution” cannot be set
differently under the Mainstream settings
Mainstream is the highest quality stream that can be used for streaming and recording. This stream will
use the most network bandwidth and HDD space. Mainstream is normally used for recording so that
way backups always have the best quality, and for viewing cameras on the local network (if a local
computer can handle the resolution).
Stream Type has two settings Normal and Event. Normal Encode settings are for when there is no
motion being detecting in the camera image, this is regardless of if you are recording motion or not
these Normal encode settings will need to be set. The other setting is Event Encodes these encode
settings are for when motion is being detected in the image, also for when other events are triggered
such as alarms. Event Encodes should normally be set the same as the Normal Encode settings. In some
situations where needed or internet speeds are a issue, Normal Encode settings can be set to a very low
quality and then the Event Encodes can be set higher. This will allow for more HDD space and less
Bandwidth to be used when there is no motion or alarms going off, but customers still need 24-hour
Video Compression allow for users to select the type of compression that the camera will use to store
on the HDD and for viewing. The two options for compression are H.264 and H.265. H.264 is widely
supported on all industry recorders as a standard it is an older technology that can save a small amount
of bandwidth. H.265 is the newest compression technology that can be used on Uniview 4MP cameras
and is now becoming more and more supported over the security industry. This compression rate can
save more bandwidth and HDD space than H.264 and keep a better-quality image when compressing.
Resolution is the number of pixels the camera image is displaying at. This also tells you the Mega Pixel
for example, 1920x1080 resolution is a 2MP camera and 2592x1520 is 4MP. This setting in Uniview cameras cannot be changed in the Resolution drop down this setting is changed by changing
the Image Format option.
Bitrate Type will be able to be set to VBR or CBR depending on the camera’s current Smart Encoding /
U-Code setting. U-Code only allows for VBR to be used this option will automatically be set if U-Code is
enabled and then be grayed out. VBR stands for Variable Bit Rate this means the cameras streaming bit
rate will always be changing, lower bit rates when there is no motion in the image and a higher bit rate
when there is motion in the image. CBR is a constant bit rate, this setting will also stream the video at
the bitrate that is set in the Bit Rate setting.
Image quality can be set to prioritize bit rate and bandwidth usage over image quality. When Bitrate
Type is set to CBR the Image Quality is always set to Highest and then grayed out. When Bitrate Type is
set to VBR the Image quality can be set to highest, higher, medium, low, lower, and lowest. The lower
the setting the lower the image quality but the less bandwidth and HDD space the camera will take
when recording / streaming.
Bit Rate is how much data each camera is using in each packet that it is storing to the HDD and packet
that it is sending over the network. Bit Rate is measured in kbps so when looking at the numbers
selectable in the drop-down device by 1024 to get the Mbps that the camera is using. IE. 1024
kbps is 1 mbps and 2048 kbps is 2 mbps. The higher Bit Rate that is set the more data that the camera
will send over the network the more bandwidth it will use. The higher the Bit Rate the mode data it will
also store on the HDD this means less recording time that can be kept. It is suggested never using more
than 4096 kbps on a jobsite with multiple camera for each camera.
Frame Rate is how many images are placed into one second of data from the camera. The higher the
frame rate the mote times the image is updated in that second. This will make the image flow a lot
smoother than a lower frame rate that has less images in one second. Frame rate will affect storage
space on the HDD, but it is very minimum at the end of the HDD space. Normally only a couple
hours will be lost in the end.
I FRAME INTERVAL
I Frame Interval is how often the background of an image is updated when there is no motion and
nothing in the background has changed. This setting is normally set up for double the FPS. IE if the
camera is set on 25 FPS the I Frame Interval will be set to 50. On cameras where there is never a lot of
motion or changes the I Frame interval can be set to 3 or 4 times the FPS.
Smoothing is another option for prioritizing bit rate over quality of the image. If the slider is set more on
the Clear side the image quality will be better and more stable but will require more bandwidth and
HDD space. If the slider is more on the Smooth side the image will be more pixelated and less stable but
require less HDD space and bandwidth.
Audio Stream checkboxes for on and off are to enable audio if the camera that is connected to the
channel has a microphone added to it.
Smart Encoding has how U-Code is turned on. There are normally two options Basic and Advanced.
Basic Mode will save about 75% of bandwidth and HDD space used and will work the best when using
Uniview cameras on a 3rd party recorder. Advanced mode will save up to about 85% of bandwidth and
HDD space and will sync well with Uniview recorders.
SUB STEAM / THIRD STREAM
Sub Stream is a secondary stream on cameras that are normally set to a very low bit rate and resolution
and are used when viewing the camera remotely on a wireless data connection. This will allow for
cameras to steam a lot smoother with less lag and save data on user’s wireless plans. This feature will
also help when viewing remotely from a web browser or computer software. If the recorders location
has a slow network or upload speed viewing the camera in sub stream remotely can help get the
camera to display live video with less lag.