Axis Communications AXIS FD-R M12 user manual Optimizing your system, Bandwidth

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AXIS 209FD/FD-R/FD-R M12 40

Optimizing your system

To see the bandwidth and frame rate currently required by the video stream, the AXIS 209FD/FD-R/FD-R M12 provides a tool that can be used to display these values directly in the video image.

To do this, special format strings are added as part of a text overlay. Simply add #r (average frame rate in fps) and/or #b (average bandwidth in kbps) to the overlay.

For detailed instructions, please see the online help for Video &

Image > Text Overlay Settings, and the help for File Naming &

Date/Time Formats.

Important!

The figures displayed here are the values as delivered by the camera. If other restrictions are currently in force, (e.g. bandwidth limitation) these values might not correspond to those actually received by the client.

•For Motion JPEG, these values will be accurate as long as no frame rate limit has been specified.

Bandwidth

As there are many factors that affect bandwidth, it is very difficult to predict the required amounts. The settings that affect bandwidth are:

•image resolution

•image compression

•frame rate

•MPEG-4 GOV settings

•bit rate control settings

There are also factors in the monitored scene that will affect the bandwidth. These are:

•amount of motion

•image complexity

•lighting conditions

For MPEG-4, if there is only limited bandwidth available, and if this is more important than the image quality, using a constant bit rate (CBR) is recommended. Use a variable bit rate (VBR) if the image quality needs to be maintained at a higher level. If supported on the network, consider also using MPEG-4 multicasting, as the bandwidth consumption will be much lower.

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Contents User’s Manual About this Document CanadaContents Product overview Key featuresDescription Overview Setup System Options LED settings LED IndicatorsColor Description Access from a browser Accessing the CameraAxis Media Control Accessing the camera from the Internet Setting the root passwordLive View Axis 209FD/FD-R/FD-R M12 How to stream MPEG-4 Video StreamsAlternative methods of accessing the video stream MPEG-4 clientsMotion Jpeg Axis Media Control AMCConfiguring the camera Accessing the Setup linkVideo & Image Text Overlay SettingsImage Overlay/Mask Settings Overlay/MaskVideo Stream Upload and use an overlay/maskAdvanced CameraLighting Conditions Low Light BehaviorAxis 209FD/FD-R/FD-R M12 GOV Settings Live View Config Default Video FormatDefault Viewer Viewer SettingsHtml Examples External VideoAction Buttons User Defined LinksSequence Mode Event Config Event ServersEvent Types Triggered EventsHow to set up a triggered event Click Add triggered on the Event typesPre-trigger and Post-trigger buffers Scheduled EventsCamera Tampering Axis 209 FD-R/FD-R M12 Motion Detection Object SizeTips System Options SecurityIP Address Filter ReferralsDate & Time Basic TCP/IP Settings IP Address ConfigurationNetwork Services Advanced TCP/IP SettingsHttp QoS Settings QoS Quality of serviceSmtp email LED Settings MaintenanceUPnP BonjourResetting to the factory default settings Unit connectorsUsing the Control Button SupportAxis 209FD/FD-R/FD-R M12 Troubleshooting Emergency recovery procedureChecking the firmware Upgrading the firmwareAxis Support Symptoms, Possible Causes and Remedial Actions Camera is accessible locally, but not externallyCamera is inaccessible BrowserBrowser freezes Poor quality snapshot imagesMotion Detection triggers unexpectedly Technical Specifications Specification ModelsSpecification Installation General performance considerations Optimizing your system BandwidthGlossary of Terms Etrax Ethernet Token Ring Axis Axis own microprocessorSee also IP Internet Protocol Megapixel See Pixel VOP See VOPSSL/TSL Secure Socket Layer/Transport Layer Security URL Uniform Resource Locator An address on the networkAxis 209FD/FD-R/FD-R M12 Index Snmp