Axis Communications P3915-R user manual Stream Profiles, 264, Click Save to apply the new settings

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AXIS P3915–R Network Camera

Video and Audio

•Maximum frame rate. To avoid bandwidth problems, the frame rate allowed to each viewer can be Limited to a fixed amount. Alternatively, the frame rate can be set as Unlimited, which means the Axis product always delivers the highest frame rate possible under the current conditions.

•Overlay settings. See Overlay on page 21.

Click Save to apply the new settings.

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 GOV length is the number of frames between two consecutive I-frames. Increasing the GOV length may save considerably on bandwidth requirements in some cases, but may also have an adverse affect on image quality.

The Axis product supports two H.264 profiles. The Main profile provides higher compression than the Baseline profile with the same video quality, but requires more processing power to decode.

The bit rate can be set as Variable bit rate (VBR) or Constant bit rate (CBR). VBR adjusts the bit rate according to the image complexity, using up more bandwidth for increased activity in the image, and less for lower image activity. When the activity in the scene increases, the bit rate would usually increase as well. If there is a surplus in bandwidth, this may not be an issue and selecting Variable bit rate (VBR) will be sufficient. But if bandwidth is limited, it is recommended to control the bit rate by selecting Constant bit rate (CBR). When the activity in the scene increases, VBR adjusts the bit rate according to the complexity, using up more bandwidth for increased activity in the scene, and less for lower scene activity. CBR allows you to set a target bit rate that limits the bandwidth consumption.

The CBR target bit rate works like the ceiling of a tent. It limits the bit rate, while maintaining some flexibility . The bit rate may bounce up and down within the set target but when it nears the set target value, the limitation kicks in. However, because CBR will always prioritize a continuous video stream, it allows temporary overshoots from the target bit rate. Because setting a target value prevents the bit rate from increasing, frame rate and image quality are affected negatively. To partly compensate for this, select which variable shall be prioritized, frame rate or image quality. Not setting a priority means that frame rate and image quality are equally affected.

The current bit rate can be set to appear as text overlay. Under Overlay Settings, select Include text and enter the modifier #b in the field.

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 34.

•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 & Audio > Stream Profiles.

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Contents Axis P3915-R Network Camera Liability About this DocumentLegal Considerations Intellectual Property RightsSupport Learn MoreTable of Contents Axis P3915-R Network CameraConnectors Performance Considerations For technical specifications, see Connectors and ButtonsNetwork Connector Hardware OverviewAudio Connector LED IndicatorsConnector SD Card SlotAxis P3915-R Network Camera Access from the Internet Accessing the ProductAccess from a Browser Set the Root PasswordControls on the Live View Set Power Line FrequencyLive View Click Use HttpsPTZ Controls Go to Setup EventsAxis Media Control viewer toolbar Manual TriggerAxis P3915-R Network Camera How to Stream H.264 Media StreamsAxis Media Control AMC Alternative Methods of Accessing the Video Stream QuickTimeTM. The following paths can be usedAxis P3915-R Network Camera Setting Up the Product Basic SetupPixel Counter Video and AudioVideo Stream ImageClick Save to apply the new settings Stream Profiles264 Camera Settings Set Shutter to View AreaShutter & Gain To add a new view areaOverlay Image Select an Aspect ratio and a Video stream resolutionOverlay Go to Video & Audio Video Stream and select the Image tabUsing Overlay Text in an Action Rule Go to Video & Audio Overlay ImageGo to Events Action Rules Audio Settings Privacy MaskAudio Input Axis P3915-R Network Camera Viewer Settings Live View ConfigDefault Viewer for Browsers Browser Viewer DescriptionOutput Buttons Go to Setup Live View ConfigUser Defined Links For more information about I/O ports, see I/O Ports onPTZ Pan Tilt Zoom Preset PositionsGo to PTZ Preset Positions Guard TourControl Queue Operator Same as administrator but with lower priorityAdvanced ControlsMotion Detection DetectorsCamera Tampering Go to Detectors Camera TamperingSet Up Motion Detection Windows Motion Detection ParametersAudio Detection Go to Detectors Audio DetectionApplications Install ApplicationGo to Setup Applications Application LicensesAxis P3915-R Network Camera Events PTZ Control Setting Up an Action RuleTime Go to Events Action Rules and click AddRecipient Use with action RecipientsFallback Action Go to Events Recipients and click AddRecurrences Setting Up an Email RecipientSchedules Go to Events Schedules and click AddAxis P3915-R Network Camera Continuous Recording RecordingsRecording List Go to Recordings ListLanguages Users System OptionsSecurity IP Address FilterDate & Time Go to Setup System Options Security CertificatesClick Install certificate and upload the certificate CertificatesIPv6 Address Configuration Basic TCP/IP SettingsIPv4 Address Configuration NetworkLinux/Unix example Assign IP Address Using ARP/PingLinux/Unix syntax Axis Video Hosting System AvhsAdvanced TCP/IP Settings Http NAT traversal port mapping for IPv4QoS Quality of Service SocksRTP/H.264 StorageUPnPTM BonjourNetwork Share MaintenancePorts & Devices PortsSystem Overview SupportSupport Overview Logs & ReportsScripting Reset to Factory Default SettingsPlain Config File UploadAxis P3915-R Network Camera Checking the Firmware TroubleshootingEmergency Recovery Procedure Upgrading the FirmwareSymptoms, Possible Causes and Remedial Actions Setup Video & Audio Camera Settings Status and Network indicator LEDs are flashing red rapidlyVideo and image problems, general Key framesNo audio SettingsStorage and disk management problems Poor audio qualityTechnical Specifications Installation Function/group Specifications Network SecurityAlarm actions Maintenance General CasingConnectors Performance Considerations M2.2

P3915-R specifications

The Axis Communications P3915-R is a robust and versatile network camera designed specifically for demanding surveillance environments. This camera model is part of the Axis P39 series, which is renowned for its exceptional durability and performance in various conditions. Engineered for outdoor use, the P3915-R is particularly suitable for locations that require reliable, high-quality video monitoring, such as transportation hubs, airports, and public areas.

One of the standout features of the P3915-R is its IP66 and IK10 ratings, which make it resistant to both water and vandalism. This rugged construction ensures the camera can withstand harsh weather conditions, including rain and extreme temperatures, while also being capable of enduring impacts from potential vandalism. The built-in heater and fan further enhance its performance in varying outdoor temperatures, enabling the camera to operate effectively in both hot and cold climates.

In terms of video quality, the P3915-R supports 1080p resolution at up to 30 frames per second, ensuring clear and detailed images even in low-light situations. The camera is equipped with advanced imaging technologies, including Wide Dynamic Range (WDR) Forensic Capture, which improves visibility in scenes with varying lighting conditions. This feature is vital for capturing critical details in high-contrast environments.

Another technological enhancement is Axis’ Zipstream technology, which optimizes bandwidth and storage usage without compromising image quality. By significantly compressing video data while retaining the essential details for forensic purposes, Zipstream aids in efficient storage management and reduces costs associated with data transmission.

The P3915-R also supports various video analytics capabilities, including motion detection and automatic tracking, which can be customized to meet specific security needs. With two-way audio support, the camera allows for interactive communication, making it a versatile tool for real-time monitoring and response.

Flexible installation options are another significant characteristic of the P3915-R. Its robust design allows for easy mounting on walls or ceilings, and given its compact size, it can fit into tight spaces seamlessly. Overall, the Axis Communications P3915-R combines advanced imaging, robust durability, efficient data management, and flexible installation options, making it a preferred choice for security professionals seeking reliable surveillance solutions in demanding environments.
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