Manually Adjusting Recorded Video Streams

Avigilon and third party ONVIF compliant cameras support the configuration of secondary stream compression settings.

If you have a 1-3 megapixel Avigilon H4 HD camera, you also have the option of manually adjusting the primary and secondary video stream, or allowing the system to automatically use HDSM technology. HDSM technology allows ACC software to automatically record both the primary and secondary stream so that the system can intelligently adjust video bandwidth and storage efficiencies to meet your requirements.

If your local regulations require that a specific video stream be recorded or be a certain resolution, you have the option of manually adjusting the settings to meet the requirements.

NOTE: If the camera is connected to multiple servers (including for failover), the following settings must be the same at each server connection. Otherwise, the settings may constantly overwrite each other and the camera is unable to record the correct video stream settings.

  1. In the Compression and Image Rate dialog box, select the preferred bandwidth you want the camera to record from the Recording Profile: drop down list. From the Recording Profile: drop down list, select Record High Bandwidth or Record Low Bandwidth. Selecting Record High Bandwidth enables streaming and the recording of the High Bandwidth Stream, while viewing the live low profile stream.

    NOTE: The option for selecting Record High Bandwidth or Record Low Bandwidth is applicable to third party ONVIF compliant cameras only.

    The High Bandwidth Stream is automatically disabled for recorded video but the settings are still available for you to configure the live video stream. The Low Bandwidth Stream settings are enabled.

  2. The default HDSM Auto option allows the system to use the HDSM feature for viewing live and recorded video. Be aware that if you are using the Manual setting, HDSM technology is disabled for recorded video but is still used for live video streams. If you are using the Flexible setting, HDSM technology is enabled for recorded video and can still be used for live video streams. Selecting the Flexible setting only enables the control in the Max Bit Rate: field and the Resolution: drop down list.
  3. If you need to adjust the live video stream, change the High Bandwidth Stream settings first.

    The High Bandwidth Stream settings are used to optimize the Low Bandwidth Stream settings, so some of the settings may change depending on your settings for the High Bandwidth Stream.

  4. If it is not displayed, click to display the Low Bandwidth Stream settings.

    If you prefer to record a higher resolution video, clear the Enable Low Bandwidth Stream check box and adjust the High Bandwidth Stream settings.

  5. In the Resolution: drop down list, select the preferred image resolution.
  6. In the Image Rate: bar, move the slider to select the number of images per second (ips) you want the camera to stream over the network.
  7. In the Image Quality: drop down list, select an image quality setting. An image quality setting of 1 will produce the highest quality video and require the most bandwidth. The default setting is 6.
  8. In the Max Bit Rate: field, select the maximum bandwidth the camera can use in kilobits per second (kbps).
  9. In the Keyframe Interval: drop down list, enter the preferred number of frames between each keyframe.

    To help you determine how frequently keyframes are recorded, the Keyframe Period: area tells you the amount of time that passes between each recorded keyframe.

    It is recommended that you have at least one keyframe per second.

  10. Click Apply to Devices… to apply the same settings to other cameras of the same model.

  11. Click OK.

The changes immediately take effect. The ACC Client software will continue to use HDSM technology to manage the display of live video, but recorded video will only display the configured video stream.

The data aging settings in the Recording and Bandwidth dialog box update to reflect the new recording profile settings.

 

 

Avigilon Control Center 6.6 | 20170922