Configuration mode > Administration > Cameras > Multimedia database
Multimedia database

Images are stored according to the so called "ring buffer" queue. For a brief overview, see the following illustration:

OverviewClosed
When the storage capacity reaches 85%, a message is triggered via SNMP, email or as message in the client.
As soon as the storage capacity reaches 95%, the ring buffer system starts deleting the oldest image data. The image data of the prioritized cameras are the last to be deleted.

All of the image storage settings (e.g. the size of a camera's storage area on the hard disk) are configured here. To prevent sensitive image data from being overwritten, standard and alarm recordings are configured separately.

Images must be deleted in the following order:

  1. Standard recordings
  2. Alarm recordings
  3. Prioritized standard recordings
  4. Prioritized alarm recordings
  1. Select Multimedia database from the Image storage menu.
  2. Select whether the image recording has a Priority: If the storage capacity reaches 95%, the ring buffer system starts deleting the oldest image data. The recorded image data of the prioritized cameras are the last to be deleted (see order of deletion above).
  3. Select whether Standard recordings are to be carried out with this camera.
  4. Select the Recording period. You specify the exact period using a time template that you create in the time management (see Time management). By default, continuous recording is started ("Always").
  5. Select the Time limit and enter the maximum storage duration. If the time limit is exceeded, some of the oldest recordings will be deleted to free storage.
  6. You can specify a condition on available digital inputs for starting image recording.
  7. Select whether Alarm recordings are to be carried out with this camera.
  8. If you want a different stream to be used for alarm recording, select it from the Stream for alarm recording drop-down menu. The stream should be created prior to configuring in the Image storage screen.
  9. Select the Time limit and enter the maximum storage duration. If the time limit is exceeded, the oldest recordings will be deleted to free memory.
  10. In the Maximum Pre-alarm buffer (up to a maximum of 3600 seconds) field, enter a value you would like to be the maximum for any alarm scenarios that use alarm recording. This value can be changed individually on each alarm scenario.
  11. Specify a Maximum post-alarm duration to be used as the highest amount of time to be used for duration when setting up alarm scenarios that use alarm recording. This can be changed individually for each alarm scenario.
  12. In Ocularis Ultimate only: Activate automatic reduction of the frame rate of standard recordings or alarm recordings after a specified period (Standard recording data aging or Alarm recording data aging). On expiration of the specified period, the frame rate of the stored recordings is reduced to save memory (data aging).
    The data aging process only compresses the image data of the day before the configured day.ExampleClosed You record an H.264 stream with 20 images a second with an I-frame interval of one second. Data aging reduces the frame rate to one image a second, because all P-frames are deleted. Tracking data and audio recordings are always deleted.
  13. Specify the Timespan after which the recordings are to be compressed and released from the audio track.
  14. Specify the Frame rate (in fps) at which the recordings are to be stored after the time limit is exceeded. This reduces the image data to the set frame rate.
  15. Motion JPEG recordings will be reduced to the defined frame rate
  16. MPEG-4 / H.264 recordings will be reduced to i-frames (the p-frames will be deleted)
  17. Set a time frame after which a system notification is triggered if the last full frame recorded is older than the specified time.