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changes.mady.by.user Sofya Uyutova

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In the The Hot record mode the video is recorded with a larger a video recording mode in which the frame rate compared to the set valueof the video stream increases when an alarm is detected.

Info
titleNote.

The Hot record mode settings are not applied when the Camera object is created under the Video capture device object using H264, MPEG4 or H265 codec.

By default, this mode is disabled: when an alarm is detected, the video is recorded at the frame rate specified in the Recording frame rate parameter (see Configuring video frame rate) or at the default rate if the Recording frame rate parameter is not specified. To enable the Hot record mode, do the following:  

  1. Go to the Hardware tab in the System settings dialog box (1).
  2. Select the Camera object corresponding to the required camera in the objects tree (2). The settings panel for the selected object is displayed on the right of the Hardware tab.
  3. Go to the Basic settings tab on the settings panel of the Camera object (3).
  4. In the Recording frame rate field "Hot record" rate field (4) specify the frame rate for hot recording of the video to be recorded (4).
  5. In the Hot record rate field specify the frame rate for the alarm hot recording (5).
  6. alarm event.
    The value specified in the "Hot record" rate ​​parameter allows you to calculate the time interval (in milliseconds), after which it is necessary to capture a frame for recording into the archive. The calculation is made according to the formula:
    Time interval = 1000 / The value specified in the "Hot record" rate ​​field
    The value of this parameter should not exceed the value of the frame rate with which the video signal is digitized.

  7. In the "Hot record" time field (5) specify the interval in seconds from the moment of alarm registration or the start of recording, In the Hot record time field specify the interval in sec during which the video is being recorded at with the frame rate that has been set in the specified in the "Hot record rate field, from the moment of alarm registration (6)" rate ​​field.

    Info
    titleNote.
     If there is an end of alarm event while recording in the hot record mode, then recording to the archive will be with the same rate as hot record until the end of specifyied specified interval.  


  8. Click the Apply button (76).
Info
titleNote.
If the Recording frame rate parameter (Camera object, Basic settings tab) is set to non-zero, regardless of its value of recording to the archive is performed only by anchor frames if H.264 codec is in use. If the "Hot record" rate parameter for H.264 codec is also in use, then the recording to the archive will be performed by anchor frames too. If the Recording frame rate parameter is set to 0 or not set, all frames are recorded to the archive.

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