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# SampleInterval

Analysis tasks usually do not process every frame of a video.

This parameter specifies the minimum interval between frames that are selected to be analyzed, in milliseconds. For example, if you set `SampleInterval=125` then any two frames analyzed by the task will be separated by at least 125 milliseconds. This means that at most eight frames are analyzed for every second of video.

If the parameter IngestRate is set to `0`, the interval between the frames selected for analysis will be as close as possible to `SampleInterval`.

If the parameter IngestRate is set to `1`, the interval between the frames selected for analysis will also be as close as possible to `SampleInterval`. However, if the analysis task cannot process frames at this rate, it will increase the sample interval. For example, if you set `SampleInterval=125` but the task is not able to analyze eight frames per second, it increases the sample interval and processes fewer frames than you requested.

In most cases HPE recommends that you use the default value of `SampleInterval`. If you have set `IngestRate=1` and a task significantly increases the sample interval, or if you have set `IngestRate=0` and processing takes a long time, it might be due to the server having insufficient resources.

Type: | Integer
Default: | 100
Required: | No
Configuration Section: | TaskName
Example: | `SampleInterval=125`
See Also: | IngestRate

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