Media Server 25.3
Media Server Help

# TimestampCondition

Specifies time limits for matching records, based on the record timestamps.

This parameter accepts a comma-separated list of conditions.

Each side of a condition must be an expression of the form `RecordTime [+/- optional constant]`, where `RecordTime` is:

- `startT` - the start time of a record from track `InputT`
- `peakT` - the peak time of a record in track `InputT`
- `endT` - the end time of a record in track `InputT`

In the following example, a record in the `Input1` track must start after the record in the `Input0` track, but must start not more than two seconds after the end time of the record in the `Input0` track.

        TimestampCondition=start1>start0, start1<=end0+2s

You can specify different conditions for each `InputN` track. In the following example, a record in the `Input2` track must start after the record in the `Input0` track, but must start no more than ten seconds after the end time of the record in the `Input0` track:

        TimestampCondition=start1>start0, start1<=end0+2s, start2>start0, start2<=end0+10s

To specify the same conditions for every `InputN` track, you can use the labels `startX`, `peakX`, and `endX`. This means that the following two examples are equivalent:

        TimestampCondition=start1>start0, start1<=end0+2s, start2>start0, start2<=end0+10s
        TimestampCondition=startX>start0, start1<=end0+2s, start2<=end0+10s

The conditions that you specify are combined together with the AND operator, so a matching record must meet every condition.

NOTE: This parameter is used only when you process video. When you process images or documents, this parameter is ignored and records are considered to be related only if they are associated with the same page.

Type: | String
Default: | `startX = start0`
Required: | No
Configuration Section: | TaskName
Example: |
    TimestampCondition=startX>start0, start1<=end0+2s, start2<=end0+10s
See Also: |

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Version 25.3 | Last updated July 2025

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Product: Knowledge Discovery Media Server 25.3

Topic Title: TimestampCondition