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  "title" : "Partial sync sample atom ('stps')"
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# Partial sync sample atom ('stps')

An atom that lists the partial sync samples.

## Overview

Since such samples are not full sync samples, don’t list them in the sync sample atom.

The type of the partial sync sample atom is `‘stps’`.

The layout of the partial sync sample atom is as follows.

|Partial sync sample atom data field                                                                            |Bytes   |
|---------------------------------------------------------------------------------------------------------------|--------|
|``doc://com.apple.qtff/documentation/quicktime-file-format/Partial_sync_sample_atom/Size``                     |4       |
|``doc://com.apple.qtff/documentation/quicktime-file-format/Partial_sync_sample_atom/Type`` = `'stps'`          |4       |
|``doc://com.apple.qtff/documentation/quicktime-file-format/Partial_sync_sample_atom/Version``                  |1       |
|``doc://com.apple.qtff/documentation/quicktime-file-format/Partial_sync_sample_atom/Flags``                    |3       |
|``doc://com.apple.qtff/documentation/quicktime-file-format/Partial_sync_sample_atom/Entry_count``              |4       |
|``doc://com.apple.qtff/documentation/quicktime-file-format/Partial_sync_sample_atom/Partial_sync_sample_table``|Variable|

## Topics

### Data fields

[`Size`](/documentation/quicktime-file-format/Partial_sync_sample_atom/Size)

A 32-bit integer that specifies the number of bytes in the partial sync sample atom.

[`Type`](/documentation/quicktime-file-format/Partial_sync_sample_atom/Type)

A 32-bit integer that identifies the atom type.

[`Version`](/documentation/quicktime-file-format/Partial_sync_sample_atom/Version)

A 1-byte specification of the version of this atom.

[`Flags`](/documentation/quicktime-file-format/Partial_sync_sample_atom/Flags)

A 3-byte space reserved for flags.

[`Entry count`](/documentation/quicktime-file-format/Partial_sync_sample_atom/Entry_count)

A 32-bit unsigned integer that specifies the number of sample numbers in the array that follows.

[`Partial sync sample table`](/documentation/quicktime-file-format/Partial_sync_sample_atom/Partial_sync_sample_table)

A table of sample numbers.


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