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# Packet entry

A packet entry.

## Overview

The packet entry contains the data elements listed in the following table.

|Packet entry                                                                                               |Bytes        |
|-----------------------------------------------------------------------------------------------------------|-------------|
|``doc://com.apple.qtff/documentation/quicktime-file-format/Packet_entry/Relative_packet_transmission_time``|4            |
|``doc://com.apple.qtff/documentation/quicktime-file-format/Packet_entry/RTP_header_info``                  |2            |
|``doc://com.apple.qtff/documentation/quicktime-file-format/Packet_entry/RTP_sequence_number``              |2            |
|``doc://com.apple.qtff/documentation/quicktime-file-format/Packet_entry/Flags``                            |2            |
|``doc://com.apple.qtff/documentation/quicktime-file-format/Packet_entry/Entry_count``                      |2            |
|``doc://com.apple.qtff/documentation/quicktime-file-format/Packet_entry/Extra_information_TLVs``           |0 or variable|
|``doc://com.apple.qtff/documentation/quicktime-file-format/Packet_entry/Data_table``                       |variable     |

## Topics

### Data fields

[`Relative packet transmission time`](/documentation/quicktime-file-format/Packet_entry/Relative_packet_transmission_time)

A 32-bit signed integer value, indicating the time, in the hint track’s time scale, to send this packet relative to the hint sample’s actual time.

[`RTP header info`](/documentation/quicktime-file-format/Packet_entry/RTP_header_info)

A 16-bit integer specifying various values to be set in the RTP header.

[`RTP sequence number`](/documentation/quicktime-file-format/Packet_entry/RTP_sequence_number)

A 16-bit integer specifying the RTP sequence number for this packet.

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

A 16-bit field indicating certain attributes for this packet.

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

A 16-bit unsigned integer specifying the number of entries in the data table.

[`Extra information TLVs`](/documentation/quicktime-file-format/Packet_entry/Extra_information_TLVs)

A list of extra informtion that extends the hint track format without changing the version.

[`Data table`](/documentation/quicktime-file-format/Packet_entry/Data_table)

A table that defines the data to be put in the payload portion of the RTP packet.


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