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RTP header info

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

Overview

The bits of the field are defined as follows.

Bit

Value

0

reserved

1

reserved

2

P

3

X

4

reserved

5

reserved

6

reserved

7

reserved

8

M

9

payload type

0

payload type

1

payload type

2

payload type

3

payload type

4

payload type

5

payload type

The RTP header information field contains the elements as follows:

Field

Bit#

Description

P

2

A 1-bit number corresponding to the padding (P) bit in the RTP header. This bit should probably not be set, since a server that needs different packet padding would need to unpad and repad the packet itself.

X

3

A 1-bit number corresponding to the extension (X) bit in the RTP header. This bit should probably not be set, since a server that needs to send its own RTP extension would either not be able to, or would be forced to replace any extensions from the hint track.

M

8

A 1-bit number corresponding to the marker (M) bit in the RTP header.

Payload type

9-15

A 7-bit number corresponding to the payload type (PT) field of the RTP header.

All undefined bits are reserved and must be set to zero. Note that the location of the defined bits are in the same bit location as in the RTP header.

See Also

Data fields