Preferences/Protocols/ISMACryp

ISMACryp dynamic payload type:

Allows the user to specify the RTP dynamic payload type whose payload is to be interpreted as ISMACryp. Note that if SDP information sets an RTP dynamic payload type to "enc-mpeg4-generic" then Wireshark automatically interprets this as ISMACryp v1.1 and if the payload type is "enc-isoff-generic" then this is interpreted as ISMACryp v2.0.

ISMACryp version:

Allows the version to be set to ISMACryp v1.1 or 2.0, unless the version is automatically detected via RTP payload type (see above).

Override RTP payload type for version:

Enabling this box allows the ISMACryp version set manually above to be forced on RTP payload types whose version is detected as having a different version. A use case for doing this is correcting for incorrect SDP information, for example.

ISMACryp v1.1 parameters:

The following parameters can be set manually:

Note that the above parameters are ISMACryp v1.1 parameters that are also included in v2.0. These are normally setup via SDP but this is not currently supported.

ISMACryp v2.0 parameters:

The following parameters can be set manually:

Note that the above parameters are only valid for ISMACryp v2.0. These are normally setup via SDP but this is not currently supported.

Codec mode selection (RFC3640 for ISMACryp v1.1 only):

RFC3640 specifies access unit values for different codecs. The following "modes" are defined:

Alternatively, if User mode is ticked, user specific values can be specified below for ISMACryp v1.1. If the version if ISMACryp v2.0 only user mode values are used, irrespective of whether or not User mode is ticked.

Note that the mode is normally setup via SDP but this is not currently supported.

Following parameters only valid and used for user mode:

The following parameters can be set manually when user mode applies:

ISMACryp_Preferences (last edited 2009-03-25 13:11:38 by DavidCastleford)