SDP file format
| Extension | .sdp |
| Category | documents |
| Programs | Libre Office OpenOffice Draw |
| Description | SDP (Session Description Protocol) is a text-based format used to describe multimedia sessions, such as audio and video conferences. It is used to provide information about the session, such as the time it starts and ends, the media types used, the codecs used, and the IP addresses of the participants. |
| Technical details | SDP files typically begin with a version number followed by a series of session and media descriptions. Each session description begins with a "v=" field that specifies the version of SDP used, followed by a "o=" field that provides information about the session originator. The "s=" field specifies the session name, while the "t=" field specifies the time the session starts and ends. The media descriptions provide information about each stream of media in the session. Each media description begins with an "m=" field that specifies the media type, such as audio or video, followed by the port number and protocol used for that media stream. The "a=" fields provide additional information about the media stream, such as the codec used and the bandwidth required. SDP files can be used by applications to negotiate the details of a multimedia session, such as which codecs to use and how to connect to the other participants. They are often used in conjunction with other protocols, such as RTP (Real-time Transport Protocol), to provide end-to-end multimedia communication. |
| MIME type | application/vnd.stardivision.impress-packed |