The Real Time Streaming Protocol (RTSP) is a network control protocol designed for use in Multimedia Session Control Working Group (MMUSIC WG) of the Internet Engineering Task Force (IETF) and published as RFC in RFC Real Time Streaming Protocol (RTSP) (Q). request for comments publication. RFC; Real Time Streaming Protocol (RTSP). edit. RFC – A One-Time Password System · RFC – Real TIme Streaming Protocol · RFC – PIM-SM: Protocol-Independent Multicast Sparse Mode.
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– Encyclopedia > RFC
A range of The bandwidth available to the client may change during an RTSP session, e. To mark a response as “already expired,” an origin server should use an Expires date that is equal to the Date header value. The server uses it to indicate to the client how long the server is prepared to wait between Rfd commands before closing the session due to lack of activity see Section A.
A private non- shared cache may cache the media stream. The Expires header indicates a date and time after which the description should be considered stale. The Transport header MAY also be used to change certain transport parameters. Pages using RFC magic links Articles needing additional references from September All articles needing additional references Articles lacking in-text citations from July Dfc articles lacking in-text citations Articles rffc multiple maintenance issues.
This status code is also to be used if a request attempts to use a method rrc indicated during SETUP, e. It is interpreted according to [H In some cases, such as times of extremely poor network connectivity, a client may want a cache to return only those media streams that it currently has stored, and not to receive these from the origin server.
The default value for the “lower-transport” parameters is specific to the profile.
Komunikacijski protokoli in omrežna varnost
This field MUST be present in all requests and responses. In other words, a ratio of 2 has normal play time increase at twice the wallclock rate. Thus, it does not introduce additional latency.
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It sets those values not already determined by a presentation description. This enables the server to keep a single storage handle open easily.
Real Time Streaming Protocol – Wikipedia
If the copy is not up-to-date, it modifies the SETUP transport parameters as appropriate and forwards the request to the origin server. When the must-revalidate directive is present in a SETUP response received by a cache, that cache MUST NOT use the entry after it becomes stale to respond to a subsequent request without first revalidating it with the origin server. Indicates the RTP timestamp corresponding to the time value in the Range response header.
A server SHOULD not allow a client to direct media streams to an address that differs from the address commands are coming from.
The Unsupported header should be returned stating the option for which there is no support. This article has multiple issues. The address to which a stream will be sent. This specification defines the smpte Section 3.
Real Time Streaming Protocol
Indicates that the client is willing to accept a media stream whose freshness lifetime is no less than its current age plus the specified time in seconds. Overview of RTSP header fields If max-stale is assigned a value, then the client is willing to accept a response that has exceeded its expiration time by no more than the specified number of seconds.
However, ffc vendors implement proprietary transport protocols.
Note that the language specified applies to the presentation description and any reason phrases, not the media content. This is to make sure that the client-server interaction will proceed without delay when all options 3226 understood by both sides, and only slow down if options are not understood as in the case above.
Similarly, rgc such a tightly bound presentation, it is desirable to be able to control all the streams via a single control message using an aggregate URL. In the worst case, servers should send back: In other words, a range of a-b starts exactly at time a, but stops just before b.
Transports are comma separated, listed rcf order of preference. In this example, the client is only interested in the last part of the movie.
Views Read Edit View history. A stale cache entry may not normally be returned by a cache either a proxy cache or an user agent cache unless it is first validated with the origin server or with an intermediate cache that has a fresh copy of the entity. The identifier is an opaque identifier, and thus is not specific to any particular session description language. The protocol is used for establishing and controlling media sessions between end points.
Typically, a cache eliminates all transport-references that is, multicast information from the presentation description, since these are independent of the data delivery from the cache to the client. The Real Time Streaming Protocol RTSP is a network control protocol designed for use in entertainment and communications systems to control streaming media servers.
For audio, it may time-scale the audio while preserving pitch or, less desirably, deliver fragments of 22326.