Property:RTSP

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BoxMatrix >> Lexicon >> Network-Protocols >> RTSP

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Protocol

Protocol:	RTSP	Wiki	Freetz	IPPF	whmf	AVM	Web
Short for:	Real-Time Streaming Protocol
Location:	Lexicon >> Network-Protocols
Weblinks:	Wikipedia.int  -  Wikipedia.de   -  RFC-2326   -  RFC-3550
Description:	Protocol for realtime stream control

Goto:   FRITZ!OS   -   Examples  -  SMW-Browser

Details

RTSP (Real-Time Streaming Protocol) is a protocol for realtime stream control with a server.
It is not used to deliver the payload stream itself, this is mostly done using RTP in conjunction with RTCP.

While RTP is a protocol for delivering a realtime stream from one host to another RTSP controls what is delivered.
RTSP is like the remote control for your TV, see the english Wikipedia link above which lists all control commands.

RTSP is somehow also what SIP is for VoIP, which does session initiation to dial the RTP partner to communicate to.
That is why RTSP is also used for SAT-IP, to "dial" the Live-TV or Radio channel to be streamed by the server.

The default port for RTSP is Port-554-tcp or Port-554-udp, the latter is rarely used.

FRITZ!OS

All cable models of the FRITZ!Box-Family since 6490 and the FRITZ!WLAN Repeater DVB-C can receive DVB-C.
Streaming access from the LAN is provided by cableinfo via M3U playlists or SAT-IP, both using RTSP links.

See the cableinfo article.

Examples

A sample RTSP URL as provided by cableinfo in the M3U channel playlist for VLC or FRITZ!App TV:

rtsp://192.168.178.1:554/
    ?avm=1          # 0= Branding / 1 = retail firmware???
    &freq=314       # Frequency in MHz
    &bw=8           # Channel bandwidth in MHz
    &msys=dvbc      # Modulation system (always dvbc)
    &mtype=256qam   # Modulation type (qpsk, 16qam - 1024qam)
    &sr=6900        # Symbol rate in KSym/s
    &specinv=0      # Spectral inversion
    &pids=0,        # Packet IDentifiers
         16,
         17,
         18,
         20,
        100,
        101,
         84,
        102,
        103,
        104,
        105,
        106,
       1176,
       2070,
       2171

See also the Vodafone DVB-C Channels page

SMW-Browser

Property:RTSP

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