Matrix Elements VB-800 Manual do Utilizador descarregar pdf (Página 42)

Chapter 5. VLM - Multiple streaming and Video on demand

• date (year)/(month)/(day)-(hour):(minutes):(seconds)|now : Specify the ﬁrst date the schedule should be launched.

You can specify a date using the (year)/(month)/(day)-(hour):(minutes):(seconds) format (example:

2004/11/16-00:43:12) or using the now keyword. If now is used, the schedule will be launched as soon as possible (i.e.

as soon as it is enabled) and the current date will be used as the ﬁrst date of the schedule.

• period (years_aka_12_months)/(months_aka_30_days)/(days)-(hours):(minutes):(sec onds) : Specify the period of

time a schedule must wait for launching itself another time. (Months are considered as 30 days, Years as 12 months) If a

period is speciﬁed without a repeat property, the schedule will be launched endlessly.

• repeat (number_of_repetitions) : Specify the number of times the schedule will be launched again. For example, if a

schedule has repeat 11, it will be launched 12 times.

Control Commands

• play : Stat a broadcast media. The media begins to launch the ﬁrst item of the input list, then launches the next one and

so on. (like a play list)

• pause : Put the broadcast media in paused status.

• stop : Stop the broadcast media.

• seek (percentage) : Seek in the current playing item of the input list.

Conﬁguration Files

A VLM conﬁguration ﬁle is a list of command lines : one line corresponds to one command line.

To create a conﬁguration ﬁle, just edit a text ﬁle and type a list of VLM commands. Beware of recursive calls: you an put a

load (ﬁle) in a conﬁguration ﬁle which can lead to recursive inclusion of the same ﬁle and result in VLC’s crash.

As of versions > 0.8.1, any line where the ﬁrst non white space character is a # is considered as a comment.

Examples

This section provides several small vlm conﬁguration ﬁles.

Multiple streaming

Simple broadcasting

new channel1 broadcast enabled

setup channel1 input http://host.mydomain/movie.mpeg

setup channel1 output #rtp{mux=ts,dst=239.255.1.1,port=5004,sdp=sap://,name="Channel 1"}

new channel2 broadcast enabled

setup channel2 input rtp://@239.255.12.42:1234

setup channel2 output #rtp{mux=ts,dst=239.255.1.2,port=5004,sdp=sap://,name="Channel 2"}

control channel1 play

control channel2 play

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Matrix Elements VB-800 Manual do Utilizador Página 42