Hi Jeff,
2017-01-21 12:19 GMT-06:00 Jeff Garvas :
> This appears to work, but I'm curious if those of you more familiar with
> this scripting see a more efficient solution?
>
> set("server.socket",true)
> set("server.socket.path","path/to/socket")
>
> # points to a single blank .mp3 file
> silence = mksafe(playlist("./silence.m3u"))
>
> # If there is anything in the queue, play it. If not, play the silence
> defined above repeatedly:
> radio = fallback([ request.queue(), silence])
>
> # Connect to icecast and play the radio object defined above:
> output.icecast(%mp3(stereo=false),
> host="192.168.1.1", port = 8000,
> user = "test", password = "test", mount = "/test",
>radio)
>
> Then, this works to push items into the queue and they appear to play
> immediately:
>
> echo "queue.push /path/to/file" | socat ./socket -
>
> So some questions:
>
> - Is there a better in-script way to generate silence until the queue is
> populated without having to reference a file?
Yes, you could use a blank() source and set the switch to be insensitive to
track limits to it switches to the queue as soon as it is available:
silence = blank()
radio = fallback(track_sensitive=false, [ request.queue(), silence])
> - Does anyone have any perl, python or php examples for connecting to the
> socket that work? Struggling with that.
There used to be projects for this. Prolly some of those here:
http://liquidsoap.fm/tools.html
> - Is there any overall better way to accomplish what I'm doing?
> - What is the best way to define the meta data for each file I am placing
on
> the queue?
You can annotate requests with metadata this way:
queue.push annotate:title="Title 1",artist="Artist 1":/path/to/file
Metadata are filtered for security reason. The list of accepted metadata
tags is set through this setting:
set("decoder.metadata.export",
["artist","title","album","genre","date","tracknumber",
"comment","track","year","dj"])
> - Why would I be generating these just looping the blank mp3 file but not
> appear to actually be out of sync:
>
> 2017/01/21 02:50:44 [clock.wallclock_main:2] We must catchup 43.84 seconds
> (we've been late for 100 rounds)!
This can happen if for instance your server lacks CPU resources to
compute/encode the stream in real time.
> Some back story:
>
> I am generating audio files off of SDR dongles and each .wav file belongs
to
> a specific police/fire talk-group. I want to selectively stream certain
> files towards a broadcastify.com stream in sequence and if possible I want
> to define the metadata with the name of the agency each audio file belongs
> to, and some of these transmissions are really brief so defining it in a
> timely manner is important.
That sounds like a fun project! Hope these clarifications help..
Romain
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