Filter out radio mp2 stream

Bengt Madeberg

With the "new" transcode and filter options, I tried to get a pure "radio stream" from a MUX (Radio 1 on Astra 2) and use it to my Logitech Media Center. I have tested many configurations without success. In VLC I see one single stream, with sampling 48 kHz and 192 kbit/s bitrate and it plays fine but can't get it accepted by LMS. Anyone knows how to do it ?

Hanspeter Müller

I've tried the same, sadly with the same result. I guess the problem is, that it's still in a container and not just an audio stream. You could try to request a feature for a container-less, single stream transcoder option, maybe someone of the developers still uses this archaic medium and has a heart for us :D

/hp

Bengt Madeberg

I found a solution for this. Use "IPTV remuxer for tvheadend", normally used as input for tvh but can also be used at the output with some modifications...

https://github.com/Jalle19/node-ffmpeg-mpegts-proxy

Change in options.js


var getOutputAvconvOptions = function(source) {
        var options = [
/*              '-vcodec', 'copy',*/
                '-acodec', 'copy',
                '-metadata', 'service_provider=' + source.provider,
                '-metadata', 'service_name=' + source.name,
/*              '-f', 'mpegts'*/
        ];

and in node-ffmpeg-mpegts-proxy.js change to mpeg output insted of mpegts

// Tell the client we're sending MPEG data
response.writeHead(200, {
'Content-Type':'audio/mpeg'

});

and in sources.json e.g.

{ "name": "R1", "provider": "BBC", "url": "/BBC_R1.mp2", "source": "http://server1a:9981/stream/channelnumber/3002", "avconvOptions": { "input": [ ], "output": [ "-f", "mp2" ] } },

An in LMS:

http://server1a:9128/BBC_R1.mp2

Works great, 192 kbit/s instead of lousy 48 kbit/s...