Some notes on dumping IceCast ICY streams to get meta-data
Posted by jpluimers on 2021/06/23
Some links I want to investigate further.
This is difference in the header meta data of an icecast URL, than in the stream data.
The header meta-data you get from this cURL command (via [WayBack] linux – Catch Metadata from Icecast-audio-stream – Super User):
# curl -H "Icy-MetaData: 1" -v "http://icecast.omroep.nl:80/radio2-bb-mp3" > /dev/null % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0* Trying 145.58.53.154... * TCP_NODELAY set * Connected to icecast.omroep.nl (145.58.53.154) port 80 (#0) > GET /radio2-bb-mp3 HTTP/1.1 > Host: icecast.omroep.nl > User-Agent: curl/7.54.0 > Accept: */* > Icy-MetaData: 1 > * HTTP 1.0, assume close after body < HTTP/1.0 200 OK < Content-Type: audio/mpeg < Date: Mon, 01 Jul 2019 06:46:33 GMT < icy-br:192 < ice-audio-info: samplerate=48000;channels=2;bitrate=192 < icy-br:192 < icy-genre:Mixed < icy-metadata:1 < icy-name:NPO Radio2 < icy-pub:0 < icy-url:http://www.radio2.nl < Server: Icecast 2.4.0-kh10 < Cache-Control: no-cache, no-store < Access-Control-Allow-Origin: * < Access-Control-Allow-Headers: Origin, Accept, X-Requested-With, Content-Type < Access-Control-Allow-Methods: GET, OPTIONS, HEAD < Connection: Close < Expires: Mon, 26 Jul 1997 05:00:00 GMT < icy-metaint:16000 <
The content meta-data you can for instance get with node.js in a call like [WayBack] https://colon.roderickgadellaa.com:8001/get/id3/?url=http%3A%2F%2Ficecast.omroep.nl%3A80%2Fradio2-bb-mp3:
{"ok":true,"code":200,"error":false,"data":{"headers":{"content-type":"audio/mpeg","date":"Sat, 29 Jun 2019 17:07:03 GMT","icy-br":"192, 192","ice-audio-info":"samplerate=48000;channels=2;bitrate=192","icy-genre":"Mixed","icy-metadata":"1","icy-name":"NPO Radio2","icy-pub":"0","icy-url":"http://www.radio2.nl","server":"Icecast 2.4.0-kh10","cache-control":"no-cache, no-store","access-control-allow-origin":"*","access-control-allow-headers":"Origin, Accept, X-Requested-With, Content-Type","access-control-allow-methods":"GET, OPTIONS, HEAD","connection":"Close","expires":"Mon, 26 Jul 1997 05:00:00 GMT","icy-metaint":"16000"},"metadata":{"StreamTitle":"AUDIOLINK-AUDIO-FTP-SERVER - +EJ+ Ons Uuropener"},"timestamp":1561828023103,"cacheValidUntil":1561828038103},"request":{"protocol":null,"slashes":null,"auth":null,"host":null,"port":null,"hostname":null,"hash":null,"search":"?url=http%3A%2F%2Ficecast.omroep.nl%3A80%2Fradio2-bb-mp3","query":{"url":"http://icecast.omroep.nl:80/radio2-bb-mp3"},"pathname":"/get/id3/","path":"/get/id3/?url=http%3A%2F%2Ficecast.omroep.nl%3A80%2Fradio2-bb-mp3","href":"/get/id3/?url=http%3A%2F%2Ficecast.omroep.nl%3A80%2Fradio2-bb-mp3"}}
This was at a time where the Dutch NPO Radio 2 had trouble with their ID3 service as the first part stopped refreshing for days: "metadata":{"StreamTitle":"AUDIOLINK-AUDIO-FTP-SERVER - +EJ+ Ons Uuropener"}
Some links that will help me eventually dump this from the command-line:
- [WayBack] GitHub – TooTallNate/node-icy: Node.js module for parsing and/or injecting ICY metadata
- [WayBack] node-icy/parse.js at master · TooTallNate/node-icy · GitHub
- [WayBack] python – Get metadata from an Icecast radio stream – Code Review Stack Exchange
- [WayBack] audio – Receive ice cast meta data with python – Stack Overflow
- [WayBack] Monitoring ICY Stream Metadata Title (Python) – Stack Overflow
- [WayBack] How to get the MP3 metadata (StreamTitle) from a streaming URL · GitHub
–jeroen
The Wiert Corner - irregular stream of stuff 
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