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This program is free software: you can redistribute it and/or modify | ||
it under the terms of the GNU General Public License as published by | ||
the Free Software Foundation, either version 3 of the License, or | ||
(at your option) any later version. | ||
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This program is distributed in the hope that it will be useful, | ||
but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
GNU General Public License for more details. | ||
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You should have received a copy of the GNU General Public License | ||
along with this program. If not, see <http://www.gnu.org/licenses/>. |
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# Restreamer server module for node.js | ||
Restreamer creates stand-alone servers for re-encoding live network audio streams on the fly. | ||
A single server instance allow any number of audio streams. It may work with video, but I haven't tried thoroughly. | ||
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## Requirements | ||
- An *NIX box with ffmpeg. | ||
- fluent-ffmpeg node module (listed as dependency in npm). | ||
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## Usage | ||
Start the server with default parameters | ||
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var rs = require('restreamer'); | ||
// Start server with default port (17856), converting to the Ogg format. | ||
restreamer.create().listen(); | ||
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At this point, | ||
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http://[your-domain]:17856/?url=[your live media URL] | ||
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will convert whichever input format the input media is, to the free Ogg format. The resulting above URL can be used as a media stream just like that. | ||
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Keep in mind that you're specifying an URL inside an URL (doh!). Encode the media URL to avoid special characters issues. | ||
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## Options | ||
A few options are available. Defaults are: listen to the 17856 port, convert to Ogg, do not allow overriding the output format. | ||
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// Listen on the 5566 port, convert input to the ac3 format | ||
restreamer.create({port: 5566, format: "ac3").listen(); | ||
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// Listen on the 5566 port, allow overriding the output format on the URL | ||
restreamer.create({port: 5566, override: true}).listen(); | ||
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// Specify the port on the listen method. | ||
restreamer.create().listen(5566); | ||
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If you choose to allow overriding the output format, your can specify the desired one in the URL, e.g.: | ||
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http://[your-domain]:17856/?url=[your live media URL]&format=ac3 | ||
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will use AC3 as the output format for the given media stream. If overriding is not allowed, the requested format will be ignored and the default one will be used instead. | ||
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## Formats | ||
Input and output formats availability are limited exclusively by your ffmpeg installation. Run ''ffmpeg -formats'' to know which ones are available in your system. | ||
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## Questions | ||
Github issues, or dev at sergiokas dot com |
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var restreamer = require("./lib/restreamer"); | ||
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var s = restreamer.create({port: 5566, override: true}).listen(); |
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module.exports = require("./lib/restreamer-server"); |
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var http = require('http'); | ||
var url = require('url'); | ||
var ffmpeg = require('fluent-ffmpeg'); | ||
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var defaults = { | ||
port: 17856, // Default listening port | ||
format: 'ogg', // Resulting format | ||
override: false // Allow overriding the format on the URL. | ||
}; | ||
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/** | ||
* Main object, start a restreamer server with the given settings (or defaults if none) | ||
* - port: port to listen for incoming requests | ||
* - format: output format to re-encode the input stream. | ||
* - override: allow overriding the format on the URL. | ||
*/ | ||
var restreamer = function(settings) { | ||
var self = this; | ||
settings = settings||{}; | ||
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// Set defaults | ||
settings.port = (settings.port||defaults.port); | ||
settings.format = (settings.format||defaults.format); | ||
settings.override = (settings.override||defaults.override); | ||
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// Request handler, if media is valid the response will never end. | ||
var server = http.createServer(function(req, res) { | ||
// Get media URL from query string | ||
var u = url.parse(req.url, true); | ||
var media = u.query['url']; | ||
var format = u.query['format']; | ||
format = (settings.override&&format)?format:settings.format; | ||
// Start converting media. | ||
if(!media) { | ||
self.log("No media for " + format + " format"); | ||
res.end(); // Die if no media | ||
} | ||
else { | ||
self.log("Streaming " + media + " to " + format + " format"); | ||
res.writeHeader({'Cache-control': "max-age=0, no-cache"}); | ||
(new ffmpeg(media)) | ||
.toFormat(format) | ||
.writeToStream(res, function(retcode, error){ | ||
console.log(retcode, error); | ||
self.log("Finished " + format + " encoding for " + media); | ||
}); | ||
} | ||
}); | ||
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// Public listen function. At this point, the listening port can be overriden. | ||
self.listen = function(port) { | ||
server.listen(port||settings.port); | ||
}; | ||
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self.log = function(msg) { | ||
console.log(msg); | ||
}; | ||
}; | ||
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restreamer.create = function(settings) { | ||
return new restreamer(settings); | ||
}; | ||
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// Export just the server function. | ||
module.exports = restreamer; |
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{ | ||
"name": "restreamer", | ||
"version": "0.1.0", | ||
"description": "Standalone server to re-encode live media streams into other output formats", | ||
"keywords": ["ffmpeg","media","audio","video","server"], | ||
"author": "Sergio Kaszczyszyn <dev@sergiokas.com>", | ||
"bugs": { | ||
"mail": "dev@sergiokas.com", | ||
"url": "github issues url" | ||
}, | ||
"repository": "git://github.com/sergiokas/restreamer.git", | ||
"dependencies": {"fluent-ffmpeg": ">=0.3.0"}, | ||
"engines" : { "node" : ">=0.4.0" }, | ||
"main": "index.js", | ||
"scripts": { | ||
"test": "nodeunit test" | ||
} | ||
} |