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example-extended.js
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example-extended.js
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var express = require('express');
var app = express();
var encoder = require('./Encoder');
var fs = require('fs');
var net = require('net');
var rangeParser = require('range-parser');
var pump = require('pump');
var mime = require('mime');
var port = 9090;
var expressServer;
encoder.debug = true;
expressServer = app.listen(port, function() {
var host = expressServer.address().address;
var port = expressServer.address().port;
console.log('FFmpeg Webserver listening at http://%s:%s', host, port);
});
var activeFile;
function mediaSelected(filePath) {
activeFile = filePath;
}
app.get("/stream", function (req, res) {
res.send('<html><body><video controls autoplay><source src="http://127.0.0.1:9090/stream-with-transcode" type="video/mp4"></source></video></body></html>');
});
app.get("/stream-no-transcode", function (req, res) {
// Send file as is.
req.connection.setTimeout(Number.MAX_SAFE_INTEGER);
fs.stat(activeFile, function (err, stats) {
var filesize = stats.size;
sendFile(activeFile, filesize);
});
function sendFile (filePath, filesize) {
var range;
var filename = require('path').basename(filePath);
//res.setHeader('Accept-Ranges', 'bytes');
res.setHeader('Content-Type', 'video/mp4');
res.setHeader('Access-Control-Allow-Origin', '*');
res.setHeader('transferMode.dlna.org', 'Streaming');
res.setHeader('contentFeatures.dlna.org', 'DLNA.ORG_OP=01;DLNA.ORG_CI=0;DLNA.ORG_FLAGS=017000 00000000000000000000000000');
res.statusCode = 200;
if (req.headers.range) {
range = rangeParser(filesize, req.headers.range)[0];
res.statusCode = 206;
// no support for multi-range reqs
range = rangeParser(filesize, req.headers.range)[0];
console.log('range %s', JSON.stringify(range));
res.setHeader(
'Content-Range',
'bytes ' + range.start + '-' + range.end + '/' + filesize
);
res.setHeader('Content-Length', range.end - range.start + 1);
} else {
res.setHeader('Content-Length', filesize);
}
console.log("Streaming Video Data", res);
// Stream the video into the video tag
pump(fs.createReadStream(filePath, range), res);
}
});
app.get("/stream-with-transcode", function(req, res) {
var stats = fs.statSync(activeFile);
encoder.profiles.CHROMECAST.debug = true;
var engine = encoder.profile(encoder.profiles.CHROMECAST, stats.size);
res.setHeader('Content-Type', 'video/mp4');
res.setHeader('Accept-Ranges', 'bytes');
res.setHeader('protocolInfo', 'http-get:*:video/mp4:*');
res.setHeader('Access-Control-Allow-Origin', '*');
res.setHeader('transferMode.dlna.org', 'Streaming');
res.setHeader('contentFeatures.dlna.org', 'DLNA.ORG_OP=01;DLNA.ORG_CI=0;DLNA.ORG_FLAGS=017000 00000000000000000000000000');
// Sometimes FFmpeg may need to seek throughout a file to encode the video, or probe.
function streamNeeded (startByte, endByte, cb) {
console.info("streamNeeded", startByte, endByte);
cb(fs.createReadStream(activeFile, {
start: startByte,
end: endByte
}));
}
engine.on("streamNeeded", streamNeeded);
// Certain devices need specific HTTP Headers in order to decode the video. Use these headers. (DLNA ETC...)
engine.once("httpHeaders", function(headerInfo) {
res.writeHeader(headerInfo);
});
encoder.encode(engine, {
force: true
}, function(stream) {
stream.pipe(res, {
end: true
});
function endStream () {
console.log("stream ended, nothing more to do.");
//engine.removeAllListeners();
//res.end();
}
stream.on("end", endStream);
});
});
mediaSelected(fs.existsSync("../demo.mp4") ? '../demo.mp4' : '../demo.mkv');