'Node - Can't seek audio stream
I have created a simple server that uses the fs module to stream an mp3 file to a browser which plays it in an html5 audio element. As it is, the audio streams perfectly fine, however, I can't seek through the stream, even if the part I seek to has already been buffered.
var express = require('express');
var app = express();
var fs = require('fs');
app.get('/', function (req, res) {
var filePath = 'music.mp3';
var stat = fs.statSync(filePath);
res.writeHead(200, {
'Content-Type': 'audio/mpeg',
'Content-Length': stat.size,
});
var readStream = fs.createReadStream(filePath);
readStream.pipe(res);
});
Other similar Q&As have suggested to add the Content-Range header, but I can't find a simple example of how to do that. Others have said to use the 206 Partial-Content header, but when I do that the audio won't play at all.
Here's a demo (testing on chrome on windows)
Solution 1:[1]
Adjusted code from one of the unaccepted answer in this question:
var express = require('express'),
fs = require('fs'),
app = express()
app.get('/', function (req, res) {
var filePath = 'music.mp3';
var stat = fs.statSync(filePath);
var total = stat.size;
if (req.headers.range) {
var range = req.headers.range;
var parts = range.replace(/bytes=/, "").split("-");
var partialstart = parts[0];
var partialend = parts[1];
var start = parseInt(partialstart, 10);
var end = partialend ? parseInt(partialend, 10) : total-1;
var chunksize = (end-start)+1;
var readStream = fs.createReadStream(filePath, {start: start, end: end});
res.writeHead(206, {
'Content-Range': 'bytes ' + start + '-' + end + '/' + total,
'Accept-Ranges': 'bytes', 'Content-Length': chunksize,
'Content-Type': 'audio/mpeg'
});
readStream.pipe(res);
} else {
res.writeHead(200, { 'Content-Length': total, 'Content-Type': 'audio/mpeg' });
fs.createReadStream(filePath).pipe(res);
}
});
Sources
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Source: Stack Overflow
Solution | Source |
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Solution 1 |