I'm building a nodejs app that streams a video from the disk to the user. Thanks to this question, i have a working video feed for a "static" video file that is stored on disk, so far so good.
My problem is that i need to transcode the video on the fly, to do this i used fluent-ffmpeg and i was successful at implementing the transcoding, but the HTML5 player only shows the first 3-4s of the video, and then stops. I'm guessing the problem is the filesize, but even when i harcode it nothing changes.
Any idea ? Thanks a lot :)
var file = 'Big_Buck_Bunny_1080p_surround_FrostWire.com.mp4'; fs.stat(file, function(err, stats) { var range = req.headers.range if (!range) { // 416 Wrong range return res.sendStatus(416) } var positions = range.replace(/bytes=/, "").split("-"); var start = parseInt(positions[0], 10); var total = stats.size; var end = positions[1] ? parseInt(positions[1], 10) : total - 1; var chunksize = (end - start) + 1; res.writeHead(206, { "Content-Range": "bytes " + start + "-" + end + "/" + total, "Accept-Ranges": "bytes", "Content-Length": chunksize, "Content-Type": "video/mp4" }) var stream = fs.createReadStream(file, { start: start, end: end, autoclose: true }) .on("open", function() { const ffmpegCommand = ffmpeg() .input(stream) .outputFormat('mp4') .outputOptions([ '-movflags faststart', '-frag_size 4096', '-cpu-used 2', '-deadline realtime', '-threads 4' ]) .videoBitrate(640, true) .audioBitrate(128) .audioCodec('aac') .videoCodec('libx264') .output(res) .run() }).on("error", function(err) { res.end(err) }) }) 
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