sync/lib/ffmpeg.js

59 lines
1.4 KiB
JavaScript

var Logger = require("./logger");
var Config = require("./config");
var Metadata;
var enabled = false;
function init() {
if (Config.get("ffmpeg.enabled")) {
try {
Metadata = require("fluent-ffmpeg").Metadata;
Logger.syslog.log("Enabling raw file support with fluent-ffmpeg");
enabled = true;
} catch (e) {
Logger.errlog.log("Failed to load fluent-ffmpeg. Did you remember to " +
"execute `npm install fluent-ffmpeg` ?");
}
}
}
var acceptedCodecs = {
"mov/h264": true,
"matroska/vp8": true
};
exports.query = function (filename, cb) {
if (!Metadata) {
init();
}
if (!enabled) {
return cb("Raw file playback is not enabled on this server");
}
new Metadata(filename, function (meta, err) {
if (err) {
return cb(err);
}
var video = meta.video;
if (!video) {
return cb("File has no video stream");
}
var codec = video.container + "/" + video.codec;
if (!(codec in acceptedCodecs)) {
return cb("Unsupported codec " + codec);
}
var data = {
title: meta.title || "Raw Video",
duration: meta.durationsec,
bitrate: video.bitrate,
codec: codec
};
cb(null, data);
});
};