skip over not available videos during playlist download

lib/youtube-dl.js

@@ -21,6 +21,7 @@ var isDebug = /^\[debug\] /;
 var isWarning = /^WARNING: /;
 var isYouTubeRegex = /^(https?:\/\/)?(www\.)?(youtube\.com|youtu\.be)\//;
 var isNoSubsRegex = /WARNING: video doesn't have subtitles|no closed captions found/;
+var videoNotAvailable = /This video is not available/;
 var subsRegex = /--write-sub|--write-srt|--srt-lang|--all-subs/;
 
 /**
@@ -59,13 +60,11 @@ function processData(data, options, stream) {
 
     if (options && options.start > 0 && res.statusCode === 416) {
       // the file that is being resumed is complete.
-      stream.emit('complete', item);
-      return;
+      return stream.emit('complete', item);
     }
 
     if (res.statusCode !== 200 && res.statusCode !== 206) {
-      stream.emit('error', new Error('status code ' + res.statusCode));
-      return;
+      return stream.emit('error', new Error('status code ' + res.statusCode));
     }
 
     stream.emit('info', item);
@@ -121,6 +120,7 @@ var ytdl = module.exports = function(videoUrl, args, options) {
 function call(urls, args1, args2, options, callback) {
   'use strict';
   var args = args1;
+  var passOver = false;
   if (args2) {
     args = args.concat(util.parseOpts(args2));
   }
@@ -145,6 +145,7 @@ function call(urls, args1, args2, options, callback) {
           if (id) {
             if ((id === 'playlist') && !options.maxBuffer) { options.maxBuffer = 7000 * 1024; }
             args.push(video);
+            args.unshift('-i');
           }
         }
       } else {
@@ -155,9 +156,12 @@ function call(urls, args1, args2, options, callback) {
 
   // Call youtube-dl.
   execFile(ytdlBinary, args, options, function done(err, stdout, stderr) {
-    if (err) { return callback(err); }
+    if (err) {
+      if (videoNotAvailable.test(err.message)) { passOver = true; }
+      if (!passOver) { return callback(err); }
+    }
 
-    if (stderr) {
+    if (stderr && !passOver) {
       // Try once to download video if no subtitles available
       if (!options.nosubs && isNoSubsRegex.test(stderr)) {
         var i;
@@ -266,7 +270,6 @@ ytdl.getInfo = function getInfo(url, args, options, callback) {
 
   call(url, defaultArgs, args, options, function done(err, data) {
     if (err) { return callback(err); }
-
     var info;
     try {
       info = data.map(parseInfo);