Process more (format, duration, extended {audio,video})

this patch tries to extract more data out of the ffmpeg output
we get duration, format data, all of the audio and video line.
for compatibility audio and video are exactly as they used to be.

Signed-off-by: Niv Sardi <xaiki@evilgiggle.com>

lib/processor.js

@@ -396,15 +396,29 @@ exports = module.exports = function Processor(command) {
   };
 
   this._checkStdErrForCodec = function(stderrString) {
-    var audio = /Audio\: ([^,]+)/.exec(stderrString);
-    var video = /Video\: ([^,]+)/.exec(stderrString);
-    var codecObject = { audio: '', video: '' };
+    var format= /Input #[0-9]+, ([^ ]+),/.exec(stderrString);
+    var dur   = /Duration\: ([^,]+)/.exec(stderrString);
+    var audio = /Audio\: (.*)/.exec(stderrString);
+    var video = /Video\: (.*)/.exec(stderrString);
+    var codecObject = { format: '', audio: '', video: '', duration: '' };
+
+    if (format && format.length > 1) {
+      codecObject.format = format[1];
+    }
+
+    if (dur && dur.length > 1) {
+      codecObject.duration = dur[1];
+    }
 
     if (audio && audio.length > 1) {
-      codecObject.audio = audio[1];
+      audio = audio[1].split(', ');
+      codecObject.audio = audio[0];
+      codecObject.audio_details = audio;
     }
     if (video && video.length > 1) {
-      codecObject.video = video[1];
+      video = video[1].split(', ');
+      codecObject.video = video[0];
+      codecObject.video_details = video;
     }
 
     var codecInfoPassed = /Press (\[q\]|ctrl-c) to stop/.test(stderrString);