fix for newer ffmpeg

The ffmpeg shipped with debian (unstable)
ffmpeg version 0.8.4-6:0.8.4-1, Copyright (c) 2000-2012 the Libav developers
ii  ffmpeg             6:0.8.4-1      amd64          Multimedia player, server, encoder and tr

changes slightly the output from '[q]' to 'ctrl-c',
this breaks the emission of the onCodecData signal.

this simple patch extends the regex to match for both cases.

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

lib/processor.js

@@ -407,7 +407,7 @@ exports = module.exports = function Processor(command) {
       codecObject.video = video[1];
     }
 
-    var codecInfoPassed = /Press \[q\] to stop/.test(stderrString);
+    var codecInfoPassed = /Press (\[q\]|ctrl-c) to stop/.test(stderrString);
     if (codecInfoPassed) {
       this.options.onCodecData(codecObject);
       this.options.onCodecData = null;