SIGKILL when output stream error occurs to ensure the process is killed

Author: rhodgkins

lib/processor.js

@@ -493,7 +493,7 @@ module.exports = function(proto) {
               var reportingErr = new Error('Output stream error: ' + err.message);
               reportingErr.outputStreamError = err;
               emitEnd(reportingErr, stdoutRing.get(), stderrRing.get());
-              ffmpegProc.kill();
+              ffmpegProc.kill('SIGKILL');
             });
           }