lib/capabilities.js
function(flvtool, cb) {
        if (flvtool.length) {
          return cb(null, flvtool);
        }

        utils.which('flvmeta', function(err, flvmeta) {
          cb(err, flvmeta);
        });
      }
function(flvtool, cb) {
        if (flvtool.length) {
          return cb(null, flvtool);
        }

        utils.which('flvmeta', function(err, flvmeta) {
          cb(err, flvmeta);
        });
      }
function ( flvtool , cb ) { if ( flvtool . length ) { return cb ( null , flvtool ) ; } utils . which ( 'flvmeta' , function ( err , flvmeta ) { cb ( err , flvmeta ) ; } ) ; }
Search for flvmeta in the PATH
Search for flvmeta in the PATH