BoxParser.createFullBoxCtor("tsel", "TrackSelectionBox", function(stream) {
this.switch_group = stream.readUint32();
var count = (this.size - this.hdr_size - 4)/4;
this.attribute_list = [];
for (var i = 0; i < count; i++) {
this.attribute_list[i] = stream.readUint32();
}
});