A streaming server includes a virtual file system that stores playlist data corresponding to video programs available from at least one video source and that further stores variant playlist data corresponding to each of the video programs for streaming. A command handler receives a request for a video program from a client device. A video encoder encodes the selected video program into a plurality of video program segments in response to the request. The plurality of video program segments each have a length that is controlled based on length data, wherein the plurality of video segments includes one or more initial video program segments having at least one initialization length and steady state video program segments having a steady state length where the initialization length is less than the steady state length.