Contextually aware client buffer thresholds

Client buffer thresholds are dynamically adjusted to provide quick start up and smooth playback in a variety of network conditions. In some examples, multiple buffer configurations are available. An initial buffer configuration may be used in typical circumstances and will yield good behavior in most cases. A modified buffer configuration can be used when limited available network resources prevent smooth playback. In some embodiments, a client buffer configuration is continuously adapted based on network throughput and data transfer rates.