Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for caching during media content rendering. In one aspect, a method performed by data processing apparatus includes receiving a request to load a digital image object for rendering; generating a first object from the digital image object; and managing the first object in a cache memory using a management object that is added to and removed from the cache memory along with the first object. In another aspect, a system includes a display device; a computer storage medium containing a cache memory; and a processor programmed to manage caching of data objects to be rendered using management objects that are cached along with the data objects, where at least one of the management objects includes a reference to a corresponding data object and an interface through which release and restoration of the corresponding data object is effected.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for caching during media content rendering. In one aspect, a method performed by data processing apparatus includes receiving a request to load a digital image object for rendering; generating a first object from the digital image object; and managing the first object in a cache memory using a management object that is added to and removed from the cache memory along with the first object. In another aspect, a system includes a display device; a computer storage medium containing a cache memory; and a processor programmed to manage caching of data objects to be rendered using management objects that are cached along with the data objects, where at least one of the management objects includes a reference to a corresponding data object and an interface through which release and restoration of the corresponding data object is effected.

Abstract: Disclosed are apparatus and methods for synchronized interleaving of multimedia data arriving from distinct sources. The invention independently buffers the incoming data streams and determines the amount of presentation time associated with each data element or byte of each data stream. The invention then draws data from the buffers at varying rates that reflect these differences, continuously presenting the withdrawn data to an interleaving module at data-streaming rates that reflect equivalent presentation-time rates. The invention also includes means for disabling synchronization when one type of data is streamed at a particularly high or low rate, resulting in buffer overload (with either the high-rate data or all data other than that transferred at the low rate).