33. A method for multimedia scripting via an interface to a programmable processing device, comprising the steps of: presenting a script, extracted from a container file and written in a scripting language, comprising a variable representing one or more multimedia items and a manipulation to be applied to the one or more multimedia items, wherein the scripting language comprises syntax enabling involvement of one or more application programs; invoking a process on one of one or more programmable processing units of the programmable processing device for making a graph in dependence upon the script, wherein said graph defines a relationship between (i) one or more filter functions and (ii) one or more of said multimedia items; and using the graph as a proxy for the manipulated multimedia items, wherein the graph as the proxy is referenced to render the one or more result multimedia items, and is referenced as one or more second original multimedia items in at least one other script for batch manipulation.
33. A method for multimedia scripting via an interface to a programmable processing device, comprising the steps of: presenting a script, extracted from a container file and written in a scripting language, comprising a variable representing one or more multimedia items and a manipulation to be applied to the one or more multimedia items, wherein the scripting language comprises syntax enabling involvement of one or more application programs; invoking a process on one of one or more programmable processing units of the programmable processing device for making a graph in dependence upon the script, wherein said graph defines a relationship between (i) one or more filter functions and (ii) one or more of said multimedia items; and using the graph as a proxy for the manipulated multimedia items, wherein the graph as the proxy is referenced to render the one or more result multimedia items, and is referenced as one or more second original multimedia items in at least one other script for batch manipulation. 35. The method of claim 33 wherein the multimedia item is an audio file.