This document presents the normative and informative elements of a transcoding interface between a Transcoding Platform and Application Platforms. The primary purpose of the interface is to request transcoding of media Content files based on specified transcoding parameters, User Equipment capabilities and application policies and to return the corresponding transcoded media files.

The notion of “Content adaptation” or “transcoding” in this document refers to the transformation and manipulation of Content (images, audio, video, text, presentation…etc.) to meet the desired targets (defined by the terminal capabilities and the application needs). Those adaptations include: media format transcoding, scaling, re-sampling, file size compression…etc.

The document describes a number of interface exchange examples and proposes syntax and semantics for the first OMA STI specification.

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