Operation-based content packaging

In embodiments, apparatuses, methods and storage media are described that are associated with packaging of content. In embodiments, a bytemap file may be associated with an output packaging format for output content. The bytemap file may, in various embodiments, contain instructions that, when performed by a transpackager may generate output content based on one or more encoded content files. In order to generate output content starting at a specific requested offset, a bytemap index may contain mappings between offsets and instruction locations within the bytemap file. Thus, in response to a request for output content at an offset, an instruction location may be identified in the bytemap index, and instructions applied to the encoded content files starting at the identified location to generate the requested output content. Other embodiments may be disclosed and claimed.