Abstract: A method of forming a live-stream advertisement video clip is described wherein the method comprises: receiving live-stream video segments associated with a live-streaming session, wherein each of the live-stream segments is identified by a live-stream segment identifier, preferably an URL or an URI; updating a dynamic playlist, preferably a live-stream playlist, on the basis of the live-stream segments identifiers of the received live-stream segments; forming a static playlist, preferably a video-on-demand playlist, on the basis of live-stream identifiers in said updated dynamic playlist, the static playlist comprising the most recently available live-stream segment identifiers of the updated dynamic playlist and/or live-stream segment identifiers that are going to be available in the future; and, associating video and/or audio advertisement information with the live-stream segment identifiers.

Abstract: A user device including a client application (client) that enables rendering of content by a content rendering application (CRA). The client is configured for receiving user input indicating that a predefined portion of the content file is to be rendered, the portion starting at a specific time within the duration of the content file, sending to a server of the service provider an HTTP client request message requesting a playlist for the requested portion of the content file, providing to the CRA an instruction to request the playlist from the client, receiving from the server of the service provider an HTTP client response message comprising the requested playlist and storing the received playlist in a memory within the UD, receiving from the CRA an HTTP player request message requesting the playlist, and responding to the request by sending am HTTP player response message including the playlist obtained from the memory.