Protocol for audio-visual file transfer includes use of descriptive file in setting up broadcast signal channel over Internet

摘要

The protocol operates via an IP network, and includes acquiring (A) a descriptive file of the source (SS), and then acquiring (B) a broadcast signal channel (SC) on the basis of the descriptive file. The third stage (C) includes acquiring on the terminal a digital data flow supporting the audio-visual materials (PG) from the signaling channel (SC). The protocol provides for broadcasting audio-visual materials (PG) from an audio-visual server to a terminal (T). The server includes a signaling source (SS) and an audio-visual source (SAV). The protocol operates via an IP network, and includes acquiring (A) a descriptive file of the source (SS). This stage includes a step of sending out a request, and reception of an HTML page, prior to the loading of the descriptive file (SDP). On the basis of this descriptive file (SDP) the next stage includes acquiring (B) a broadcast signal channel (SC). The third stage (C) includes acquiring on the terminal a digital data flow supporting the audio-visual materials (PG) from the signaling channel (SC).