| 摘要 |
The invention relates a method for two-way A/V-communication between a first user at a first end (A) and a second user at a second end (B). A webcam (A10) and a set-top box (A30) at the first end and a webcam (B10) and a set-top box (B30) at the second end poll a server (100) for commands in corresponding command register. In response to an accept message from the set-top box (B30) at the second end, the server (100) stores a stream command in a camera command register of the webcam at the first end. The webcam (A10) goes to a recording state after retrieving the stream command and stream recorded A/V-data over the communication link. In this way, existing set-top boxes to which a camera cannot be connected, can be used to provide a user interface for two-way A/V communication and decoding facilities for decoding the A/V stream. |
