| 摘要 |
<p>The present invention provides a method, a system and an MCU for achieving a multipicture in a cascade conference. A second MCU sends a video channel request to a first MCU; the first MCU allocates a video channel for the second MCU according to a preset allocation policy; the second MCU transmits a required video code stream to the first MCU through the video channel allocated by the first MCU to the second MCU. In the present invention, the problem that between two MCUs, only one path of video can be added to a multipicture when a cascade multipicture conference is held is solved, network bandwidth resources are fully utilized, and multiple paths of video code streams may be transferred in the same multipicture cascade conference, so that the multiple paths of video code streams may all be transmitted with quality and quantity guaranteed without picture quality deterioration in the multipicture due to limitation of video bandwidth.</p> |
