Multipoint video conference device and controlling method thereof

A multipoint video conference controlling method comprising:

• receiving, by a transceiver, videos from each of a plurality of clients;
• decoding, by a first processor, the plurality of videos;
• mixing, by a second processor, the plurality of decoded videos into a multipoint video;
• encoding, by the first processor, the multipoint video;
• multiplexing, by the first processor, the encoded multipoint video into a plurality of multipoint videos;
• and
• transmitting, by a transceiver, each of the plurality of multipoint videos to the plurality of clients.

A multipoint video conference device comprising:

• a transceiver configured to receive videos from each of a plurality of clients;
• a main processing unit (CPU) configured to decode the plurality of videos;
• and
• a graphics processing unit (GPU) configured to mix the plurality of decoded videos into a multipoint video,
• wherein the main processing unit (CPU) encodes the multipoint video, multiplexes the encoded multipoint video into a plurality of multipoint videos, and transmits each of the plurality of multipoint videos to each of the plurality of clients.