Data stream transmission method and device

An apparatus for data stream transmission, comprising:

• at least one processor;
• one or more memories coupled to the at least one processor and storing instructions, wherein the at least one processor is configured to execute the instructions to cause the apparatus to:
• receive an original packet and a packet-loss-concealment packet that are of a data stream and that are from a sending device, wherein the packet-loss-concealment packet is generated according to a packet-loss-concealment policy;
• and
• recover a lost original packet by using the packet-loss-concealment packet.

An apparatus for data stream transmission, comprising:

• at least one processor;
• one or more memories coupled to the at least one processor and storing instructions, wherein the at least one processor is configured to execute the instructions to cause the apparatus to:
• determine a packet-loss-concealment policy based on first path status information of a path used to send a data stream;
• and
• send the packet-loss-concealment policy to a sending device for generating a packet-loss-concealment packet for the data stream.

A network system, comprises:

• a first data stream transmission apparatus that comprises:
• at least one processor;
• one or more memories coupled to the at least one processor and storing instructions, wherein the at least one processor is configured to execute the instructions to cause the first data stream transmission apparatus to:
• determine a packet-loss-concealment policy based on first path status information of a path used to send a data stream;
• generate a packet-loss-concealment packet for the data stream according to the packet-loss-concealment policy;
• and
• send the data stream on the path, wherein the data stream comprises an original packet and the packet-loss-concealment packet;
• and
• a second data stream transmission apparatus that comprises:
• one or more memories coupled to the at least one processor and storing instructions, wherein the at least one processor is configured to execute the instructions to cause the second data stream transmission apparatus to:
• receive the original packet and the packet-loss-concealment packet that are sent by the first data stream transmission apparatus;
• and
• recover a lost original packet by using the packet-loss-concealment packet.