Method for encoding live-streaming data and encoding device

A system for transferring live-streaming data, comprising:

• an encoding device and a decoding device;
• wherein
• the encoding device is configured to generate a fidelity encoded data frame by encoding a current data frame based on a fidelity bit rate and first state information associated with the current data frame;
• acquire a compressed encoded data frame corresponding to history data frame;
• combine the compressed encoded data frame and the fidelity encoding data frame into a data composite packet;
• and send the data composite packet to the decoding device, wherein the current data frame is a data frame in the live-streaming data, the compressed encoded data frame is acquired by encoding the history data frame based on compression bit rate and second state information associated with the history data frame, and the history data frame is a data frame corresponding to a history moment before the current data frame;
• and
• the decoding device is configured to generate a compressed data frame and a first fidelity data frame by decoding the data composite packet;
• generate corresponding live-streaming data based on the compressed data frame and the first fidelity data frame by replacing, in response to receiving loss information of a second fidelity data frame, the second fidelity data frame with the compressed data frame, wherein the second fidelity data frame is a data frame generated based on the history data frame and the fidelity bit rate.

An encoding device, comprising:

• a processor;
• and
• a memory configured to store at least one instruction executable by the processor;
• wherein the processor, when executing the at least one instruction, is caused to perform:
• acquiring first state information associated with a current data frame, wherein the current data frame is a data frame in live-streaming data;
• generating backup state information by backing up the first state information;
• generating a first encoded data frame by encoding the current data frame based on a first bit rate and the first state information, wherein the first state information is updated upon completion of the encoding;
• generating reset state information by resetting the updated first state information based on the backup state information, wherein the reset state information is consistent with the first state information prior to the updating;
• generating a second encoded data frame by encoding the current data frame based on a second bit rate and the reset state information, wherein the second bit rate is different from the first bit rate;
• and
• generating a first target data frame corresponding to the current data frame based on the first encoded data frame and the second encoded data frame.