Real-time video transmission method

The embodiment of the invention discloses a real-time video transmission method. The method comprises the following steps: a sending module obtains real-time video data and first data to be retransmitted, and performs importance marking on the real-time video data based on code stream types to obtain marking data; the sending module screens out redundant data in the first to-be-retransmitted data to obtain second to-be-retransmitted data; sending the second to-be-retransmitted data marked as important to a to-be-transmitted queue of the processing module based on the to-be-transmitted time sequence, and then sending the second to-be-retransmitted data marked as unimportant and the marking data to the to-be-transmitted queue based on the to-be-transmitted time sequence; when the processing module detects that the to-be-sent data exists in the to-be-sent queue, the processing module sequentially sends the to-be-sent data to the receiving module based on the queue sequence; the receiving module decodes the recei