1. A video coding method performed at a video coding system including a distributing server, a managing server, multiple coding servers, and a stream merging server, wherein the distributing server is connected to the coding servers, the coding servers are connected to the stream merging server, and the managing server is connected to the distributing server, the coding servers and the stream merging server, respectively, each server configured to perform a respective task of the video coding method, the method comprising:receiving, by the distributing server, original collected video data from a coding requesting terminal;
dividing, by the managing server, each video frame image of the original collected video data into multiple subarea images;
transmitting, by the distributing server, the subarea images divided from each video frame image of the original collected video data to the multiple coding servers of which a coder is performed from a multithreaded framework into a multi-process framework, to code the subarea images in a second coding scheme and output a coded video stream;
coding, by each of the multiple coding servers, a respective subset of the subarea images in the second coding scheme and outputting, to the stream merging server, a coded video stream corresponding to the respective subset of the subarea images;
merging, by the stream merging server, the coded video streams output by the multiple coding servers into a target video stream in the second coding scheme; and
sending, by the stream merging server, the target video stream to a user terminal specified by the coding requesting terminal, wherein the user terminal decodes the target video stream from the second coding scheme into a second sequence of video frame images to be played at the user terminal.