Video playback system and method

A method for playing videos, comprising:

• a streaming media server sending an original video stream to a real-time video intelligent analysis system;
• the real-time video intelligent analysis system performing real-time analysis on the video stream output by the streaming media server, and outputting a text stream corresponding to the video stream to the streaming media server;
• the streaming media server storing the original video stream and the text stream respectively, and when receiving a request for mixing videos sent by a video surveillance center, the streaming media server sending the video stream and the text stream respectively to the video surveillance center;
• the video surveillance center receiving the video stream and the text stream output by the streaming media server, compensating for a lost text frame in the text stream according to the video stream, and outputting a mixed video after overlaying the video stream and the text stream after compensation;
• wherein the step of the video surveillance center compensating for a lost text frame in the text stream according to the video stream comprises:
• matching the video stream received from the streaming media server with the text stream corresponding to the video stream;
• determining a video frame overlaying format according to a matched result;
• and
• compensate for the lost text frame according to a result of determining the overlaying format;
• wherein, the step of matching the video stream received from the streaming media server with the text stream corresponding to the video stream comprises:
• when a quantity of the video frames received by the video surveillance center reaches a preset threshold, matching the video frame in the video stream with the text frame in the text stream having equal timestamp to that of the video frame;
• wherein,
• if all of three consecutive video frames match successfully with the text frames, the matching is successful, otherwise, the matching is failed.