System and method of processing mpeg streams for file index insertion

The invention claims a are used for the MPEG video file according formerly coded the automatic inserted reducing GOP displacement table, apparatuses, wherein the allocation from the displacement starting to play of the mode end is a standard DC access to each video frame method, device and device. The method founds a reducing GOP displacement table; one entry corresponding to each MPEG video file each GOP prefix of each video packets, and a to reduce the displacement GOP table to use the MPEG video file front MPEG video file is used at least a packets, wherein maintaining MPEG compatibility and high-pressure audio of MPEG video file/video data. The method comprising further following steps: Which is computing method for packet of GOP of the lower determines, wherein the restricted said MPEG video file reading a reading.