A live broadcast time shifting system and method based on HLS protocol multi-level management

Abstract

The invention relates to a live broadcast time shifting system and method based on HLS protocol multi-level management. The system comprises a user terminal and a streaming media server with a fragmentation module and a management module. The fragmentation module receives the current video stream, splits the current video stream according to a preset slicing time length and stores the current video stream in the management module; the management module stores the TS fragments obtained by splitting, deletes the TS fragments which are not within the preset storage days at regular time, and has the live broadcast M3U8, the M3U8 index file and the M3U8 management file; wherein the live broadcast M3U8 index file stores a plurality of latest TS fragment information matched with a preset live broadcast duration; wherein the playback M3U8 index file is internally provided with a plurality of local M3U8 index files which are matched with preset storage days and are used for recording TS fragmentation information obtained by cutting on different dates according to a time sequence; wherein the M3U8 management file records a plurality of pieces of local M3U8 index file information and the starting time and starting serial number information of TS fragments of the local M3U8 index file information, and the management module receives a playback request or live broadcast request information,generates corresponding index file addresses and sends the corresponding index file addresses to the user terminal.

Description

technical field [0001] The invention relates to the technical field of streaming media, in particular to a live broadcast time-shifting system and method based on HLS protocol multi-level management. Background technique [0002] The so-called time-shifting means that viewers can replay the live broadcast content in the past time arbitrarily. Time shifting is a new service formed by the combination of live broadcast and on-demand broadcast, and it is a supplement to the live broadcast service. Technically, when a pause request is made, the playback server records the program, and when the playback continues, the recorded program is replayed in unicast form. For live programs, the streaming media live broadcast system with time-shift function can watch the program at any time later, and it does not have to be synchronized, and can be paused and played at any time. That is, the time synchronization of the program is removed, and you can watch it whenever you want. [0003] ...

AI Technical Summary

Problems solved by technology

However, due to the small slice method of the HLS protocol will generate a large number of files, storing or processing these files will cause a lot of waste of resources

And if you want to achieve a time shift of several days, the amount of indexing will be a huge number, which will affect the request speed and thus affect the customer experience

Images