Embedded multimedia playing system and method

Abstract

The embodiment of the invention discloses an embedded multimedia playing system. The embedded multimedia playing system comprises a foreground interface, a middleware and a background control module, wherein the foreground interface is a graphical user interface based on hypertext markup language (HTML), cascading style sheet (CSS) and JavaScript language; the middleware is based on Qt / Embedded, is used for providing an interface and supporting display output, and is connected with the background control module; the background control module adopts standard C language; and a user inputs information from the graphical user interface, the middleware receives the information input by the user through the interface, and the background control module processes the input information, does corresponding operation and invokes a drive to perform decoding play. The Qt / Embedded serves as the middleware, the graphical user interface and the background control module are separated from the Qt / Embedded frame, the interface for accessing mutually is provided, and background control is realized by using the C language, so the coupling degree of the foreground module and the background module is reduced, the fault tolerance and the stability of the system are improved, and the using efficiency of resources is improved. The invention also discloses an embedded multimedia playing method with high fault tolerance and stability.

Description

technical field [0001] The invention relates to the technical field of multimedia playing, in particular to an embedded multimedia playing system and method. Background technique [0002] With the popularity of high-definition televisions, embedded devices for processing high-definition video have developed rapidly. At present, the framework of the mainstream embedded multimedia player system mainly includes frameworks based on Qt / Embedded, MiniGUI (Graphical User Interface, Graphical User Interface), Microwindow, etc. "Smallness" is a typical advantage of MiniGUI, but its controls are rough and suitable for embedded systems with limited hardware resources. As the computing power of embedded processors continues to increase and costs continue to decrease, the advantages of MiniGUI are getting smaller and smaller. There are many problems in its graphics engine of Microwindow, such as no hardware acceleration capability, many inefficient algorithms, etc. Qt / Embedded is a ver...

AI Technical Summary

Problems solved by technology

But the disadvantages are also obvious

Because the traditional multimedia system architecture design method uses pure C++ language design, the foreground interface and background control directly communicate data, and the coupling between modules is high, so any error in the foreground or background will lead to the paralysis of the entire system

The fault tolerance of the system is reduced, and the stability is not high, which brings a series of inconvenience to the actual use of users

For example, when the user is watching a movie, the background control part is paralyzed due to misoperation, and the entire system crashes, and the user can only continue to use it by restarting the system

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