Device and method for failure recovery

Abstract

The invention discloses a device and method for failure recovery; a media recovery controller is used for monitoring working state of a media processing unit through a media monitoring unit and recording the necessary media order and key media data from the main control unit in the media order queue and the media data queue; when a failure occurs in the media processing unit, the media recovery controller will reset the failure and send the necessary media order and key media data stored in the media order queue and the media data queue to the media processing unit and empty all orders and data stored in the media order queue and the media data queue after recovering failure by the media processing unit. By using the device and method in the invention, the media processing unit can be quickly reset to the state before the failure so as to shorten the failure recovery time of the media processing unit.

Description

technical field [0001] The invention relates to a fault recovery technology in the field of multimedia applications, in particular to a fault recovery device and method for a media processing unit. Background technique [0002] Multimedia technology is a technology that combines text, images, and sounds, and is widely used in education and training, consulting and presentations, entertainment and games, and video conference systems. [0003] In the prior art, a multimedia system mainly includes: a main control unit and a media processing unit; the main control unit is used to send media commands and media data to the media processing unit; the media processing unit is a media processing device, usually using a digital signal processor ( DSP, Digital Signal Processor), used to execute media commands and process media data to display image content. [0004] In practical applications, the media processing unit may fail to respond to media commands or crash due to failure. The...

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Problems solved by technology

[0004] In practical applications, the media processing unit may fail to respond to media commands or crash due to failure.

The usual solution is to restart the media processing unit through the main control unit to restore the media processing unit to its initial state, but this will cause the media processing unit to lose the media commands and media data currently being processed, and the state of the media processing unit will Inconsistent with the state of the main control unit, the media processing unit cannot respond correctly to the media commands and media data sent by the main control unit

In general, in order to make the state of the main control unit consistent with that of the media processing unit, it is necessary to restore the main control unit to the initial state corresponding to the media processing unit. Due to the complexity of the state of the main control unit, it is necessary to manually participate in the business model Restoring settings, resulting in excessively long failure recovery times for media processing units

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