Audio playing apparatus and method, and digital television chip

A technology for audio playback and audio data, which is applied to TVs, color TVs, and components of color TVs. , The effect of reducing audio switching time and occupying less resources
CN101404741AInactive Publication Date: 2009-04-08INNOFIDEI TECHNOLOGIES INC
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
INNOFIDEI TECHNOLOGIES INC
Publication Date
2009-04-08
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides an audio playing method for a mobile multimedia broadcasting system. The audio playing method comprises the following steps: decoded audio data is obtained; an audio data address pointer is pointed to a current cache address of the decoded audio data; the audio data address pointer is compared with a playing pointer in the audio playing process, and the audio data is played or stopped playing according to the comparison result. The method aims at the disadvantages of weaker function and limited resources of an operating system on a mobile multimedia broadcasting terminal chip to control the playing of the audio data by comparing the audio data address pointer with the playing pointer; therefore, the invention has simple realization method, short realization code, no addition of hardware and software equipment and drive support and less occupied resources, and the audio data can be conveniently integrated into the mobile terminal chip. The method further realizes quick audio switching by resetting the state and directions of the playing pointer when a channel switching is carried out on the mobile terminal.
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Description

technical field

[0001] The invention relates to the technical field of mobile multimedia broadcasting, in particular to an audio playing device and method for a mobile multimedia broadcasting system, and a digital TV chip for receiving mobile multimedia broadcasting. Background technique

[0002] Mobile multimedia broadcasting is an emerging multimedia playback technology. In recent years, this technology and standards have developed rapidly, such as digital video broadcast handheld reception (DVB-H, Digital Video Broadcast Handheld) in Europe, and media single forward link in the United States. (MediaFLO, Media ForwardLink Only) and China's mobile multimedia broadcasting system (CMMB, China Mobile MultimediaBroadcast), etc., provide its end users with many service contents, such as advertisements, weather forecasts, news, sports programs, variety shows, multimedia radio dramas, movies, etc. Programs, users can choose different services according to their hobbies.

[0003] ...

Claims

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