Media module of mobile video monitoring system

A monitoring system and mobile video technology, applied in the direction of closed-circuit television systems, televisions, electrical components, etc., can solve the problems of poor scalability, low system development efficiency, and long development cycle, so as to achieve good scalability, shorten the software development cycle, The effect of improving development efficiency

Inactive Publication Date: 2012-03-14
ZHEJIANG UNIV OF TECH +1
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AI Technical Summary

Problems solved by technology

[0003] In order to overcome the shortcomings of relatively poor expansion performance, long development cycle, and low system development efficiency of the existing mobile video monitoring system media modules, the present invention provides a system with better expansion performance, shortened development cycle, and improved system development efficiency. The media module of the mobile video surveillance system

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  • Media module of mobile video monitoring system
  • Media module of mobile video monitoring system
  • Media module of mobile video monitoring system

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] refer to Figure 1 to Figure 11 , a kind of media module of mobile video monitoring system, described media module adopts DirectShow framework as the framework of multimedia software development, adopts " push " mode as the pattern of data transmission, adopts ffmpeg decoder as H.264 video decoder;

[0026] The source filter (Source Filter) in the DirectShow frame is responsible for the collection of video, and in this invention video data originates from Internet; Transform filter (Transform Filter) is responsible for the processing of video, is to H.264 encoding data in this invention Decode, and then submit to the next level of filter; Rendering Filter (Rendering Filter): mainly responsible for video rendering and playback on the panel and audio playback, it submits the decoded audio and video information to the graphics card or sound card for processing; Fi...

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Abstract

The invention provides a media module of a mobile video monitoring system. The media module is characterized in that: a DirectShow framework is employed as a framework of multimedia software development, a 'push' mode is employed as a data transmission mode, and an ffmpeg decoder is employed as an H.264 video decoder; and the DirectShow framework comprises the following parts: a source filter; a transform filter which is responsible for processing a video, decoding H.264 video data, and submitting the data to a filter of a next level; a rendering filter which is responsible for rendering play and audio play of the video on a panel, and submitting audio and video information after decoding to a video card or a sound card for processing; a filter graph manager which is responsible for managing the filters, providing a Filter management interface to an application program, and providing a reference clock; a Graph event providing module used for ensuring the media module to notify an event to the application program in a message form. The media module has good expansion performance, a development period is shortened, and development efficiency of the system is raised.

Description

technical field [0001] The invention belongs to the monitoring software field of a monitoring system, in particular to a media module of a mobile video monitoring system. Background technique [0002] Due to the large amount of multimedia data, the encoding algorithm of audio and video is complex, especially in the transmission of real-time streaming media, customers have higher requirements for decoding speed of multimedia, and at the same time, the synchronization problem of audio and video and the scalability caused by many multimedia compression codec standards The problem makes multimedia development technology face great challenges. At present, many companies have encountered a big bottleneck in the modular development model based on the program development interface. Secondary developers need to spend more time learning the program development interface of each module. At the same time, the scalability of the software is relatively poor. , There are big problems in t...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/18H04N7/26
Inventor 孟利民陶水娟王学智
Owner ZHEJIANG UNIV OF TECH
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