Hard disk video recorder and system and method for converting multimedia formats

Abstract

The invention provides a hard disk video recorder, which comprises head-end equipment and real-time format conversion equipment connected with the head-end equipment, wherein the real-time format conversion equipment acquires multimedia real-time stream data from the head-end equipment, decodes and separates the multimedia real-time steam data, acquires decoded audio data and video data, encodes the decoded audio data and video data according to a set encoding mode and set encoding parameters respectively, acquires the multimedia real-time stream data after format conversion according to the encoded audio data and the encoded video data, and outputs the multimedia real-time stream data. The invention also provides a system and a method for converting multimedia formats. By adopting the hard disk recorder and the system and the method for converting the multimedia formats, the using real-time and convenience can be improved.

Description

technical field [0001] The invention relates to encoding and decoding technology, in particular to a hard disk video recorder and a system and method for converting multimedia formats. Background technique [0002] In the field of monitoring, with the development of embedded technology and the continuous improvement of monitoring equipment, the speed of product replacement is getting faster and faster. Digital Video Recorder (DVR) has gradually become the main product of the monitoring industry, and its functions are gradually becoming be perfected. The so-called hard disk video recorder is a set of computer systems for image storage and processing; compared with the traditional tape recorder, the hard disk video recorder has the functions of long-term video recording, recording, remote monitoring and control of image / voice. [0003] figure 1 It is a structural diagram of an existing hard disk video recorder connected to a local computer. Such as figure 1 As shown, the h...

AI Technical Summary

Problems solved by technology

[0004] To sum up, the existing hard disk video recorder can only temporarily store the multimedia data captured in real time, and the local computer converts and plays the format of the multimedia data temporarily stored in the hard disk video recorder according to the parameters set by the user. The existing hard disk video recorder The format conversion and real-time playback of the multimedia data captured in real time cannot be performed according to the parameters set by the user, which reduces the real-time and convenience of the user's use

Since the file formats stored in DVRs produced by different manufacturers may not be uniform, users need to set different format conversion parameters for different file formats, which further reduces the convenience of users.

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