本文選題：數(shù)字音像內(nèi)容管理　切入點：跨平臺軟件開發(fā)　出處：《電子科技大學(xué)》2008年碩士論文　論文類型：學(xué)位論文

【摘要】： 近年來,以互聯(lián)網(wǎng)為傳播介質(zhì),以數(shù)字化多媒體內(nèi)容為主體的數(shù)字媒體產(chǎn)業(yè)在全球范圍內(nèi)快速崛起。它通過互聯(lián)網(wǎng)傳播數(shù)字音像內(nèi)容,擺脫了傳統(tǒng)音像產(chǎn)業(yè)對物理介質(zhì)的依賴。這種新的消費模式正在逐漸改變?nèi)藗儕蕵沸蓍e的方式。 數(shù)字音像內(nèi)容集成分發(fā)平臺是科技部“十一五”國家科技支撐計劃重大項目現(xiàn)代服務(wù)業(yè)共性技術(shù)支撐體系與應(yīng)用示范工程關(guān)鍵課題,旨在建立一個基于Internet網(wǎng)絡(luò)傳輸?shù)恼鏀?shù)字音像內(nèi)容管理發(fā)行平臺。作為其重要組成部分,智能終端系統(tǒng)直接面向最終用戶,管理和播放具有合法版權(quán)的數(shù)字音像內(nèi)容。本文工作圍繞智能終端系統(tǒng)的研究與設(shè)計,分為以下三個部分: 首先,分析了數(shù)字音像內(nèi)容組織管理的需求現(xiàn)狀,根據(jù)數(shù)字音像內(nèi)容集成分發(fā)平臺的要求,將數(shù)字音像內(nèi)容分成了需要數(shù)字版權(quán)管理的節(jié)目和不需要數(shù)字版權(quán)管理的廣告兩種資源形式,分別設(shè)計了節(jié)目和廣告的標(biāo)準(zhǔn)化組織形式,實現(xiàn)了對數(shù)字音像內(nèi)容的描述信息和資源實體相結(jié)合的全面管理。設(shè)計了一套完整的節(jié)目管理播放流程以及廣告與節(jié)目結(jié)合播放的管理調(diào)度方法。為了便于智能終端系統(tǒng)的運行維護,還構(gòu)建了一套用戶免操作的數(shù)字音像內(nèi)容遠程維護系統(tǒng)。 其次,研究了支持?jǐn)?shù)字版權(quán)保護的播放系統(tǒng),比較分析了三種不同的音視頻文件加解密方案,針對集成分發(fā)平臺的設(shè)計要求,制定了智能終端系統(tǒng)的加解密方案。通過對現(xiàn)有播放器的研究與分析,實現(xiàn)了基于MPlayer的加密音視頻文件播放器。該播放器可以同時支持加密和非加密音視頻文件。 最后,研究分析了跨平臺軟件開發(fā)面臨的兩個關(guān)鍵問題:程序設(shè)計方法和中文字符處理。以此為基礎(chǔ),設(shè)計實現(xiàn)了基于Qt程序庫的跨平臺的智能終端系統(tǒng)。在其中合理運用了多種設(shè)計模式來降低系統(tǒng)復(fù)雜度,進行了合理的模塊劃分,具有美觀的圖形用戶界面,可以完成智能終端系統(tǒng)要求的各項功能。
[Abstract]:In recent years, the digital media industry, which takes the Internet as the communication medium and the digital multimedia content as the main body, has risen rapidly in the global scope. This new consumption pattern is gradually changing the way people play and leisure. The digital audio and video content integration and distribution platform is the key subject of the "11th Five-Year Plan" of the Ministry of Science and Technology, which is a major project of the modern service industry common technology support system and application demonstration project. The purpose of this paper is to establish a real digital audio and video content management and distribution platform based on Internet network. As an important part of the platform, the intelligent terminal system is directly oriented to end users. Managing and playing digital audio and video content with legal copyright. This paper focuses on the research and design of intelligent terminal system, which is divided into the following three parts:. First of all, it analyzes the demand of digital audio and video content organization and management, according to the requirements of digital audio and video content integration and distribution platform. The contents of digital audio and video are divided into two kinds of resource forms: programs that need digital rights management and advertisements that do not need digital rights management. The standardized organization forms of programs and advertisements are designed respectively. This paper realizes the overall management of the description information and resource entity of digital audio and video content, and designs a complete program management and broadcast process and a management and scheduling method of combining advertisement and program. In order to facilitate the intelligence, the paper designs a set of management and scheduling methods for program management and broadcast. Terminal system operation and maintenance, A user-free digital audio and video content remote maintenance system is also constructed. Secondly, the playback system supporting digital copyright protection is studied, and three different schemes of audio and video file encryption and decryption are compared and analyzed, aiming at the design requirements of integrated distribution platform. The encryption and decryption scheme of intelligent terminal system is established. Through the research and analysis of the existing players, the encrypted audio and video file player based on MPlayer is realized, which can support both encrypted and unencrypted audio and video files. Finally, two key problems in cross-platform software development are studied and analyzed: programming method and Chinese character processing. The intelligent terminal system based on QT library is designed and implemented, in which a variety of design patterns are reasonably used to reduce the complexity of the system, and a reasonable module partition is carried out, which has a beautiful graphical user interface. Can complete the intelligent terminal system requirements of the various functions.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2008
【分類號】：TP311.52

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1 劉健;數(shù)字音像內(nèi)容智能終端系統(tǒng)研究與設(shè)計[D];電子科技大學(xué);2008年

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