【摘要】：HEVCξHigh Efficiency Video Codingˇ是目前最新一代的視頻壓縮標(biāo)準(zhǔn)針對(duì)其發(fā)布之初缺乏相應(yīng)的編碼器的問(wèn)題本文在HM軟件以及編碼器x264的基礎(chǔ)上以結(jié)構(gòu)化的方法重新對(duì)HEVC編碼流程進(jìn)行了設(shè)計(jì)并實(shí)現(xiàn)了一個(gè)基于C語(yǔ)言實(shí)現(xiàn)的HEVC標(biāo)準(zhǔn)編碼器該編碼器將輸入的YUV視頻圖像序列編碼為符合HEVC標(biāo)準(zhǔn)的碼流 本文的主要工作和貢獻(xiàn)主要有四點(diǎn)一是以結(jié)構(gòu)化的方法重新對(duì)HEVC編碼流程進(jìn)行了分析和設(shè)計(jì)包括對(duì)編碼的DPCM/DCT框架以及相應(yīng)的預(yù)測(cè)空間域以及熵編碼三個(gè)模塊的設(shè)計(jì)與實(shí)現(xiàn)二是對(duì)設(shè)計(jì)中的HEVC編碼流程進(jìn)行了評(píng)估并使用第三方匯編模塊對(duì)其中計(jì)算密集的模塊進(jìn)行了加速提升了編碼效率三是使用C語(yǔ)言開(kāi)發(fā)能夠適應(yīng)眾多編碼技術(shù)平臺(tái)在移植上更有優(yōu)勢(shì)從而為進(jìn)一步的特定應(yīng)用場(chǎng)景下的開(kāi)發(fā)提供了更有效的解決方案解決了HM軟件不能很好地適應(yīng)當(dāng)前市場(chǎng)上主流的編碼平臺(tái)的技術(shù)需求的問(wèn)題四是項(xiàng)目支持通過(guò)配置選擇只使用C語(yǔ)言的編碼器實(shí)現(xiàn)或者使用與匯編模塊混合實(shí)現(xiàn)的編碼方式開(kāi)發(fā)者可以基于此功能為項(xiàng)目添加不同平臺(tái)的加速模塊或進(jìn)一步開(kāi)發(fā)更多匯編模塊的支持為進(jìn)一步的編碼器開(kāi)發(fā)提供了高適應(yīng)性的平臺(tái) 本論文根據(jù)軟件工程中結(jié)構(gòu)化的開(kāi)發(fā)流程對(duì)系統(tǒng)進(jìn)行了詳細(xì)的分析設(shè)計(jì)以及實(shí)現(xiàn)目前編碼器已經(jīng)開(kāi)發(fā)完成并可用共約有八萬(wàn)七千行代碼支持通過(guò)配置選擇使用第三方的匯編SIMD硬件加速模塊使用加速后能達(dá)到HM軟件編碼的接近兩倍速度并適合為主流編碼平臺(tái)作進(jìn)一步開(kāi)發(fā)
[Abstract]:HEVC 尉 High Efficiency Video Coding is the latest generation of video compression standard. In view of the lack of corresponding encoder at the beginning of its publication, this paper reconstructs the HEVC coding flow based on the HM software and the encoder x264. This paper designs and implements a HEVC standard encoder based on C language. The encoder encodes the input YUV video image sequence into a code stream that conforms to the HEVC standard. The main work and contribution of this paper is 4.1. This paper analyzes and designs the HEVC coding flow again, including the design and implementation of the coding DPCM/DCT framework, the corresponding prediction space domain and the entropy coding module. The second is the design and implementation of the HEVC coding flow in the design. It evaluates and uses third-party assembly modules to accelerate the coding efficiency of the computationally intensive modules. Third, it can be developed using C language to adapt to many coding technology platforms. Development in a specific application scenario provides a more effective solution to the problem that HM software is not well adapted to the technical requirements of the mainstream coding platforms in the current market. Encoders implemented in C language or implemented in combination with assembly modules allow developers to add acceleration modules of different platforms for projects based on this feature or to further develop support for more assembly modules. This paper analyzes and designs the system in detail according to the structured development flow in software engineering, and realizes that the encoder has been developed and can be used at present. Some 87000 lines of code support the option of using third-party assembly SIMD hardware acceleration modules to achieve nearly double the speed of HM software encoding and are suitable for further development on mainstream coding platforms
【學(xué)位授予單位】：中山大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類(lèi)號(hào)】：TN762;TN919.81

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