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H.264串流傳輸之資料封裝策略與設計

Packetization Strategy and Design on H.264 Streaming Data Transmission

摘要


H.264已是現今廣泛被使用在串流傳輸的壓縮標準。本文從header overhead的角度討論在H.264在進行壓縮與傳輸時,以編碼器內實作或透過特別封裝用封包等不同的作法進行資料分割與封裝的設計方式與問題。在文章後段會再提出討論調整Maximum Transmission Unit與header compression的方式來進一步提昇傳輸效率可能的方式以及其利與弊,希望能提供設計H.264串流傳輸系統時關於資料封裝效率上設計策略的參考。

並列摘要


H.264 is a video encoding standard which has already been widely used in streaming transmission systems nowadays. In this article, we try to discuss the transmission header overhead issues of encoding and transmission the H.264 streams in different strategies , either designed inside the H.264 encoder or using fragmentation packets, to achieve streaming data fragmenting and packetizing. In the later part of this article, we will also discuss possible solutions of increasing the data transmission efficiency and their tradeoffs by increasing the Maximum Transmission Unit size and using header compression techniques. We hope this article can give some references for the design strategy about designing a H.264 streaming transmission systems.

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