The Scalable Video Coding(SVC) draft specification version 8 was released by Joint Video Team(JVT) on Oct,2006. JVT is formed by ISO/IEC MPEG & ITU-T VCEG.
標(biāo)簽: Video specification Scalable released
上傳時(shí)間: 2015-10-11
上傳用戶:924484786
P2P 之 UDP穿透NAT的原理與實(shí)現(xiàn)(附源代碼) 原創(chuàng):shootingstars 參考:http://midcom-p2p.sourceforge.net/draft-ford-midcom-p2p-01.txt baidu 論壇上經(jīng)常有對(duì)P2P原理的討論,但是討論歸討論,很少有實(shí)質(zhì)的東西產(chǎn)生(源代碼)。呵呵,在這里我就用自己實(shí)現(xiàn)的一個(gè)源代碼來(lái)說(shuō)明UDP穿越NAT的原理。 首先先介紹一些基本概念: NAT(Network Address Translators),網(wǎng)絡(luò)地址轉(zhuǎn)換:網(wǎng)絡(luò)地址轉(zhuǎn)換是在IP地址日益缺乏的情況下產(chǎn)生的,它的主要目的就是為了能夠地址重用。NAT分為兩大類,基本的NAT和NAPT(Network Address/Port Translator)。 最開始NAT是運(yùn)行在路由器上的一個(gè)功能模塊。 最先提出的是基本的NAT,它的產(chǎn)生基于如下事實(shí):一個(gè)私有網(wǎng)絡(luò)(域)中的節(jié)點(diǎn)中只有很少的節(jié)點(diǎn)需要與外網(wǎng)連接(呵呵,這是在上世紀(jì)90年代中期提出的)。那么這個(gè)子網(wǎng)中其實(shí)只有少數(shù)的節(jié)點(diǎn)需要全球唯一的IP地址,其他的節(jié)點(diǎn)的IP地址應(yīng)該是可以重用的。 因此,基本的NAT實(shí)現(xiàn)的功能很簡(jiǎn)單,在子網(wǎng)內(nèi)使用一個(gè)保留的IP子網(wǎng)段,這些IP對(duì)外是不可見的。子網(wǎng)內(nèi)只有少數(shù)一些IP地址可以對(duì)應(yīng)到真正全球唯一的IP地址。如果這些節(jié)點(diǎn)需要訪問(wèn)外部網(wǎng)絡(luò),那么基本NAT就負(fù)責(zé)將這個(gè)節(jié)點(diǎn)的子網(wǎng)內(nèi)IP轉(zhuǎn)化為
標(biāo)簽: draft-ford-midcom shootingstars sourceforge midcom-p
上傳時(shí)間: 2015-12-08
上傳用戶:kernaling
JPEG 2000 FINAL COMMITTEE draft VERSION 1.0, 16 MARCH 2000
標(biāo)簽: 2000 COMMITTEE VERSION FINAL
上傳時(shí)間: 2014-01-11
上傳用戶:啊颯颯大師的
Joint draft ITU-T Rec. H.264 | ISO/IEC 14496-10 / Amd.3 Scalable video coding JVT制定的H.264SVC擴(kuò)展的建議標(biāo)準(zhǔn)
標(biāo)簽: 264 Scalable coding Joint
上傳時(shí)間: 2013-12-06
上傳用戶:電子世界
This version of the book is a draft! The chapters are mostly complete, but not carefully edited. Some of the debugging sections are not done, and not all chapters have exercises. If you have high-level comments about the organization of the book or the topics covered, please send me email at feedback{at}thinkpython{dot}com. It is probably too early for detailed comments like spelling errors.
標(biāo)簽: carefully chapters complete version
上傳時(shí)間: 2014-08-29
上傳用戶:ayfeixiao
draft ITU-T Recommendation and Final draft International Standard of Joint Video Specification (ITU-T Rec. H.264 | ISO/IEC 14496-10 AVC)
標(biāo)簽: draft Recommendation International Specification
上傳時(shí)間: 2017-02-16
上傳用戶:gaome
Final draft of the ISO 14443 norm
標(biāo)簽: Final 14443 draft norm
上傳時(shí)間: 2013-12-18
上傳用戶:ynsnjs
Algorithms for programmers This draft is intended to turn into a book about selected algorithms. The audience in mind are programmers who are interested in the treated algorithms and actually want to have/create working and reasonably optimized code.
標(biāo)簽: programmers Algorithms algorithms intended
上傳時(shí)間: 2014-01-22
上傳用戶:jqy_china
JPEG 2000 IMAGE CODING SYSTEM JPEG 2000 FINAL COMMITTEE draft VERSION 1.0, 16 MARCH 2000
標(biāo)簽: 2000 JPEG COMMITTEE VERSION
上傳時(shí)間: 2014-01-25
上傳用戶:mikesering
JPEG 2000 Part II Final Committee draft
標(biāo)簽: Committee Final draft JPEG
上傳時(shí)間: 2017-08-22
上傳用戶:qw12
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