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{{NoteTA
|G1=IT
|1 = zh-hant:實作; zh-hans:实现;
}}
{{Infobox file format
| logo = [[File:Vp8-logo-for-mediawiki.svg|200px|VP8 logo]]
| owner = [[On2 Technologies]], [[Google]]
| released = 2008年9月13日
| type = 影像壓縮格式
| contained by = [[WebM]]、[[Matroska]]
| extended from = [[VP7]]
| extended to = [[VP9]]
| standard = {{IETF RFC|6386}}
| open = 是（[[知识共享许可协议|CC-by]]）<ref name="specLicense"/>
| free = 參考{{section link||發展歷史}}
}}
{{Infobox software
| name = libvpx（VP8編碼函式庫）<ref name="webm-build">{{cite web | url = http://www.webmproject.org/code/build-prerequisites/ | title = WebM Code - Build Prerequisites | accessdate = 2010-06-02 | archive-date = 2012-06-18 | archive-url = https://www.webcitation.org/68VgQhkkK?url=http://www.webmproject.org/code/build-prerequisites/ | dead-url = no }}</ref><ref name="libvpx">{{cite web | url = http://code.google.com/p/webm/downloads/list | title = WebM Downloads | accessdate = 2010-11-01 | deadurl = yes | archiveurl = https://www.webcitation.org/68VgR77Pd?url=http://code.google.com/p/webm/downloads/list | archivedate = 2012-06-18 }}</ref><ref name="repository-layout">{{cite web | url = http://www.webmproject.org/code/repository-layout/ | title = WebM Code > Repository Layout | accessdate = 2010-06-02 | archive-date = 2012-06-18 | archive-url = https://www.webcitation.org/68VgRfi3E?url=http://www.webmproject.org/code/repository-layout/ | dead-url = no }}</ref>
| developer = Google
| released = 2010年5月18日
| latest_release_version = 1.4.0
| latest_release_date = {{Release date and age|2015|04|03}}
| programming language = [[C语言|C]]
| operating_system = [[Unix-like]]（包含[[GNU/Linux]]、[[Mac OS X]]）、[[Microsoft Windows|Windows]]
| status =
| genre = [[視訊編解碼器]]
| license = [[BSD授權條款]]<ref name="libvpx-license">{{cite web|url=http://www.webmproject.org/license/software/|title=Software License|accessdate=2010-06-04|archive-date=2012-06-18|archive-url=https://www.webcitation.org/68VgS6A3M?url=http://www.webmproject.org/license/software/|dead-url=no}}</ref>，附加專利使用權<ref name="libvpx-patent-license">{{cite web|url=http://www.webmproject.org/license/additional/|title=Additional IP Rights Grant (Patents)|accessdate=2010-06-04|archive-date=2022-05-11|archive-url=https://web.archive.org/web/20220511001423/https://www.webmproject.org/license/additional/}}</ref>
| website = [http://www.webmproject.org/ webmproject.org]
}}

'''VP8'''是一個開放的[[影像壓縮]]格式，最早由[[On2 Technologies]]開發，隨後由[[Google]]釋出。同時Google也釋出了VP8編碼的實作函式庫：'''libvpx'''，以[[BSD授權條款]]的方式發行，隨後也附加了專利使用權<ref name="libvpx-license"/><ref name="libvpx-patent-license"/><ref name="changes-to-webm-open-source-license">{{cite web|url=http://webmproject.blogspot.com/2010/06/changes-to-webm-open-source-license.html|title=Changes to the WebM Open Source License|accessdate=2010-06-04|archive-date=2013-08-27|archive-url=https://www.webcitation.org/6JC4ZHlR1?url=http://webmproject.blogspot.com/2010/06/changes-to-webm-open-source-license.html|dead-url=yes}}</ref>。而在經過一些爭論之後，最終VP8的授權確認為一個開放原始碼授權<ref>{{citation |url=http://blog.internetnews.com/skerner/2010/05/is-vp8-open-source.html |title=Is VP8 open source? |date=2010-05-25 |publisher=InternetNews |first=Sean Michael |last=Kerner |accessdate=2011-10-31 |archive-date=2010-05-28 |archive-url=https://web.archive.org/web/20100528171252/http://blog.internetnews.com/skerner/2010/05/is-vp8-open-source.html |dead-url=no }}</ref><ref>{{citation |url=http://www.theregister.co.uk/2010/05/24/osi_board_member_on_google_webm/ |title=Google open codec 'not open,' says OSI man |date=2010-05-24 |publisher=The Register |first=Cade |last=Metz |accessdate=2011-10-31 |archive-date=2019-04-13 |archive-url=https://web.archive.org/web/20190413074811/https://www.theregister.co.uk/2010/05/24/osi_board_member_on_google_webm/ }}</ref><ref>{{citation |url=http://www.theregister.co.uk/2010/05/28/mozilla_and_opera_want_vp8_in_html5/ |title=Mozilla and Opera call for Google open codec in HTML5 spec |date=2010-05-28 |publisher=The Register |first=Cade |last=Metz |accessdate=2011-10-31 |archive-date=2019-09-23 |archive-url=https://web.archive.org/web/20190923225614/https://www.theregister.co.uk/2010/05/28/mozilla_and_opera_want_vp8_in_html5/ }}</ref><ref>{{citation |url=http://www.computerworlduk.com/community/blogs/index.cfm?entryid=2973 |title=WebM: Missing The Assurances Open Source Needs? |date=2010-05-24 |publisher=ComputerworldUK |first=Simon |last=Phipps }}{{dead link|date=2017年11月 |bot=InternetArchiveBot |fix-attempted=yes }}</ref>。

目前支援VP8的[[網頁瀏覽器]]有[[Opera電腦瀏覽器|Opera]]、[[Firefox]]和[[Google Chrome|Chrome]]<ref>{{Cite web |url=http://www.h-online.com/open/news/item/Nokia-lines-up-patents-against-VP8-video-codec-1829299.html |title=存档副本 |access-date=2013-07-21 |archive-date=2022-04-03 |archive-url=https://web.archive.org/web/20220403235910/http://www.h-online.com/open/news/item/Nokia-lines-up-patents-against-VP8-video-codec-1829299.html }}</ref>。

== 發展歷史 ==
VP8編碼的開發從2008年9月13日開始，目的是要取代舊有的VP7編碼格式<ref name="broadcastingcable">{{cite web |url=http://www.broadcastingcable.com/article/115438-IBC2008_On2_Touts_New_Codec_for_Web_Video.php |title=IBC2008: On2 Touts New Codec for Web Video |author=Glen Dickson |publisher=Broadcasting & Cable |date=2008-09-16 |accessdate=2009-09-11 |archive-date=2012-04-26 |archive-url=https://www.webcitation.org/67Cpgp9po?url=http://www.broadcastingcable.com/article/115438-IBC2008_On2_Touts_New_Codec_for_Web_Video.php |dead-url=no }}</ref><ref name="on2">{{cite web |url=http://www.on2.com/index.php?id=439&news_id=641 |title=On2 Technologies Unveils New Advanced Video Compression Format |author=On2 Technologies |publisher=On2 Technologies |date=2008-09-13 |accessdate=2009-09-11 |deadurl=yes |archiveurl=https://web.archive.org/web/20080922145207/http://www.on2.com/index.php?id=439&news_id=641 |archivedate=2008-09-22 }}</ref>。[[Google]]在2010年收購了On2之後<ref>{{Cite web |url=http://investor.google.com/releases/20100219.html |title=存档副本 |access-date=2011-11-01 |archive-date=2015-11-01 |archive-url=https://web.archive.org/web/20151101153239/http://investor.google.com/releases/20100219.html }}</ref>，各界便呼籲Google釋出VP8的原始碼，在2010年3月12日，[[自由軟體基金會]]發表了一個公開信，希望Google能夠逐漸的以[[HTML5]]和開放的VP8，取代[[YouTube]]目前使用的[[Adobe Flash Player]]和[[H.264/MPEG-4 AVC|H.264]]<ref>{{citation |url=http://www.fsf.org/blogs/community/google-free-on2-vp8-for-youtube |title=Open letter to Google: free VP8, and use it on YouTube |first=Holmes |last=Wilson |publisher=Free Software Foundation |date=2010-03-12 |accessdate=2010-05-20 |archive-date=2022-01-21 |archive-url=https://web.archive.org/web/20220121094658/https://www.fsf.org/blogs/community/google-free-on2-vp8-for-youtube }}</ref>。

2010年5月19日，Google在[[Google I/O|Google I/O年會]]上<ref>{{citation |url=http://mashable.com/2010/05/19/live-google-makes-major-announcements-at-google-io/ |title=Google Makes Major Announcements at Google I/O |first=Ben |last=Parr |publisher=mashable.com |date=2010-05-19 |accessdate=2010-05-20 |archive-date=2021-04-17 |archive-url=https://web.archive.org/web/20210417003745/https://mashable.com/2010/05/19/live-google-makes-major-announcements-at-google-io/ }}</ref>，以[[BSD授權條款]]的釋出了VP8編碼軟體，VP8的位元流格式則是以不可撤回的免費專利使用權釋出<ref>{{Cite web |url=http://www.webmproject.org/license/ |title=存档副本 |accessdate=2011-10-31 |archive-date=2011-02-13 |archive-url=https://web.archive.org/web/20110213202948/http://www.webmproject.org/license/ |dead-url=yes }}</ref>。VP8也成為第二個On2 Technologies以開放原始碼方式釋出的編碼產品，前一個是捐贈給[[Xiph.Org基金會]]的[[VP3]]<ref>The Free Library (2002-08-01) [http://www.thefreelibrary.com/ON2+SIGNS+PACT+WITH+XIPH.ORG+TO+DEVELOP%2FSUPPORT+VP3-a089067501 On2 Signs Pact With Xiph.org to Develop/Support VP3] {{Wayback|url=http://www.thefreelibrary.com/ON2+SIGNS+PACT+WITH+XIPH.ORG+TO+DEVELOP%2FSUPPORT+VP3-a089067501 |date=20210628055312 }}, Retrieved on 2009-08-16</ref>，隨後成為了影像編碼格式[[Theora]]。

2013年3月，Google與[[MPEG LA]]達成協議：Google取得VP8可能受影響的專利授權，同時Google也可以再次授權給VP8的使用者。<ref>{{cite web|title=Google and MPEG LA make a deal over VP8 codec - Update|url=http://www.h-online.com/open/news/item/Google-and-MPEG-LA-make-a-deal-over-VP8-codec-Update-1818785.html|archiveurl=https://web.archive.org/web/20131208040459/http://www.h-online.com/open/news/item/Google-and-MPEG-LA-make-a-deal-over-VP8-codec-Update-1818785.html|archivedate=2013-12-08|publisher=The H|accessdate=10 March 2013|dead-url=no}}</ref><ref name="#1">{{Cite web
|url=http://www.businesswire.com/news/home/20130307006192/en/Google-MPEG-LA-Announce-Agreement-Covering-VP8
|title=Google and MPEG LA Announce Agreement Covering VP8 Video Format
|date=March 7, 2013
|accessdate=March 8, 2013
|archive-date=2022-01-24
|archive-url=https://web.archive.org/web/20220124021931/https://www.businesswire.com/news/home/20130307006192/en/Google-MPEG-LA-Announce-Agreement-Covering-VP8
}}</ref>

==實作==
===編碼===
目前VP8-{只}-能透過libvpx來進行編碼<ref>{{citation |url=http://www.webmproject.org/tools/vp8-sdk/group__vp8__encoder.html |title=VP8 SDK - WebM VP8 Encoder |publisher=WebM Project |deadurl=yes |archiveurl=https://web.archive.org/web/20111103084035/http://www.webmproject.org/tools/vp8-sdk/group__vp8__encoder.html |archivedate=2011-11-03 |accessdate=2011-11-02 }}</ref>，而Google聘用了[[FFmpeg]]的開發者Ronald Bultje來開發基於[[x264]]架構的VP8編碼器，稱為xvp8，將來釋出後會整合在x264中<ref>{{citation |url=http://news.ycombinator.com/item?id=2095083 |title=Hacker News: In #ffmpeg on freenode |accessdate=2011-11-02 |archive-date=2016-04-06 |archive-url=https://web.archive.org/web/20160406180228/https://news.ycombinator.com/item?id=2095083 }}</ref>。而芬蘭的WebM硬體開發團隊則是釋出了暫存器轉換階層（Register transfer level）的VP8硬體編碼器，提供給半導體製造商免費使用。<ref>{{citation |url=http://blog.webmproject.org/2011/03/introducing-anthill-first-vp8-hardware.html |title=Introducing "Anthill," the First VP8 Hardware Encoder IP Release |publisher=WebM Project |accessdate=2011-11-02 |archive-date=2011-03-17 |archive-url=https://web.archive.org/web/20110317105114/http://blog.webmproject.org/2011/03/introducing-anthill-first-vp8-hardware.html |dead-url=no }}</ref><ref>{{citation |url=http://www.webmproject.org/hardware/#webm_video_encoder_hardware_ip |title=WebM Video Hardware RTLs - WebM Video Encoder Hardware IP |publisher=WebM Project |accessdate=2011-11-02 |archive-date=2011-03-16 |archive-url=https://web.archive.org/web/20110316122610/http://www.webmproject.org/hardware/#webm_video_encoder_hardware_ip }}</ref>

===解碼===
libvpx可以解碼VP8的影像<ref>{{citation |url=http://www.webmproject.org/tools/vp8-sdk/group__vp8__decoder.html |title=VP8 SDK - WebM VP8 Decoder |publisher=WebM Project |deadurl=yes |archiveurl=https://web.archive.org/web/20111103074817/http://www.webmproject.org/tools/vp8-sdk/group__vp8__decoder.html |archivedate=2011-11-03 |accessdate=2011-11-02 }}</ref>，在2010年7月23日，[[FFmpeg]]的開發者Jason Garrett-Glaser、Ronald Bultje和David Conrad發佈了名為ffvp8的VP8解碼器，測試結果顯示ffvp8比Google自己的libvpx解碼器效能更佳<ref>{{citation |url=http://x264dev.multimedia.cx/?p=499 |title=Diary Of An x264 Developer: Announcing the world's fastest VP8 decoder |first=Jason |last=Garrett-Glaser |date=2010-07-23 |deadurl=yes |archiveurl=https://web.archive.org/web/20100930181634/http://x264dev.multimedia.cx/?p=499 |archivedate=2010-09-30 |accessdate=2011-11-02 }}</ref>。另外WebM專案的硬體團隊也有釋出暫存器轉換階層（Register transfer level）的硬體解碼器，同樣是免費使用<ref>{{citation |url=http://blog.webmproject.org/2011/01/availability-of-webm-vp8-video-hardware.html |title=Availability of WebM (VP8) Video Hardware IP Designs |publisher=WebM Project |accessdate=2011-11-02 |archive-date=2011-01-13 |archive-url=https://web.archive.org/web/20110113224753/http://blog.webmproject.org/2011/01/availability-of-webm-vp8-video-hardware.html |dead-url=no }}</ref><ref>{{citation |url=http://www.webmproject.org/hardware/#webm_video_decoder_hardware_ip |title=WebM Video Hardware RTLs - WebM Video Decoder Hardware IP |publisher=WebM Project |accessdate=2011-11-02 |archive-date=2011-03-16 |archive-url=https://web.archive.org/web/20110316122610/http://www.webmproject.org/hardware/#webm_video_decoder_hardware_ip }}</ref>。

==相關格式==
===WebM===
{{main|WebM}}
[[WebM|WebM專案]]和VP8同時在2010年5月19日發表，Mozilla<ref>{{citation |url=http://hacks.mozilla.org/2010/05/firefox-youtube-and-webm/ |title=Firefox, YouTube and WebM |first=Christopher |last=Blizzard |date=2010-05-19 |publisher=Mozilla |accessdate=2010-05-20 |archive-date=2011-01-31 |archive-url=https://web.archive.org/web/20110131181002/http://hacks.mozilla.org/2010/05/firefox-youtube-and-webm/ |dead-url=yes }}</ref>、Opera<ref>{{citation |url=http://labs.opera.com/news/2010/05/19/ |title=Welcome, WebM <video>! |first=Håkon Wium |last=Lie |date=2010-05-19 |publisher=Opera |deadurl=yes |archiveurl=https://web.archive.org/web/20110321150357/http://labs.opera.com/news/2010/05/19/ |archivedate=2011-03-21 |accessdate=2010-05-20 }}</ref><ref>{{citation |url=http://dev.opera.com/articles/view/opera-supports-webm-video/ |title=Opera supports the WebM video format |date=2010-05-19 |first=Chris |last=Mills |publisher=Opera |accessdate=2010-05-20 |archive-date=2011-04-05 |archive-url=https://web.archive.org/web/20110405132752/http://dev.opera.com/articles/view/opera-supports-webm-video/ |dead-url=yes }}</ref>、Google<ref>{{citation |url=http://blog.chromium.org/2010/05/webm-and-vp8-land-in-chromium.html |title=WebM and VP8 land in Chromium |date=2010-05-19 |first=Jim |last=Bankoski |publisher=Google |accessdate=2010-05-20 |archive-date=2010-05-21 |archive-url=https://web.archive.org/web/20100521042942/http://blog.chromium.org/2010/05/webm-and-vp8-land-in-chromium.html |dead-url=yes }}</ref>和其他40多家廠商共同協助發展，目的是讓VP8成為HTML5的影像格式<ref>{{citation |url=http://www.webmproject.org/code/build-prerequisites/ |title=Build Prerequisites |publisher=[[WebM]] |accessdate=2010-05-20 |archive-date=2012-06-18 |archive-url=https://www.webcitation.org/68VgQhkkK?url=http://www.webmproject.org/code/build-prerequisites/ |dead-url=no }}</ref>。WebM為一個容器格式，影像部份使用VP8，聲音格式則是使用[[Vorbis]]<ref name=xiph-webm>{{cite web|url=http://www.xiph.org/press/2010/webm/|title=Xiph.Org announces support for the WebM open media project|author=Xiph.Org|accessdate=2010-05-20|date=2010-05-19|archive-date=2011-02-22|archive-url=https://web.archive.org/web/20110222163318/http://xiph.org/press/2010/webm/|dead-url=yes}}</ref><ref name=faq>{{cite web |url=http://www.webmproject.org/about/faq/ |title=WebM FAQ |author=WebM Project |date=2010-05-19 |accessdate=2010-05-20 |archive-date=2011-02-13 |archive-url=https://web.archive.org/web/20110213202129/http://www.webmproject.org/about/faq/ |dead-url=yes }}</ref>。Internet Explorer 9可以透過安裝解碼器支援WebM影像<ref>{{cite web|url=http://blogs.msdn.com/ie/archive/2010/05/19/another-follow-up-on-html5-video-in-ie9.aspx|title=Another Follow-up on HTML5 Video in IE9|date=2010-05-19|first=Dean|last=Hachamovitch|accessdate=10 December 2010|work=Microsoft Developer Network|publisher=Microsoft|archive-date=2010-05-22|archive-url=https://web.archive.org/web/20100522114814/http://blogs.msdn.com/ie/archive/2010/05/19/another-follow-up-on-html5-video-in-ie9.aspx|dead-url=no}}</ref>，行動作業系統[[Android]]則是在2.3版（Gingerbread）之後支援WebM<ref name=webm>{{cite web|url=http://developer.android.com/sdk/android-2.3-highlights.html|accessdate=16 January 2011|publisher=''Android Developers''|title=The platform now offers built-in support for the VP8 open video compression format and the WebM open container format.|archive-date=2010-12-10|archive-url=https://web.archive.org/web/20101210235053/http://developer.android.com/sdk/android-2.3-highlights.html|dead-url=no}}</ref>。[[Adobe Systems|Adobe]]也宣佈會在將來的[[Adobe Flash Player|Flash Player]]中支援VP8影像的播放。<ref>{{citation |url=http://blogs.adobe.com/flashplatform/2010/05/adobe_support_for_vp8.html |title=Flash Player Will Support VP8 |first=Michelle |last=Perkins |publisher=Adobe |date=2010-05-19 |deadurl=yes |archiveurl=https://web.archive.org/web/20111108072045/http://blogs.adobe.com/flashplatform/2010/05/adobe_support_for_vp8.html |archivedate=2011-11-08 |accessdate=2011-11-08 }}</ref>

===WebP===
{{main|WebP}}

在2010年9月30日，Google發佈了WebP，是以VP8編碼為基礎的圖片檔案格式<ref name="Announcement-in-chromium">{{cite web
| url = http://blog.chromium.org/2010/09/webp-new-image-format-for-web.html
| title = WebP, a new image format for the Web
| work = Chromium Blog
| publisher = Google
| date = 2010-09-30
| accessdate = 2010-10-01
| first = Richard
| last = Rabbat
| archive-date = 2011-08-13
| archive-url = https://www.webcitation.org/60ukFiaUL?url=http://blog.chromium.org/2010/09/webp-new-image-format-for-web.html
| dead-url = no
}}</ref>，目的是取代現有的[[JPEG]]，作為網路圖片的傳輸使用，使用的容器格式為[[Resource Interchange File Format]]（RIFF）。

==和H.264的比較==


H.264是目前使用最多的網路影像編碼格式，因此最常拿來和VP8做比較。

[[H.264]]的編碼技術包含專利（由MPEG-LA提供授權），而且在硬體上使用需要取得授權，VP8則不需要。即使有Google的背書，但VP8仍然很難避過所有的專利，其下場可能跟[[VC-1]]一樣。管理H.264专利池的MPEG LA声称有12家公司持有Google VP8的相關专利。<ref>{{cite web|1=|url=http://www.streamingmedia.com/Articles/News/Featured-News/WebM-Patent-Fight-Ahead-for-Google-76781.aspx|title=WebM Patent Fight Ahead for Google?|author=Jan Ozer|date=2011-07-26|publisher=StreamingMedia.com|access-date=2012-08-16|archive-date=2022-03-06|archive-url=https://web.archive.org/web/20220306115232/https://www.streamingmedia.com/Articles/News/Featured-News/WebM-Patent-Fight-Ahead-for-Google-76781.aspx}}</ref>美国MPEG LA表示：“建立VP8专利池的相关准备正在进行”。<ref>{{citation |url=http://www.theregister.co.uk/2010/05/21/mpegla_mulls_patent_license_for_webm/ |title=Google open video codec may face patent clash |date=21 May 2010 |publisher=The Register |first=Cade |last=Metz |accessdate=2012-08-16 |archive-date=2010-09-21 |archive-url=https://web.archive.org/web/20100921114458/http://www.theregister.co.uk/2010/05/21/mpegla_mulls_patent_license_for_webm/ |dead-url=no }}</ref><ref>{{citation |url=http://www.betanews.com/article/Patent-pool-may-be-in-the-works-for-free-VP8-codec/1274466745 |title=Patent pool may be in the works for 'free' VP8 codec |publisher=Betanews |date=21 May 2010 |first=Scott M. |last=Fulton |accessdate=2012-08-16 |archive-date=2011-02-17 |archive-url=https://web.archive.org/web/20110217075446/http://www.betanews.com/article/Patent-pool-may-be-in-the-works-for-free-VP8-codec/1274466745 |dead-url=no }}</ref>

2013年3月，Google與[[MPEG LA]]及11個專利持有者達成協議，讓Google取得VP8以及其之前的VPx等編碼所'''可能'''侵犯的專利授權，同時Google也可以無償再次授權相關專利給VP8的使用者，此協議同時適用於下一代VPx編碼。至此MPEG LA放棄成立VP8[[專利池|專利集中授權聯盟]]，VP8的使用者將可確定無償使用此編碼而無須擔心'''可能的'''專利侵權授權金的問題。<ref name="#1"/>

根據MSU Graphics & Media Lab在2011年5月的測試，VP8需要約213%的資料量，才能達到和H.264相同的影像品質
<ref>{{cite web|url=http://www.compression.ru/video/codec_comparison/h264_2011/mpeg-4_avc_h264_video_codecs_comparison.pdf|title=Seventh MPEG-4 AVC/H.264 Video Codecs Comparison - Standard Version|date=May 2011|publisher=MSU Graphics & Media Lab (Video Group)|access-date=2011-11-09|archive-date=2022-03-14|archive-url=https://web.archive.org/web/20220314122357/https://compression.ru/video/codec_comparison/h264_2011/mpeg-4_avc_h264_video_codecs_comparison.pdf}}</ref>。

[[x264]]的開發者之一：Jason Garrett-Glaser，給了一些針對VP8的評論，他認為VP8目前並沒有实现真正的位元流規範，而且在一些編碼的技術上有所欠缺<ref>{{Cite web |url=http://x264dev.multimedia.cx/archives/486#more-486 |title=First Look: H.264 and VP8 Compared |publisher=Diary Of An x264 Developer |date=2010-07-13 |accessdate=2011-02-13 |quote=''I expect a spec will eventually be written, but it was a bit obnoxious of Google—both to the community and to their own developers—to release so early that they didn't even have their own documentation ready.'' |first=Jason |last=Garrett-Glaser |deadurl=yes |archiveurl=https://web.archive.org/web/20110122012847/http://x264dev.multimedia.cx/archives/486#more-486 |archivedate=2011-01-22 }}</ref><ref>{{Cite web | url = http://x264dev.multimedia.cx/archives/377 | title = The first in-depth technical analysis of VP8 | publisher = Diary Of An x264 Developer | date = 2010-05-19 | accessdate = 2011-02-13 | quote = ''Overall, VP8 appears to be significantly weaker than H.264 compression-wise'' | first = Jason | last = Garrett-Glaser | deadurl = yes | archiveurl = https://web.archive.org/web/20120209061213/http://x264dev.multimedia.cx/archives/377 | archivedate = 2012-02-09 }}</ref>。

==参见==
* [[HTML5]]
* [[WebM]]
* [[WebP]]
* [[Theora]]
* [[VP9]]

==参考==
{{reflist|3}}

==外部链接==
* {{en}} [http://www.webmproject.org/ WebM項目]{{Wayback|url=http://www.webmproject.org/ |date=20110214193716 }}
* {{en}} [http://static.googleusercontent.com/external_content/untrusted_dlcp/research.google.com/en/us/pubs/archive/37073.pdf Technical Overview Of VP8, An Open Source Video CODEC for the Web] {{Wayback|url=http://static.googleusercontent.com/external_content/untrusted_dlcp/research.google.com/en/us/pubs/archive/37073.pdf |date=20160304023918 }}（PDF文件）
* {{en}} [https://web.archive.org/web/20100521090604/http://x264dev.multimedia.cx/?p=377 In Depth Analysis of VP8 and WebM]
* {{zh-cn}} [http://www.ruanyifeng.com/blog/2010/05/the_first_view_of_vp8.html VP8视频格式初探] {{Wayback|url=http://www.ruanyifeng.com/blog/2010/05/the_first_view_of_vp8.html |date=20220106084904 }}-上文的简单翻译
* {{en}} [http://www.webmproject.org/media/pdf/vp8_bitstream.pdf VP8 Data Format and Decoding Specification]{{dead link|date=2017年11月 |bot=InternetArchiveBot |fix-attempted=yes }}

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[[Category:视频编解码器]]
[[Category:开放源代码]]
[[Category:电脑术语]]
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VP8 - 版本历史

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