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14 <h1>
15 <a href="http://people.skolelinux.org/pere/blog/">Petter Reinholdtsen</a>
16
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22 <div class="entry">
23 <div class="title">The video format most supported in web browsers?</div>
24 <div class="date">16th January 2011</div>
25 <div class="body"><p>The video format struggle on the web continues, and the three
26 contenders seem to be Ogg Theora, H.264 and WebM. Most video sites
27 seem to use H.264, while others use Ogg Theora. Interestingly enough,
28 the comments I see give me the feeling that a lot of people believe
29 H.264 is the most supported video format in browsers, but according to
30 the Wikipedia article on
31 <a href="http://en.wikipedia.org/wiki/HTML5_video">HTML5 video</a>,
32 this is not true. Check out the nice table of supprted formats in
33 different browsers there. The format supported by most browsers is
34 Ogg Theora, supported by released versions of Mozilla Firefox, Google
35 Chrome, Chromium, Opera, Konqueror, Epiphany, Origyn Web Browser and
36 BOLT browser, while not supported by Internet Explorer nor Safari.
37 The runner up is WebM supported by released versions of Google Chrome
38 Chromium Opera and Origyn Web Browser, and test versions of Mozilla
39 Firefox. H.264 is supported by released versions of Safari, Origyn
40 Web Browser and BOLT browser, and the test version of Internet
41 Explorer. Those wanting Ogg Theora support in Internet Explorer and
42 Safari can install plugins to get it.</p>
43
44 <p>To me, the simple conclusion from this is that to reach most users
45 without any extra software installed, one uses Ogg Theora with the
46 HTML5 video tag. Of course to reach all those without a browser
47 handling HTML5, one need fallback mechanisms. In
48 <a href="http://www.nuug.no/">NUUG</a>, we provide first fallback to a
49 plugin capable of playing MPEG1 video, and those without such support
50 we have a second fallback to the Cortado java applet playing Ogg
51 Theora. This seem to work quite well, as can be seen in an <a
52 href="http://www.nuug.no/aktiviteter/20110111-semantic-web/">example
53 from last week</a>.</p>
54
55 <p>The reason Ogg Theora is the most supported format, and H.264 is
56 the least supported is simple. Implementing and using H.264
57 require royalty payment to MPEG-LA, and the terms of use from MPEG-LA
58 are incompatible with free software licensing. If you believed H.264
59 was without royalties and license terms, check out
60 "<a href="http://webmink.com/essays/h-264/">H.264 – Not The Kind Of
61 Free That Matters</a>" by Simon Phipps.</p>
62
63 <p>A incomplete list of sites providing video in Ogg Theora is
64 available from
65 <a href="http://wiki.xiph.org/index.php/List_of_Theora_videos">the
66 Xiph.org wiki</a>, if you want to have a look. I'm not aware of a
67 similar list for WebM nor H.264.</p>
68
69 <p>Update 2011-01-16 09:40: A question from Tollef on IRC made me
70 realise that I failed to make it clear enough this text is about the
71 &lt;video&gt; tag support in browsers and not the video support
72 provided by external plugins like the Flash plugins.</p>
73 </div>
74
75 <div class="tags">Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug</a>, <a href="http://people.skolelinux.org/pere/blog/tags/standard">standard</a>, <a href="http://people.skolelinux.org/pere/blog/tags/video">video</a>.</div>
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