Tizen and HTML5
The Tizen SDK is a comprehensive set of tools for developing Tizen web and native applications. Tizen is based on the Linux kernel and the GNU C Library implementing the Linux API. It targets a very wide range of devices including smartphones, tablets, in-vehicle infotainment (IVI) devices, smart TVs, PCs, smart cameras, wearable computing (such as Smartwatch), Blu-ray Players, Printers and Smart Home Appliances. Its purpose is to offer a consistent user experience across devices, allowing developers to use HTML5 and related Web technologies to write applications that run on supported devices.
In October 2014, the Worldwide Web Consortium elevated the HTML5 specification to ‘recommendation’ status , giving it the group’s highest level of endorsement, which is to becoming a standard. The W3C also introduced Application Foundations with the announcement of the HTML5 recommendation. Open Web Platform (OWP) is a set of technologies for developing distributed applications with the greatest interoperability among different terminal devices. HTML5 plays a key role to that.
In this framework, Tizen Association works closely with the Linux Foundation which runs the Tizen open source project (Tizen.org), with a focus on platform development and delivery.
Samsung, a member of Tizen association, has launched Tizen-based Samsung TVs and has released also the relative Tizen SDK and Caph SDK, in order to support the development of web applications and promote in the market device independent apps. Both SDKs are available for downloading at 
February 14, 2010 February 14, 2010 Article Leave a comment H.264HTML5VideoW3CYoutube
YouTube experimentally supports HTML5 Video Player
HTML5 is being developed as the next major revision of HTML (Hypertext Markup Language), the core markup language of the World Wide Web. The Web Hypertext Application Technology Working Group (WHATWG) started work on the specification in June 2004 under the name Web Applications 1.0. HTML5 is the proposed next standard for HTML 4.01, XHTML 1.0 and DOM Level 2 HTML. It aims to reduce the need for proprietary plug-in-based rich internet application (RIA) technologies such as Adobe Flash, Microsoft Silverlight, Apache Pivot, and Sun JavaFX.
HTML5 introduces a number of new elements and attributes that reflect typical usage on modern Web sites. Some of them are semantic replacements for common uses of generic block (<div>) and inline (<span>) elements, for example <nav> (website navigation block) and <footer>. Other elements provide new functionality through a standardized interface, such as the <audio> and <video> elements.
YouTube supports experimentally the new HTML framework at the following address 
This is an opt-in experiment for HTML5 support on YouTube. If you are using a supported browser, you can choose to use the HTML5 player instead of the Flash player for most videos. Your comments will help Youtube to improve and perfect the mixtures that is working on. It is possible to send your feedback directly to the Youtube team.
Right now Youtube HTML5 supports browsers that support both the video tag in HTML5 and the H.264 video codec.