LongTail Video (http://www.longtailvideo.com) — a provider of self-serve video solutions for web publishers — has unveiled its latest “State of HTML5 Video” report (http://www.longtailvideo.com/html5/), showing continued growth in HTML5 support and playback across the browser market, while highlighting other trends and issues in both mobile and desktop browsers.

Approximately 74% of the browser market now offers HTML5 support, up from 68% in January. Google Chrome, Mozilla Firefox and IE9, the latest version of Internet Explorer, grew their market shares over the first quarter, while use of non-supportive and outdated versions of Internet Explorer continued to shrink.

The “State of HTML5 Video” also examines how browsers support the JavaScript API [application programming interface], a crucial component for giving developers control over how video content is displayed and interacts with the rest of a webpage. LongTail tested factors like loading, buffering, playback and volume controls, and found that 80% of scripting was reliable and consistent.

The mobile landscape is slightly different, and both iOS and Android ignore volume control features included in the JavaScript API. Appleā€™s iOS system also blocks scripted play commands, complicating the implementation of pre-, mid- and post-roll advertising.

The report also found that full-screen HTML5 video is now available from a majority of web browsers. This is crucial for HTML5 video growth, as full-screen playback creates a better experience for both viewer and content creator through an engaging, engrossing viewing session, notes LongTail Video.