From Wikipedia, we can be informed that: HTML5 is a markup language for structuring and presenting content for the World Wide Web and a core technology of the Internet. It is the fifth revision of the HTML standard. As the video tag in HTML5 gives a strong impact to the world as a hot new standard, it is high time the web passed into HTML5 era. However, since the older standard videos were encoded in FLV (before MP4 was supported in Flash), we have to conduct some conversion to make the videos be supported by HTML5 pages. This tutorial will show you how to turn your old videos from FLV to HTML5-friendly video files: FLV to WebM, FLV to OGG, FLV to MP4 (HTML5 MP4 format).
It’s important to mention that different browsers support different HTML5 videos in different formats. For example, IE9 supports HTML5 MP4 and WebM, while Firefox 4 is compatible with HTML5 WebM or OGG as well as Chrome 6. So you should note that which exactly the format you need to convert to is.
What you need
To convert FLV to HTML5, Doremisoft FLV to HTML5 Video Converter (Video Converter for Mac) will be your perfect assistant. It can fast convert .FLV to HTML5 OGG/WebM/MP4 file format for IE, Chrome, Safari and more, as well as converting HTML5 to FLV such as OGG to FLV for the use of older version browsers. Besides, it’s available for Mac OS X Mountain Lion and Windows 8.
After downloading and launching the program, input the source FLV/HTML5 videos from the media folder you kept them by using the "Add Files" option. Since batch conversion function is supported, you can add multiple files at one time.
Click the menu bar of "Convert to" to choose the proper output format accordingly. If you are converting FLV to HTML5, you can tap the "Web share" tab, and select OGG/WebM/MP4, etc. from it. Provided that you are transcoding HTML5 to FLV, you can then hit the "Common Video" and choose FLV format.
After the settings are done, press the big blue "START" button on the bottom right to launch the conversion. Within minutes, the conversion will be perfectly done.