HTML is the markup language that makes up every page on the web. The newest version, HTML5, includes specifications for a video tag, that is meant to allow website developers to add a video to a page the same way they would add an image. In order for this to work, web browser developers (Mozilla, Webkit, Opera, etc.) have to build the video functionality into their browsers.
The following HTML5 code fragment will embed a mp4 video into a web page.
<video src="movie.mp4" poster="movie.jpg" controls>
This is fallback content to display if the browser does not support the video element.
Free Recool SWF to HTML5 Converter can convert Flash to HTML5 MP4 Video, you can view it in IE 9 ,Chrome, Safari and so on , or also can view it in Flash Player. You can choose to use HTML5 browser playback, or playback using the Flash player.There are two strategies one can take when providing both Flash and HTML5 Video:
There are positives and negatives to both strategies.
If you’re using the Apache web server or some derivative of Apache, you can use an AddType directive in your site-wide httpd.conf or in an .htaccess file in the directory where you store your video files. (If you use some other web server, consult your server’s documentation on how to set the Content-Type HTTP header for specific file types.)
AddType video/ogg .ogv
AddType video/mp4 .mp4
AddType video/webm .webm
The first line is for videos in an Ogg container. The second line is for videos in an MPEG-4 container. The third is for WebM. Set it once and forget it. If you forget to set it, your videos will fail to play in some browsers, even though you included the MIME type in the type attribute in your HTML markup. Download the .htaccess file.