Video In Web Pages

Flash is increasingly used as a way to display video clips on web pages, a feature available since Flash Player version 6. As a video format, Flash is liked for its ability to be displayed inside browser windows, and not for its relatively limited platform compatibility. While there are other video file types that can be played on more platforms, typically 'out of the box' on the majority of operating systems, their browser plugins are limited in distribution. In contrast, the Adobe Flash Player is a dedicated browser plugin, but also available as standalone player. It is available for many popular platforms, including Windows, Mac OS X and, to some extent, Linux. Flash Video (.flv files) is a container format, meaning that it is not a video format in itself, but can contain other formats. The video in Flash is encoded in H.263, and starting with Flash player 8, it may alternatively be encoded in VP6. The audio is in MP3. The use of VP6 is common in many companies, because of the large adoption rates of Flash Player 8 and Flash Player 9.

On August 20, 2007, Adobe announced on its blog that with Update 3 of the Flash Player (currently in beta), Flash Video will also support the MPEG-4 international standard. Specifically, Flash Player will have support for video compressed in H.264 (MPEG-4 Part 10), audio compressed using AAC (MPEG-4 Part 3), the MP4, M4V, M4A, 3GP and MOV multimedia container formats (MPEG-4 Part 14), 3GPP Timed Text specification (MPEG-4 Part 17) which is a standardized subtitle format and partial parsing support for the 'ilst' atom which is the ID3 equivalent iTunes uses to store metadata. Adobe also announced that they will be gradually moving away from the proprietary FLV format to the standard MP4 format owing to functional limits with the FLV structure when streaming H.264. The final release of the Flash Player supporting MPEG-4 is expected to be available in Fall 2007.