- From: Henri Sivonen <hsivonen@iki.fi>
- Date: Thu, 1 Mar 2007 13:59:17 +0200
On Mar 1, 2007, at 08:26, Lachlan Hunt wrote: > The browser could send along the list of supported MIME types in > it's accept header for video formats, like: > > Accept: application/ogg, video/mpeg, video/mp4, application/mp4, > video/quicktime, */*;q=0.1 Content negotiation is like a box of chocolates. You never know what you are going to GET. :-) The problem in this case is that the media types map roughly to the container formats. However, the codecs are what really count. For example, MPEG-4 Simple Profile, MPEG-4 Advanced Simple Profile and H. 264 all live in the video/mp4 container. However, support for these codecs and their zillion subprofiles varies. (Yet another example why optional profiles in spec are bad for interop. The profiling of the MPEG-4 video stuff is worse than any Web spec "Mobile Profile".) -- Henri Sivonen hsivonen at iki.fi http://hsivonen.iki.fi/
Received on Thursday, 1 March 2007 03:59:17 UTC