- From: Chris Double <chris.double@double.co.nz>
- Date: Sat, 1 Nov 2008 09:18:33 +1300
Some video formats don't make it easy to get the duration. For example, Ogg files can be concatenated to form a single playable file. To compute the duration you need to do multiple seeks to find the chains and total the durations of each chain. Even in the unchained case a seek is required to go to the end of the file and work backwards finding a packet with a timestamp. While this is not difficult to implement it can be expensive over HTTP, requiring multiple byte range requests. The most common player for Ogg files on the web is probably the Cortado Java applet, and it has an applet parameter to specify the duration. There have been requests in #theora from people wishing that <video> supported a duration attribute that could be set in the HTML. Would such an attribute be useful? It seems to be a commonly used in current Ogg web solutions. Are there any other video formats that could benefit from this? Chris. -- http://www.bluishcoder.co.nz
Received on Friday, 31 October 2008 13:18:33 UTC