Video length information in H.264 video

[bigone]

Hi guys,

I've been looking at some H.264 video samples and comparing them to the specifications. But one thing I can't find is how the video length is encoded; or put another way, how does the player determine the play length to display?

Is it calculated based upon bitrate and file size, or is there some other mechanism? Any help in this would be much appreciated.

Thanks

[bond_d9]

depends on the container used i guess