RFC 2424 (rfc2424) - Page 1 of 4
Content Duration MIME Header Definition
Alternative Format: Original Text Document
Network Working Group G. Vaudreuil
Request for Comments: 2424 Lucent Technologies
Category: Standards Track G. Parsons
Northern Telecom
September 1998
Content Duration
MIME Header Definition
Status of this Memo
This document specifies an Internet standards track protocol for the
Internet community, and requests discussion and suggestions for
improvements. Please refer to the current edition of the "Internet
Official Protocol Standards" (STD 1) for the standardization state
and status of this protocol. Distribution of this memo is unlimited.
Copyright Notice
Copyright (C) The Internet Society (1998). All Rights Reserved.
Overview
This document describes the MIME header Content-Duration that is
intended for use with any timed media content (typically audio/* or
video/*).
1. Abstract
This document describes the MIME header Content-Duration that is
intended for use with any time varying media content (typically
audio/* or video/*). The length of time is represented in seconds
without any units indication.
2. Content-Duration Header Field
Time varying media contents, for example, a spoken voice message or a
video clip, have an inherent time duration. Many audio and video
encodings may include their duration as header information or may
allow accurate calculation based on the byte length of the data.
However, it may be useful to present the time duration of the content
in a MIME header to allow its simple determination without dealing
with the actual content.
Vaudreuil & Parsons Standards Track