ELIS – Multimedia Lab State of the Art Media Fragments Working Group

2/6 ELIS – Multimedia Lab W3C Media Fragments Working Group Tom Paridaens - MMLab W3C Second F2F Meeting MPEG-7 TimedText HTML 5 video SVG

3/6 ELIS – Multimedia Lab W3C Media Fragments Working Group Tom Paridaens - MMLab W3C Second F2F Meeting MPEG-7 Description standard –only support for descriptions, no hyperlinking Divides video into “VideoSegments” –Described by timestamp, spatial region or both Timestamp –Begin: MediaTimePoint YYYY-MM-DDThh:mm:ss:nnnFNNN –Duration: MediaDuration PnDTnHnMnSnNnF (nD: number of days,..) Spatial region –E.g , ,…,

4/6 ELIS – Multimedia Lab W3C Media Fragments Working Group Tom Paridaens - MMLab W3C Second F2F Meeting TimedText A standard to show text at a certain time 3 timing attributes: begin, end, and duration –Semantics equal to SMIL 2.1 Time can represent a clock-time(h:m:s:f) or an offset- time (count fraction? metric) E.g. text1 text2

5/6 ELIS – Multimedia Lab W3C Media Fragments Working Group Tom Paridaens - MMLab W3C Second F2F Meeting HTML 5 Video HTML 5 adds a video element to HTML No support for fragmentation or time reference Example: Sorry, your browser does not support the <video> element. 1066dgfql8a62.ogg HTML 5 has Time Datatypes: –Date: YYYY-MM-DD –Time: hh:mm(:ss) –Date and Time: YYYY-MM-DDThh:mm(:ss) –Time zones: UTC: add a Z at the end Others: Add time difference to UTC e.g. +7:30 or -6

6/6 ELIS – Multimedia Lab W3C Media Fragments Working Group Tom Paridaens - MMLab W3C Second F2F Meeting SVG No support for temporal fragmentation Start time and duration can be defined Start time: –When will the video start to play –Can be onLoad or after a delay Example: SVG 1.2 video example