Main Page

Welcome to the Media Fragments Wiki

The mission of the W3C Media Fragments Working Group, part of the Video in the Web Activity, is to address temporal and spatial media fragments in the Web using Uniform Resource Identifiers (URI). [Charter]

This wiki is access controlled.

• It is only writable to members of the W3C Media Fragments Working Group.
• In addition to this wiki, the working group also uses a public mail archive.

---

On this page: Teleconference → Discussion Pages → Deliverables → F2F Meetings

---

Teleconference

• Day and Time: Every Wednesday, 12:00 UTC
• Zakim Teleconference calendar, we are IA_MFWG
• See also: ScribeList

Discussion Pages

The main responsible (if any) is shown between brackets.

• Showcase
• Use Cases Discussion
• Issues
  • HTTP Fragment Caching
  • Protocols
• State of the Art
  • SotA Codecs
  • SotA Containers
• Glossary
• Acknowledgment
• WG Resolutions
• Protocol Time-Sequence Diagrams
• Media Fragment Headers

Deliverables

• See the W3C Editor's page: http://www.w3.org/2003/Editors/
  • We use xmlspec, see also the guide

Use Cases and Requirements for Media Fragments

Working Draft: current version, FPWD version

• Use Cases and Side Conditions
• Requirements
• Existing Technologies Survey

Media Fragments 1.0: Syntax and Processing

Working Draft:

• Syntax
  • Motivate the choice for the hash (#), explain the different behavior for the query (?) (e.g. add a link header to link back to the original resource where this new resource comes from)
    • Regarding the role of the query (?), the URI template Internet Draft might be useful. The HTTP response could have a link to a manifest file or a URI template
  • Extend the syntax to have absolute time specification that contains day and year (see RTSP RFC, section 3.7)
  • Investigate the relationship between Image Sprites and the Media Fragments URI spatial dimension (see also CSS sprites)
• UA_Server_HTTP_Communication
  • User Agent Media Fragment Resolution and Processing (Michael)
  • Essential reading: HTTP/1.1, part 5: Range Requests and Partial Responses, draft-ietf-httpbis-p5-range-06
• UA_Server_RTSP_Communication
• Semantics
  • Review of media types regarding fragment semantics (Michael)
  • MPEG-21 registration

Test Cases

• Overview
• Status Code Discussion
• Media Fragments URI test cases
  • UA test cases
  • Server test cases
  • Temporal Dimension (deprecated)
  • Approval (deprecated)

Implementation

• Implementation experiments

Liaison with Other Groups

• HTML 5: Ian Hickson suggested that HTML 5 uses the Media Fragment specification for "playing a track starting at a particular location without using script that waits for the media to load".

Holidays

• Overview

Face-to-face Meetings

[7th] Lyon (FR), 01-02 November 2010

• TPAC 2010
• F2F Meeting Agenda

[6th] Sophia Antipolis (FR), 15-16 June 2010

• F2F Meeting Agenda
  • More resources: presentations and photos
  • Results: we draw a number of schema on the clipboard, see:

CR vs CRM headers

[5th] Ghent (BE), 8-9 March 2010

• F2F Meeting Agenda
  • Minutes: 08/03/2010, 09/03/2010

[4th] Virtual, 17-18 September 2009

• F2F Meeting Agenda
  • Minutes: 17/09/2009, 18/09/2009

[3rd] Barcelona (ES), 16-17 April 2009

• Logistics
• F2F Meeting Agenda
  • Minutes: 16/04/2009, 17/04/2009
  • More resources: presentations and photos

[2nd] Ghent (BE), 9-10 December 2008

• Logistics
• F2F Meeting Agenda
  • Minutes: 09/12/2008, 10/12/2008
  • More resources: presentations and photos

[1st] Cannes (FR), 20-21 October 2008

• TPAC 2008
  • Practical information | Registration (deadline = 28-09-2008) | Hotel form (deadline = 20-09-2008)
• F2F Meeting Agenda
  • Minutes: 20/10/2008, 21/10/2008
  • More resources: presentations and photos
  • Results: we draw a number of schema on the clipboard, see:

4-way handshake (from Silvia)

2-way handshake (from Yves)

wrap-up

WG Members

DBWG

• Eric Carlson
• Michael Hausenblas
• Jack Jansen
• Philip Jägenstedt
• Yves Lafon (team contact)
• Erik Mannens (chair)
• Thierry Michel (alternate team contact)
• Guillaume Olivrin
• Daniel Park
• Conrad Parker
• Silvia Pfeiffer
• David Singer
• Raphaël Troncy (chair)
• Vassilis Tzouvaras
• Davy van Deursen
• Thomas Steiner