Top Banner
SURFnet Video Portal The next generation of streaming video for research and higher education Andres Steijaert Product Manager SURFnet [email protected]
27

SURFnet Video Portal

Feb 05, 2022

Download

Documents

dariahiddleston
Welcome message from author
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Page 1: SURFnet Video Portal

SURFnet Video Portal

The next generation of streaming video

for research and higher education

Andres Steijaert

Product Manager [email protected]

Page 2: SURFnet Video Portal

2

SURFnet

� The national computer network for higher education and research in the Netherlands

150 Member institutions

500.000 users

Page 3: SURFnet Video Portal

3

SURFnet 5: advanced network

Backbone: 10 Gbit/s

Client connections:

up to 1 Gbit/s

Page 4: SURFnet Video Portal

4

SURFnet Video Portal

� Combining the results of projects and other initiatives in a �next generation streaming video environment�

�Manuals and instructional content

�Production

�Distribution

�Information retrieval

�Online video editing and conversion tools

Page 5: SURFnet Video Portal

5

Use of streaming video

� Rapid growth of the use of streaming material in higher education and research

� Integrationof streaming material in websites and online learning environments

Page 6: SURFnet Video Portal

6

SURFnet guide for producing streaming video

� Manual in PDF format

� Production aspects(storyboards, recording and editing audio and video)

� Publishing and distribution(on the internet)

� Copyright issues

� Examples

Page 7: SURFnet Video Portal

7

Production: source file

MPEG-2

consumer types:

6 to 8 Mb/s

(DVD quality)

1 hour

= 2700 to 3600 MB

Use the highest possible quality!

MPEG-1

1.5Mb/s

(VHS quality)

1 hour

= approximately 675 MB

Page 8: SURFnet Video Portal

8

Distribution: transcoding

MPEG-1

MPEG-2

MPEG-1

MPEG-4

Real

WMV /ASF

Quicktime

input formats output formats

Convert MPEG source file to other streamingmedia file types through web application

Page 9: SURFnet Video Portal

9

Transcoding tool: interface

Page 10: SURFnet Video Portal

10

Transcoding tool: interface

Page 11: SURFnet Video Portal

11

Distribution: Storage of streaming files

� Windows Media

� Real media

� Quicktime

� MPEG streaming server: Kasenna Mediabase XMP

� MPEG-1

� MPEG-2

� MPEG-4

SURFnet streaming servers with file management environment

Page 12: SURFnet Video Portal

12

MPEG-4

� 5 Kb/s - 100 Kb/s:Videophone

� 100 Kb/s � 1,5 Mb/s:Internet streaming

� 10 Mb/s � 100 Mb/s:Studio

� 100 Mb/s: digital Cinema

ISO MPEG-4 vs ISMA MPEG-4

Interactive streaming video

Example: MPEG-4 withEnvivio and Realplayer

Example: MPEG-4 withEnvivio and Quicktime player

Page 13: SURFnet Video Portal

13

Information retrieval: Search and browse facilities

� Not easy to find streaming files

� Solution:attach metadata tag with descriptive information to streaming file

based on Qualified Dublin Core standard

Page 14: SURFnet Video Portal

14

Information retrieval: Qualified Dublin Core Metadata model

Title

Title.Alternative

Creator

Subject

Description

Description.Abstract

Publisher

Contributor

Language

Relation

Coverage.Spatial

Coverage.Temporal

Rights

Date.Created

Date.Valid

Date.Available

Date.Issued

Type

Format.Extent

Format.Medium

Identifier

Source

Element printed in green are required fields

Page 15: SURFnet Video Portal

15

Information retrieval: Search engine

organization Y

organization X

SURFnet

Search engine

streaming server

streaming server

streaming server

streaming server

streaming server

streaming server

Metadatainput

Page 16: SURFnet Video Portal

16

Information retrieval: end user web interface

Page 17: SURFnet Video Portal

17

File protection

� Authentication layer to make streaming files only available to selective user group:Hosstname based authentication(no need to distribute username � password to end-users)

1. File is only available to one or more organizations that are part of the SURFnet community.

2. File is available to all SURFnet memberorganizations

3. File is publicly available(no file protection)

Page 18: SURFnet Video Portal

18

File protection: Admin interface

Page 19: SURFnet Video Portal

19

Example of file protectionend user screen

Page 20: SURFnet Video Portal

20

Editing tool: selection

� Select part of file

� Reference to the selection in the original file

Fragment

Page 21: SURFnet Video Portal

21

Editing tool: playlists

� Combine several streaming fragments into one stream

File Y

selection 2

playlist A

File X

selection 1

File Z

selection 3

Page 22: SURFnet Video Portal

22

Editing tool: interface

/s/surfnet/real/tnc2003.rm

Page 23: SURFnet Video Portal

23

Editing tool: interface

Page 24: SURFnet Video Portal

24

Portal website

http://video.surfnet.nl

http://videosearch.surfnet.nl

Page 25: SURFnet Video Portal

25

TF-Netcast

� TF-Netcast Task ForceCreation of a portal for live-streaming announcementsPossible extension of the portal to an academic channel for live-streams and video-on-demand.http://www.terena.nl/tech/task-forces/tf-netcast/

� TF-Netcast questionnairehttp://www.esurvey.dk/surveys/A2NTPZ

Page 26: SURFnet Video Portal

26

Page 27: SURFnet Video Portal

27

� http://video.surfnet.nl

� http://videosearch.surfnet.nl

� Editing tool V2

� http://www.terena.nl/tech/task-forces/tf-netcast/

� http://www.esurvey.dk/surveys/A2NTPZ