VOC

Infrastructure Review

AGS, c3voc, FeM and iSystems

Opening

directly with audio, translations,

und Soße-und-Scharf

Streaming CDN

17 edge relays
3 inhouse relays
DTAG Extrawurst via 33C3 network
130 TB delivered to clients

Format overflow

Multi-Format-Multi-Quality-Multi-Audio-Stream-Multi-Everything

5 rooms × 3 qualities × 3 languages × 2 codecs

= 90 video feeds

= 90 feeds that can break

Adaptive quality and dynamic language selection

some ffmpeg extensions – patch incoming

DASH

10GE all the things!

4x 10GE boxes, 1x 40GE

not used to capacity

Watch more streams or we'll have to start producing 4k video…

Build your own

Tallylight/Intercom

RasPi + Mumble + Voctomix = ❤️

https://github.com/voc/voctomix/tree/voctopanel/example-scripts/voctolight

Voctomix

DIY Videomixer

Flash?

There is no Flash…

Flash was needed for HLS Relive seeking
starting on day two we replaced that last flash component with http://clappr.io

Assembly

We have Kadsen

Showing a complete c3voc-Setup for teaching and hacking

Build your own c3voc!

Angels

Overwhelming interest!

Over 250 Angels

12h Angel-Shifts worked for each Talk

Subtitles

Available in Saal 1 and 2 on two screens

Operated by more than 80 angels

Moved to Saal G exclusively for Methodisch Inkorrekt with six angels simultaneously

Saal 1: 26865 lines (1033780 chars)

Saal 2: 21424 lines (824441 chars) (by 14:15)

An average of 507 strokes per minute!

First subtitles already released (Opening)

contributers welcome on c3subtitles.de

VOC