VideoLAN, a project and a non-profit organization.
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Video Dev Days 2019

The Open Multimedia Conference that frees the cone in you!

9 - 10 November, 2019, Tokyo


Video Dev Days 2019 About

The VideoLAN non-profit organisation is happy to invite you to the multimedia open-source event of the fall!

For its eleventh edition, people from the VideoLAN and open source multimedia communities will meet in Tokyo to discuss and work on the future of the open-source multimedia community

This is a technical conference, focused on low-level multimedia, like codecs and their implementations like x264 or dav1d, frameworks like FFmpeg or Gstreamer or playback libraries like libVLC.


9 - 10 November 2019




09:30 - 18:30

Community Bonding Day: Surprise!

Pokecone: Codec Wars !
The VideoLAN organization will pay for whatever costs associated with the event.
Discover your team members in a fun game around Tokyo.
Please meet in the sponsored hotel lobby (Villa Fontaine Nihombashi Hakozaki) at 9:30am.


Evening drinks

On Friday at 19h30, people are welcome to come and share a few good drinks, with all attendees.

Alcoholic and non-alcoholic drinks will be available!

08:30 - 09:00


09:00 - 09:10

Jean-Baptiste Kempf, VideoLAN

Welcome words

09:10 - 09:20

Marie Gunji, Internet Initiative Japan

Internet Initiative Japan

09:20 - 09:50

Ronald S. Bultje, Two Orioles


09:50 - 10:20

Phil Cluff, Mux

Sash and low latency adaptive streaming

10:20 - 10:50

Pradeep Ramachandran, MulticoreWare Inc.

x265 update

10:50 - 11:05


11:05 - 11:35

Thomas Daede, Mozilla

rav1e update

11:35 - 12:05

Jean-Baptiste Kempf, VideoLAN

VLC 4.0

12:05 - 12:20

Tokyo Video Tech

12:30 - 13:30

Lunch Break

Bentō sponsored by J-Stream

13:30 - 14:00

Group Photo

14:00 - 18:00

Meetups (See wiki)

19:30 - 21:30

Community Dinner

Location: Warayakiya, Ginza
You need to be on time.

09:30 - 12:00

Lightning talks (see wiki)

12:00 - 14:00


Bentō sponsored by AbemaTV

14:00 - 18:00

Unconferences (see wiki)

The actual content of the unconference track is being decided on Saturday evening. For the live schedule, check the designated page on the wiki.

19:30 - 21:30

Unofficial Dinner

Karaoke at J-House amusement bar

Who can come?

Anyone who cares about open source multimedia technologies and development. Remember that it targets a technical crowd!

If you are representing a company caring about open-source multimedia software, we would be very interested if you could co-sponsor the event.




The cost for attendance is free. Like previous years, active developers can get a full sponsorship covering travel costs. We will also provide accomodation.


If you got sponsering confirmation your hotel will be:
Hotel Villa Fontaine Tokyo - Nihombashi Hakozaki
20-10 Hakozaki-cho Nihombashi Chuo-ku Tokyo, 103-0015


Internet Initiative Japan Inc. Iidabashi Grand Bloom, 2-10-2 Fujimi, Chiyoda-ku, Tokyo 102-0071, JAPAN

Code of Conduct

This community activity is running under the VideoLAN Code of Conduct. We expect all attendees to respect our Shared Values.


The VideoLAN Dev Days are organized by the board members of the VideoLAN non-profit organization, Jean-Baptiste Kempf, Denis Charmet, Konstantin Pavlov and Hugo Beauzée-Luyssen. You can reach us at