Browser-to-browser communications play a big role in p2p video streaming. How can we ensure browser peers remain friends with one another (don't throttle) when sharing big files between them, across networks, like videos? Get ready for a quick dive on lipb2b and for quick fixes on common webrtc-related issues.

1. “Tweet my server”
http://paratii.video
@felipether & @ya7ya
August 2nd, 2018

2. Project lead at Paratii Peer to peer S.E.
@felipether
! "Felipe Sant Ana Mohamed Yahya
@ya7ya

3. Carve out new revenue streams for content makers,
and to build infrastructure that enables
decentralised video applications.
Mission

4. P2P is about raising the costs of coercion.

5. !
"

6. The Web3 Video Stack
follow us!

7. The Web3 Video Stack

8. ● Piloting web application with uploaders (> 100) and
videos (~400) (http://paratii.video/join).

9. Performance VS decentralization trade-offs.
Decentralized adaptive bitrate optimisation.
Embedding rules restrictions.
Browser limitations.
Challenges

10. Browser storage is limited in general (max 2GB)
Browser WebRTC throttling for big files (> 30Mb -> videos!)
This issue isn’t obvious if both peers are on the same
network.
Browser-to-browser

12. libp2p-webrtc-star

13. Limiting the maximum js-ipfs-bitswap message size to
under 64kb stopped throttling.
https://github.com/ipfs/js-ipfs/issues/1019 + 1088
A simple hack

14. A server in a tweet!
(check it out!)
A working p2p video ingestion pipeline and…

15. “Tweet my server”
http://paratii.video/join
@felipether & @ya7ya
August 2nd, 2018
http://portal.paratii.video
🙏 thanks!

16. Appendix
On dynamic adaptive bitrate streaming
On the cost of decentralisation

17. Choosing a suitable HLS bitrate in a decentralized system is not a
straightforward process.
Conventional algos assume a client-server architecture.
The deviation in upload/download speed between peers is substantial.
Leveraging IPFS DAG and IPFS-pubsub could allow for a better
collaboration between peers.
[possible source: https://arxiv.org/pdf/1510.04472.pdf ]
On dynamic adaptive bitrate streaming

18. Time-to-first-bit is substantially longer compared to a
centralized service.
DHT isn’t fully functioning in the browser yet.
IPFS relays are working though :)
Not all peers have all video bitrates.
Once the content is on IPFS, it can’t be removed.
On the cost of decentralisation