177 lines
5.3 KiB
Markdown
177 lines
5.3 KiB
Markdown
---
|
|
title:
|
|
- QUIC with GStreamer & Rust
|
|
author:
|
|
- Sanchayan Maity
|
|
theme:
|
|
- default
|
|
classoption:
|
|
- aspectratio=169
|
|
---
|
|
|
|
# Who
|
|
|
|
- Who am I?
|
|
* Embedded Systems background
|
|
* Prefer C, Haskell and Rust
|
|
* Organize and speak at Rust and Haskell meet-ups in Bangalore
|
|
- Work?
|
|
* Software Engineer @ [asymptotic](https://asymptotic.io/)
|
|
* Open source consulting firm based out of Bangalore and Toronto
|
|
* Work on low level systems software centred around multimedia
|
|
* GStreamer, PipeWire, PulseAudio
|
|
* Language Polyglots
|
|
|
|
|
|
# Open source contributions
|
|
|
|
- [GStreamer](https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests?scope=all&state=all&author_username=SanchayanMaity)
|
|
- [gst-plugins-rs](https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests?scope=all&state=all&author_username=SanchayanMaity)
|
|
- [PipeWire](https://gitlab.freedesktop.org/pipewire/pipewire/-/merge_requests?scope=all&state=all&author_username=SanchayanMaity)
|
|
- [PulseAudio](https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/merge_requests?scope=all&state=all&author_username=SanchayanMaity)
|
|
- [Linux](https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/?qt=author&q=Sanchayan+Maity)
|
|
- [u-boot](https://source.denx.de/u-boot/u-boot/-/commits/master?search=Sanchayan%20Maity)
|
|
|
|
# Agenda
|
|
|
|
- QUIC which is a UDP-Based Multiplexed and Secure Transport and standardized in RFC 9000
|
|
- Whirlwind tour of GStreamer
|
|
- QUIC implementations in Rust
|
|
- QUIC support in GStreamer
|
|
- Demo
|
|
- Future work
|
|
|
|
# QUIC
|
|
|
|
- QUIC is pronounced exactly like the English word "quick"
|
|
- Not an acronym
|
|
- Reliable and secure transport protocol
|
|
- Addresses some of the known shortcomings of doing HTTP/2 over TCP and TLS
|
|
- Standardized QUIC in RFC 9000
|
|
- Supported by RFC 8999, RFC 9001 and RFC 9002
|
|
|
|
# Building on shoulders of giants
|
|
|
|
- HTTP/2 [RFC7540](https://www.rfc-editor.org/rfc/rfc7540) published in May 2015
|
|
- Makes use of multiplexing
|
|
- Multiple logical streams over same logical connection
|
|
- Better congestion control
|
|
- Makes better use of TCP with bandwidth saturation
|
|
- Less bandwidth consumption due to header compression
|
|
|
|
|
|
# Head of line blocking[^1]
|
|
|
|
{width=80%}
|
|
|
|
|
|
[^1]: [Head of line blocking](https://en.wikipedia.org/wiki/Head-of-line_blocking)
|
|
|
|
# Protocol
|
|
|
|
- Something new?
|
|
- TCP?
|
|
- UDP?
|
|
|
|
# Security/encryption
|
|
|
|
- No clear text version of the protocol
|
|
- Negotiation employs cryptography and security with TLS 1.3
|
|
|
|
# QUIC
|
|
|
|
- Implemented on top of UDP
|
|
- Uses UDP port numbers
|
|
- Implements re-transmission, congestion control among others
|
|
- Logical streams similar to HTTP/2
|
|
- In-order
|
|
- Reliable
|
|
- Different streams can be out-of-order
|
|
- Flow control
|
|
- Fast handshakes (0-RTT and 1-RTT)
|
|
|
|
# GStreamer
|
|
|
|
- Multiplatform Pipeline based multimedia framework
|
|
- Bindings for various languages
|
|
- Allows building complex media processing workflows
|
|
- Some applications
|
|
* PiTiVi (Video Editor)
|
|
* amaroK, Banshee, Clementine (audio players)
|
|
* Empathy (VOIP and video conferencing)
|
|
* GstLAL (gravitational wave data analysis)
|
|
* Rygel (DLNA streaming server and renderer)
|
|
* Totem (movie player for the GNOME desktop)
|
|
|
|
|
|
# Simple pipeline
|
|
|
|
```bash
|
|
gst-launch-1.0 videotestsrc ! autovideosink
|
|
gst-launch-1.0 audiotestsrc ! autoaudiosink
|
|
```
|
|
|
|
# Media pipeline[^2]
|
|
|
|
{width=80%}
|
|
|
|
[^2]: [Dynamic Pipelines](https://gstreamer.freedesktop.org/documentation/tutorials/basic/dynamic-pipelines.html?gi-language=c)
|
|
|
|
# Rust implementations
|
|
|
|
- [quinn-rs](https://github.com/quinn-rs/quinn)
|
|
- [quiche](https://github.com/cloudflare/quiche)
|
|
- [s2n-quic](https://github.com/aws/s2n-quic)
|
|
- [neqo](https://github.com/mozilla/neqo)
|
|
- [msquic](https://github.com/microsoft/msquic)
|
|
|
|
# QUIC in GStreamer
|
|
|
|
- Prior work
|
|
- [gst-quic-transport](https://github.com/bbc/gst-quic-transport)
|
|
- `quinnquicsink` and `quinnquicsrc` (Merged just a month ago)
|
|
- Written in Rust
|
|
- Uses [quinn-rs](https://github.com/quinn-rs/quinn)
|
|
- New elements `quinnquicmux` and `quinnquicdemux` to support stream multiplexing
|
|
|
|
# Audio demo
|
|
|
|
```bash
|
|
gst-launch-1.0 -v -e audiotestsrc blocksize=4096 ! \
|
|
audio/x-raw,format=S16LE,rate=48000,channels=2,layout=interleaved ! \
|
|
opusenc ! quinnquicsink use-datagram=false secure-connection=false
|
|
```
|
|
|
|
```bash
|
|
gst-launch-1.0 -v -e audiotestsrc blocksize=4096 ! \
|
|
audio/x-raw,format=S16LE,rate=48000,channels=2,layout=interleaved ! \
|
|
opusenc ! quinnquicsink use-datagram=false secure-connection=false
|
|
```
|
|
|
|
# Video demo
|
|
|
|
[quin-quic-mux](https://git.sanchayanmaity.net/sanchayanmaity/quinn-quic-mux)
|
|
|
|
- Shows stream and datagram multiplexed on same connection
|
|
- Merge request: [!1634](https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/1634)
|
|
|
|
# Future work
|
|
|
|
- Handling flow control
|
|
- Congestion control
|
|
- [RTP over QUIC](https://datatracker.ietf.org/doc/draft-ietf-avtcore-rtp-over-quic/)
|
|
- [Media over QUIC](https://datatracker.ietf.org/group/moq/about/)
|
|
|
|
# References
|
|
|
|
- [RFC 9000](https://www.rfc-editor.org/rfc/rfc9000.html)
|
|
- [Road to QUIC](https://blog.cloudflare.com/the-road-to-quic)
|
|
- [0-RTT](https://blog.cloudflare.com/even-faster-connection-establishment-with-quic-0-rtt-resumption/)
|
|
|
|
# Questions
|
|
|
|
- Reach out on
|
|
* Email: sanchayan@sanchayanmaity.net
|
|
* Mastodon: [sanchayanmaity.com](https://sanchayanmaity.com/@sanchayan)
|
|
* Telegram: https://t.me/SanchayanMaity
|
|
* Blog: [sanchayanmaity.net](https://sanchayanmaity.net/)
|