libpeer
webrtc-for-the-curious
libpeer | webrtc-for-the-curious | |
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11 | 13 | |
775 | 1,884 | |
- | 0.6% | |
8.1 | 5.2 | |
5 months ago | 7 months ago | |
C | Python | |
MIT License | Creative Commons Zero v1.0 Universal |
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For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
libpeer
- VoRS: Vo(IP) Simple Alternative to Mumble
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Pure C WebRTC
I am really excited about https://github.com/sepfy/libpeer. It has examples ready for ESP32 etc....
When working on KVS I wasn't familiar with the embedded space at all. I saw 'heavyweight' embedded where you were running on Linux. Then you had RTOS/No OS at all. I wasn't prepared for these devices at all. If we can make WebRTC work in the embedded space I think it will really accelerate what developers are able to build!
Remotely driven cars, security cameras, robots in hospitals that bring iPads to infectious patients etc... Creative people are building amazing things. The WebRTC/video space needs to work harder and support them :)
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I love how diverse the WebRTC space is now. Outside of this implementation you have plenty of other options!
* https://github.com/shinyoshiaki/werift-webrtc (Typescript)
* https://github.com/pion/webrtc (Golang)
* https://github.com/webrtc-rs/webrtc (Rust)
* https://github.com/algesten/str0m (Rust)
* hhttps://github.com/sepfy/libpeer (C/Embedded)
* https://webrtc.googlesource.com/src/ (C++)
* https://github.com/sipsorcery-org/sipsorcery (C#)
* https://github.com/paullouisageneau/libdatachannel (C++)
* https://github.com/elixir-webrtc (Elixir)
* https://github.com/aiortc/aiortc (Python)
* GStreamer’s webrtcbin (C)
See https://github.com/sipsorcery/webrtc-echoes for examples of some running against each other.
- WebRTC for the Curious
- Show HN: Bring phone calls into the browser (sip-to-WebRTC)
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Drop packet
I am experimenting based on the pear project (https://github.com/sepfy/pear) and using the clumsy tool to simulate the case of dropping packets.
- Pear - A WebRTC Toolkit for IoT/Embedded Devices (a work-in-progress)
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Hacker News top posts: Apr 8, 2021
A simple C implementation to stream H.264 to browser using WebRTC\ (61 comments)
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A simple C implementation to stream H.264 to browser using WebRTC
I think there's some truth in what as-j is saying. Rust binaries (and C++ ones) tend to be larger than C ones. I think the major reasons are (a) Rust dependencies being statically linked due to a lack of ABI stability, (b) inclusion of portions of the (statically linked, see a) Rust standard library used by the program where C code uses libc, (c) code bloat due to monomorphization, (d) the ease of just using a full-featured library where someone writing in C might cheat a little bit. As an example of what I mean by the last point, see sdp_attribute_get_answer in this codebase. [1] It's writing JSON, but it doesn't use a JSON library that actually escapes the included string. It just assumes the included string doesn't have a quote character in it. Is that assumption valid? Will it always be valid? I'm not sure on quick inspection.
There are ways around all of these:
* a. Static vs dynamic linkage: in an embedded system, it'd be reasonable to just produce a single userspace binary that does everything. It can change its behavior based on argv[0]. I think this is not too unusual for constrained systems even with C binaries. Eg busybox does it. If you only have one binary, you don't need dynamic linking. Also, I think it's not strictly true that Rust doesn't support dynamic linking. I think you can dynamically link everything if you ensure the whole system is built with the same compiler version.
* b. Standard library. You don't have to use it at all, or you can use it sparingly, paying only for what you use.
* c. Monomorphization. You could write (for example) a Go-like map [2] rather than relying so heavily on monomorphization. I'd love to see someone take this idea as far as possible; it might be a good idea for a lot of non-inner-loop code in general, not just on tight embedded systems.
* d. Using full-featured libraries. Obviously no one is making you do this; the same cheats available in C are available in Rust.
but in fairness, the further you go down this path, the further you are from just being able to just take advantage of the whole Rust ecosystem.
Personally, I'd still rather develop or use a #![no_std] Rust codebase than a C one. Memory safety is important to me. IOT devices are no exception to that. Their security is historically horrible but I'd like to change that.
[1] https://github.com/sepfy/pear/blob/b984c8dccaafdcdd1b181786a...
[2] https://dave.cheney.net/2018/05/29/how-the-go-runtime-implem...
webrtc-for-the-curious
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Dive into Web RTC or write SFU on your own
Here I will briefly go over the basics of how Web RTC works; for those who are interested in going a little deeper, I’ll leave the link here. In order for two peers to be able to provide themselves with RTCPeerConnection, the SDP (Session Description Protocol) protocol is used. The protocol has a key-value structure and is essentially a description of a single peer (the name speaks for itself).
- WebRTC for the Curious
- Show HN: Bring phone calls into the browser (sip-to-WebRTC)
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Ask HN: What side projects landed you a job?
I have worked four jobs related to https://github.com/pion/webrtc and one for https://webrtcforthecurious.com
Two companies used Pion. The other two were just using the protocol (WebRTC)
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Replacing WebRTC: real-time latency with WebTransport and WebCodecs
For the WebRTC jargon check out https://webrtcforthecurious.com/
If that still doesn’t cover enough I would love to hear! Always trying to make it better.
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OBS Merges WebRTC Support
It is pretty easy to get a one way trip time for packets that is sub-second! You see it with conferencing and other real-time communication things.
If you are curious on the 'how' of WebRTC I wrote a Free/Open Source book that goes into the details https://webrtcforthecurious.com/. Happy to answer any particular questions you have.
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Help: I'm facing an issue developing a webrtc app
Read this thoroughly: https://webrtcforthecurious.com
What are some alternatives?
libdatachannel - C/C++ WebRTC network library featuring Data Channels, Media Transport, and WebSockets
web-codecs - WebCodecs is a flexible web API for encoding and decoding audio and video.
openmiko - Open source firmware for Ingenic T20 based devices such as WyzeCam V2, Xiaomi Xiaofang 1S, iSmartAlarm's Spot+ and others.
broadcast-box - A broadcast, in a box.
tiny-webrtc-gw - tiny/fast webRTC video conferencing gateway
ws-tcp-proxy - Simple websocket tcp proxy.
spchcat - Speech recognition tool to convert audio to text transcripts, for Linux and Raspberry Pi.
offline-browser-communication - Demonstration of a browser connecting to Pion WebRTC without a signaling server.
cpufetch - Simple yet fancy CPU architecture fetching tool
webrtc-rtptransport - Repository for the RTPTransport specification of the WebRTC Working Group
Ory Keto - Open Source (Go) implementation of "Zanzibar: Google's Consistent, Global Authorization System". Ships gRPC, REST APIs, newSQL, and an easy and granular permission language. Supports ACL, RBAC, and other access models.
direct-sockets - Direct Sockets API for the web platform