libdatachannel | C/C++ WebRTC network library featuring Data Channels | Websocket library

by paullouisageneau C++ Version: v0.18.4 License: MPL-2.0

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kandi X-RAY | libdatachannel Summary

libdatachannel is a C++ library typically used in Networking, Websocket applications. libdatachannel has no bugs, it has no vulnerabilities, it has a Weak Copyleft License and it has medium support. You can download it from GitHub.

libdatachannel is a standalone implementation of WebRTC Data Channels, WebRTC Media Transport, and WebSockets in C++17 with C bindings for POSIX platforms (including GNU/Linux, Android, FreeBSD, Apple macOS and iOS) and Microsoft Windows. WebRTC is a W3C and IETF standard enabling real-time peer-to-peer data and media exchange between two devices. The library aims at being both straightforward and lightweight with minimal external dependencies, to enable direct connectivity between native applications and web browsers without the pain of importing Google's bloated reference library. The interface consists of somewhat simplified versions of the JavaScript WebRTC and WebSocket APIs present in browsers, in order to ease the design of cross-environment applications.

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libdatachannel has a medium active ecosystem.

It has 1159 star(s) with 240 fork(s). There are 33 watchers for this library.

There were 1 major release(s) in the last 12 months.

There are 44 open issues and 334 have been closed. On average issues are closed in 50 days. There are 2 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of libdatachannel is v0.18.4

Quality

libdatachannel has 0 bugs and 0 code smells.

Security

libdatachannel has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

libdatachannel code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

libdatachannel is licensed under the MPL-2.0 License. This license is Weak Copyleft.

Weak Copyleft licenses have some restrictions, but you can use them in commercial projects.

Reuse

libdatachannel releases are available to install and integrate.

Installation instructions are not available. Examples and code snippets are available.

It has 1377 lines of code, 26 functions and 32 files.

It has high code complexity. Code complexity directly impacts maintainability of the code.

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libdatachannel Key Features

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libdatachannel Examples and Code Snippets

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Community Discussions

Trending Discussions on libdatachannel

How to send ffmpeg AVPacket through WebRTC (using libdatachannel)

QUESTION

How to send ffmpeg AVPacket through WebRTC (using libdatachannel)

Asked 2022-Mar-31 at 10:48

I'm encoding a video frame with the ffmpeg libraries, generating an AVPacket with compressed data.

Thanks to some recent advice here on S/O, I am trying to send that frame over a network using the WebRTC library libdatachannel, specifically by adapting the example here:

https://github.com/paullouisageneau/libdatachannel/tree/master/examples/streamer

I am seeing problems inside h264rtppacketizer.cpp (part of the library, not the example) which are almost certainly to do with how I'm providing the sample data. (I don't think that this is anything to do with libdatachannel specifically, it will be an issue with what I'm sending)

The example code reads each encoded frame from a file, and populates a sample by setting the content of the file to the contents of the file:

sample = *reinterpret_cast *>(&fileContents);

sample is just a std::vector;

I have naively copied the contents of an AVPacket->data pointer into the sample vector:

...

ANSWER

Answered 2022-Mar-31 at 09:16

The input files of the streamer example for libdatachannel use 32-bit length as NAL unit separator. Therefore, the H264RtpPacketizer instance is created with H264RtpPacketizer::Separator::Length.

If I'm not mistaken the ffmpeg output will have 4-byte start sequences as NAL unit prefix instead (which is actually more common), so if you change the packetizer setting to H264RtpPacketizer::Separator::LongStartSequence it should accept your sample.

Source https://stackoverflow.com/questions/71660975

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install libdatachannel

You can download it from GitHub.

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