# libwebrtc: C++ Wrapper for WebRTC Desktop and Embedded Systems

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libwebrtc is a C++ wrapper designed for WebRTC binary releases, primarily supporting Flutter-WebRTC desktop applications. It simplifies the integration of WebRTC functionalities across Windows, Linux, and various embedded systems, offering pre-compiled binaries and a clear compilation guide.

GitHub: https://github.com/webrtc-sdk/libwebrtc
OSRepos URL: https://osrepos.com/repo/webrtc-sdk-libwebrtc

## Summary

libwebrtc is a C++ wrapper designed for WebRTC binary releases, primarily supporting Flutter-WebRTC desktop applications. It simplifies the integration of WebRTC functionalities across Windows, Linux, and various embedded systems, offering pre-compiled binaries and a clear compilation guide.

## Topics

- dll
- so
- webrtc
- C++
- WebRTC
- Desktop
- Embedded
- Flutter

## Repository Information

Last analyzed by OSRepos: Mon Apr 06 2026 13:02:18 GMT+0100 (Western European Summer Time)
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## Content

## Introduction

`libwebrtc` is a robust C++ wrapper built to facilitate the use of WebRTC binary releases. With a focus on desktop and embedded environments, it serves as a crucial component for projects like `flutter-webrtc`, enabling WebRTC capabilities on Windows, Linux, and ARM-based embedded systems. This repository provides the necessary tools and instructions to compile and integrate WebRTC into your C++ applications, abstracting away much of the complexity of the underlying WebRTC library.

This project is written in C++, is licensed under MIT, and is actively maintained by the `webrtc-sdk` organization. It has garnered significant community interest, boasting over 610 stars and 119 forks.

## Installation and Compilation Guide

Getting `libwebrtc` set up involves synchronizing the WebRTC source code and then compiling the wrapper. The following steps outline the process for both Windows and Linux environments.

### 1. Create Checkout Directory

bash
mkdir libwebrtc_build
cd libwebrtc_build


### 2. Create `.gclient` Configuration

Configure `gclient` to fetch the correct WebRTC branch (`m137_release`).

bash
solutions = [
  {
    "name"        : 'src',
    "url"         : 'https://github.com/webrtc-sdk/webrtc.git@m137_release',
    "deps_file"   : 'DEPS',
    "managed"     : False,
    "custom_deps" : {
    },
    "custom_vars": {},
  },
]
target_os  = ['win'] # Change to ['linux'] for Linux compilation


### 3. Synchronize Source Code

bash
gclient sync


### 4. Clone `libwebrtc` and Apply Patch

Navigate into the `src` directory, clone `libwebrtc`, and apply the necessary audio source patch.

bash
cd src
git clone https://github.com/webrtc-sdk/libwebrtc
git apply libwebrtc/patchs/custom_audio_source_m137.patch


### 5. Modify `BUILD.gn`

Add `libwebrtc` to the `group("default")` in `src/BUILD.gn`:

patch
diff --git a/BUILD.gn b/BUILD.gn
index e60d7dd0bd..b9b6acab8b 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -29,7 +29,7 @@ if (!build_with_chromium) {
   # 'ninja default' and then 'ninja all', the second build should do no work.
   group("default") {
     testonly = true
-    deps = [ ":webrtc" ]
+    deps = [ ":webrtc","//libwebrtc", ]
     if (rtc_build_examples) {
       deps += [ "examples" ]
     }


### 6. Compile for Windows

Requires Visual Studio Community 2022. Set up environment variables and generate GN files, then compile.

bash
set DEPOT_TOOLS_WIN_TOOLCHAIN=0
set GYP_MSVS_VERSION=2022
set GYP_GENERATORS=ninja,msvs-ninja
set GYP_MSVS_OVERRIDE_PATH=C:\Program Files (x86)\Microsoft Visual Studio\2022\Community
cd src
gn gen out-debug/Windows-x64 --args="target_os=\"win\" target_cpu=\"x64\" is_component_build=false is_clang=true is_debug=true rtc_use_h264=true ffmpeg_branding=\"Chrome\" rtc_include_tests=false rtc_build_examples=false libwebrtc_desktop_capture=true" --ide=vs2022
ninja -C out-debug/Windows-x64 libwebrtc


### 7. Compile for Linux

Ensure `target_os = ['linux']` in your `.gclient` file and re-run `gclient sync`. Then, generate GN files and compile.

bash
export ARCH=x64 # x86, x64, arm, arm64
cd src
gn gen out-debug/Linux-$ARCH --args="target_os=\"linux\" target_cpu=\"$ARCH\" is_debug=true rtc_include_tests=false rtc_use_h264=true ffmpeg_branding=\"Chrome\" is_component_build=false use_rtti=true use_custom_libcxx=false rtc_enable_protobuf=false"
ninja -C out-debug/Linux-x64 libwebrtc


## Why Use libwebrtc?

`libwebrtc` offers several compelling advantages for developers working with WebRTC:

*   **Simplified Integration**: It acts as a C++ wrapper, abstracting the complexities of the raw WebRTC library, making it easier to integrate into your projects.
*   **Cross-Platform Support**: Provides binaries and compilation guides for major desktop operating systems, including Windows (x86, x64) and Linux (x86, x64, armv7, arm64), as well as embedded Linux.
*   **Flutter-WebRTC Compatibility**: Specifically designed to support `flutter-webrtc` desktop versions, bridging the gap between Flutter applications and native WebRTC functionalities.
*   **Optimized for Binary Releases**: Focuses on providing a wrapper for binary releases, streamlining the deployment process for applications that need WebRTC capabilities.

## Links

*   **GitHub Repository**: [https://github.com/webrtc-sdk/libwebrtc](https://github.com/webrtc-sdk/libwebrtc){:target="_blank"}