DroneEngage Camera Module

This module uses native webrtc to stream videos from multiple camera to WebClient.

Compile The Code

for X86

first you need webrtc compiled code to get libwebrtc.a you need to use branch

git ls-remote https://chromium.googlesource.com/external/webrtc --heads refs/remotes/branch-heads/7103

this is an old branch and you need Ubuntu 18.04 to build it.

Once you have **libwebrtc.a ** just put it in /lib/webrtc94-local/lib/x64/Debug and run

you can download a compiled version from here make debug

for Arm

We compile de_camera as part of the WEBRTC project itself. We compiled it as an example next to the examples that already exist.

use BUILD.gn file in this project to overwrite the example BUILD.gn in webrtc source, and add the current project file inside src in a folder called de_camera similar to:

/home/webrtc/webrtc/webrtc-checkout/src/examples/de_camera

then compile webrtc and it will compile project de_camera as part of the project. then you can use it in RPI or JetsonNano

To Install Scripts for Camera

Please check Script Section

sudo apt-get install nlohmann-json3-dev
sudo apt-get install libjsoncpp-dev # Install the development package
sudo apt-get install libjpeg-dev  # Install the development package
sudo apt-get install libx11-dev libexpat1-dev 

sudo apt-get install clang 
sudo apt-get install libc++-dev

How to prepare WEBRTC environment

On Ubuntu 22.04

conda create -n webrtc_7103 python=3.10
conda env activate webrtc_7103


sudo apt update
sudo apt install build-essential
sudo apt install python-is-python3
sudo apt install curl
sudo apt install libxss-dev
sudo apt install libasound2-dev
sudo apt install libpulse-dev
sudo apt install libvpx-dev
sudo apt install libopus-dev
sudo apt install libv4l-dev
sudo apt install libfontconfig1-dev
sudo apt install libxtst-dev
sudo apt install libgtk-3-dev


git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git
export PATH="$PATH:/path/to/depot_tools"
mkdir webrtc
cd webrtc
fetch --nohooks webrtc
cd src
git ls-remote https://chromium.googlesource.com/external/webrtc --heads branch-heads/7103
git checkout -b refs/branch-heads/7103
gclient sync

build/linux/sysroot_scripts/install-sysroot.py --arch=amd64

gn gen out/Default

To Compile for X86

python build/linux/sysroot_scripts/install-sysroot.py --arch=amd64

gn gen out/m137_x86 --args='is_debug=true use_system_libjpeg=false treat_warnings_as_errors=false  rtc_include_tests=false rtc_use_h264=true  rtc_build_examples=true rtc_build_tools=true rtc_exclude_audio_processing_module=true rtc_use_dummy_audio_file_devices=true target_cpu="x64" is_clang=true  '

To compile for RPI-5 / RPI-4 / RPI-Z2 W

python build/linux/sysroot_scripts/install-sysroot.py --arch=arm64

gn gen out/rpi-5_d --args='is_debug=true use_system_libjpeg=true treat_warnings_as_errors=false  rtc_include_tests=false rtc_use_h264=true  rtc_build_examples=true rtc_build_tools=true rtc_exclude_audio_processing_module=true rtc_use_dummy_audio_file_devices=true target_cpu="arm64" is_clang=true  '