lynnplus/go-djiedge

Go bindings for dji-Edge-SDK

Go-DJIEdge

The go-djiedge package provides Go language bindings for the dji-edge-sdk.

The package supports all functions included in dji-edge-sdk and provides a more friendly API usage.

For more specific functions, please visit DJI Edge-SDK document: https://developer.dji.com/doc/edge-sdk-tutorial/en/

Dependency

The package only run on Linux systems, it is recommended to use Ubuntu 22.04.1 LTS

• stdc++ >=11 (recommend c++14 or higher)
• openssl >=1.1.1f
• libssh2 >=1.10.0 ,install by command sudo apt-get install libssh2-1-dev

For more software requirements, please visit DJI-Edge-SDK Document: environment-prepare

Compiler And Install

Get Package

Run the command in the project console for Install the go-djiedge package:

go get github.com/lynnplus/go-djiedge

Build

The package does not include the header files and precompiled static libraries of DJI Edge-SDK. you need to download the SDK manually.

git clone https://github.com/dji-sdk/Edge-SDK.git

By default, the package only following cgo compilation instructions are provided, so you need to manually configure the cgo system environment variables

default_build.go
#cgo LDFLAGS: -ledgesdk -lcrypto -lssh2

CGO compilation instructions can be temporarily configured in the console.

For example:

export CGO_CXXFLAGS="-std=c++14 -I{your Edge-SDK path}/include"
export CGO_LDFLAGS="-L{your Edge-SDK path}/lib/{x86_64 or aarch64}"

Custom Build

If you need to customize the build, such as using different compilation instructions, or the name of libedgesdk.a changes, this behavior can be disabled by supplying -tags custom_edge_env when building/running your application. when building with this tag you will need to supply the complete CGO environment variables yourself.

For example:

export CGO_CXXFLAGS="-std=c++14 -I{your Edge-SDK path}/include"
export CGO_LDFLAGS="-L{your Edge-SDK path}/lib/{x86_64 or aarch64} -ledgesdk -lcrypto -lssh2"

Stream Simulate

It is very inconvenient to debug real Dji-Edge devices, and Edge-SDK only supports linux (arch:x86_64/aarch64) operating system.
the package provides a simple simulation implementation, supports SDK initialization and pushing real-time camera streams, currently only supports read h264 file[edge_stream.h264].

Construction constraints that currently enable the simulation function //go:build !linux || fake_edge

The implementation file is in edge_simulation.go,can add -tags fake_edge to open it when building.

Step Tips:

1. Add fake_edge build constraints, build executable file
   go build -tags fake_edge
2. Convert mp4 file to h264 format file
   

   sudo apt-get install ffmpeg
   ffmpeg -i test.mp4 -codec copy -bsf: h264_mp4toannexb -f h264 edge_stream.h264

3. Copy the generated edge_stream.h264 to the same level directory as the executable file
4. Run