dcsctp4j

The sctp4j project creates a JNI wrapper around the dcsctp library from libWebRTC.

Building with Java changes only

To avoid having to build all native libraries, execute resources/fetch-maven.sh to download and extract the native binaries from the latest release on the Jitsi Maven Repository.

Building the native libraries

The JNI lib will need to be rebuilt if there is a change in the WebRTC version or a change in the JNI wrapper C++ files.

A note on WebRTC

Because the checked-out Google source repositories are large, the build scripts provide an option to use already checked-out versions of DepotTools and WebRTC. Pass the path name of the these checkouts to the build scripts; the DepotTools repository will be updated to the latest version, and the WebRTC repository to the version specified in resources/WebRTC-revision.txt.

Ubuntu

Prerequisites:

• OpenJDK 11 (or newer)
• Maven
• CMake
• Git
• APT packages build-essentials, g++-aarch64-linux-gnu and their dependencies

• Clone the project
• Update the SimpleJNI subproject with

$ git submodule update --init

• Build the JNI headers

$ mvn compile

• Check out WebRTC and build the libraries (adjusting the paths to DepotTools and WebRTC as desired)

$ resources/ubuntu-build-all.sh ~/DepotTools ~/WebRTC

macOS

• OpenJDK 11 (or newer)
• XCode
• Maven
• CMake

• Clone the project
• Update the SimpleJNI subproject with

$ git submodule update --init

• Build the JNI headers

$ mvn compile

• Check out WebRTC and build the libraries (adjusting the paths to DepotTools and WebRTC as desired)

$ resources/macos-build-all.sh ~/DepotTools ~/WebRTC