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Linphone is an open source softphone for voice and video over IP calling and instant messaging.

It is fully SIP-based, for all calling, presence and IM features.

General description is available from linphone web site

License

Copyright © Belledonne Communications

Linphone is dual licensed, and is available either :

understand and agree with the terms of this license before using it (see LICENSE file for

details).

  • under a proprietary license, for a fee, to be used in closed source applications. Contact

Belledonne Communications for any question about costs and services.

Documentation

What's new

Now the default way of building linphone-android is to download the AAR SDK in our maven repository. Compared to previous versions, this project no longer uses submodules developper has to build in order to get a working app. However, if you wish to use a locally compiled SDK see below how to proceed.

We offer different flavors for the SDK in our maven repository: org.linphone.no-video (a build without video) and org.linphone.legacy (old java wrapper if you didn't migrate your app code to the new one yet).

The repository structure has also been cleaned and updated, and changing the package name can now be done in a single step. This allows developpers to keep a stable version as well as a developpment one on the same device easily.

Building the app

If you have Android Studio, simply open the project, wait for the gradle synchronization and then build/install the app. It will download the linphone library from our Maven repository as an AAR file so you don't have to build anything yourself.

If you don't have Android Studio, you can build and install the app using gradle:

./gradlew assembleDebug

will compile the APK file (assembleRelease to instead if you want to build a release package), and then

./gradlew installDebug

to install the generated APK in the previous step (use installRelease instead if you built a release package).

APK files are stored within ./app/build/outputs/apk/debug/ and ./app/build/outputs/apk/release/ directories.

Building a local SDK

  1. Clone the linphone-sdk repository from out gitlab:
git clone https://gitlab.linphone.org/BC/public/linphone-sdk.git --recursive

  1. Follow the instructions in the linphone-sdk/README file to build the SDK.

  2. Create or edit the gradle.properties file in $GRADLE_USER_HOME (usually ~/.gradle) file and add the absolute path to your linphone-sdk build directory, for example:

LinphoneSdkBuildDir=/home/<username>/linphone-sdk/build/
  1. Rebuild the app in Android Studio.

Native debugging

  1. Install LLDB from SDK Tools in Android-studio.

  2. In Android-studio go to Run->Edit Configurations->Debugger.

  3. Select 'Dual' or 'Native' and add the path to linphone-sdk debug libraries (build/libs-debug/ for example).

  4. Open native file and put your breakpoint on it.

  5. Make sure you are using the debug AAR in the app/build.gradle script and not the release one (to have faster builds by default the release AAR is used even for debug APK flavor).

  6. Debug app.

Troubleshouting

If you encounter the couldn't find "libc++_shared.so" crash when the app starts, simply clean the project in Android Studio (under Build menu) and build again.

When submitting an issue, please attach the matching library logs. To enable them, go to Settings -> Advanced and toggle "Debug Mode".

Then restart the app, reproduce the issue and upload the logs using the "Upload logs" button on the About page.

Create an APK with a different package name

Before the 4.1 release, there were a lot of files to edit to change the package name. Now, simply edit the app/build.gradle file and change the value returned by method getPackageName() The next build will automatically use this value everywhere thanks to manifestPlaceholders feature of gradle and Android.

You may have already noticed that the app installed by Android Studio has org.linphone.debug package name. If you build the app as release, the package name will be org.linphone.

Firebase push notifications

Now that Google Cloud Messaging has been deprecated and will be completely removed on April 11th 2019, the only official way of using push notifications is through Firebase.

However to make Firebase push notifications work, the project needs to have a file named app/google-services.json that contains some confidential informations, so you won't find it (it has been added to the .gitignore file). This means that if you compile this project, you won't have push notification feature working in the app!

To enable them, just add your own google-services.json in the app folder.

Translations

We use transifex so the community can translate the strings of the app in their own language.

Note for developpers: here's how to push/pull string resources to/from transifex:

tx pull -af

to update local translations with latest transifex changes

tx push -s -f --no-interactive

to push new strings to transifex so they can be translated.

CONTRIBUTIONS

In order to submit a patch for inclusion in linphone's source code:

  1. First make sure your patch applies to latest git sources before submitting: patches made to old versions can't and won't be merged.
  2. Fill out and send us an email with the link of pullrequest and the Contributor Agreement for your patch to be included in the git tree.

The goal of this agreement to grant us peaceful exercise of our rights on the linphone source code, while not losing your rights on your contribution.