LINPHONE for ANDROID
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To build liblinphone for Android, you must:
1) download the Android ndk (>=r5c) from google.
2) install the autotools: autoconf, automake, aclocal, libtoolize pkgconfig
3) run the ./prepare_sources.sh script in the top level directory. This will download iLBC source files and convert some assembly files in VP8 project.
$ ./prepare_sources.sh
4) finally from directory linphone-android, just execute command:
$ ${my google ndk directory}/ndk-build
To create an apk with a different package name, you need to use the ant script:
1) first you have to generate first the local.properties file using android sdk
$ ${my google sdk directory}/tools/android update project --path ${my project path}
2) change inside the build.xml file the value of the property "linphone.package.name"
3) run the ant script
$ ant debug
4) to install the newly created apk, run the following command
$ ant installd
Some options can be passed to ndk-build, like "ndk-build SOME_OPTION=SOME_VALUE"
Option Name | Possible values | Default value
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BUILD_X264 0 (don't build x264) or 1 (build x264)
BUILD_AMRNB 0 (don't build amrnb codec), light (try to use amrnb codec from android), full (build your own amrnb codec) | light
BUILD_AMRWB 0 (don't build amrwb codec), 1 (build your own amrwb codec) | 1
BUILD_GPLV3_ZRTP 0 (don't support ZRTP), 1 (support ZRTP and make the whole program GPLv3)
BUILD_SILK 0 (don't build silk plugin), 1 (build silk) [silk is Skype nonfree patented audio codec]
BUILD_G729 0 (don't build g729 plugin), 1 (build g729) [g729 is nonfree patented audio codec, contact Sipro lab for more details]
BUILD_TUNNEL 0 (don't build tunnel), 1 (build tunnel) [requires a tunnel implementation in submodules/linphone/tunnel]
In order to use ZRTP you also need to define the media_encryption property to
"zrtp" in the sip section of linphonerc file.