Develop Reference

Can i build Linphone in Android Studio on Mac?

I think we can build it. But I am getting error to build it on Android Studio. First I download the Android Studio and NDK. Then add the PATH of Android Studio and NDK to the PATH Variable. When I run
./check_tools.sh
I get the output
Could not find automake. Please install it.
Could not find autoconf. Please install it.
Could not find pkg-config. Please install it.
Could not find ant. Please install it.
Could not find yasm. Please install it.
Could not find wget. Please install it.
Could not find libtoolize. Please install libtool.
Invalid version of nasm: your version does not support elf32 output format. If you have installed nasm, please check that your PATH env variable is set correctly.
Failed to detect required tools, aborting.
But i doubt whether i need these tool on Android Studio or not. When I run the project i get the error
java.lang.UnsatisfiedLinkError: Couldn't load linphone-armeabi-v7a: findLibrary returned null.
Can anybody tell me the solution for that.

Yes you can do this
follow the step by step guide at this blog
How to build culinphone on Android Studio using Mac OS X?
http://culinphone.wordpress.com
Here is a step to step guide.
Setup Linphone Sdk on Mac OS X
How to build Linphone in Android Studio on Mac?
Step by step guide :-
Required Knowledge :-
Android Tools
Android Studio
A little bit about mac-terminal(shell)
S/W Requirements:-
Mac OS-X with these tools (You definetely need these tools to build linphone) :-
coreutils, automake, autoconf, libtool, intltool, wget, pkgconfig ,cmake,
gmake, yasm, grep, doxygen, ImageMagick, optipng, antlr3
STEP 1:-
Concerning these useful tools you can install the tools with this command
$sudo port install coreutils automake autoconf libtool intltool wget pkgconfig cmake gmake yasm grep doxygen ImageMagick optipng antlr3
STEP 2:-
Check out these Instructions how to upgrade nasm
STEP 3:-
Then install ant by typing
brew update #update if already installed
brew install ant
If you haven’t installed brew just type command give below
its a medium size download which takes 5 mins to download
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
Just follow the process which involves installing various components. If you already have brew installed, make sure it’s up to date by executing:
brew update
Once installed you can simply type:
brew install ant
STEP 4:-
Now its time to install libtool. To install libtool run the command given below
curl -OL http://ftpmirror.gnu.org/libtool/libtool-2.4.2.tar.gz
tar -xzf libtool-2.4.2.tar.gz
cd libtool-2.4.2
./configure && make && sudo make install
STEP 5:-
if you have not installed these programmes download and install
Download Android Studio & SDK
Download Android NDK
STEP 6:-
Download git repository of LInphone Android by running command
$ sudo git clone git://git.linphone.org/linphone-android.git –recursive
Now everything is configured perfectly
STEP 7:-
Open terminal and cd into linphone-android
Now when you get into the directory on terminal then check your PATH of SDK & NDK installed on your Mac run
$ echo $PATH
if you see the path with SDK and NDK location then it’s ok to proceed skip the below part and if not then you need to setup the PATH before you execute the make and make install script in
To setup path use:-
$export PATH=/Users/<yourusername>/android-sdks/platform-tools/:/Users//android-sdks/tools/:/Users//Documents/ndk/:/nobackup/local/prog/nasm/bin/:$PATH
it’s like export PATH=(Path of your SDK platform tools folder):(Path of your SDK tools folder):(Path of your NDK folder):$PATH
This will set up the path and to confirm again run
$ echo $PATH
Now if the Path is already setup you can simply run
$ make
Now connect your Device to you Mac and see if eclipse has detected it. After the device is connected run:
$ make install
Now if everythink is OK:-
After you have made your build then now you can import it into your Android Studio.
Open Android Studio
Import Project (Eclipse,ADT,Gradle,etc.) > select linphone-android > OK

I am able to build the limphone on mac by follow the steps describe here :-
Linphone for android is not working/missing libraries

You definetely need these tools to build linphone.
Concerning nasm I had the same problem. You can use this site that instructs you how to upgrade to a newer nasm:
Instructions how to upgrade nasm
Concerning other useful tools you can install the tools below with this command:
$sudo port install coreutils automake autoconf libtool intltool wget pkgconfig cmake gmake yasm grep doxygen ImageMagick optipng antlr3
All these are found in the linphone build instructions README.md file.

Having problems compiling ffmpeg for Android

I'm trying to compile ffmpeg for Android using this guy script (https://github.com/guardianproject/android-ffmpeg) because it looked like the simplest and the whole NDK is really not my area of expertise.
So let's see what I've done so far:
Downloaded and installed a fresh Ubuntu 12.04 LTS from: http://www.ubuntu.com/download/desktop in a VirtualBox. (had some little problems with video but a few updates later in the terminal ubuntu is up and running)
installed the Android SDk and downloded/unzipped the NDK into /Documents/ndk
I used those commands to install the compiler:
$ sudo apt-get update
$ sudo apt-get upgrade
$ sudo apt-get install build-essential
$ gcc -v
$ make -v
then sudo install git (or something like that to install git)
then git clone https://github.com/guardianproject/android-ffmpeg.git
then copied from the guys page building section
cd android-ffmpeg
git submodule init
git submodule update
NDK_BASE=/path/to/android-ndk ./configure_make_everything.sh
it mostly goes well until it says:
arm-linux-androideabi-gcc is unable to create an executable file C
compiler test failed
If you think configure made a mistake,.. blaah blahh blaah
I'm not sure what it means or where to go from here.
from this I did some chmod 777 on the folders to make sure stuff can be execute.
also from this I tried his script but without any luck.
help?

decompose what the script 'config_make_everything' is doing.. and run one step at a time...
https://github.com/guardianproject/android-ffmpeg/blob/master/configure_make_everything.sh
each step will create a file like 'config.log' where you can go to the tail and find more details about what went wrong finding the compiler.
When u start using the NDK, IMO, invest a bit of learn curve time going thru its ./doc directory and making sure that you have it integrated correctly. With NDK install, there are some samples. Build a few from CLI just to make sure that the ENV is correct and that the install is good, and that u have at least some idea of the build as a repeatable process. That will prove that you can do good 'cross compiles' with the build tools. Then you can return to guardian.ffmpeg stuff.
IMO - there is alot going on with an NDK build of this project and getting it all to build without understanding any of the underlying configuration / build stack would require lots of luck.

NDK build error with cygwin

i am tying to build a tesseract project to use as a library for my project. I am getting this error with cygwin when trying to build on windows 7 with User Account Controls turned off.
$ /cygdrive/c/android-ndk-r8/ndk-build
SharedLibrary : liblept.so
C:/android-ndk-r8/toolchains/arm-linux-androideabi-4.4.3/prebuilt/windows/bin/../lib/gcc/arm-linux-androideabi/4.4.3/../../../../arm-linux-androideabi/bin/ld.exe: ./obj/local/armeabi/libgnustl_static.a: No such file: Permission denied
collect2: ld returned 1 exit status
/cygdrive/c/android-ndk-r8/build/core/build-binary.mk:369: recipe for target `obj/local/armeabi/liblept.so' failed
make: *** [obj/local/armeabi/liblept.so] Error 1
please let me know what i should do to build the project.

Sorry It's my first time answering a question.
I was having a same issue as yours.
Then I solve it using cygwin bash with command: $ chmod -R 777 /cygdrive/c/android/workspace
C:/Android/workspace is my Eclipse work space.
Some one here gave me the insight

A lot of people have struggled with compiling tesseract under Windows, and Cygwin is normally suggested, however its often not necessary.
Have you tried looking at the tess-two project on github? Its tesseract wrapped with some handy android classes, compiling a running is simply a case of :
git clone git://github.com/rmtheis/tess-two tess
cd tess
cd tess-two
ndk-build
android update project --path .
ant release
I've been able to compile the above on 3 windows7 machines, a mac, and ubuntu without any issues.

if you're developing under windows, go to the file, and change it's premissions to full control.
it will be in /obj dir

Android toolchain oddity

I am using Ubuntu 11.10 (x64), Using android NDK I am trying to build the stand alone tool chain using the following command line:
/%Some path%/android-ndk-r7b/build/tools/make-standalone-toolchain.sh' --platform=android-9 --install-dir=/%Some path%/Android/stand-aloone-toolchain
while trying to execute any of the resulting files, eg. './arm-linux-androideabi-gcc' I get 'bash: ./arm-linux-androideabi-gcc: No such file or directory'.
I have verified that the file has execute permissions, I have also verified it is a linux executable while checking that it starts with the 'ELF' notation...
Why my generated tool chain doesn't work, why do I get 'No such file or directory' while directly executing './arm-linux-androideabi-gcc' from it's local dir. ?

I am using Ubuntu (x64), it appears that the OS doesn't include the libc & libz x32 version by default, installing libc6-i386 & lib32z1 resolved the problem..

NDK - Error trying to generate a build.xml file for Hello-jni

I just installed Android NDK, r5b, and while trying to follow the steps from Exploring the hello-jni Sample, on the command line I receive the error:
MacBook-2:~ mvermant$ cd ndk/samples/hello-jni
MacBook-2:hello-jni mvermant$ android update project -p . -s
-bash: android: command not found
I'm using Eclipse Helios release 2 with Android SDK r10 and ADT 10.0.0 on MAC 10.6.6. I have also checked to have GNU Make 3.81, and installed GNU Awk(though I am not sure it's in the right place).
I've searched a lot, and seems there might be a class path missing somewhere, but I can't figure out where exactly and what to do to fix it.

You should make sure the tools directory of your android-sdk is on your (shell) path.
Something like:
export PATH="/path/to/sdk/tools:$PATH"
before you execute your command.
In general you will also need two other directories to be on your path:
/path/to/sdk/platform-tools - for adb and other android sdk tools
/path/to/ndk - for ndk-build and ndk-gdb, which are ndk tools
You can also do some setup so that you don't have to run these commands every time you open Terminal.