WebRTC Build Steps

also_checkout_these_links

# Also check out these README
https://webrtc.googlecode.com/svn/trunk/talk/examples/android/README
https://sites.google.com/site/webrtc/reference/getting-started

# Or you can search any issues if you encounter any
https://code.google.com/p/webrtc/issues/list

# Here's my problem during the build
http://stackoverflow.com/questions/25481638/webrtc-build-directory-not-found/25499998#25499998

webrtc_build_steps

## building webrtc

# install dependencies:
sudo apt-get install git git-svn subversion g++ python libnss3-dev libasound2-dev libpulse-dev libjpeg62-dev libxv-dev libgtk2.0-dev libexpat1-dev lib32asound2-dev ia32-libs

# for those want to install ia32-libs on x64 linux please refer to this thread
# http://stackoverflow.com/questions/23182765/how-to-install-ia32-libs-in-ubuntu-14-04-lts

# get the depottools:
cd ~
git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git

# Add depot_tools to your PATH (I'm using zsh with ohmyzsh):
echo export PATH="$PATH":`pwd`/depot_tools >> ~/.zshrc
# Or
echo export PATH="$PATH":`pwd`/depot_tools >> ~/.bash_rc

# create a working directory:
cd ~
mkdir libjingle
cd libjingle

# get the WebRTC source:
gclient config http://webrtc.googlecode.com/svn/trunk/

# configure for android:
echo "target_os = ['android', 'unix']" >> .gclient

# start a large sync of the liblibjingle source code, which will likely take some time.  
gclient sync --nohooks

# set up env variables:
source ~/libjingle/trunk/build/android/envsetup.sh

# Install JDK 6u45 for compiling
# Download old jdk from http://ghaffarian.net/downloads/Java/JDK/
# Move jdk to home dir
mv ~/Downloads/jdk-6u45-linux-x64.bin ~/
# Extract jdk6u45 to jvm/
cd /usr/lib/jvm && /bin/sh ~/jdk-6u45-linux-x64.bin -noregister

# Choose jdk6 from list
sudo update-alternatives --install /usr/bin/javac javac /usr/lib/jvm/jdk1.6.0_45/bin/javac 50000
sudo update-alternatives --install /usr/bin/java java /usr/lib/jvm/jdk1.6.0_45/bin/java 50000
sudo update-alternatives --config javac
sudo update-alternatives --config java

# Setup JAVA_HOME for later compiling
echo "JAVA_HOME=/usr/lib/jvm/jdk1.6.0_45" >> ~/.zshrc
# or manually add JAVA_HOME at the end of PATH
echo export PATH="$PATH":$JAVA_HOME >> ~/.zshrc

# remember to make new path validate
source ~/.zshrc

# Overcome a small bug in the libjingle gwp compile scripts
cd /usr/lib
ln -s jdk1.6.0_45 java-6-sun

# make sure the java version is jdk6
java -version

# install new dependencies:
sudo ~/libjingle/trunk/build/./install-build-deps-android.sh
sudo ~/libjingle/trunk/build/./install-build-deps.sh

# Set up webrtc-related GYP variables:
export GYP_DEFINES="build_with_libjingle=1 build_with_chromium=0 libjingle_java=1 OS=android $GYP_DEFINES"

# To cause WEBRTC_LOGGING to emit to Android's logcat, add enable_tracing=1 to the $GYP_DEFINES above like: 
export GYP_DEFINES="build_with_libjingle=1 build_with_chromium=0 libjingle_java=1 OS=android enable_tracing=1 $GYP_DEFINES"

# Set up building env
sudo ~/libjingle/trunk/build/android/envsetup.sh
source ~/libjingle/trunk/build/android/envsetup.sh

# generate the build scripts:
# make sure JAVA_HOME setup correctly or this step will fail
gclient runhooks

# (Check if jdk is modified. If it's modified, go change it back to jdk6)
java -version

# build the Debug version of the AppRTCDemo(it takes about 5 mins depending on your machine):
ninja -C out/Debug -j 10 AppRTCDemo

# run this again if the target AppRTCDemo is unknown
source ./build/android/envsetup.sh 
export GYP_DEFINES="$GYP_DEFINES OS=android"
gclient runhooks

# install apk into device
adb install -r out/Debug/AppRTCDemo-debug.apk

# open up the app on the device to connect with chat room number opened in your browser
adb shell am start -n org.appspot.apprtc/.AppRTCDemoActivity -a android.intent.action.VIEW -d '"https://apprtc.appspot.com/?r=XXXXXX"'

# If app crashed, it's normal. Let me find out why.