Develop Reference

PJSIP + FFMPEG build error

I'm trying to build PJSIP with FFMPEG for Android.
For building FFMPEG with rtmp and openssl, I use this project:
https://github.com/cine-io/android-ffmpeg-with-rtmp
and it compiles pretty well.
Then I'm compiling pjsip 2.6 with ffmpeg. Here is the part from my build file:
APP_PLATFORM=android-${TARGET_ANDROID_API} NDK_TOOLCHAIN_VERSION=4.9 TARGET_ABI=$arch ./configure-android --use-ndk-cflags \
--with-ssl="${OPENSSL_BUILD_OUT_PATH}/libs/${arch}" \
--with-ffmpeg="${BASE_DIR}/ffmpeg-output"
>>"${FINAL_BUILD_LOGS}/${arch}.log" 2>&1
My target ABI is armeabi.
Also, i've defined these two flags:
#define PJMEDIA_HAS_VIDEO 1
#define PJMEDIA_HAS_FFMPEG 1
But the build failed with a bunch of these two errors:
error: cannot find -lbz2
error: cannot find -lasound
A have libasound2-dev and bzip2 installed on my Ubuntu 16.04 LTS VM.
Before that, I've successfully made pjsip builds with OpenH264 with no errors like this.
Is there any way to tell linker(or whatever it is) how to find those packages?

Solve that problem (thx #NandhaKumar) by compiling .a libs for each library above and adding them to pjsip library path:
Build .a libs.
Copy libs to {PJPROJECT}/third_party/lib/ folder.
Go to the build.mak.in file in your PJSIP project folder.
Add the following lines:
APP_THIRD_PARTY_LIB_FILES += $(PJ_DIR)/third_party/lib/libbz2.a
APP_THIRD_PARTY_LIB_FILES += $(PJ_DIR)/third_party/lib/libasound.a
In my case (and I still don't know why) second line and defining another line
(APP_THIRD_PARTY_LIBS += -lsound or APP_THIRD_PARTY_LIBS += -lasound) doesn't help, so I just copied this library into the android_ndk folder:
android-ndk-r10e/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/lib/gcc/arm-linux-androideabi/4.9/libasound.a

Compiling C files on Ubuntu and using them on Android

so today I've tried to use my C code in Android. I've made it work on intellij with regular generated dll files. From what I've understood, Android uses .so files instead of .dll files. So I've compiled with ubuntu and gcc, using the following commandline :
gcc -m32 -fPIC -o libilcore.so -shared -I/usr/lib/jvm/java-9-openjdk-amd64/include -I/usr/lib/jvm/java-9-openjdk-amd64/include/linux java.c -lc this went fine, no errors whatsoever and I got the .so file. I've put it in the jniLibs directory, and inside I made a armeabi directory, However when I try to load the library, it says
java.lang.UnsatisfiedLinkError: dlopen failed: "/data/app/org.packagename.test-1/lib/arm/libilcore.so" has unexpected e_machine: 3
I have no clue on what this means, I've looked it up on google, its either the wrong way to compile on ubuntu or I've done something else wrong, can anyone please help?
Thank you in advance!

Compiling FFMpeg for android

A lot of people have mentioned about compiling ffmpeg for android. But I recently tried many of them and did not find them working.
Here is what I tried.
https://github.com/guardianproject/android-ffmpeg-java
but in this I got the following errors.
/home/musil/Desktop/android-ndk-r10c-linux-x86_64/android-ndk-r10c/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gcc --sysroot=/home/musil/Desktop/android-ndk-r10c-linux-x86_64/android-ndk-r10c/platforms/android-3/arch-arm -I../x264 -mfloat-abi=softfp -mfpu=neon -mcpu=cortex-a8 -c -o /tmp/ffconf.6LOSva5W.o /tmp/ffconf.YWZ9ftQ8.c
arm-linux-androideabi-gcc: error trying to exec 'cc1': execvp: No such file or directory
C compiler test failed.
Than I have tried other way mentioned on
http://www.roman10.net/how-to-build-ffmpeg-with-ndk-r9/
but in that I got the following error.
But in that the prefix install is /usr/local/ instead of ./arm/ and arch is x86 instead of arm. And it compiles but no arm folder is created.
Does anyone know how to compile ffmpeg for ndk-r10c.
Will be very helpful if someone can point out what I am doing wrong or how can I build the ffmpeg 2.4.1 for latest ndk.
Thanks

I am not sure why you see that error. I was able to successfully compile FFMpeg and you should be able to get the .so files for all architecture from this link https://github.com/android-native-libraries

Building AOSP master branch fails in Mac OSX

I am trying to build the master branch of AOSP, but it fails with following error:
host C++: validatekeymaps <= frameworks/base/tools/validatekeymaps/Main.cpp
In file included from frameworks/base/tools/validatekeymaps/Main.cpp:17:
In file included from frameworks/native/include/input/KeyCharacterMap.h:26:
In file included from frameworks/native/include/input/Input.h:25:
system/core/include/utils/Vector.h:20:10: fatal error: 'new' file not found
#include <new>
^
1 error generated.
make: *** [out/host/darwin-x86/obj/EXECUTABLES/validatekeymaps_intermediates/Main.o] Error 1
Does anyone has any idea on this? Where the "new" file should present? How would I solve this? Any help would be greatly appreciated.

I believe is a clang error. clang does not need .h header extensions. I wouldn't bet my life on it but I will suggest updating your host clang to the newest or newer version. It is definitely a host problem. I've seen it before, but don't remember all, plus I'm on Ubuntu and don't build AOSP. I do see a recent change added -Werror now into system/core so try doing a Host clang update... even if you already have that file, an update may fix HOST include paths.
One more thought. Try: echo $(HOST_TOOLCHAIN_ROOT)
If you don't get a location you may have a clang which is too new... my reason/reference:
https://android.googlesource.com/platform/build/+/master/core/combo/HOST_darwin-x86_64.mk:
# gcc location for clang; to be updated when clang is updated
# HOST_TOOLCHAIN_ROOT is a Darwin-specific define
HOST_TOOLCHAIN_FOR_CLANG := $(HOST_TOOLCHAIN_ROOT)

Cross-Compiling GCC for ARM Android. Build Fails At GMP

I'm at the end of my rope on this one.
I'm new to Android development. I've read the GCC install documentation and parts of Embedded Android. I'm trying to cross-compile gcc 4.7 using an Android NDK toolchain built with the make-standalone-toolchain.sh script. I'm using the gcc and binutils source files from the NDK toolchain sources.
I copied the gcc-4.7 and binutils-2.23 into a directory gcc-src and created a 'build' directory alongside both, as follows:
gcc-src/gcc-4.7
gcc-src/binutils-2.23
gcc-src/build
I've symlinked the sources for
bfd,
gas,
gprof,
ld,
gprof
opcodes
from binutils to the gcc-4.7 source directory. I also ran the script in contrib/ that downloads the relevant sources for
gmp,
mpfr
mpc
and creates the appropriate symlinks
I've run configure with the (latest) following options:
sh ../gcc-4.7/configure --prefix=/usr/arm --disable-option-checking --host=arm-linux-eabi
--target=arm-linux-eabi --with-sysroot=/usr/sysroot --with-build-sysroot=/usr/sysroot --with-build-time-tools=/usr/bin --program-prefix=arm-
--disable-multilib --with-cpu=arm7 --enable-languages=c,c++,lto --disable-werror --disable-nls CC=arm-linux-androideabi-gcc GCC=arm-linux-androideabi-gcc
CFLAGS='-Wall -g -mfloat-abi=softfp -mbionic -mandroid -Wl,-lsupc++ -Wl,-lgnustl_shared'
CPPFLAGS='-Wall -g -mbionic -mandroid' LDFLAGS='-Wl,-lsupc++ -Wl,-lgnustl_shared' CXX=arm-linux-androideabi-g++
LD=arm-linux-androideabi-ld STRIP=arm-linux-androideabi-strip OBJDUMP=arm-linux-androideabi-objdump READELF=arm-linux-androideabi-readelf
AS=arm-linux-androideabi-as NM=arm-linux-androideabi-nm
LIBS='-lc -ldl -lm' CC_FOR_TARGET=arm-linux-androideabi-gcc CPP_FOR_TARGET=arm-linux-androideabi-gcc CXX_FOR_TARGET=arm-linux-androideabi-g++
GCC_FOR_TARGET=arm-linux-androideabi-gcc RANLIB_FOR_TARGET=arm-linux-androideabi-gcc-ranlib LD_FOR_TARGET=arm-linux-androideabi-ld
AS_FOR_TARGET=arm-linux-androideabi-as NM_FOR_TARGET=arm-linux-androideabi-gcc-nm AR_FOR_TARGET=arm-linux-androideabi-gcc-ar
READELF_FOR_TARGET=arm-linux-androideabi-readelf
OBJDUMP_FOR_TARGET=arm-linux-androideabi-objdump STRIP_FOR_TARGET=arm-linux-androideabi-strip
host_configargs=--with-headers=/usr/sysroot/usr/include target_configargs=/usr/sysroot/usr/include
When I run make -d...or make -d all-host...it constantly fails when it tries to compile gen-fac_ui.c because it can't find the includes stdio.h, stdint.h or string.h.
I'll add the exact error tomorrow after I re-set my build directory and start again, but I wanted to post the details and problem tonight before I pass out.
Any help...is greatly appreciated. I'm at a loss on this one.
QUICK NOTE: I noticed that the binutils src directory contains an include/ folder...I'll try symlinking that into the gcc src directory and running 'make distclean' then '../gcc-4.7/configure && make again.'
UPDATE: symlinking include/ did not fix the problem. Here's the error I'm continuously getting
make[2]: Entering directory `/project/android/tc-src/gcc/gcc-src/build/gmp'
gcc `test -f 'gen-fac_ui.c' || echo '../../gcc-4.7/gmp/'`gen-fac_ui.c -o gen-fac_ui
Putting child 0x007ddd30 (gen-fac_ui) PID 25531 on the chain.
Live child 0x007ddd30 (gen-fac_ui) PID 25531
../../gcc-4.7/gmp/gen-fac_ui.c:20:19: error: stdio.h: No such file or directory
../../gcc-4.7/gmp/gen-fac_ui.c:21:20: error: stdlib.h: No such file or directory
In file included from ../../gcc-4.7/gmp/gen-fac_ui.c:23:
../../gcc-4.7/gmp/dumbmp.c:42:20: error: string.h: No such file or directory
In file included from ../../gcc-4.7/gmp/gen-fac_ui.c:23:

I successfully compiled gen-fac_ui by doing the following:
Uninstalling the build gcc which is not (I think) needed as I'm using the cross-compiler toolchain generated by the make-standalone-toolchain.sh script from the Android NDK
Configuring the appropriate variables to set up the cross-compiler tools as the BUILD tools.
I have a different problem now, which I'll post in a different question. Basically, while gen-fac_ui compiles, it (of course) won't run.