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Mot : - Tags -/map

Rennes Emotion Map 2010-11

19 octobre 2011, par kent1

Mis à jour : Juillet 2013

Langue : français

Type : Texte

Tags : map, biomaping, Christian Nold, école, Rennes

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Carte de Schillerkiez

13 mai 2011, par kent1

Mis à jour : Septembre 2011

Langue : English

Type : Texte

Tags : illustrator, map, berlin

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Sur d’autres sites (11481)

undefined reference to ffmpeg functions in native code using Android Studio 2.2

12 octobre 2016, par Krzysztof Kansy

I have a problem with using ffmpeg in Android Studio 2.2 using NDK 13 and new Cmake building system. FFmpeg version is 3.1.4.
The system I’m working on is Linux Mint 18 64-bit.
At the build time I’m getting undefined reference error each time I use ffpeg functions.

My MainActivity.java :

public class MainActivity extends AppCompatActivity {



    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);



    // Example of a call to a native method

    TextView tv = (TextView) findViewById(R.id.sample_text);

    tv.setText(stringFromJNI());

    }



    /**

     * A native method that is implemented by the 'native-lib' native library,

     * which is packaged with this application.

     */

    public native String stringFromJNI();



    // Used to load the 'native-lib' library on application startup.

    static {

        System.loadLibrary("native-lib");

    }

}

My native class (undefined reference is pointing to av_init_packet(&avPacket)) :

#include 

#include <string>

#include <android></android>log.h>

#include <libavcodec></libavcodec>avcodec.h>





extern "C"

jstring

Java_com_example_tito_jnitest_MainActivity_stringFromJNI(

        JNIEnv* env,

        jobject /* this */) {



    std::string hello = "Hello from C++";



    __android_log_print(ANDROID_LOG_INFO, "JNItest", "Hello from JNI!");



    AVPacket avPacket;

    av_init_packet(&amp;avPacket);



    return env->NewStringUTF(hello.c_str());

}

</string>

build.gradle script

apply plugin: 'com.android.application'



android {

    compileSdkVersion 24

    buildToolsVersion "24.0.3"

    defaultConfig {

        applicationId "com.example.tito.jnitest"

        minSdkVersion 19

        targetSdkVersion 24

        versionCode 1

        versionName "1.0"

        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

        externalNativeBuild {

            cmake {

                // Passes optional arguments to CMake.

                cppFlags "-frtti -fexceptions"

                abiFilters 'armeabi'

            }

        }

    }



    sourceSets {

        main {

            jniLibs.srcDirs = ['/home/tito/AndroidStudioProjects/JNItest/app/src/main/jniLibs']

        }

    }



    buildTypes {

        release {

            minifyEnabled false

            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'

        }

    }

    externalNativeBuild {

        cmake {

            path "CMakeLists.txt"

        }

    }

}



dependencies {

    compile fileTree(dir: 'libs', include: ['*.jar'])

    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {

        exclude group: 'com.android.support', module: 'support-annotations'

    })

    compile 'com.android.support:appcompat-v7:24.2.1'

    testCompile 'junit:junit:4.12'

}

CMakeLists.txt

cmake_minimum_required(VERSION 3.4.1)



include_directories(/home/tito/Android/Sdk/ndk-bundle/sources/ffmpeg-3.1.4/android/${ANDROID_ABI}/include)



#set(CMAKE_VERBOSE_MAKEFILE on)

#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=gnu++11")



add_library( avutil

             SHARED

             IMPORTED )



set_target_properties(

                avutil

                PROPERTIES IMPORTED_LOCATION

                /home/tito/AndroidStudioProjects/JNItest/app/src/main/jniLibs/${ANDROID_ABI}/libavutil-55.so )



add_library( swscale

             SHARED

             IMPORTED )



set_target_properties(

                swscale

                PROPERTIES IMPORTED_LOCATION

                /home/tito/AndroidStudioProjects/JNItest/app/src/main/jniLibs/${ANDROID_ABI}/libswscale-4.so )



add_library( swresample

             SHARED

             IMPORTED )



set_target_properties(

                swresample

                PROPERTIES IMPORTED_LOCATION

                /home/tito/AndroidStudioProjects/JNItest/app/src/main/jniLibs/${ANDROID_ABI}/libswresample-2.so )



add_library( avcodec

             SHARED

             IMPORTED )



set_target_properties(

                avcodec

                PROPERTIES IMPORTED_LOCATION

                /home/tito/AndroidStudioProjects/JNItest/app/src/main/jniLibs/${ANDROID_ABI}/libavcodec-57.so )



add_library( avfilter

             SHARED

             IMPORTED )



set_target_properties(

                avfilter

                PROPERTIES IMPORTED_LOCATION

                /home/tito/AndroidStudioProjects/JNItest/app/src/main/jniLibs/${ANDROID_ABI}/libavfilter-6.so )



add_library( avformat

             SHARED

             IMPORTED )



set_target_properties(

                avformat

                PROPERTIES IMPORTED_LOCATION

                /home/tito/AndroidStudioProjects/JNItest/app/src/main/jniLibs/${ANDROID_ABI}/libavformat-57.so )



add_library( avdevice

             SHARED

             IMPORTED )



set_target_properties(

                avdevice

                PROPERTIES IMPORTED_LOCATION

                /home/tito/AndroidStudioProjects/JNItest/app/src/main/jniLibs/${ANDROID_ABI}/libavdevice-57.so )



add_library( native-lib

             SHARED

             src/main/cpp/native-lib.cpp )



find_library( log-lib

              log )



target_link_libraries(native-lib ${log-lib} avutil swscale swresample avcodec avfilter avformat avdevice)

Build process of ffmpeg seemed to be successful. Here’s my build script :

#!/bin/bash

NDK=/home/tito/Android/Sdk/ndk-bundle

SYSROOT=$NDK/platforms/android-19/arch-arm/

TOOLCHAIN=$NDK/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64

function build_one

{

./configure \

--prefix=$PREFIX \

--disable-static \

--enable-shared \

--disable-doc \

--disable-ffmpeg \

--disable-ffplay \

--disable-ffprobe \

--disable-ffserver \

--disable-doc \

--cross-prefix=$TOOLCHAIN/bin/arm-linux-androideabi- \

--target-os=linux \

--arch=arm \

--enable-cross-compile \

--sysroot=$SYSROOT \

--extra-cflags="-Os -fpic -marm" \

--extra-ldflags="-marm" \

$ADDITIONAL_CONFIGURE_FLAG

make clean

make

make install

}

CPU=armeabi

PREFIX=$(pwd)/android/$CPU

build_one

One thing I noticed that could indicate that something is wrong with ffmpeg build is warning WARNING: /home/tito/Android/Sdk/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/arm-linux-androideabi-pkg-config not found, library detection may fail. during building. I’m not sure if this may be cause of problems.

I was trying to build for all of the ABIs, but for now I decided to focus on making just armeabi working. I’m having exact same failure after using e.g. arm64-v8a.

Finally, here is the gradle console’s content with error :

Executing tasks: [:app:assembleDebug]



Configuration on demand is an incubating feature.

Incremental java compilation is an incubating feature.

:app:preBuild UP-TO-DATE

:app:preDebugBuild UP-TO-DATE

:app:checkDebugManifest

:app:preReleaseBuild UP-TO-DATE

:app:prepareComAndroidSupportAnimatedVectorDrawable2421Library UP-TO-DATE

:app:prepareComAndroidSupportAppcompatV72421Library UP-TO-DATE

:app:prepareComAndroidSupportSupportCompat2421Library UP-TO-DATE

:app:prepareComAndroidSupportSupportCoreUi2421Library UP-TO-DATE

:app:prepareComAndroidSupportSupportCoreUtils2421Library UP-TO-DATE

:app:prepareComAndroidSupportSupportFragment2421Library UP-TO-DATE

:app:prepareComAndroidSupportSupportMediaCompat2421Library UP-TO-DATE

:app:prepareComAndroidSupportSupportV42421Library UP-TO-DATE

:app:prepareComAndroidSupportSupportVectorDrawable2421Library UP-TO-DATE

:app:prepareDebugDependencies

:app:compileDebugAidl UP-TO-DATE

:app:compileDebugRenderscript UP-TO-DATE

:app:generateDebugBuildConfig UP-TO-DATE

:app:generateDebugResValues UP-TO-DATE

:app:generateDebugResources UP-TO-DATE

:app:mergeDebugResources UP-TO-DATE

:app:processDebugManifest UP-TO-DATE

:app:processDebugResources

:app:generateDebugSources

:app:incrementalDebugJavaCompilationSafeguard UP-TO-DATE

:app:compileDebugJavaWithJavac UP-TO-DATE

:app:generateJsonModelDebug UP-TO-DATE

:app:externalNativeBuildDebug

  building /home/tito/AndroidStudioProjects/JNItest/app/build/intermediates/cmake/debug/obj/armeabi/libnative-lib.so

:app:externalNativeBuildDebug FAILED



FAILURE: Build failed with an exception.



* What went wrong:

Execution failed for task ':app:externalNativeBuildDebug'.

> Build command failed.

  Error while executing '/home/tito/Android/Sdk/cmake/3.6.3155560/bin/cmake' with arguments {--build /home/tito/AndroidStudioProjects/JNItest/app/.externalNativeBuild/cmake/debug/armeabi --target native-lib}

  [1/2] Building CXX object CMakeFiles/native-lib.dir/src/main/cpp/native-lib.cpp.o

  [2/2] Linking CXX shared library ../../../../build/intermediates/cmake/debug/obj/armeabi/libnative-lib.so

  FAILED: : &amp;&amp; /home/tito/Android/Sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/bin/clang++  -target armv5te-none-linux-androideabi -gcc-toolchain /home/tito/Android/Sdk/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64 --sysroot=/home/tito/Android/Sdk/ndk-bundle/platforms/android-19/arch-arm -fPIC -g -DANDROID -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -march=armv5te -mtune=xscale -msoft-float -fno-integrated-as -mthumb -Wa,--noexecstack -Wformat -Werror=format-security -fno-exceptions -fno-rtti -g -DANDROID -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -march=armv5te -mtune=xscale -msoft-float -fno-integrated-as -mthumb -Wa,--noexecstack -Wformat -Werror=format-security -fno-exceptions -fno-rtti -frtti -fexceptions -O0 -fno-limit-debug-info -O0 -fno-limit-debug-info  -Wl,--build-id -Wl,--warn-shared-textrel -Wl,--fatal-warnings -Wl,--no-undefined -Wl,-z,noexecstack -Qunused-arguments -Wl,-z,relro -Wl,-z,now -Wl,--build-id -Wl,--warn-shared-textrel -Wl,--fatal-warnings -Wl,--no-undefined -Wl,-z,noexecstack -Qunused-arguments -Wl,-z,relro -Wl,-z,now -shared -Wl,-soname,libnative-lib.so -o ../../../../build/intermediates/cmake/debug/obj/armeabi/libnative-lib.so CMakeFiles/native-lib.dir/src/main/cpp/native-lib.cpp.o  /home/tito/Android/Sdk/ndk-bundle/platforms/android-19/arch-arm/usr/lib/liblog.so ../../../../src/main/jniLibs/armeabi/libavutil-55.so ../../../../src/main/jniLibs/armeabi/libswscale-4.so ../../../../src/main/jniLibs/armeabi/libswresample-2.so ../../../../src/main/jniLibs/armeabi/libavcodec-57.so ../../../../src/main/jniLibs/armeabi/libavfilter-6.so ../../../../src/main/jniLibs/armeabi/libavformat-57.so ../../../../src/main/jniLibs/armeabi/libavdevice-57.so -lm "/home/tito/Android/Sdk/ndk-bundle/sources/cxx-stl/gnu-libstdc++/4.9/libs/armeabi/libgnustl_static.a" "-latomic" &amp;&amp; :

  /home/tito/AndroidStudioProjects/JNItest/app/src/main/cpp/native-lib.cpp:18: error: undefined reference to 'av_init_packet(AVPacket*)'

  clang++: error: linker command failed with exit code 1 (use -v to see invocation)

  ninja: build stopped: subcommand failed.





* Try:

Run with --info or --debug option to get more log output.



* Exception is:

org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':app:externalNativeBuildDebug'.

    at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:69)

    at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:46)

    at org.gradle.api.internal.tasks.execution.PostExecutionAnalysisTaskExecuter.execute(PostExecutionAnalysisTaskExecuter.java:35)

    at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:66)

    at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:58)

    at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:52)

    at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:52)

    at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:53)

    at org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOnceTaskExecuter.java:43)

    at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:203)

    at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:185)

    at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.processTask(AbstractTaskPlanExecutor.java:66)

    at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.run(AbstractTaskPlanExecutor.java:50)

    at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor.process(DefaultTaskPlanExecutor.java:25)

    at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter.execute(DefaultTaskGraphExecuter.java:110)

    at org.gradle.execution.SelectedTaskExecutionAction.execute(SelectedTaskExecutionAction.java:37)

    at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:37)

    at org.gradle.execution.DefaultBuildExecuter.access$000(DefaultBuildExecuter.java:23)

    at org.gradle.execution.DefaultBuildExecuter$1.proceed(DefaultBuildExecuter.java:43)

    at org.gradle.execution.DryRunBuildExecutionAction.execute(DryRunBuildExecutionAction.java:32)

    at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:37)

    at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:30)

    at org.gradle.initialization.DefaultGradleLauncher$4.run(DefaultGradleLauncher.java:153)

    at org.gradle.internal.Factories$1.create(Factories.java:22)

    at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:91)

    at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:53)

    at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:150)

    at org.gradle.initialization.DefaultGradleLauncher.access$200(DefaultGradleLauncher.java:32)

    at org.gradle.initialization.DefaultGradleLauncher$1.create(DefaultGradleLauncher.java:98)

    at org.gradle.initialization.DefaultGradleLauncher$1.create(DefaultGradleLauncher.java:92)

    at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:91)

    at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:63)

    at org.gradle.initialization.DefaultGradleLauncher.doBuild(DefaultGradleLauncher.java:92)

    at org.gradle.initialization.DefaultGradleLauncher.run(DefaultGradleLauncher.java:83)

    at org.gradle.launcher.exec.InProcessBuildActionExecuter$DefaultBuildController.run(InProcessBuildActionExecuter.java:99)

    at org.gradle.tooling.internal.provider.runner.BuildModelActionRunner.run(BuildModelActionRunner.java:46)

    at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35)

    at org.gradle.tooling.internal.provider.runner.SubscribableBuildActionRunner.run(SubscribableBuildActionRunner.java:58)

    at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35)

    at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:48)

    at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:30)

    at org.gradle.launcher.exec.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:81)

    at org.gradle.launcher.exec.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:46)

    at org.gradle.launcher.daemon.server.exec.ExecuteBuild.doBuild(ExecuteBuild.java:52)

    at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)

    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)

    at org.gradle.launcher.daemon.server.exec.WatchForDisconnection.execute(WatchForDisconnection.java:37)

    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)

    at org.gradle.launcher.daemon.server.exec.ResetDeprecationLogger.execute(ResetDeprecationLogger.java:26)

    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)

    at org.gradle.launcher.daemon.server.exec.RequestStopIfSingleUsedDaemon.execute(RequestStopIfSingleUsedDaemon.java:34)

    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)

    at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:74)

    at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:72)

    at org.gradle.util.Swapper.swap(Swapper.java:38)

    at org.gradle.launcher.daemon.server.exec.ForwardClientInput.execute(ForwardClientInput.java:72)

    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)

    at org.gradle.launcher.daemon.server.health.DaemonHealthTracker.execute(DaemonHealthTracker.java:47)

    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)

    at org.gradle.launcher.daemon.server.exec.LogToClient.doBuild(LogToClient.java:60)

    at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)

    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)

    at org.gradle.launcher.daemon.server.exec.EstablishBuildEnvironment.doBuild(EstablishBuildEnvironment.java:72)

    at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)

    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)

    at org.gradle.launcher.daemon.server.health.HintGCAfterBuild.execute(HintGCAfterBuild.java:41)

    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)

    at org.gradle.launcher.daemon.server.exec.StartBuildOrRespondWithBusy$1.run(StartBuildOrRespondWithBusy.java:50)

    at org.gradle.launcher.daemon.server.DaemonStateCoordinator$1.run(DaemonStateCoordinator.java:237)

    at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)

    at org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)

Caused by: org.gradle.internal.UncheckedException: Build command failed.

Error while executing '/home/tito/Android/Sdk/cmake/3.6.3155560/bin/cmake' with arguments {--build /home/tito/AndroidStudioProjects/JNItest/app/.externalNativeBuild/cmake/debug/armeabi --target native-lib}

[1/2] Building CXX object CMakeFiles/native-lib.dir/src/main/cpp/native-lib.cpp.o

[2/2] Linking CXX shared library ../../../../build/intermediates/cmake/debug/obj/armeabi/libnative-lib.so

FAILED: : &amp;&amp; /home/tito/Android/Sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/bin/clang++  -target armv5te-none-linux-androideabi -gcc-toolchain /home/tito/Android/Sdk/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64 --sysroot=/home/tito/Android/Sdk/ndk-bundle/platforms/android-19/arch-arm -fPIC -g -DANDROID -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -march=armv5te -mtune=xscale -msoft-float -fno-integrated-as -mthumb -Wa,--noexecstack -Wformat -Werror=format-security -fno-exceptions -fno-rtti -g -DANDROID -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -march=armv5te -mtune=xscale -msoft-float -fno-integrated-as -mthumb -Wa,--noexecstack -Wformat -Werror=format-security -fno-exceptions -fno-rtti -frtti -fexceptions -O0 -fno-limit-debug-info -O0 -fno-limit-debug-info  -Wl,--build-id -Wl,--warn-shared-textrel -Wl,--fatal-warnings -Wl,--no-undefined -Wl,-z,noexecstack -Qunused-arguments -Wl,-z,relro -Wl,-z,now -Wl,--build-id -Wl,--warn-shared-textrel -Wl,--fatal-warnings -Wl,--no-undefined -Wl,-z,noexecstack -Qunused-arguments -Wl,-z,relro -Wl,-z,now -shared -Wl,-soname,libnative-lib.so -o ../../../../build/intermediates/cmake/debug/obj/armeabi/libnative-lib.so CMakeFiles/native-lib.dir/src/main/cpp/native-lib.cpp.o  /home/tito/Android/Sdk/ndk-bundle/platforms/android-19/arch-arm/usr/lib/liblog.so ../../../../src/main/jniLibs/armeabi/libavutil-55.so ../../../../src/main/jniLibs/armeabi/libswscale-4.so ../../../../src/main/jniLibs/armeabi/libswresample-2.so ../../../../src/main/jniLibs/armeabi/libavcodec-57.so ../../../../src/main/jniLibs/armeabi/libavfilter-6.so ../../../../src/main/jniLibs/armeabi/libavformat-57.so ../../../../src/main/jniLibs/armeabi/libavdevice-57.so -lm "/home/tito/Android/Sdk/ndk-bundle/sources/cxx-stl/gnu-libstdc++/4.9/libs/armeabi/libgnustl_static.a" "-latomic" &amp;&amp; :

/home/tito/AndroidStudioProjects/JNItest/app/src/main/cpp/native-lib.cpp:18: error: undefined reference to 'av_init_packet(AVPacket*)'

clang++: error: linker command failed with exit code 1 (use -v to see invocation)

ninja: build stopped: subcommand failed.



    at org.gradle.internal.UncheckedException.throwAsUncheckedException(UncheckedException.java:45)

    at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:78)

    at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.doExecute(AnnotationProcessingTaskFactory.java:228)

    at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.execute(AnnotationProcessingTaskFactory.java:221)

    at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.execute(AnnotationProcessingTaskFactory.java:210)

    at org.gradle.api.internal.AbstractTask$TaskActionWrapper.execute(AbstractTask.java:621)

    at org.gradle.api.internal.AbstractTask$TaskActionWrapper.execute(AbstractTask.java:604)

    at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:80)

    at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:61)

    ... 70 more

Caused by: Build command failed.

Error while executing '/home/tito/Android/Sdk/cmake/3.6.3155560/bin/cmake' with arguments {--build /home/tito/AndroidStudioProjects/JNItest/app/.externalNativeBuild/cmake/debug/armeabi --target native-lib}

[1/2] Building CXX object CMakeFiles/native-lib.dir/src/main/cpp/native-lib.cpp.o

[2/2] Linking CXX shared library ../../../../build/intermediates/cmake/debug/obj/armeabi/libnative-lib.so

FAILED: : &amp;&amp; /home/tito/Android/Sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/bin/clang++  -target armv5te-none-linux-androideabi -gcc-toolchain /home/tito/Android/Sdk/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64 --sysroot=/home/tito/Android/Sdk/ndk-bundle/platforms/android-19/arch-arm -fPIC -g -DANDROID -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -march=armv5te -mtune=xscale -msoft-float -fno-integrated-as -mthumb -Wa,--noexecstack -Wformat -Werror=format-security -fno-exceptions -fno-rtti -g -DANDROID -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -march=armv5te -mtune=xscale -msoft-float -fno-integrated-as -mthumb -Wa,--noexecstack -Wformat -Werror=format-security -fno-exceptions -fno-rtti -frtti -fexceptions -O0 -fno-limit-debug-info -O0 -fno-limit-debug-info  -Wl,--build-id -Wl,--warn-shared-textrel -Wl,--fatal-warnings -Wl,--no-undefined -Wl,-z,noexecstack -Qunused-arguments -Wl,-z,relro -Wl,-z,now -Wl,--build-id -Wl,--warn-shared-textrel -Wl,--fatal-warnings -Wl,--no-undefined -Wl,-z,noexecstack -Qunused-arguments -Wl,-z,relro -Wl,-z,now -shared -Wl,-soname,libnative-lib.so -o ../../../../build/intermediates/cmake/debug/obj/armeabi/libnative-lib.so CMakeFiles/native-lib.dir/src/main/cpp/native-lib.cpp.o  /home/tito/Android/Sdk/ndk-bundle/platforms/android-19/arch-arm/usr/lib/liblog.so ../../../../src/main/jniLibs/armeabi/libavutil-55.so ../../../../src/main/jniLibs/armeabi/libswscale-4.so ../../../../src/main/jniLibs/armeabi/libswresample-2.so ../../../../src/main/jniLibs/armeabi/libavcodec-57.so ../../../../src/main/jniLibs/armeabi/libavfilter-6.so ../../../../src/main/jniLibs/armeabi/libavformat-57.so ../../../../src/main/jniLibs/armeabi/libavdevice-57.so -lm "/home/tito/Android/Sdk/ndk-bundle/sources/cxx-stl/gnu-libstdc++/4.9/libs/armeabi/libgnustl_static.a" "-latomic" &amp;&amp; :

/home/tito/AndroidStudioProjects/JNItest/app/src/main/cpp/native-lib.cpp:18: error: undefined reference to 'av_init_packet(AVPacket*)'

clang++: error: linker command failed with exit code 1 (use -v to see invocation)

ninja: build stopped: subcommand failed.



    at com.android.build.gradle.tasks.ExternalNativeBuildTaskUtils.executeBuildProcessAndLogError(ExternalNativeBuildTaskUtils.java:233)

    at com.android.build.gradle.tasks.ExternalNativeBuildTask.executeProcessBatch(ExternalNativeBuildTask.java:231)

    at com.android.build.gradle.tasks.ExternalNativeBuildTask.build(ExternalNativeBuildTask.java:163)

    at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:75)

    ... 77 more





BUILD FAILED



Total time: 0.723 secs

Can anyone tell me what I’m doing wrong here ?

how to install and run phpize

13 décembre 2016, par Hrishikesh Choudhari
I have been meaning to install ffmpeg as an extension to my php setup. So before I can install it, I need to phpize it. I installed php5-dev by sudo apt-get install php5-dev But now when I run phpize I get the following error :
```
phpize

Cannot find config.m4. 

Make sure that you run '/usr/bin/phpize' in the top level source directory of the module
```
The location of my php.ini is /usr/local/zend/etc/php.ini

From another online resource i tried this
```
sudo apt-get install autoconf automake libtool m4
```
But all of them are already installed.

Locate config.m4 didnt return anything.

Any pointers here how I can get phpize and thus, ffmpeg up and running ?

android.mk LOCAL_MODULE_FILENAME should not contain extensions

25 février 2015, par nmxprime

i am trying to build some of the files from libavcodec and libavutil

Following this, i created Android.mk file as below :

jni/Android.mk contains

LOCAL_PATH := $(call my-dir)



FFMPEG_TOP := $(LOCAL_PATH)



include $(CLEAR_VARS)



include $(FFMPEG_TOP)/libavutil/Android.mk

include $(FFMPEG_TOP)/libavcodec/Android.mk







LOCAL_PATH := $(FFMPEG_TOP)

LOCAL_MODULE := mylib

LOCAL_ARM_MODE := arm  # remove this if you want thumb mode

LOCAL_SRC_FILES := myfunc1.c myfunc2.c maincfunction.c 3rdparty1.c 3rdparty2.c



LOCAL_SRC_FILES += libavcodec.a libavutil.a



LOCAL_LDLIBS := -llog



include $(BUILD_SHARED_LIBRARY)

jni/libavcodec/Android.mk contains

LOCAL_PATH:= $(call my-dir)



include $(CLEAR_VARS)



SOURCE_H264_DECODER += h264.c h264idct.c h264pred.c h264_parser.c cabac.c

SOURCE_H264_ENCODER += h264enc.c h264dspenc.c



SOURCE_HAVE_ARM = \

    arm/dsputil_arm.c        \

    arm/dsputil_arm_s.S        \

    arm/jrevdct_arm.S \

    arm/mpegvideo_arm.c        \

    arm/simple_idct_arm.S



SOURCE_HAVE_ARMV5TE = \

    arm/mpegvideo_armv5te.c \

    arm/mpegvideo_armv5te_s.S \

    arm/simple_idct_armv5te.S



SOURCE_HAVE_ARMVFP = \

    arm/dsputil_vfp.S \

    arm/float_arm_vfp.S



SOURCE_HAVE_ARMV6 = arm/simple_idct_armv6.S



LOCAL_SRC_FILES := \

   allcodecs.c \

   audioconvert.c \

   bitstream.c \

   bitstream_filter.c \

   dsputil.c \

   eval.c \

   faanidct.c \

   imgconvert.c \

   jrevdct.c \

   opt.c \

   options.c \

   parser.c \

   raw.c \

   resample.c \

   resample2.c \

   simple_idct.c \

   utils.c



LOCAL_SRC_FILES += $(SOURCE_H263_ENCODER)                 

LOCAL_SRC_FILES += $(SOURCE_H264_DECODER)



LOCAL_SRC_FILES += $(SOURCE_HAVE_ARM)                

LOCAL_SRC_FILES += $(SOURCE_HAVE_ARMV5TE)                

LOCAL_SRC_FILES += $(SOURCE_HAVE_ARMVFP)



LOCAL_MODULE := libavcodec



LOCAL_PRELINK_MODULE := false





LOCAL_C_INCLUDES :=                           \

    $(FFMPEG_TOP)/                         \

    $(FFMPEG_TOP)/libavutil/                \

    $(LOCAL_PATH)                            \

    $(LOCAL_PATH)/arm/



LOCAL_CFLAGS += -O4 -mno-thumb-interwork -mno-thumb -marm -DHAVE_AV_CONFIG_H



include $(BUILD_STATIC_LIBRARY)

jni/libavutil/Android.mk contains
LOCAL_PATH := $(call my-dir)

include $(CLEAR_VARS)



LOCAL_SRC_FILES := \

   adler32.c \

   aes.c \

   avstring.c \

   base64.c \

   crc.c \

   des.c \

   fifo.c \

   intfloat_readwrite.c \

   lfg.c \

   lls.c \

   log.c \

   lzo.c \

   mathematics.c \

   md5.c \

   mem.c \

   random.c \

   random_seed.c \

   rational.c \

   rc4.c \

   sha1.c \

   tree.c \

   utils.c



LOCAL_MODULE := libavutil



LOCAL_PRELINK_MODULE := false



LOCAL_C_INCLUDES :=                                 \

    $(FFMPEG_TOP)/                                \

    $(LOCAL_PATH)                 \

    $(LOCAL_PATH)/arm/



LOCAL_CFLAGS += -O4 -mno-thumb-interwork -mno-thumb -marm -DHAVE_AV_CONFIG_H



include $(BUILD_STATIC_LIBRARY)

The problem addressed here is not relavant to what i am facing, though the error is similar.

The error i got is :

Android NDK: jni/inner/Android.mk:mylib: LOCAL_MODULE_FILENAME should not include file extensions

Android NDK: jni/inner/Android.mk:mylib: LOCAL_MODULE_FILENAME must not contain a file extension

Please help !!
[So often i am meeting headless problems !!]

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