Compilé FFMPEG para android usando los archivos de bambuser. La compilación funciona bien. Sin errores. También me aseguré de cambiar el nombre del paquete en build.sh. Sin embargo, una vez que trato de vincular a los archivos, el teléfono arroja un UnsatisfiedLinkError. Este es el archivo Androkd.mk:UnsatisfiedLInkError Vinculación a FFMPEG con NDK
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
MY_LIB_PATH := ffmpeg-android/build/ffmpeg/armeabi/lib
LOCAL_MODULE := bambuser-libavcore
LOCAL_SRC_FILES := $(MY_LIB_PATH)/libavcore.so
include $(PREBUILT_SHARED_LIBRARY)
include $(CLEAR_VARS)
LOCAL_MODULE := bambuser-libavformat
LOCAL_SRC_FILES := $(MY_LIB_PATH)/libavformat.so
include $(PREBUILT_SHARED_LIBRARY)
include $(CLEAR_VARS)
LOCAL_MODULE := bambuser-libavcodec
LOCAL_SRC_FILES := $(MY_LIB_PATH)/libavcodec.so
include $(PREBUILT_SHARED_LIBRARY)
include $(CLEAR_VARS)
LOCAL_MODULE := bambuser-libavdevice
LOCAL_SRC_FILES := $(MY_LIB_PATH)/libavdevice.so
include $(PREBUILT_SHARED_LIBRARY)
include $(CLEAR_VARS)
LOCAL_MODULE := bambuser-libavfilter
LOCAL_SRC_FILES := $(MY_LIB_PATH)/libavfilter.so
include $(PREBUILT_SHARED_LIBRARY)
include $(CLEAR_VARS)
LOCAL_MODULE := bambuser-libavutil
LOCAL_SRC_FILES := $(MY_LIB_PATH)/libavutil.so
include $(PREBUILT_SHARED_LIBRARY)
include $(CLEAR_VARS)
LOCAL_MODULE := bambuser-libswscale
LOCAL_SRC_FILES := $(MY_LIB_PATH)/libswscale.so
include $(PREBUILT_SHARED_LIBRARY)
#local_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE := libtest_jni
LOCAL_SRC_FILES := libtest/video.c
LOCAL_C_INCLUDES := \
$(LOCAL_PATH)/include \
$(LOCAL_PATH)/ffmpeg-android/ffmpeg
LOCAL_LDLIBS := -L$(NDK_PLATFORMS_ROOT)/$(TARGET_PLATFORM)/arch-arm/usr/lib -L$(LOCAL_PATH) -L$(LOCAL_PATH)/ffmpeg-android/build/ffmpeg/armeabi/lib/ -lavformat -lavcodec -lavdevice -lavfilter -lavutil -lswscale -llog -lz -lm
#dl -lgcc
include $(BUILD_SHARED_LIBRARY)
VIDEO.C es muy simple:
#include <libavcodec/avcodec.h>
#include <libavformat/avformat.h>
#include <libswscale/swscale.h>
#include <jni.h>
#include <string.h>
#include <stdio.h>
#include <android/log.h>
void Java_com_bukabros_videolivewallpaper_Opengl2Renderer_loadNthFrame3
(JNIEnv * env, jobject this, jstring fileName) {
jboolean isCopy;
const char * szLogThis = (*env)->GetStringUTFChars(env, fileName, &isCopy);
__android_log_print(ANDROID_LOG_DEBUG, "NDK: ", "NDK:LC: [%s]", szLogThis);
}
TNE correspondiente código Java también es simple:
private native void loadNthFrame3(String fileName);
static {
System.loadLibrary("libtest_jni");
}
pero me sale este error:
E/AndroidRuntime(11489): FATAL EXCEPTION: main
E/AndroidRuntime(11489): java.lang.ExceptionInInitializerError
E/AndroidRuntime(11489): at com.bukabros.videolivewallpaper.VideoLiveWallpaper$CubeEngine.<init>(VideoLiveWallpaper.java:147)
E/AndroidRuntime(11489): at com.bukabros.videolivewallpaper.VideoLiveWallpaper.onCreateEngine(VideoLiveWallpaper.java:120)
E/AndroidRuntime(11489): at android.service.wallpaper.WallpaperService$IWallpaperEngineWrapper.executeMessage(WallpaperService.java:814)
E/AndroidRuntime(11489): at com.android.internal.os.HandlerCaller$MyHandler.handleMessage(HandlerCaller.java:61)
E/AndroidRuntime(11489): at android.os.Handler.dispatchMessage(Handler.java:99)
E/AndroidRuntime(11489): at android.os.Looper.loop(Looper.java:123)
E/AndroidRuntime(11489): at android.app.ActivityThread.main(ActivityThread.java:4627)
E/AndroidRuntime(11489): at java.lang.reflect.Method.invokeNative(Native Method)
E/AndroidRuntime(11489): at java.lang.reflect.Method.invoke(Method.java:521)
E/AndroidRuntime(11489): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:878)
E/AndroidRuntime(11489): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:636)
E/AndroidRuntime(11489): at dalvik.system.NativeStart.main(Native Method)
E/AndroidRuntime(11489): Caused by: java.lang.UnsatisfiedLinkError: Library libtest_jni not found
E/AndroidRuntime(11489): at java.lang.Runtime.loadLibrary(Runtime.java:461)
E/AndroidRuntime(11489): at java.lang.System.loadLibrary(System.java:557)
E/AndroidRuntime(11489): at com.bukabros.videolivewallpaper.Opengl2Renderer.<clinit>(Opengl2Renderer.java:389)
E/AndroidRuntime(11489): ... 12 more
He intentado cargar manualmente g las bibliotecas compartidas precompiladas (los archivos bambuser) en Java (usando System.loadLibrary) pero luego me dice que los archivos no se encuentran.
Si ayuda, aquí está la salida de readelf:
0x00000001 (NEEDED) Shared library: [libc.so]
0x00000001 (NEEDED) Shared library: [libstdc++.so]
0x00000001 (NEEDED) Shared library: [libm.so]
0x00000001 (NEEDED) Shared library: [/data/data/com.bukabros.videolivewallpaper/lib/libavformat.so]
0x00000001 (NEEDED) Shared library: [/data/data/com.bukabros.videolivewallpaper/lib/libavcodec.so]
0x00000001 (NEEDED) Shared library: [/data/data/com.bukabros.videolivewallpaper/lib/libavdevice.so]
0x00000001 (NEEDED) Shared library: [/data/data/com.bukabros.videolivewallpaper/lib/libavfilter.so]
0x00000001 (NEEDED) Shared library: [/data/data/com.bukabros.videolivewallpaper/lib/libavutil.so]
0x00000001 (NEEDED) Shared library: [/data/data/com.bukabros.videolivewallpaper/lib/libswscale.so]
0x00000001 (NEEDED) Shared library: [liblog.so]
0x00000001 (NEEDED) Shared library: [libz.so]
0x00000001 (NEEDED) Shared library: [libdl.so]
0x0000000e (SONAME) Library soname: [libtest_jni.so]
0x00000010 (SYMBOLIC) 0x0
0x00000004 (HASH) 0xd4
0x00000005 (STRTAB) 0x250
0x00000006 (SYMTAB) 0x130
0x0000000a (STRSZ) 712 (bytes)
0x0000000b (SYMENT) 16 (bytes)
0x00000003 (PLTGOT) 0x174c
0x00000002 (PLTRELSZ) 32 (bytes)
0x00000014 (PLTREL) REL
0x00000017 (JMPREL) 0x55c
0x6ffffffe (VERNEED) 0x53c
0x6fffffff (VERNEEDNUM) 1
0x6ffffff0 (VERSYM) 0x518
0x00000000 (NULL) 0x0
Oh sí. Estoy usando ndk r5.
THX por publicar un Androkd.mk que era muy útil! – shem