I am working on ffmpeg for android. I have successfully compile ffmpeg-2.0.1 after that I make Android.mk file in my NDK's sources/ffmpeg-2.0.1/android/arm as
LOCAL_PATH:= $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE:= libavcodec
LOCAL_SRC_FILES:= lib/libavcodec-55.so
LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/include
include $(PREBUILT_SHARED_LIBRARY)
After that make android project and in android project Android.mk file is as
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE := tutorial01
LOCAL_SRC_FILES := tutorial01.c
LOCAL_LDLIBS := -llog -ljnigraphics -lz
LOCAL_SHARED_LIBRARIES := libavformat libavcodec libswscale libavutil
include $(BUILD_SHARED_LIBRARY)
$(call import-module,ffmpeg-2.0.1/android/arm)
but showing a problem
*** Android NDK: Aborting . Stop.
android-ffmpeg-tutorial01line 45, external location:
/home/tech/Documents/roman10/ndk/android-ndk-r9c/build/core/prebuilt-library.mk
C/C++ Problem
My NDK is android-ndk-r9c,system is ubuntu-13.04,please anyone guide me.
thanks in advance.
go to Android Studio-> Tools -> SDK ManagerUnder SDK tools tab uncheck "NDK", "CMake", "LLDB" and then apply changes. NDK components will be removed.
Using Android Studio 2.2 and higher, you can use the NDK to compile C and C++ code into a native library and package it into your APK using Gradle, the IDE's integrated build system. Your Java code can then call functions in your native library through the Java Native Interface (JNI) framework.
Android provides Native Development Kit (NDK) to support native development in C/C++, besides the Android Software Development Kit (Android SDK) which supports Java. [TODO] more. NDK is a complex and advanced topics.
See the Android.mk structure
firstly.
Need change Android.mk
file like this :
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE := ffmpeg
LOCAL_SRC_FILES := libs/ffmpeg.so
include $(PREBUILT_SHARED_LIBRARY)
include $(CLEAR_VARS)
LOCAL_MODULE := final_ffmpeg
LOCAL_SRC_FILES := ffmpeg.cpp
LOCAL_LDLIBS := -L$(SYSROOT)/usr/lib -llog
LOCAL_PREBUILTS := libs/ffmpeg.so
#libavformat libavcodec libswscale libavutil
include $(BUILD_SHARED_LIBRARY)
p/s :
I also get the Android NDK : Aborting
problem as you when put data together like this :
LOCAL_PATH:= $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE:= ffmpeg
LOCAL_SRC_FILES:= libs/ffmpeg.so
include $(PREBUILT_SHARED_LIBRARY)
include $(CLEAR_VARS)
LOCAL_MODULE := ffmpeg
LOCAL_SRC_FILES := ffmpeg.cpp
LOCAL_SHARED_LIBRARIES := ffmpeg
include $(BUILD_SHARED_LIBRARY)
This problem happens when LOCAL_MODULE
name is duplicated.
The result will help you :
It still be exactly when you need call the C++ function in C++ file from Java file.
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