android编译ffmpeg

Krisez 2019-10-28 02:33:36

- 编译好了ffmpeg的so库（clang编译的，ndk20，ffmpeg4.2.1/ffmpeg4.0.1）
- 引入工程，编写cmake和app.build
- fftool文件夹里的文件暂没引入

编译安装app，报错
error: 'type-name' cannot be signed or unsigned

源代码是这个unsigned avutil_version(void);

直接从编译好的include里面拖过来的
我将我以前的工程里面的moudle拖过来使用，一切正常按照我的想法运行的。

#CMAKELIST.TXT 内容

cmake_minimum_required(VERSION 3.4.1)



include_directories(

        ${CMAKE_SOURCE_DIR}/

        ${CMAKE_SOURCE_DIR}/include

)

#定义全局 my_source_path 变量

file(GLOB my_source_path

        ${CMAKE_SOURCE_DIR}/*.cpp

        ${CMAKE_SOURCE_DIR}/*.c

        )

				

add_library( 

        native-lib

        SHARED

        ${my_source_path})



add_library(avcodec SHARED IMPORTED)

add_library(avdevice SHARED IMPORTED)

add_library(avfilter SHARED IMPORTED)

add_library(avformat SHARED IMPORTED)

add_library(avutil SHARED IMPORTED)

add_library(swresample SHARED IMPORTED)

add_library(swscale SHARED IMPORTED)



set_target_properties(avcodec PROPERTIES IMPORTED_LOCATION ${CMAKE_SOURCE_DIR}/../jniLibs/${ANDROID_ABI}/libavcodec.so)

set_target_properties(avdevice PROPERTIES IMPORTED_LOCATION ${CMAKE_SOURCE_DIR}/../jniLibs/${ANDROID_ABI}/libavdevice.so)

set_target_properties(avfilter PROPERTIES IMPORTED_LOCATION ${CMAKE_SOURCE_DIR}/../jniLibs/${ANDROID_ABI}/libavfilter.so)

set_target_properties(avformat PROPERTIES IMPORTED_LOCATION ${CMAKE_SOURCE_DIR}/../jniLibs/${ANDROID_ABI}/libavformat.so)

set_target_properties(avutil PROPERTIES IMPORTED_LOCATION ${CMAKE_SOURCE_DIR}/../jniLibs/${ANDROID_ABI}/libavutil.so)

set_target_properties(swresample PROPERTIES IMPORTED_LOCATION ${CMAKE_SOURCE_DIR}/../jniLibs/${ANDROID_ABI}/libswresample.so)

set_target_properties(swscale PROPERTIES IMPORTED_LOCATION ${CMAKE_SOURCE_DIR}/../jniLibs/${ANDROID_ABI}/libswscale.so)



find_library( 

        log-lib

        log)

target_link_libraries( # Specifies the target library.

        native-lib

        avcodec

        avdevice

        avfilter

        avformat

        avutil

        swresample

        swscale

        # Links the target library to the log library

        # included in the NDK.

        ${log-lib})