Android 链接OpenCV库的顺序是什么？

我在VLC应用程序模块的实现中使用OpenCV库

我想使用函数cvSaveImage，但我遇到了很多错误：

/home/virginia/workspace/android-ndk-r9/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld: /home/virginia/workspace/OpenCV-2.4.5-android-sdk/sdk/native/libs/armeabi-v7a//libopencv_highgui.a(grfmt_jpeg.cpp.o): in function cv::JpegEncoder::write(cv::Mat const&, std::vector<int, std::allocator<int> > const&):grfmt_jpeg.cpp(.text._ZN2cv11JpegEncoder5writeERKNS_3MatERKSt6vectorIiSaIiEE+0x22c): error: undefined reference to 'jpeg_stdio_dest'
/home/virginia/workspace/android-ndk-r9/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld: /home/virginia/workspace/OpenCV-2.4.5-android-sdk/sdk/native/libs/armeabi-v7a//libopencv_highgui.a(grfmt_jpeg.cpp.o): in function cv::JpegEncoder::write(cv::Mat const&, std::vector<int, std::allocator<int> > const&):grfmt_jpeg.cpp(.text._ZN2cv11JpegEncoder5writeERKNS_3MatERKSt6vectorIiSaIiEE+0x26e): error: undefined reference to 'jpeg_write_scanlines'
/home/virginia/workspace/android-ndk-r9/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld: /home/virginia/workspace/OpenCV-2.4.5-android-sdk/sdk/native/libs/armeabi-v7a//libopencv_highgui.a(grfmt_jpeg.cpp.o): in function cv::JpegEncoder::write(cv::Mat const&, std::vector<int, std::allocator<int> > const&):grfmt_jpeg.cpp(.text._ZN2cv11JpegEncoder5writeERKNS_3MatERKSt6vectorIiSaIiEE+0x2bc): error: undefined reference to 'jpeg_write_scanlines'
/home/virginia/workspace/android-ndk-r9/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld: /home/virginia/workspace/OpenCV-2.4.5-android-sdk/sdk/native/libs/armeabi-v7a//libopencv_highgui.a(grfmt_jpeg.cpp.o): in function cv::my_jpeg_load_dht(jpeg_decompress_struct*, unsigned char*, JHUFF_TBL**, JHUFF_TBL**) [clone .constprop.36]:grfmt_jpeg.cpp(.text.unlikely._ZN2cvL16my_jpeg_load_dhtEP22jpeg_decompress_structPhPP9JHUFF_TBLS5_.constprop.36+0x94): error: undefined reference to 'jpeg_alloc_huff_table'
/home/virginia/workspace/android-ndk-r9/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld: /home/virginia/workspace/OpenCV-2.4.5-android-sdk/sdk/native/libs/armeabi-v7a//libopencv_highgui.a(grfmt_jpeg.cpp.o): in function cv::JpegDecoder::close():grfmt_jpeg.cpp(.text._ZN2cv11JpegDecoder5closeEv+0xa): error: undefined reference to 'jpeg_destroy_decompress'
/home/virginia/workspace/android-ndk-r9/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld: /home/virginia/workspace/OpenCV-2.4.5-android-sdk/sdk/native/libs/armeabi-v7a//libopencv_highgui.a(grfmt_jpeg.cpp.o): in function cv::JpegDecoder::readData(cv::Mat&):grfmt_jpeg.cpp(.text._ZN2cv11JpegDecoder8readDataERNS_3MatE+0x82): error: undefined reference to 'jpeg_start_decompress'
/home/virginia/workspace/android-ndk-r9/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld: /home/virginia/workspace/OpenCV-2.4.5-android-sdk/sdk/native/libs/armeabi-v7a//libopencv_highgui.a(grfmt_jpeg.cpp.o): in function cv::JpegDecoder::readData(cv::Mat&):grfmt_jpeg.cpp(.text._ZN2cv11JpegDecoder8readDataERNS_3MatE+0xf2): error: undefined reference to 'jpeg_read_scanlines'
/home/virginia/workspace/android-ndk-r9/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld: /home/virginia/workspace/OpenCV-2.4.5-android-sdk/sdk/native/libs/armeabi-v7a//libopencv_highgui.a(grfmt_jpeg.cpp.o): in function cv::JpegDecoder::readData(cv::Mat&):grfmt_jpeg.cpp(.text._ZN2cv11JpegDecoder8readDataERNS_3MatE+0x136): error: undefined reference to 'jpeg_finish_decompress'
/home/virginia/workspace/android-ndk-r9/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld: /home/virginia/workspace/OpenCV-2.4.5-android-sdk/sdk/native/libs/armeabi-v7a//libopencv_highgui.a(grfmt_jpeg.cpp.o): in function cv::JpegDecoder::readHeader():grfmt_jpeg.cpp(.text._ZN2cv11JpegDecoder10readHeaderEv+0x1e): error: undefined reference to 'jpeg_std_error'
/home/virginia/workspace/android-ndk-r9/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld: /home/virginia/workspace/OpenCV-2.4.5-android-sdk/sdk/native/libs/armeabi-v7a//libopencv_highgui.a(grfmt_jpeg.cpp.o): in function cv::JpegDecoder::readHeader():grfmt_jpeg.cpp(.text._ZN2cv11JpegDecoder10readHeaderEv+0x52): error: undefined reference to 'jpeg_CreateDecompress'
/home/virginia/workspace/android-ndk-r9/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld: /home/virginia/workspace/OpenCV-2.4.5-android-sdk/sdk/native/libs/armeabi-v7a//libopencv_highgui.a(grfmt_jpeg.cpp.o): in function cv::JpegDecoder::readHeader():grfmt_jpeg.cpp(.text._ZN2cv11JpegDecoder10readHeaderEv+0x92): error: undefined reference to 'jpeg_stdio_src'
/home/virginia/workspace/android-ndk-r9/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld: /home/virginia/workspace/OpenCV-2.4.5-android-sdk/sdk/native/libs/armeabi-v7a//libopencv_highgui.a(grfmt_jpeg.cpp.o): in function cv::JpegDecoder::readHeader():grfmt_jpeg.cpp(.text._ZN2cv11JpegDecoder10readHeaderEv+0xa2): error: undefined reference to 'jpeg_read_header'
/home/virginia/workspace/android-ndk-r9/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld: /home/virginia/workspace/OpenCV-2.4.5-android-sdk/sdk/native/libs/armeabi-v7a//libopencv_highgui.a(grfmt_jpeg.cpp.o): in function cv::JpegDecoder::readHeader():grfmt_jpeg.cpp(.text._ZN2cv11JpegDecoder10readHeaderEv+0x14c): error: undefined reference to 'jpeg_resync_to_restart'

我认为我必须链接位于/home/virginia/workspace/OpenCV-2.4.5-android-sdk/sdk/native/3rdparty/libs/armeabi-v7a/中的库： libIlmImf.a libjasper.a libjpeg.a libpng.a libtiff.a

但是我不知道链接它们的顺序

求你了，我需要任何帮助！

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非常感谢

我相信所提供的链接给出了您的答案；具体来说，请查看本机C/C++部分的第4点

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希望这能有所帮助。

对于那些使用CMake的人来说，这可能看起来很愚蠢，但对于我们这些因为没有时间使用它而使用make的人来说，这很有用

找到opencv.pc文件的路径并调用pkg config，它将把您需要的所有内容输出到对g++/clang++的调用中。如上所述，您也可以调用pkg config二进制文件并将其传递给opencv.pc文件，这样您就有了库顺序，但当然最好直接使用opencv.pc文件

例如，在我的makefile中：

OPENCVINCPKG=$(OPENCVLIBPATH)/pkgconfig/opencv.pc
g++ `pkg-config --cflags --libs $(OPENCVINCPKG)` myClient.cpp -o myClient

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希望这对其他人有所帮助，感谢ChronoTrigger让我来到这里。

您是否尝试过

pkg config--libs opencv

？对于这个项目，我使用的是opencv for Android（opencv-2.4.5-Android-sdk），我没有配置任何环境变量来指向这个库。其他OpenCV库已经包括在内，我没有任何问题pkg config--libs PATHTO/OpenCV.pci如果删除OpenCV_LIB_TYPE:=静态行，则默认情况下将链接动态libs。至少文件上是这么说的。乔尔，你能帮我弄一下cmake吗？我对cmake不太熟悉，我正在单独链接（target\u link\u库）每个库，但不能按正确的顺序进行链接。在cmake中有没有更好的方法，就像你说的“愚蠢”？谢谢

OPENCVINCPKG=$(OPENCVLIBPATH)/pkgconfig/opencv.pc
g++ `pkg-config --cflags --libs $(OPENCVINCPKG)` myClient.cpp -o myClient