关于opencv2.4.9增加自定义摄像头识别的问题

mikehu

• 各位兄弟姐妹，不知道大家有没有将opencv2.4.9移植到CORTEX-A9开发板上的经历，由于板子上的摄像头是CCD摄像头，不是传统意义上的usb摄像头，通过opencv里面的捕获摄像头函数不能识别到插在板子上的摄像头，我就想在opencv源码highgui下添加自己设备实现代码，cap_xxx.cpp，修改了一些其他的文件，但是编译老是通不过，真不知道怎么办了。
  
• mikehu:
  
• [ 34%] Built target pch_Generate_opencv_perf_core
  Linking CXX executable ../../bin/opencv_perf_core
  /usr/local/arm-cortex_a9-eabi-4.7-eglibc-2.18/bin/../lib/gcc/arm-cortex_a9-linux-gnueabi/4.7.4/../../../../arm-cortex_a9-linux-gnueabi/bin/ld.bfd: warning: libnxv4l2.so, needed by ../../lib/libopencv_highgui.so, not found (try using -rpath or -rpath-link)
  /usr/local/arm-cortex_a9-eabi-4.7-eglibc-2.18/bin/../lib/gcc/arm-cortex_a9-linux-gnueabi/4.7.4/../../../../arm-cortex_a9-linux-gnueabi/bin/ld.bfd: warning: libv4l2-nexell.so, needed by ../../lib/libopencv_highgui.so, not found (try using -rpath or -rpath-link)
  /usr/local/arm-cortex_a9-eabi-4.7-eglibc-2.18/bin/../lib/gcc/arm-cortex_a9-linux-gnueabi/4.7.4/../../../../arm-cortex_a9-linux-gnueabi/bin/ld.bfd: warning: libnxvip.so, needed by ../../lib/libopencv_highgui.so, not found (try using -rpath or -rpath-link)
  /usr/local/arm-cortex_a9-eabi-4.7-eglibc-2.18/bin/../lib/gcc/arm-cortex_a9-linux-gnueabi/4.7.4/../../../../arm-cortex_a9-linux-gnueabi/bin/ld.bfd: warning: libnxvmem.so, needed by ../../lib/libopencv_highgui.so, not found (try using -rpath or -rpath-link)
  /usr/local/arm-cortex_a9-eabi-4.7-eglibc-2.18/bin/../lib/gcc/arm-cortex_a9-linux-gnueabi/4.7.4/../../../../arm-cortex_a9-linux-gnueabi/bin/ld.bfd: warning: libnxvpu.so, needed by ../../lib/libopencv_highgui.so, not found (try using -rpath or -rpath-link)
  ../../lib/libopencv_highgui.so: undefined reference to `v4l2_set_ctrl'
  ../../lib/libopencv_highgui.so: undefined reference to `v4l2_streamoff'
  ../../lib/libopencv_highgui.so: undefined reference to `CvCaptureCAM_VPU::retrieveFrame(int)'
  ../../lib/libopencv_highgui.so: undefined reference to `v4l2_set_crop'
  ../../lib/libopencv_highgui.so: undefined reference to `v4l2_set_format'
  ../../lib/libopencv_highgui.so: undefined reference to `v4l2_init'
  ../../lib/libopencv_highgui.so: undefined reference to `v4l2_set_crop_with_pad'
  ../../lib/libopencv_highgui.so: undefined reference to `v4l2_dqbuf'
  ../../lib/libopencv_highgui.so: undefined reference to `v4l2_exit'
  ../../lib/libopencv_highgui.so: undefined reference to `v4l2_reqbuf'
  ../../lib/libopencv_highgui.so: undefined reference to `v4l2_streamon'
  ../../lib/libopencv_highgui.so: undefined reference to `v4l2_qbuf'
  collect2: error: ld returned 1 exit status
  make[2]: *** [bin/opencv_perf_core] Error 1
  make[1]: *** [modules/core/CMakeFiles/opencv_perf_core.dir/all] Error 2
  make: *** [all] Error 2
  
  
  以上就是编译过程出现的错误，真是没办法了，不知道大家有什么建议没有（能够识别出我的摄像头并采集视频）
  
  
  

mikehu

又是无望的等待，还是这种操作根本就没人做过呢？

ldzz123

楼主你的情况解决了吗？

blueshark

这个错误就是OPENCV的库路径设置不对，原始库中支持USB摄像头，看编译选项宏。