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• Error installing Opencv (any version) : relocation R_X86_64_32 against `.rodata.str1.1' can not be used when making a shared object

  11 juin 2015, par Anshul

  I’m running Ubuntu 14.04 and want to install a library iai_kinect2 and it requires OpenCV to be installed. I’ve been trying to install Opencv for a day and a half now but no matter what version I try to install (after installing ffmeg correctly, after adding the —enable-pic option to the ./configure), it still gives me the same error as given above. Although I’m fairly new to Linux, I understood from what I read that this is a 32 vs 64 bit issue (i.e. some dependencies are not working correctly for the 64 bit Ubuntu that I have.

  Most forums I saw said the problem was with ffmpeg not installing correctly. I followed the instructions here and although I did not find gstreamer1.0-ffmpeg, I read that gstreamer-1.0-libav works and I installed that successfully. Also, after running cmake for opencv, it says it found ffmeg. So I don’t know how to go further to solve this issue. Any suggestions would be welcome. Thanks.

  The error I receive while running make for opencv is :

      .
  
      .
  
      [ 38%] Building CXX object modules/videoio/CMakeFiles/opencv_videoio.dir/src/cap_ffmpeg.cpp.o
  
      Linking CXX shared library ../../lib/libopencv_videoio.so
  
      /usr/bin/ld: /usr/local/lib/libavcodec.a(avpacket.o): relocation R_X86_64_32 against `.rodata.str1.1' can not be used when making a shared object; recompile with -fPIC
  
      /usr/local/lib/libavcodec.a: error adding symbols: Bad value
  
      collect2: error: ld returned 1 exit status
  
      make[2]: *** [lib/libopencv_videoio.so.3.0.0] Error 1
  
      make[1]: *** [modules/videoio/CMakeFiles/opencv_videoio.dir/all] Error 2
  
      make[1]: *** Waiting for unfinished jobs....
  
      [ 38%] Building CXX object modules/shape/CMakeFiles/opencv_shape.dir/src/haus_dis.cpp.o
  
      [ 38%] Building CXX object modules/shape/CMakeFiles/opencv_shape.dir/src/aff_trans.cpp.o
  
      Linking CXX shared library ../../lib/libopencv_shape.so
  
      [ 38%] Built target opencv_shape
  
      make: *** [all] Error 2

• Compiling ffmpeg for chromium on Windows

  7 janvier 2019, par ykhandel

  I am following the instructions here to generate the gn files for Chromium. I have installed the cygwin base package along with diffutils, nasm, make and python.

  Also, I have copied chromium/scripts/cygwin-wrapper to /usr/local/bin

  1. Started C :\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\Common7\Tools\VsDevCmd.bat

  2. Started C :\cygwin\cygwin.bat

  3. cd to third_party\chromium\scripts

  4. python build_ffmpeg win ia32

  I am getting some warnings plus this :

  Could not create temporary library.
  make : *** [/cygdrive/d/src/chromium/src/third_party/ffmpeg/ffbuild/library.mak:102 : libavutil/avutil-56.dll] Error 1

  make : *** Waiting for unfinished jobs....

  Could not create temporary library.

  Could not create temporary library.

  make : *** [/cygdrive/d/src/chromium/src/third_party/ffmpeg/ffbuild/library.mak:102 : libavcodec/avcodec-58.dll] Error 1

  make : *** [/cygdrive/d/src/chromium/src/third_party/ffmpeg/ffbuild/library.mak:102 : libavformat/avformat-58.dll] Error 1

  Traceback (most recent call last) :

  File "build_ffmpeg.py", line 900, in

  sys.exit(main(sys.argv[1 :]))

  File "build_ffmpeg.py", line 502, in main

  options=options)

  File "build_ffmpeg.py", line 876, in ConfigureAndBuild

  configure_args)

  File "build_ffmpeg.py", line 870, in do_build_ffmpeg

  options.config_only, branding, configure_flags)

  File "build_ffmpeg.py", line 408, in BuildFFmpeg

  [’make’, ’-j%d’ % parallel_jobs] + libraries, cwd=config_dir)

  File "build_ffmpeg.py", line 106, in PrintAndCheckCall

  subprocess.check_call(argv, *args, **kwargs)

  File "/usr/lib/python2.7/subprocess.py", line 186, in check_call

  raise CalledProcessError(retcode, cmd)

  subprocess.CalledProcessError : Command ’[’make’, ’-j8’, ’libavcodec/avcodec-
  58.dll’, ’libavformat/avformat-58.dll’, ’libavutil/avutil-56.dll’]’ returned non-zero exit status 2

• ffmpeg armv7s compile segmentation fault

  13 mai 2015, par Sergey92zp

  I use https://github.com/kewlbear/FFmpeg-iOS-build-script to compile ffmpeg,
  but when i try to compile, for armv7s architecture i have next error

  all other archs compile fine

  clang : error : unable to execute command : Segmentation fault : 11 clang :
  error : clang frontend command failed due to signal (use -v to see
  invocation) Apple LLVM version 6.1.0 (clang-602.0.49) (based on LLVM
  3.6.0svn) Target : arm-apple-darwin14.3.0 Thread model : posix clang : note : diagnostic msg : PLEASE submit a bug report to
  http://developer.apple.com/bugreporter/ and include the crash
  backtrace, preprocessed source, and associated run script. clang :
  note : diagnostic msg :

  ---

  PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT : Preprocessed
  source(s) and associated run script(s) are located at : clang : note :
  diagnostic msg :
  /var/folders/zk/wj2cn08s26x64nlzk3_kjnv80000gn/T/vp8-c6ec27.c clang :
  note : diagnostic msg :
  /var/folders/zk/wj2cn08s26x64nlzk3_kjnv80000gn/T/vp8-c6ec27.sh clang :
  note : diagnostic msg :

  ******************** make : * [libavcodec/vp8.o] Error 254 make : * Waiting for unfinished jobs.... CC libavcodec/wmv2enc.o

  Couple months ago all compiled without any errors.
  Tried on couple versions of ffmpeg

  Here is Clang -v

  Apple LLVM version 6.1.0 (clang-602.0.49) (based on LLVM 3.6.0svn)
  Target : x86_64-apple-darwin14.3.0 Thread model : posix

  and xcode version is Version 6.3.1 (6D1002)