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• Compliing OpenCV with FFMPEG failing

  20 mai 2016, par moorej

  I’m trying to install OpenCV 3.1.0 on Ubuntu 14.04 with ffmpeg and python 2.7 support. I’m able to compile with :

  cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local 
  
  -D  INSTALL_C_EXAMPLES=OFF -D INSTALL_PYTHON_EXAMPLES=ON 
  
  -D OPENCV_EXTRA_MODULES_PATH=~/opencv_contrib-3.1.0/modules 
  
  -D WITH_FFMPEG=OFF -D BUILD_EXAMPLES=ON ..

  But -D WITH_FFMPEG=ON fails with the error :

  /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

  I’m compiling ffmpeg as well and I’ve looked at a number of posts relating to the problem and attempted to add —enable-pic and —enable-shared along with some other options but I have to admit I’m a bit stupid when it comes to anything compilation related. My process for compiling ffmpeg is below. Please help me with my mess. Thanks !

  mkdir ~/ffmpeg_sources
  
  
  
  #libx264
  
  cd ~/ffmpeg_sources
  
  wget http://download.videolan.org/pub/x264/snapshots/last_x264.tar.bz2
  
  tar xjvf last_x264.tar.bz2
  
  cd x264-snapshot*
  
  PATH="$HOME/bin:$PATH" ./configure --prefix="$HOME/ffmpeg_build" --bindir="$HOME/bin" --enable-static --enable-shared --enable-pic
  
  PATH="$HOME/bin:$PATH" make -j4
  
  make install
  
  make distclean
  
  
  
  #libfdk-aac
  
  cd ~/ffmpeg_sources
  
  wget -O fdk-aac.tar.gz https://github.com/mstorsjo/fdk-aac/tarball/master
  
  tar xzvf fdk-aac.tar.gz
  
  cd mstorsjo-fdk-aac*
  
  autoreconf -fiv
  
  ./configure --prefix="$HOME/ffmpeg_build" --enable-shared --enable-pic
  
  make -j4
  
  make install
  
  make distclean
  
  
  
  #libmp3lame
  
  sudo apt-get install nasm
  
  cd ~/ffmpeg_sources
  
  wget http://downloads.sourceforge.net/project/lame/lame/3.99/lame-3.99.5.tar.gz
  
  tar xzvf lame-3.99.5.tar.gz
  
  cd lame-3.99.5
  
  ./configure --prefix="$HOME/ffmpeg_build" --enable-nasm --enable-shared --enable-pic
  
  make -j4
  
  make install
  
  make distclean
  
  
  
  #libopus
  
  cd ~/ffmpeg_sources
  
  wget http://downloads.xiph.org/releases/opus/opus-1.1.tar.gz
  
  tar xzvf opus-1.1.tar.gz
  
  cd opus-1.1
  
  ./configure --prefix="$HOME/ffmpeg_build" --enable-shared --enable-pic
  
  make -j4
  
  make install
  
  make clean
  
  
  
  #libvpx
  
  cd ~/ffmpeg_sources
  
  wget http://storage.googleapis.com/downloads.webmproject.org/releases/webm/libvpx-1.5.0.tar.bz2
  
  tar xjvf libvpx-1.5.0.tar.bz2
  
  cd libvpx-1.5.0
  
  PATH="$HOME/bin:$PATH" ./configure --prefix="$HOME/ffmpeg_build" --disable-examples --disable-unit-tests --enable-shared --enable-pic
  
  PATH="$HOME/bin:$PATH" make -j4
  
  make install
  
  make clean
  
  
  
  #ffmpeg
  
  cd ~/ffmpeg_sources
  
  wget http://ffmpeg.org/releases/ffmpeg-snapshot.tar.bz2
  
  tar xjvf ffmpeg-snapshot.tar.bz2
  
  cd ffmpeg
  
  PATH="$HOME/bin:$PATH" PKG_CONFIG_PATH="$HOME/ffmpeg_build/lib/pkgconfig" ./configure 
  
    --prefix="$HOME/ffmpeg_build"
  
    --pkg-config-flags="--static"
  
    --extra-cflags="-I$HOME/ffmpeg_build/include"
  
    --extra-cflags="-fPIC -m64 -I$HOME/ffmpeg_build/include"
  
    --extra-ldflags="-L$HOME/ffmpeg_build/lib"
  
    --bindir="$HOME/bin"
  
    --enable-pic 
  
    --enable-shared 
  
    --enable-gpl 
  
    --enable-libass 
  
    --enable-libfdk-aac 
  
    --enable-libfreetype 
  
    --enable-libmp3lame 
  
    --enable-libopus 
  
    --enable-libtheora 
  
    --enable-libvorbis 
  
    --enable-libvpx 
  
    --enable-libx264 
  
    --enable-nonfree
  
  PATH="$HOME/bin:$PATH" make -j4
  
  make install
  
  make distclean
  
  hash -r

• avcodec/Makefile : Fix intrax8 objects

  5 mai 2024, par Andreas Rheinhardt

  avcodec/Makefile : Fix intrax8 objects
  Forgotten in d1d30edf42da29fe4ab33c529112381cfea0a254.
  
  This fixes standalone compilation of the VC-1 based
  
  decoders when using shared builds (for static builds,
  
  nothing pulls in msmpeg4data.o, yet for shared builds
  
  the default behaviour of linkers is different, leading
  
  to undefined references because msmpeg4data.o relies
  
  on stuff from mpeg4video.o).
  Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
  

  • [DH] libavcodec/Makefile

• FFMPEG x265.so.79 lib

  4 mai 2017, par Teemo

  Trying to make some pictured from video with ffmpeg with this command :

  ffmpeg -i input.mp4 -ss 01:23:45 -vframes 1 output.jpg

  but constantly getting this error :

  ffmpeg: error while loading shared libraries: libx265.so.79: cannot open shared object file: No such file or directory

  when i execute :

  ldd $(which ffmpeg) 

  i get this output :

  linux-vdso.so.1 =>  (0x00007fff8417f000)
  
  libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f74c7130000)
  
  libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f74c6e27000)
  
  libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f74c6c09000)
  
  libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f74c6840000)
  
  /lib64/ld-linux-x86-64.so.2 (0x0000558ae35d3000)

  After wasting multiple hours and trying to install modules and libraries to get through dependency hell still no progress, always getting that error.

  Using Ubuntu 16.04.

  I am desperate, so any help would be appreciated