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• Unable to compile ffmpeg in OSX

  19 septembre 2015, par mallendeo

  git clone https://github.com/FFmpeg/FFmpeg --depth=1
  
  cd FFmpeg
  
  ./configure --disable-everything --enable-demuxer=aac --enable-demuxer=mpegvideo --enable-demuxer=h264 --cc=clang --disable-doc
  
  make

  When I build it, it keeps throwing this error :

  CC  ffmpeg.o
  
  CC  cmdutils.o
  
  CC  ffmpeg_opt.o
  
  CC  ffmpeg_filter.o
  
  CC  ffmpeg_videotoolbox.o
  
  LD  ffmpeg_g
  
  Undefined symbols for architecture x86_64:
  
    "_av_vda_default_init2", referenced from:
  
        _videotoolbox_init in ffmpeg_videotoolbox.o
  
  ld: symbol(s) not found for architecture x86_64
  
  clang: error: linker command failed with exit code 1 (use -v to see invocation)
  
  make: *** [ffmpeg_g] Error 1

  I couldn’t find any solution to this. Some bug reports suggest using --cc=clang but did nothing.

  Thanks

• Unable to compile ffmpeg in OSX [Solved]

  19 septembre 2015, par mallendeo

  git clone https://github.com/FFmpeg/FFmpeg --depth=1
  
  cd FFmpeg
  
  ./configure --disable-everything --enable-demuxer=aac --enable-demuxer=mpegvideo --enable-demuxer=h264 --cc=clang --disable-doc
  
  make

  When I build it, it keeps throwing this error :

  CC  ffmpeg.o
  
  CC  cmdutils.o
  
  CC  ffmpeg_opt.o
  
  CC  ffmpeg_filter.o
  
  CC  ffmpeg_videotoolbox.o
  
  LD  ffmpeg_g
  
  Undefined symbols for architecture x86_64:
  
    "_av_vda_default_init2", referenced from:
  
        _videotoolbox_init in ffmpeg_videotoolbox.o
  
  ld: symbol(s) not found for architecture x86_64
  
  clang: error: linker command failed with exit code 1 (use -v to see invocation)
  
  make: *** [ffmpeg_g] Error 1

  I couldn’t find any solution to this. Some bug reports suggest using --cc=clang but did nothing.

  Thanks

  Update : add --disable-yasm

• Compile FFMPEG in iOS with bitcode mode

  16 février 2016, par Mr.G

  I compiled FFMPEG libs which supports for iOS 7 and 8 but since recent release with iOS 9 there is a new feature has issued which called bitcode mode , as a default setting , this setting has set to NO .

  But if i set this as yes , following error will execute ,

  libavdevice.a(avfoundation.o)’ does not contain bitcode. You must rebuild it with bitcode enabled (Xcode setting ENABLE_BITCODE), obtain an updated library from the vendor, or disable bitcode for this target. for architecture arm64

  Is there any way to compile FFMPEG which supports FFMpeg in bitcode enabled mode

  here is the build script i used

  #!/bin/sh
  
  
  
  # directories
  
  SOURCE="ffmpeg-2.6.2"
  
  FAT="FFmpeg-iOS"
  
  
  
  SCRATCH="scratch"
  
  # must be an absolute path
  
  THIN=`pwd`/"thin"
  
  
  
  # absolute path to x264 library
  
  #X264=`pwd`/fat-x264
  
  
  
  #FDK_AAC=`pwd`/fdk-aac/fdk-aac-ios
  
  
  
  CONFIGURE_FLAGS="--enable-cross-compile --disable-debug --disable-programs \
  
                   --disable-doc --enable-pic"
  
  
  
  if [ "$X264" ]
  
  then
  
      CONFIGURE_FLAGS="$CONFIGURE_FLAGS --enable-gpl --enable-libx264"
  
  fi
  
  
  
  if [ "$FDK_AAC" ]
  
  then
  
      CONFIGURE_FLAGS="$CONFIGURE_FLAGS --enable-libfdk-aac"
  
  fi
  
  
  
  # avresample
  
  #CONFIGURE_FLAGS="$CONFIGURE_FLAGS --enable-avresample"
  
  
  
  ARCHS="arm64 armv7 x86_64 i386"
  
  
  
  COMPILE="y"
  
  LIPO="y"
  
  
  
  DEPLOYMENT_TARGET="6.0"
  
  
  
  if [ "$*" ]
  
  then
  
      if [ "$*" = "lipo" ]
  
      then
  
          # skip compile
  
          COMPILE=
  
      else
  
          ARCHS="$*"
  
          if [ $# -eq 1 ]
  
          then
  
              # skip lipo
  
              LIPO=
  
          fi
  
      fi
  
  fi
  
  
  
  if [ "$COMPILE" ]
  
  then
  
      if [ ! `which yasm` ]
  
      then
  
          echo 'Yasm not found'
  
          if [ ! `which brew` ]
  
          then
  
              echo 'Homebrew not found. Trying to install...'
  
              ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)" \
  
                  || exit 1
  
          fi
  
          echo 'Trying to install Yasm...'
  
          brew install yasm || exit 1
  
      fi
  
      if [ ! `which gas-preprocessor.pl` ]
  
      then
  
          echo 'gas-preprocessor.pl not found. Trying to install...'
  
          (curl -L https://github.com/libav/gas-preprocessor/raw/master/gas-preprocessor.pl \
  
              -o /usr/local/bin/gas-preprocessor.pl \
  
              && chmod +x /usr/local/bin/gas-preprocessor.pl) \
  
              || exit 1
  
      fi
  
  
  
      if [ ! -r $SOURCE ]
  
      then
  
          echo 'FFmpeg source not found. Trying to download...'
  
          curl http://www.ffmpeg.org/releases/$SOURCE.tar.bz2 | tar xj \
  
              || exit 1
  
      fi
  
  
  
      CWD=`pwd`
  
      for ARCH in $ARCHS
  
      do
  
          echo "building $ARCH..."
  
          mkdir -p "$SCRATCH/$ARCH"
  
          cd "$SCRATCH/$ARCH"
  
  
  
          CFLAGS="-arch $ARCH"
  
          if [ "$ARCH" = "i386" -o "$ARCH" = "x86_64" ]
  
          then
  
              PLATFORM="iPhoneSimulator"
  
              CFLAGS="$CFLAGS -mios-simulator-version-min=$DEPLOYMENT_TARGET"
  
          else
  
              PLATFORM="iPhoneOS"
  
              CFLAGS="$CFLAGS -mios-version-min=$DEPLOYMENT_TARGET"
  
              if [ "$ARCH" = "arm64" ]
  
              then
  
                  EXPORT="GASPP_FIX_XCODE5=1"
  
              fi
  
          fi
  
  
  
          XCRUN_SDK=`echo $PLATFORM | tr '[:upper:]' '[:lower:]'`
  
          CC="xcrun -sdk $XCRUN_SDK clang"
  
          CXXFLAGS="$CFLAGS"
  
          LDFLAGS="$CFLAGS"
  
          if [ "$X264" ]
  
          then
  
              CFLAGS="$CFLAGS -I$X264/include"
  
              LDFLAGS="$LDFLAGS -L$X264/lib"
  
          fi
  
          if [ "$FDK_AAC" ]
  
          then
  
              CFLAGS="$CFLAGS -I$FDK_AAC/include"
  
              LDFLAGS="$LDFLAGS -L$FDK_AAC/lib"
  
          fi
  
  
  
          TMPDIR=${TMPDIR/%\/} $CWD/$SOURCE/configure \
  
              --target-os=darwin \
  
              --arch=$ARCH \
  
              --cc="$CC" \
  
              $CONFIGURE_FLAGS \
  
              --extra-cflags="$CFLAGS" \
  
              --extra-cxxflags="$CXXFLAGS" \
  
              --extra-ldflags="$LDFLAGS" \
  
              --prefix="$THIN/$ARCH" \
  
          || exit 1
  
  
  
          make -j3 install $EXPORT || exit 1
  
          cd $CWD
  
      done
  
  fi
  
  
  
  if [ "$LIPO" ]
  
  then
  
      echo "building fat binaries..."
  
      mkdir -p $FAT/lib
  
      set - $ARCHS
  
      CWD=`pwd`
  
      cd $THIN/$1/lib
  
      for LIB in *.a
  
      do
  
          cd $CWD
  
          echo lipo -create `find $THIN -name $LIB` -output $FAT/lib/$LIB 1>&2
  
          lipo -create `find $THIN -name $LIB` -output $FAT/lib/$LIB || exit 1
  
      done
  
  
  
      cd $CWD
  
      cp -rf $THIN/$1/include $FAT
  
  fi
  
  
  
  echo Done