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• Error installing ffmpeg on Ubuntu 8.04 JeOS with Speex

  15 novembre 2011, par tubbo

  I'm having an issue installing ffmpeg with Speex support on Ubuntu 8.04 JeOS. After some wandering around in dependency hell I managed to secure the proper libspeex and ffmpeg versions, and it ./configured properly, but when I try to run make && make install, it fails with the following error :

  ffmpeg.c: In function ‘opt_recording_timestamp’:
  
  ffmpeg.c:3080: warning: dereferencing type-punned pointer will break strict-aliasing rules
  
  ffmpeg.c: In function ‘opt_input_file’:
  
  ffmpeg.c:3312: warning: ‘loop_input’ is deprecated (declared at libavformat/avformat.h:919)
  
  ffmpeg.c: In function ‘opt_output_file’:
  
  ffmpeg.c:4086: warning: ‘loop_output’ is deprecated (declared at libavformat/avformat.h:895)
  
  ffmpeg.c: In function ‘opt_map’:
  
  ffmpeg.c:2873: warning: ‘sync_stream_idx’ may be used uninitialized in this function
  
  CC  cmdutils.o
  
  LD  ffmpeg_g
  
  libavcodec/libavcodec.a(libspeexdec.o): In function `libspeex_decode_close':
  
  /home/tom/src/ffmpeg/libavcodec/libspeexdec.c:144: undefined reference to `speex_header_free'
  
  libavcodec/libavcodec.a(libspeexenc.o): In function `encode_init':
  
  /home/tom/src/ffmpeg/libavcodec/libspeexenc.c:224: undefined reference to `speex_header_free'
  
  /home/tom/src/ffmpeg/libavcodec/libspeexenc.c:215: undefined reference to `speex_header_free'
  
  collect2: ld returned 1 exit status
  
  make: *** [ffmpeg_g] Error 1

  I'm a complete noob to ffmpeg and speex, except for using the codec on Ventrilo back in the day. Can someone shed some light as to why this is happening ?

• Error when run the command ./build.sh in FFmpeg decoder in Android [closed]

  7 novembre 2011, par fargath

  Possible Duplicate :
  Android-NDK building using the Bambuser source
  Error while compile ffmpeg on cygwin for android

  I have try to implement the ffmpeg decoding library in my android project.Dowload FFmpeg.I got the ffmpeg library from the bambuser client version and unpack that into the project jni folder.Then i run the extract command(./extract.sh) in cygwin compiler tool(its becoz am using windows os) after that am trying to build ffmpeg library using the command ./build.sh

  I have googled a lot but i cant make it work. Please help me out from this.

  NDK version : NDKr5b
  Cygwin tool version : 1.7

  my build.sh file is

  ***********Command starts here**********
  
  
  
   #!/bin/bash
  
  if [ "$NDK" = "" ]; then
  
      echo NDK variable not set, assuming ${HOME}/android-ndk
  
      export NDK=${HOME}/android-ndk
  
  fi
  
  
  
  SYSROOT=$NDK/platforms/android-8/arch-arm
  
   # Expand the prebuilt/* path into the correct one
  
  TOOLCHAIN=`echo $NDK/toolchains/arm-linux-androideabi-4.4.3/prebuilt/windows`
  
  export PATH=$TOOLCHAIN/bin:$PATH
  
  
  
  rm -rf build/ffmpeg
  
  mkdir -p build/ffmpeg
  
  cd ffmpeg
  
  
  
   # Don't build any neon version for now
  
  for version in armv5te armv7a; do
  
  
  
  DEST=../build/ffmpeg
  
  FLAGS="--target-os=linux --cross-prefix=$TOOLCHAIN/bin/arm-linux-androideabi- --arch=arm  --cc=$TOOLCHAIN/bin/arm-linux-androideabi-gcc"
  
  FLAGS="$FLAGS --sysroot=$SYSROOT"
  
  FLAGS="$FLAGS --soname-prefix=/data/data/org.sample.ffmpegsample/lib/"
  
  FLAGS="$FLAGS --enable-shared --disable-symver --enable-cross-compile"
  
  FLAGS="$FLAGS --enable-small --enable-version3 --optimization-flags=-O2"
  
  FLAGS="$FLAGS --nm=$TOOLCHAIN/bin/arm-linux-androideabi-nm"
  
  FLAGS="$FLAGS --ar=$TOOLCHAIN/bin/arm-linux-androideabi-ar"
  
  FLAGS="$FLAGS --enable-gpl --enable-nonfree --disable-stripping"
  
  FLAGS="$FLAGS --enable-encoder=mpeg2video --enable-encoder=nellymoser"
  
  $ADDITIONAL_CONFIGURE_FLAG
  
  
  
  case "$version" in
  
      neon)
  
          EXTRA_CFLAGS="-march=armv7-a -mfloat-abi=softfp -mfpu=neon"
  
          EXTRA_LDFLAGS="-Wl,--fix-cortex-a8"
  
          # Runtime choosing neon vs non-neon requires
  
          # renamed files
  
          ABI="armeabi-v7a"
  
          ;;
  
      armv7a)
  
          EXTRA_CFLAGS="-march=armv7-a -mfloat-abi=softfp"
  
          EXTRA_LDFLAGS=""
  
          ABI="armeabi-v7a"
  
          ;;
  
      *)
  
          EXTRA_CFLAGS=""
  
          EXTRA_LDFLAGS=""
  
          ABI="armeabi"
  
          ;;
  
  esac
  
  DEST="$DEST/$ABI"
  
  FLAGS="$FLAGS --prefix=$DEST"
  
  
  
  mkdir -p $DEST
  
  echo $FLAGS --extra-cflags="$EXTRA_CFLAGS" --extra-ldflags="$EXTRA_LDFLAGS" > $DEST/info.txt
  
  ./configure $FLAGS --extra-cflags="$EXTRA_CFLAGS" --extra-ldflags="$EXTRA_LDFLAGS" | tee $DEST/configuration.txt
  
  [ $PIPESTATUS == 0 ] || exit 1
  
  make clean
  
  make -j4 || exit 1
  
  make install || exit 1
  
  done
  
  
  
  ***********Command ends here**********

  Here I attach my cygwin command tool screenshot,
  Thanks in advance.

  http://www.mediafire.com/?xc3511m9miyknia

• duplicate symbol _ff_inverse in MediaLibiOS+FFmpeg-09/libavcodec.a(inverse.o) and MediaLibiOS+FFmpeg-09/libavutil.a(inverse.o)

  29 octobre 2012, par Taha Selim Bebek

  If I create a new project in xcode and add MediaLibiOS to the project it builds without any errors, but if I add it to my existing project there is an error of duplicate symbols in MediaLib iOS. Error goes like this :

  duplicate symbol _ff_inverse in :
  /Users/tbebek/Desktop/4.0_RC/MediaLibiOS+FFmpeg-09/libavcodec.a(inverse.o)
  /Users/tbebek/Desktop/4.0_RC/MediaLibiOS+FFmpeg-09/libavutil.a(inverse.o)
  ld : 1 duplicate symbol for architecture i386
  clang : error : linker command failed with exit code 1 (use -v to see invocation)

  Any ideas ? Thanks.