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• FFMpeg for android [on hold]

  2 mai 2016, par Mike Albren

  Android media player only supports video playback from file or RTSP , but I need to stream RTP video the comes from UDP network socket so I am thinking to use FFMpeg, but I do not have have any knowledge how to use FFMpeg API,and I do not know if it is an easy task or not , I know FFMpeg is written in c and I know how to compile it and how to use NDK , but I need more information how to use FFMpeg to stream from socket, any one knows good tutorial,example code or open source project do the same job , how should I start ? or if there is another easy way to do the same task on android ?

• Android NDK : How to link FFMPEG libraries with CPP files ?

  2 décembre 2011, par Alex

  I'm building with Android NDK as follows :

  I have a CPP file in which I have something like

  extern "C"
  
  #include
  

  CMyClass::MyFunc()
  av_register_all() ;
  

  I link it with static FFMPEG libraries which I've built separately using the procedure described elsewhere.

  It gives me undefined reference av_register_all() error.

  When in the same file I have, instead, something like

  extern "C" void func() {
  
     av_register_all();
  
  }

  everything links and works fine.

  So, how do I link FFMPEG libs with cpp files in Android ?

• 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