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• Cutting whatsapp shared videos using FFMPEG

  2 août 2015, par Bhuvnesh Varma

  I am using hiteshsondhi88/ffmpeg-android library to time or cut videos.I have added below dependency.

  compile 'com.github.hiteshsondhi88.libffmpeg:FFmpegAndroid:0.2.5'

  I am using below command

  execFFmpegCommand("-i " + path + " -ss " + startMs / 1000 + " -to " + endMs / 1000 + " -strict -2 -async 1 " + dest.getAbsolutePath());

  to cut or trim videos.

  private void execFFmpegCommand(final String command) {
  
          try {
  
              ffmpeg.execute(command, new ExecuteBinaryResponseHandler() {
  
                  @Override
  
                  public void onFailure(String s) {
  
                      Log.e("Preview", "FAILED with output : " + s);
  
                  }
  
  
  
                  @Override
  
                  public void onSuccess(String s) {
  
                      Log.e("Preview", "SUCCESS with output : " + s);
  
                  }
  
  
  
                  @Override
  
                  public void onProgress(String s) {
  
                      Log.e("Preview", "Started command : ffmpeg " + command);
  
                      Log.e("Preview", "progress : " + s);
  
                  }
  
  
  
                  @Override
  
                  public void onStart() {
  
                      Log.e("Preview", "Started command : ffmpeg " + command);
  
  
  
                  }
  
  
  
                  @Override
  
                  public void onFinish() {
  
                      Log.e("Preview", "Finished command : ffmpeg " + command);
  
  
  
  
  
  
  
                  }
  
              });
  
          } catch (FFmpegCommandAlreadyRunningException e) {
  
              // do nothing for now
  
          }
  
      }

  Its working for most videos but for some videos its NOT working especially for videos that are shared from whatssapp.It gives below error..I am using Environment.getExternalStoragePublicDirectory( Environment.DIRECTORY_MOVIES ) for storage of videos.

  FAILED with output : WARNING: linker: files/ffmpeg has text relocations. This is wasting memory and prevents security hardening. Please fix.
  
      ffmpeg version n2.4.2 Copyright (c) 2000-2014 the FFmpeg developers
  
      built on Oct  7 2014 15:11:41 with gcc 4.8 (GCC)
  
      configuration: --target-os=linux --cross-prefix=/home/sb/Source-Code/ffmpeg-android/toolchain-android/bin/i686-linux-android- --arch=x86 --cpu=i686 --enable-runtime-cpudetect --sysroot=/home/sb/Source-Code/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/sb/Source-Code/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/sb/Source-Code/ffmpeg-android/build/x86 --extra-cflags='-I/home/sb/Source-Code/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all -march=i686' --extra-ldflags='-L/home/sb/Source-Code/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
  
      libavutil      54.  7.100 / 54.  7.100
  
      libavcodec     56.  1.100 / 56.  1.100
  
      libavformat    56.  4.101 / 56.  4.101
  
      libavdevice    56.  0.100 / 56.  0.100
  
      libavfilter     5.  1.100 /  5.  1.100
  
      libswscale      3.  0.100 /  3.  0.100
  
      libswresample   1.  1.100 /  1.  1.100
  
      libpostproc    53.  0.100 / 53.  0.100
  
      /storage/emulated/0/1: No such file or directory

• FFMPEG not able to trim some videos

  2 août 2015, par Bhuvnesh Varma

  I am using hiteshsondhi88/ffmpeg-android library to time or cut videos.It works fine for most videos but for some of the videos it fails and give below error especially for videos shared from whatsapp.I am using Environment.getExternalStoragePublicDirectory(
  Environment.DIRECTORY_MOVIES
  ) for storage of videos.Whats does this error means and why i am not able to crop/trim some videos ?

  FAILED with output : WARNING: linker: /data/data/com.peoplecloudlabs.apps.guggu/files/ffmpeg has text relocations. This is wasting memory and prevents security hardening. Please fix.
  
      ffmpeg version n2.4.2 Copyright (c) 2000-2014 the FFmpeg developers
  
      built on Oct  7 2014 15:11:41 with gcc 4.8 (GCC)
  
      configuration: --target-os=linux --cross-prefix=/home/sb/Source-Code/ffmpeg-android/toolchain-android/bin/i686-linux-android- --arch=x86 --cpu=i686 --enable-runtime-cpudetect --sysroot=/home/sb/Source-Code/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/sb/Source-Code/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/sb/Source-Code/ffmpeg-android/build/x86 --extra-cflags='-I/home/sb/Source-Code/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all -march=i686' --extra-ldflags='-L/home/sb/Source-Code/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
  
      libavutil      54.  7.100 / 54.  7.100
  
      libavcodec     56.  1.100 / 56.  1.100
  
      libavformat    56.  4.101 / 56.  4.101
  
      libavdevice    56.  0.100 / 56.  0.100
  
      libavfilter     5.  1.100 /  5.  1.100
  
      libswscale      3.  0.100 /  3.  0.100
  
      libswresample   1.  1.100 /  1.  1.100
  
      libpostproc    53.  0.100 / 53.  0.100
  
      /storage/emulated/0/1: No such file or directory

• How to compile ffmpeg to support hw codec ?

  23 juillet 2015, par Kame Li

  I modified the build_libstagefright.sh to compile ffmpeg-2.7.1, and I got following libraries. But I can not load them successfully.
  ./ffmpeg-2.7.1/libswresample/libswresample.so
  ./ffmpeg-2.7.1/libavfilter/libavfilter.so
  ./ffmpeg-2.7.1/libavcodec/libavcodec.so
  ./ffmpeg-2.7.1/libswscale/libswscale.so
  ./ffmpeg-2.7.1/libavformat/libavformat.so
  ./ffmpeg-2.7.1/libavutil/libavutil.so`

  Detail of build_libstagefright.sh is as bellow. Can anyone help to take a look what happen ? If you already compiled the libs to support hw codec, can you share them for me ? Thanks so much.
  -------------------------------------------------------------------------------
  # !/bin/bash

  #NDK=/home/ming/Tools/android-ndk-r9d
  
  NDK=/home/ming/Tools/android-ndk-r10e
  
  SYSROOT=$NDK/platforms/android-19/arch-arm/
  
  TOOLCHAIN=$NDK/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64
  
  
  
  if [ "$NDK" = "" ]; then
  
      echo NDK variable not set, assuming ${HOME}/android-ndk
  
      export NDK=${HOME}/android-ndk
  
  fi
  
  
  
  echo "Fetching Android system headers"
  
  git clone --depth=1 --branch gingerbread-release                             git://github.com/CyanogenMod/android_frameworks_base.git ../android-    source/frameworks/base
  
  git clone --depth=1 --branch gingerbread-release     git://github.com/CyanogenMod/android_system_core.git ../android-   source/system/core
  
  
  
  echo "Fetching Android libraries for linking"
  
  # Libraries from any froyo/gingerbread device/emulator should work
  
  # fine, since the symbols used should be available on most of them.
  
  if [ ! -d "../android-libs" ]; then
  
      if [ ! -f "../update-cm-7.0.3-N1-signed.zip" ]; then
  
          wget http://download.cyanogenmod.com/get/update-cm-7.0.3-N1-signed.zip -P../
  
      fi
  
      unzip ../update-cm-7.0.3-N1-signed.zip system/lib/* -d../
  
      mv ../system/lib ../android-libs
  
      rmdir ../system
  
  fi
  
  
  
  SYSROOT=$NDK/platforms/android-19/arch-arm
  
  # Expand the prebuilt/* path into the correct one
  
  #TOOLCHAIN=`echo $NDK/toolchains/arm-linux-androideabi-4.4.3/prebuilt/*-x86`
  
  export PATH=$TOOLCHAIN/bin:$PATH
  
  ANDROID_SOURCE=../android-source
  
  ANDROID_LIBS=../android-libs
  
  ABI="armeabi-v7a"
  
  ADDI_CFLAGS="-marm"
  
  
  
  rm -rf ../build/stagefright
  
  mkdir -p ../build/stagefright
  
  
  
  DEST=../build/stagefright
  
  # --cpu=armv7-a
  
  FLAGS="--target-os=linux --cross-prefix=arm-linux-androideabi- --arch=arm --                        enable-shared --disable-static --disable-doc --disable-ffserver --enable-cross-    compile --cpu=armv7-a"
  
  FLAGS="$FLAGS --sysroot=$SYSROOT"
  
  FLAGS="$FLAGS --disable-avdevice --disable-decoder=h264 --disable-    decoder=h264_vdpau --enable-libstagefright-h264"
  
  
  
  EXTRA_CFLAGS="-I$ANDROID_SOURCE/frameworks/base/include -    I$ANDROID_SOURCE/system/core/include"
  
  EXTRA_CFLAGS="$EXTRA_CFLAGS -    I$ANDROID_SOURCE/frameworks/base/media/libstagefright"
  
  EXTRA_CFLAGS="$EXTRA_CFLAGS -    I$ANDROID_SOURCE/frameworks/base/include/media/stagefright/openmax"
  
  #EXTRA_CFLAGS="$EXTRA_CFLAGS -I$NDK/sources/cxx-stl/gnu-libstdc++/include -    I$NDK/sources/cxx-stl/gnu-libstdc++/libs/$ABI/include"
  
  EXTRA_CFLAGS="$EXTRA_CFLAGS -I$NDK/sources/cxx-stl/gnu-libstdc++/4.8/include -I$NDK/sources/cxx-stl/gnu-libstdc++/4.8/libs/$ABI/include"
  
  
  
  #-march=armv7-a -mfloat-abi=softfp -mfpu=neon

  EXTRA_CFLAGS="$EXTRA_CFLAGS -march=armv7-a -mfloat-abi=softfp -mfpu=neon"

  EXTRA_CFLAGS="$EXTRA_CFLAGS -Os -fpic $ADDI_CFLAGS"
  
  
  
  #EXTRA_LDFLAGS="-Wl,--fix-cortex-a8 -L$ANDROID_LIBS -Wl,-rpath-    link,$ANDROID_LIBS -L$NDK/sources/cxx-stl/gnu-libstdc++/libs/$ABI"
  
  EXTRA_LDFLAGS="-Wl,--fix-cortex-a8 -L$ANDROID_LIBS -Wl,-rpath-    link,$ANDROID_LIBS -L$NDK/sources/cxx-stl/gnu-libstdc++/4.8/libs/$ABI  -    lstagefright -lstdc++ -lutils -lbinder -lgnustl_static -lgnustl_shared     $ADDI_LDFLAGS"
  
  
  
  EXTRA_CXXFLAGS="-Wno-multichar -fno-exceptions -fno-rtti"
  
  DEST="$DEST/$ABI"
  
  FLAGS="$FLAGS --prefix=$DEST"
  
  
  
  mkdir -p $DEST
  
  
  
  echo $FLAGS --extra-cflags="$EXTRA_CFLAGS" --extra-ldflags="$EXTRA_LDFLAGS" --extra-cxxflags="$EXTRA_CXXFLAGS" > $DEST/info.txt
  
  ./configure $FLAGS --extra-cflags="$EXTRA_CFLAGS" --extra-    ldflags="$EXTRA_LDFLAGS" --extra-cxxflags="$EXTRA_CXXFLAGS"         $ADDITIONAL_CONFIGURE_FLAG | tee $DEST/configuration.txt
  
  [ $PIPESTATUS == 0 ] || exit 1
  
  make clean
  
  echo "make -j4"
  
  make -j4 || exit 1`
  
  -------------------------------------------------------------------------------