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• 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 does one loop a video using ffmpeg on android ?

  15 juillet 2015, par Magicomiralles

  I’m using hiteshsondhi88’s "FFmpeg Android Java" library and it works fine for scaling, trans-coding, and overlaying. However, when I try to loop a video I just get the same un-looped video on my output.

  My code :

  String internalPath = getFilesDir().getPath(); //get internal directory
  
  String command = "-y -f concat -i "+internalPath+"/myList.txt -c copy "+internalPath+"/final.mp4";
  
  ffmpeg.execute(command, ffmpegResponseHandler);

  The text in "myList.txt" is generated programmatically but it looks like this :

  file 'final_unlooped.mp4' file 'final_unlooped.mp4' file 'final_unlooped.mp4' file 'final_unlooped.mp4' file 'final_unlooped.mp4'

  Finally, the log :

  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
  
  Input #0, concat, from '/data/data/com.testApp/files/myList.txt':
  
  Duration: N/A, start: 0.000000, bitrate: 744 kb/s
  
  Stream #0:0: Video: h264 (High) (avc1 / 0x31637661), yuv420p, 640x640, 744 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc
  
  Output #0, mp4, to '/data/data/com.testApp/files/final.mp4':
  
  Metadata:
  
  encoder         : Lavf56.4.101
  
  Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 640x640, q=2-31, 744 kb/s, 25 fps, 12800 tbn, 12800 tbc
  
  Stream mapping:
  
  Stream #0:0 -> #0:0 (copy)
  
  Press [q] to stop, [?] for help
  
  frame=  115 fps=0.0 q=-1.0 Lsize=     420kB time=00:00:04.48 bitrate= 768.1kbits/s
  
  video:418kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.509634%

  The OnSuccess() method in the response handler launches indicating that the execution was successful but the output is still unlooped.

  This command works fine on Windows but for some reason it wont work on Android. any ideas of what it could be, or what am I doing wrong ?

• compile FFMpeg for Android (Ubuntu14) - cannot locate symbol

  11 mai 2015, par unichiduci

  I’m trying to compile FFMpeg for Android and I have troubles running the APK on Android 4 (on Android 5 I don’t get this shitty unsatisfied link error) :

  05-09 15:16:18.880  22160-22304/com.gpac.Osmo4 I/LibrariesLoader﹕ Loading library avcodec...
  
  05-09 15:16:18.910  22160-22304/com.gpac.Osmo4 E/dalvikvm﹕ dlopen("/data/app-lib/com.gpac.Osmo4-1/libavcodec.so") failed: Cannot load library: soinfo_relocate(linker.cpp:975): cannot locate symbol "log2f" referenced by "libavcodec.so"...
  
  05-09 15:16:18.920  22160-22304/com.gpac.Osmo4 E/LibrariesLoader﹕ Failed to load library : avcodec due to link error Cannot load library: soinfo_relocate(linker.cpp:975): cannot locate symbol "log2f" referenced by "libavcodec.so"...
  
      java.lang.UnsatisfiedLinkError: Cannot load library: soinfo_relocate(linker.cpp:975): cannot locate symbol "log2f" referenced by "libavcodec.so"...

  I’m using NDK 10d, toolchain 4.9 but I was trying with NDK 8 and 9 also and I was getting the same result.
  The only difference when I compile with older NDK versions is that I get a warning message :

  incompatible declaration of built-in function log2f

  I checked libm.so (where log2f should be) which is on the target device and of course there is no log2f function defined there but replacing the library by hand probably would crash some other stuff + I need to root the phone.

  I know this is a linker issue and it should not be that hard to fix but I ran out of ideas.

  EDIT :
  I’m trying to compile ffmpeg 2.4.3
  The script that I’m using to configure :

  #!/bin/bash
  
  
  
  if [ "$NDK" = "" ]; then
  
      echo NDK variable not set, assuming ${HOME}/android-ndk
  
      export NDK=${HOME}/android-ndk
  
  fi
  
  
  
  echo "Compiling with NDK located at: $NDK"
  
  
  
  ROOT_DIR=`cd ..; pwd`
  
  CUR_DIR=`pwd`
  
  
  
  echo "Fetching Android system headers"
  
  if [ ! -d "$ROOT_DIR/android-source/frameworks/base" ]; then
  
      git clone --depth=1 --branch cm-11.0 https://github.com/CyanogenMod/android_frameworks_base.git "$ROOT_DIR/android-source/frameworks/base"
  
  fi
  
  if [ ! -d "$ROOT_DIR/android-source/system/core" ]; then
  
      git clone --depth=1 --branch cm-11.0 https://github.com/CyanogenMod/android_system_core.git "$ROOT_DIR/android-source/system/core"
  
  fi
  
  if [ ! -d "$ROOT_DIR/android-source/frameworks/av" ]; then
  
      git clone --depth=1 --branch cm-11.0 https://github.com/CyanogenMod/android_frameworks_av "$ROOT_DIR/android-source/frameworks/av"
  
  fi
  
  if [ ! -d "$ROOT_DIR/android-source/hardware/libhardware" ]; then
  
      git clone --depth=1 --branch cm-11.0 https://github.com/CyanogenMod/android_hardware_libhardware.git "$ROOT_DIR/android-source/hardware/libhardware"
  
  fi
  
  if [ ! -d "$ROOT_DIR/android-source/frameworks/native" ]; then
  
      git clone --depth=1 --branch cm-11.0 https://github.com/CyanogenMod/android_frameworks_native.git "$ROOT_DIR/android-source/frameworks/native"
  
  fi
  
  
  
  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 "$ROOT_DIR/android-libs" ]; then
  
      wget http://download.cyanogenmod.org/get/jenkins/65493/cm-10.2.1.3-serranoltexx.zip -P../
  
      unzip ../cm-10.2.1.3-serranoltexx.zip system/lib/* -d../
  
      mv ../system/lib "$ROOT_DIR/android-libs"
  
      rmdir ../system
  
      rm ../cm-10.2.1.3-serranoltexx.zip
  
  fi
  
  
  
  ANDROID_SOURCE="$ROOT_DIR/android-source"
  
  echo "ANDROID_SOURCE: $ANDROID_SOURCE"
  
  ANDROID_LIBS="$ROOT_DIR/android-libs"
  
  OBJS="$ROOT_DIR/objs"
  
  if [ "$DEST" = "" ]; then
  
      rm -rf $ROOT_DIR/build/stagefright
  
      mkdir -p $ROOT_DIR/build/stagefright
  
      DEST=$ROOT_DIR/build/stagefright
  
  fi
  
  
  
  #for ABI in "armeabi-v7a" "armeabi" "x86"; do
  
  for ABI in "armeabi-v7a" "armeabi"; do
  
      if [ "$ABI" = "x86" ]; then
  
          ARCH="x86"
  
          TOOLCHAIN=`echo $NDK/toolchains/x86-4.9/prebuilt/*-x86*`
  
      else
  
          ARCH="arm"
  
          TOOLCHAIN=`echo $NDK/toolchains/arm-linux-androideabi-4.9/prebuilt/*-x86*`
  
      fi 
  
      SYSROOT=$NDK/platforms/android-18/arch-$ARCH
  
      # Expand the prebuilt/* path into the correct one
  
      export PATH=$TOOLCHAIN/bin:$PATH
  
  
  
      FLAGS="--target-os=linux --arch=$ARCH"
  
      FLAGS="$FLAGS --sysroot=$SYSROOT"
  
      FLAGS="$FLAGS --enable-shared --disable-doc --disable-ffplay --disable-ffprobe --disable-ffserver --disable-symver"
  
      if [ "$ARCH" = "arm" ]; then
  
          FLAGS="$FLAGS --cross-prefix=$TOOLCHAIN/bin/arm-linux-androideabi- --cpu=armv7-a --enable-libstagefright-h264"
  
          #FLAGS="$FLAGS --cross-prefix=$TOOLCHAIN/bin/arm-linux-androideabi- --cpu=armv7-a"
  
      else
  
          FLAGS="$FLAGS --cross-prefix=$TOOLCHAIN/bin/i686-linux-android- --disable-asm"
  
      fi
  
  
  
      EXTRA_CFLAGS="-I$DEST/$ABI/include"
  
      EXTRA_CFLAGS="$EXTRA_CFLAGS -I$ANDROID_SOURCE/frameworks/base/include -I$ANDROID_SOURCE/system/core/include"
  
      EXTRA_CFLAGS="$EXTRA_CFLAGS -I$ANDROID_SOURCE/frameworks/native/include"
  
      EXTRA_CFLAGS="$EXTRA_CFLAGS -I$ANDROID_SOURCE/frameworks/native/include/media/openmax"
  
      EXTRA_CFLAGS="$EXTRA_CFLAGS -I$ANDROID_SOURCE/frameworks/av/include"
  
      EXTRA_CFLAGS="$EXTRA_CFLAGS -I$ANDROID_SOURCE/frameworks/av/media/libstagefright"
  
      EXTRA_CFLAGS="$EXTRA_CFLAGS -I$NDK/sources/cxx-stl/gnu-libstdc++/4.9/include -I$NDK/sources/cxx-stl/gnu-libstdc++/4.9/libs/$ABI/include"
  
      EXTRA_CFLAGS="$EXTRA_CFLAGS -I$ANDROID_SOURCE/hardware/libhardware/include"
  
      if [ "$ARCH" = "arm" ]; then
  
          EXTRA_CFLAGS="$EXTRA_CFLAGS -march=armv7-a -mfloat-abi=softfp -mfpu=neon -Wl,--no-undefined" #-Werror=implicit-function-declaration"
  
      fi
  
      EXTRA_LDFLAGS="-Wl,--fix-cortex-a8 -L$ANDROID_LIBS -Wl,-rpath-link,$ANDROID_LIBS -L$NDK/sources/cxx-stl/gnu-libstdc++/4.9/libs/$ABI"
  
      EXTRA_CXXFLAGS="-Wno-multichar -fno-exceptions -fno-rtti"
  
      FLAGS="$FLAGS --prefix=$DEST/$ABI"
  
  
  
      mkdir -p $DEST/$ABI
  
      mkdir -p $OBJS/$ABI
  
  
  
      echo $FLAGS --extra-cflags="$EXTRA_CFLAGS" --extra-ldflags="$EXTRA_LDFLAGS" --extra-cxxflags="$EXTRA_CXXFLAGS" > $DEST/$ABI/info.txt
  
      echo "Configuring ..."
  
      cd $OBJS/$ABI
  
      $ROOT_DIR/configure $FLAGS --extra-cflags="$EXTRA_CFLAGS" --extra-ldflags="$EXTRA_LDFLAGS" --extra-cxxflags="$EXTRA_CXXFLAGS" | tee $DEST/$ABI/configuration.txt
  
      [ $PIPESTATUS == 0 ] || exit 1
  
      echo "Making ..."
  
      #make clean
  
      make -j4 || exit 1
  
      make install || exit 1
  
      cd $CUR_DIR
  
  done