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• Android ffmpeg adb shell Unknown encoder 'libx264'

  25 novembre 2017, par IChp

  When I run ffmpeg on android by adb shell, it shows this error :

   Duration: 00:00:12.00, start: 0.000000, bitrate: 30412 kb/s Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 352x288, 30412 kb/s, 25 tbr, 25 tbn, 25 tbc
  
  [4;31mUnknown encoder 'libx264'

  I don’t understand what went wrong. It bothered me for a lot of days.
  Can you help me out ? Thanks in advance !
  

  (I pushed the compiled libffmpeg.so to /system/lib and pushed ffmpeg to /system/bin)

  Target : compile ffmpeg with x264, and run libffmpeg.so on android device by adb shell.

  Compiled environment : Ubuntu16.0 32bit,ndk r10b 32bit platform 15, ffmpeg 3.0,x264 latest.

  My configure :

  cd ffmpeg-3.0.9
  
      export NDK=/home/ichp/project/android-ndk-r10b  
  
      export PREBUILT=$NDK/toolchains/arm-linux-androideabi-4.8/prebuilt  
  
      export PLATFORM=$NDK/platforms/android-15/arch-arm  
  
      export PREFIX=../simplefflib
  
      export CURRENT_PATH=/home/ichp/project/FREYA-LIVE-LIBRARY-OPTIMIZER-FOR-ANDROID

    ./configure --target-os=linux --prefix=$PREFIX
  
  --enable-cross-compile --enable-runtime-cpudetect --enable-asm --arch=arm --cpu=armv7-a --enable-libx264 --enable-encoder=libx264 --disable-encoders --disable-protocols --enable-protocol=file --enable-version3 --cc=$PREBUILT/linux-x86/bin/arm-linux-androideabi-gcc --cross-prefix=$PREBUILT/linux-x86/bin/arm-linux-androideabi- --disable-stripping --nm=$PREBUILT/linux-x86/bin/arm-linux-androideabi-nm --sysroot=$PLATFORM --enable-gpl --disable-shared --enable-static --enable-small --disable-ffprobe --disable-ffplay --enable-ffmpeg --disable-ffserver --disable-debug --enable-pthreads --enable-neon --extra-cflags="-I$CURRENT_PATH/temp/armeabi-v7a/include -fPIC -marm -DANDROID -DNDEBUG -static -O3 -march=armv7-a -mfpu=neon -mtune=generic-armv7-a -mfloat-abi=softfp -ftree-vectorize -mvectorize-with-neon-quad -ffast-math" --extra-ldflags="-L$CURRENT_PATH/temp/armeabi-v7a/lib"
  
  
  
  
  
  make clean
  
  make  
  
  make install 

• Android ffmpeg adb shell Unknown encoder 'libx264'

  25 novembre 2017, par IChp

  When I run ffmpeg on android by adb shell, it shows this error :

   Duration: 00:00:12.00, start: 0.000000, bitrate: 30412 kb/s Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 352x288, 30412 kb/s, 25 tbr, 25 tbn, 25 tbc
  
  [4;31mUnknown encoder 'libx264'

  I don’t understand what went wrong. It bothered me for a lot of days.
  Can you help me out ? Thanks in advance !
  

  (I pushed the compiled libffmpeg.so to /system/lib and pushed ffmpeg to /system/bin)

  Target : compile ffmpeg with x264, and run libffmpeg.so on android device by adb shell.

  Compiled environment : Ubuntu16.0 32bit,ndk r10b 32bit platform 15, ffmpeg 3.0,x264 latest.

  My configure :

  cd ffmpeg-3.0.9
  
      export NDK=/home/ichp/project/android-ndk-r10b  
  
      export PREBUILT=$NDK/toolchains/arm-linux-androideabi-4.8/prebuilt  
  
      export PLATFORM=$NDK/platforms/android-15/arch-arm  
  
      export PREFIX=../simplefflib
  
      export CURRENT_PATH=/home/ichp/project/FREYA-LIVE-LIBRARY-OPTIMIZER-FOR-ANDROID

    ./configure --target-os=linux --prefix=$PREFIX
  
  --enable-cross-compile --enable-runtime-cpudetect --enable-asm --arch=arm --cpu=armv7-a --enable-libx264 --enable-encoder=libx264 --disable-encoders --disable-protocols --enable-protocol=file --enable-version3 --cc=$PREBUILT/linux-x86/bin/arm-linux-androideabi-gcc --cross-prefix=$PREBUILT/linux-x86/bin/arm-linux-androideabi- --disable-stripping --nm=$PREBUILT/linux-x86/bin/arm-linux-androideabi-nm --sysroot=$PLATFORM --enable-gpl --disable-shared --enable-static --enable-small --disable-ffprobe --disable-ffplay --enable-ffmpeg --disable-ffserver --disable-debug --enable-pthreads --enable-neon --extra-cflags="-I$CURRENT_PATH/temp/armeabi-v7a/include -fPIC -marm -DANDROID -DNDEBUG -static -O3 -march=armv7-a -mfpu=neon -mtune=generic-armv7-a -mfloat-abi=softfp -ftree-vectorize -mvectorize-with-neon-quad -ffast-math" --extra-ldflags="-L$CURRENT_PATH/temp/armeabi-v7a/lib"
  
  
  
  
  
  make clean
  
  make  
  
  make install 

• run build.sh file not generating so files

  11 décembre 2017, par Shivani Vasundhara

  I am using this example of FFMpegExample for making Live wallpaper using mp4, I am using Windows 10, cygwin,16.0 NDK version and client version 1.3.7 to 1.3.10 of ffmpeg, I have successfully extracted it using extract.sh.

  Now my problem is when I run the build.sh command I am getting the error message below (see end of the question), but not making .so files.

  My build.sh file is :

  #!/bin/bash
  
  
  
  if [ "$NDK" = "" ]; then
  
  echo NDK variable not set, assuming $ANDROID_HOME
  
  export NDK=$ANDROID_HOME
  
  fi
  
  
  
  SYSROOT=$ANDROID_SYSROOT
  
  # Expand the prebuilt/* path into the correct one
  
  TOOLCHAIN=`echo $ANDROID_TOOLCHAIN`
  
  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 --arch=arm"
  
  FLAGS="$FLAGS --cross-prefix=arm-linux-androideabi- --arch=arm"
  
  FLAGS="$FLAGS --sysroot=$SYSROOT"
  
  #FLAGS="$FLAGS --soname-prefix=/data/data/ffvideolivewallpaper.frankandrobot.com/lib/"
  
  #FLAGS="$FLAGS --enable-version3 --enable-gpl"
  
  #FLAGS="$FLAGS --enable-version3 --enable-gpl --enable-nonfree"
  
  FLAGS="$FLAGS --disable-ffmpeg --disable-ffplay"
  
  FLAGS="$FLAGS --disable-ffserver --disable-ffprobe --disable-encoders"
  
  FLAGS="$FLAGS --disable-muxers --disable-devices --disable-protocols"
  
  FLAGS="$FLAGS --enable-protocol=file --enable-avfilter"
  
  FLAGS="$FLAGS --disable-network"
  
  FLAGS="$FLAGS --disable-avdevice --disable-asm"
  
  FLAGS="$FLAGS --enable-shared --disable-symver"
  
  FLAGS="$FLAGS --enable-small"
  
  FLAGS="$FLAGS --disable-doc"
  
  #FLAGS="$FLAGS --optimization-flags=-O2"
  
  
  
  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

  In $ANDROID_HOME is system environment variable defined to ndk-bundle path,
  $ANDROID_SYSROOT points : $ANDROID_HOME\platforms\android-27\arch-arm
  $ANDROID_TOOLCHAIN points : $ANDROID_HOME\toolchains\arm-linux-androideabi-4.9\prebuilt\windows-x86_64

  And when i run ./build.sh file in Cygwin I am getting this message :

  NDK variable not set, assuming D :\sdk\ndk-bundle
  arm-linux-androideabi-gcc is unable to create an executable file.
  C compiler test failed.

  If you think configure made a mistake, make sure you are using the latest
  version from SVN. If the latest version fails, report the problem to the
  ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
  Include the log file "config.log" produced by configure as this will help
  solving the problem.

  See screenshot of error message.

  Any kind of help is appreciated.