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• osx build ffmpeg for android

  23 novembre 2018, par Allen

  I want to build ffmpeg source code for android platform.

  And i had followed some tutorials, but build failed.

  here are my configs

  1. build_android.sh file

     #!/bin/bash
     
     NDK=/Users/***/Library/Android/ndk/android-ndk-r14b
     
     SYSROOT=$NDK/platforms/android-19/arch-arm/
     
     TOOLCHAIN=$NDK/toolchains/arm-linux-androideabi-4.9/prebuilt/darwin-x86_64
     
     function build_one
     
     {
     
         ./configure 
     
         --prefix=$PREFIX 
     
         --enable-shared 
     
         --disable-static 
     
         --disable-doc 
     
         --disable-ffmpeg 
     
         --disable-ffplay 
     
         --disable-ffprobe 
     
         --disable-ffserver 
     
         --disable-avdevice 
     
         --disable-doc
     
         --disable-symver 
     
         --cross-prefix=$TOOLCHAIN/bin/arm-linux-androideabi- 
     
         --target-os=linux 
     
         --arch=arm 
     
         --enable-cross-compile 
     
         --sysroot=$SYSROOT 
     
         --extra-cflags="-Os -fpic $ADDI_CFLAGS" 
     
         --extra-ldflags="$ADDI_LDFLAGS" 
     
         $ADDITIONAL_CONFIGURE_FLAG
     
         make clean
     
         make
     
         make install
     
     }
     
     CPU=arm
     
     PREFIX=$(pwd)/androidtest/$CPU
     
     ADDI_CFLAGS="-marm"
     
     build_one

  2. configure file

     I have also changed configure file

  change

  SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
  
  LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
  
  SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
  
  SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'

  to

  SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'  
  
  LIB_INSTALL_EXTRA_CMD='$$(RANLIB)"$(LIBDIR)/$(LIBNAME)"'  
  
  SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'  
  
  SLIB_INSTALL_LINKS='$(SLIBNAME)'

  3. console output

  ...
  
  INSTALL   doc/examples/demuxing_decoding.c
  
  INSTALL   doc/examples/encode_audio.c
  
  INSTALL   doc/examples/encode_video.c
  
  INSTALL   doc/examples/extract_mvs.c
  
  INSTALL   doc/examples/filter_audio.c
  
  INSTALL   doc/examples/filtering_audio.c
  
  INSTALL   doc/examples/filtering_video.c
  
  INSTALL   doc/examples/http_multiclient.c
  
  INSTALL   doc/examples/hw_decode.c
  
  INSTALL   doc/examples/metadata.c
  
  INSTALL   doc/examples/muxing.c
  
  INSTALL   doc/examples/qsvdec.c
  
  INSTALL   doc/examples/remuxing.c
  
  INSTALL   doc/examples/resampling_audio.c
  
  INSTALL   doc/examples/scaling_video.c
  
  INSTALL   doc/examples/transcode_aac.c
  
  INSTALL   doc/examples/transcoding.c
  
  INSTALL   doc/examples/vaapi_encode.c
  
  INSTALL   doc/examples/vaapi_transcode.c
  
  INSTALL   doc/examples/README
  
  INSTALL   doc/examples/Makefile
  
  INSTALL   libavdevice/libavdevice.a
  
  /bin/sh: ranlib/usr/local/lib/libavdevice.a: No such file or directory
  
  make: *** [install-libavdevice-static] Error 127

  4. problem

  according to the console output, libavdevice.a not found.

  

  but I can find it in the finder

  how to fix /bin/sh: ranlib/usr/local/lib/libavdevice.a: No such file or directory error ?

  i have searched some resolvers for make: *** [install-libavdevice-static] Error 127 but not work for me.

• Fix mismatched oc_mb_fill_cmapping11 signature.

  31 octobre 2014, par Tim Terriberry

  Fix mismatched oc_mb_fill_cmapping11 signature.
  oc_mb_fill_cmapping11() was defined without the last two parameters
  
   of its fellow mapping functions, meaning it got called with extra
  
   undeclared parameters.
  This could confuse the emscripten JavaScript cross-compiler's asm.js
  
   optimizations, as it's very picky about function signatures.
  Fixes #2068.
  
  Patch by Brion Vibber <brion@pobox.com>.
  git-svn-id : http://svn.xiph.org/trunk/theora@19261 0101bb08-14d6-0310-b084-bc0e0c8e3800
  

  • [DH] lib/state.c

• can't find NDK camera and media native API symbols when linking libavdevice.a to libffmpeg.so

  4 septembre 2018, par jianwen

  I’m using NDK tools to build ffmpeg shared lib which will be used in my
  android rtsp project.All needed components are compiled/linked as seperate
  static libs, and at last these libs will be linked as a single shared lib.
  Everything goes well except the last step. error happens when linking
  libavdevice, all symbols in NDK camera and media can not be found, error
  log :

  libavdevice/android_camera.c:702: error: undefined reference    
  
  to 'ACameraCaptureSession_stopRepeating'
  
  libavdevice/android_camera.c:706: error: undefined reference 
  
  to 'ACameraCaptureSession_close'
  
  libavdevice/android_camera.c:711: error: undefined reference 
  
  to 'ACaptureRequest_removeTarget'
  
  libavdevice/android_camera.c:712: error: undefined reference
  
  to 'ACaptureRequest_free'
  
  libavdevice/android_camera.c:717: error: undefined reference 
  
  to 'ACameraOutputTarget_free'
  
  libavdevice/android_camera.c:722: error: undefined reference 
  
  to 'ACaptureSessionOutputContainer_remove'
  
  libavdevice/android_camera.c:724: error: undefined reference 
  
  to 'ACaptureSessionOutput_free'
  
  libavdevice/android_camera.c:729: error: undefined reference 
  
  to 'ANativeWindow_release'
  
  libavdevice/android_camera.c:734: error: undefined reference 
  
  to 'ACaptureSessionOutputContainer_free'
  
  libavdevice/android_camera.c:739: error: undefined reference 
  
  to 'ACameraDevice_close'
  
  libavdevice/android_camera.c:744: error: undefined reference 
  
  to 'AImageReader_delete'
  
  libavdevice/android_camera.c:749: error: undefined reference 
  
  to 'ACameraMetadata_free'
  
  libavdevice/android_camera.c:756: error: undefined reference
  
  to 'ACameraManager_delete'
  
  libavdevice/android_camera.c:172: error: undefined reference
  
  to 'ACameraDevice_getId'
  
  libavdevice/android_camera.c:163: error: undefined reference
  
  to 'ACameraDevice_getId'
  
  libavdevice/android_camera.c:392: error: undefined reference
  
  to 'AImageReader_acquireLatestImage'
  
  libavdevice/android_camera.c:483: error: undefined reference  
  
  to 'AImage_delete'
  
  libavdevice/android_camera.c:345: error: undefined reference
  
  to 'AImage_getPlanePixelStride'
  
  libavdevice/android_camera.c:346: error: undefined reference
  
  to 'AImage_getPlaneData'
  
  ...

  Here is my build script which is ran on my Windows 7 x86_64 PC.

  #!/bin/bash
  
  export TMPDIR=D:/other/AndroidDevelopment/ffmpeg-4.0.2/ffmpegtemp 
  
  NDK=D:/software/app/android_sdk/ndk-bundle
  
  SYSROOT=$NDK/platforms/android-28/arch-x86_64/
  
  TOOLCHAIN=$NDK/toolchains/x86_64-4.9/prebuilt/windows-x86_64
  
  CPU=x86_64
  
  PREFIX=./android/$CPU
  
  
  
  function build_one
  
  {
  
      ./configure \
  
      --prefix=$PREFIX \
  
      --enable-static \
  
      --enable-jni \
  
      --enable-pthreads \
  
      --enable-mediacodec \
  
      --disable-asm \
  
      --disable-shared \
  
      --disable-doc \
  
      --disable-ffmpeg \
  
      --disable-ffplay \
  
      --disable-ffprobe \
  
      --disable-doc \
  
      --disable-symver \
  
      --cross-prefix=$TOOLCHAIN/bin/x86_64-linux-android- \
  
      --target-os=android \
  
      --arch=x86_64 \
  
      --enable-cross-compile \
  
      --sysroot=$SYSROOT \
  
      --extra-cflags=" -isysroot $NDK/sysroot  -I$NDK/sysroot/usr/include/x86_64-linux-android" \
  
      --extra-ldflags=-pie 
  
  make clean
  
  make -j4
  
  make install
  
  
  
  $TOOLCHAIN/bin/x86_64-linux-android-ld \
  
  -rpath-link=$SYSROOT/usr/lib64 \
  
  -L$SYSROOT/usr/lib64 \
  
  -L$PREFIX/lib \
  
  -soname libffmpeg.so -shared -nostdlib -Bsymbolic --whole-archive --no- undefined -o \
  
  $PREFIX/libffmpeg.so \
  
  libavcodec/libavcodec.a \
  
  libavfilter/libavfilter.a \
  
  libswresample/libswresample.a \
  
  libavformat/libavformat.a \
  
  libavutil/libavutil.a \
  
  libswscale/libswscale.a \
  
  libavdevice/libavdevice.a \
  
  -lc -lm -lz -ldl -llog --dynamic-linker=/system/bin/linker \
  
  $TOOLCHAIN/lib/gcc/x86_64-linux-android/4.9.x/libgcc.a \
  
  }
  
  build_one