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• android ffmpeg compilation error

  28 août 2012, par swapnil adsure

  hey guys i am going to share my script and error please help me to solve it
  i want to compile ffmpeg on android

  '# !/bin/bash
  # Author : Dmitry Dzakhov (based on Guo Mingyu's script)

  # Creating conf.sh in ffmpeg directory
  
  NDK=~/android-ndk
  
  PLATFORM=$NDK/platforms/android-14/arch-arm
  
  PREBUILT=$NDK/toolchains/arm-linux-androideabi-4.4.3/prebuilt/darwin-x86
  
  output="conf.sh"
  
  
  
  [ -f conf.sh ] && echo "Old $output has been removed."
  
  echo '#!/bin/bash' > $output
  
  echo "PREBUILT=$PREBUILT" >> $output
  
  echo "PLATFORM=$PLATFORM" >> $output
  
  echo './configure --target-os=linux \
  
      --prefix=./android/armv7-a \
  
      --enable-cross-compile \
  
      --extra-libs="-lgcc" \
  
      --arch=arm \
  
      --cc=$PREBUILT/bin/arm-linux-androideabi-gcc \
  
      --cross-prefix=$PREBUILT/bin/arm-linux-androideabi- \
  
      --nm=$PREBUILT/bin/arm-linux-androideabi-nm \
  
      --sysroot=$PLATFORM \
  
      --extra-cflags=" -O3 -fpic -DANDROID -DHAVE_SYS_UIO_H=1 -Dipv6mr_interface=ipv6mr_ifindex -fasm -Wno-psabi -fno-short-enums -fno-strict-aliasing -finline-limit=300 -mfloat-abi=softfp -mfpu=neon -marm -march=armv7-a -mtune=cortex-a8 " \
  
      --disable-shared \
  
      --enable-static \
  
      --extra-ldflags="-Wl,-rpath-link=$PLATFORM/usr/lib -L$PLATFORM/usr/lib -nostdlib -lc -lm -ldl -llog" \
  
      --enable-parsers \
  
      --enable-encoders \
  
      --enable-decoders \
  
      --enable-muxers \
  
      --enable-demuxers \
  
      --enable-swscale \
  
      --enable-swscale-alpha \
  
      --disable-ffplay \
  
      --disable-ffprobe \
  
      --enable-ffserver \
  
      --enable-network \
  
      --enable-indevs \
  
      --disable-bsfs \
  
      --enable-filters \
  
      --enable-avfilter \
  
      --enable-protocols \
  
      --disable-asm \
  
      --enable-neon' >> $output
  
  
  
  # start configure
  
  sudo chmod +x $output
  
  echo "configuring..."
  
  ./$output || (echo configure failed && exit 1)
  
  
  
  # modify the config.h
  
  echo "modifying the config.h..."
  
  sed -i "s/#define restrict restrict/#define restrict/g" config.h
  
  
  
  # remove static functions in libavutil/libm.h
  
  echo "removing static functions in libavutil/libm.h..."
  
  sed -i "/static/,/}/d" libavutil/libm.h
  
  
  
  # modify Makefiles
  
  echo "modifying Makefiles..."
  
  sed -i "/include \$(SUBDIR)..\/subdir.mak/d" libavcodec/Makefile
  
  sed -i "/include \$(SUBDIR)..\/config.mak/d" libavcodec/Makefile
  
  sed -i "/include \$(SUBDIR)..\/subdir.mak/d" libavfilter/Makefile
  
  sed -i "/include \$(SUBDIR)..\/config.mak/d" libavfilter/Makefile
  
  sed -i "/include \$(SUBDIR)..\/subdir.mak/d" libavformat/Makefile
  
  sed -i "/include \$(SUBDIR)..\/config.mak/d" libavformat/Makefile
  
  sed -i "/include \$(SUBDIR)..\/subdir.mak/d" libavutil/Makefile
  
  sed -i "/include \$(SUBDIR)..\/config.mak/d" libavutil/Makefile
  
  sed -i "/include \$(SUBDIR)..\/subdir.mak/d" libpostproc/Makefile
  
  sed -i "/include \$(SUBDIR)..\/config.mak/d" libpostproc/Makefile
  
  sed -i "/include \$(SUBDIR)..\/subdir.mak/d" libswscale/Makefile
  
  sed -i "/include \$(SUBDIR)..\/config.mak/d" libswscale/Makefile
  
  
  
  # generate av.mk in ffmpeg
  
  echo "generating av.mk in ffmpeg..."
  
  echo '# LOCAL_PATH is one of libavutil, libavcodec, libavformat, or libswscale
  
  
  
  #include $(LOCAL_PATH)/../config-$(TARGET_ARCH).mak
  
  include $(LOCAL_PATH)/../config.mak
  
  
  
  OBJS :=
  
  OBJS-yes :=
  
  MMX-OBJS-yes :=
  
  include $(LOCAL_PATH)/Makefile
  
  
  
  # collect objects
  
  OBJS-$(HAVE_MMX) += $(MMX-OBJS-yes)
  
  OBJS += $(OBJS-yes)
  
  
  
  FFNAME := lib$(NAME)
  
  FFLIBS := $(foreach,NAME,$(FFLIBS),lib$(NAME))
  
  FFCFLAGS  = -DHAVE_AV_CONFIG_H -Wno-sign-compare -Wno-switch -Wno-pointer-sign
  
  FFCFLAGS += -DTARGET_CONFIG=\"config-$(TARGET_ARCH).h\"
  
  
  
  ALL_S_FILES := $(wildcard $(LOCAL_PATH)/$(TARGET_ARCH)/*.S)
  
  ALL_S_FILES := $(addprefix $(TARGET_ARCH)/, $(notdir $(ALL_S_FILES)))
  
  
  
  ifneq ($(ALL_S_FILES),)
  
  ALL_S_OBJS := $(patsubst %.S,%.o,$(ALL_S_FILES))
  
  C_OBJS := $(filter-out $(ALL_S_OBJS),$(OBJS))
  
  S_OBJS := $(filter $(ALL_S_OBJS),$(OBJS))
  
  else
  
  C_OBJS := $(OBJS)
  
  S_OBJS :=
  
  endif
  
  
  
  C_FILES := $(patsubst %.o,%.c,$(C_OBJS))
  
  S_FILES := $(patsubst %.o,%.S,$(S_OBJS))
  
  
  
  FFFILES := $(sort $(S_FILES)) $(sort $(C_FILES))' > av.mk
  
  
  
  echo 'include $(all-subdir-makefiles)' > ../Android.mk
  
  
  
  echo 'LOCAL_PATH := $(call my-dir)
  
  include $(CLEAR_VARS)
  
  LOCAL_STATIC_LIBRARIES := libavformat libavcodec libavutil libpostproc libswscale
  
  LOCAL_MODULE := ffmpeg
  
  include $(BUILD_SHARED_LIBRARY)
  
  include $(call all-makefiles-under,$(LOCAL_PATH))' > Android.mk
  
  
  
  echo 'LOCAL_PATH := $(call my-dir)
  
  include $(CLEAR_VARS)
  
  include $(LOCAL_PATH)/../av.mk
  
  LOCAL_SRC_FILES := $(FFFILES)
  
  LOCAL_C_INCLUDES :=        \
  
      $(LOCAL_PATH)        \
  
      $(LOCAL_PATH)/..
  
  LOCAL_CFLAGS += $(FFCFLAGS)
  
  LOCAL_CFLAGS += -include "string.h" -Dipv6mr_interface=ipv6mr_ifindex
  
  LOCAL_LDLIBS := -lz
  
  LOCAL_STATIC_LIBRARIES := $(FFLIBS)
  
  LOCAL_MODULE := $(FFNAME)
  
  include $(BUILD_STATIC_LIBRARY)' > libavformat/Android.mk
  
  
  
  echo 'LOCAL_PATH := $(call my-dir)
  
  include $(CLEAR_VARS)
  
  include $(LOCAL_PATH)/../av.mk
  
  LOCAL_SRC_FILES := $(FFFILES)
  
  LOCAL_C_INCLUDES :=        \
  
      $(LOCAL_PATH)        \
  
      $(LOCAL_PATH)/..
  
  LOCAL_CFLAGS += $(FFCFLAGS)
  
  LOCAL_CFLAGS += -std=c99
  
  LOCAL_LDLIBS := -lz
  
  LOCAL_STATIC_LIBRARIES := $(FFLIBS)
  
  LOCAL_MODULE := $(FFNAME)
  
  include $(BUILD_STATIC_LIBRARY)' > libavcodec/Android.mk
  
  
  
  echo 'LOCAL_PATH := $(call my-dir)
  
  include $(CLEAR_VARS)
  
  include $(LOCAL_PATH)/../av.mk
  
  LOCAL_SRC_FILES := $(FFFILES)
  
  LOCAL_C_INCLUDES :=        \
  
      $(LOCAL_PATH)        \
  
      $(LOCAL_PATH)/..
  
  LOCAL_CFLAGS += $(FFCFLAGS)
  
  LOCAL_STATIC_LIBRARIES := $(FFLIBS)
  
  LOCAL_MODULE := $(FFNAME)
  
  include $(BUILD_STATIC_LIBRARY)' > libavfilter/Android.mk
  
  
  
  echo 'LOCAL_PATH := $(call my-dir)
  
  include $(CLEAR_VARS)
  
  include $(LOCAL_PATH)/../av.mk
  
  LOCAL_SRC_FILES := $(FFFILES)
  
  LOCAL_C_INCLUDES :=        \
  
      $(LOCAL_PATH)        \
  
      $(LOCAL_PATH)/..
  
  LOCAL_CFLAGS += $(FFCFLAGS)
  
  LOCAL_STATIC_LIBRARIES := $(FFLIBS)
  
  LOCAL_MODULE := $(FFNAME)
  
  include $(BUILD_STATIC_LIBRARY)' > libavutil/Android.mk
  
  
  
  echo 'LOCAL_PATH := $(call my-dir)
  
  include $(CLEAR_VARS)
  
  include $(LOCAL_PATH)/../av.mk
  
  LOCAL_SRC_FILES := $(FFFILES)
  
  LOCAL_C_INCLUDES :=        \
  
      $(LOCAL_PATH)        \
  
      $(LOCAL_PATH)/..
  
  LOCAL_CFLAGS += $(FFCFLAGS)
  
  LOCAL_STATIC_LIBRARIES := $(FFLIBS)
  
  LOCAL_MODULE := $(FFNAME)
  
  include $(BUILD_STATIC_LIBRARY)' > libpostproc/Android.mk
  
  
  
  echo 'LOCAL_PATH := $(call my-dir)
  
  include $(CLEAR_VARS)
  
  include $(LOCAL_PATH)/../av.mk
  
  LOCAL_SRC_FILES := $(FFFILES)
  
  LOCAL_C_INCLUDES :=        \
  
      $(LOCAL_PATH)        \
  
      $(LOCAL_PATH)/..
  
  LOCAL_CFLAGS += $(FFCFLAGS)
  
  LOCAL_STATIC_LIBRARIES := $(FFLIBS)
  
  LOCAL_MODULE := $(FFNAME)
  
  include $(BUILD_STATIC_LIBRARY)' > libswscale/Android.mk
  
  
  
  # start build!
  
  echo "start ndk-building..."
  
  cd ../..
  
  $NDK/ndk-build
  
  # Change previous line to "$NDK/ndk-build V=1" if you'll get errors. This will give some more information.'

  and here is the error i got

  WARNING : /Users/swapnil/android-ndk/toolchains/arm-linux-androideabi-4.4.3/prebuilt/darwin-x86/bin/arm-linux-androideabi-pkg-config not found, library detection may fail.
  WARNING : Compiler does not indicate floating-point ABI, guessing soft.
  modifying the config.h

• How to make video player using ffmpeg and sdl for Android ?

  14 décembre 2012, par user1890849

  I want to make a video player using ffmpeg and sdl for android. I had already compiled Tutorial07.c from ffmpeg on Laptop. How compile it for Android using SDL ?

• FFMPEG for Android toolchains : arm-linux-armeabi-eabi-pkg-config - is there any toolchain in existence containing the pkg-config tool

  27 août 2012, par user1545779

  Does anybody know any toolchain for ffmpeg linux arm platform which contains the arm-linux-androideabi-pkg-config tool ?

  The Android NDK does not contain it. Also has anybody succeeded in building ffmpeg for android that contains the alsa device ? Please note that libasound is present on my Ubuntu x86 PC.

  After very extensive research visiting forums including ffmpeg.org, ffmpeg—nabbles, groups.google.com including the andro and android-ndk gropus, and the Internet in general, I have not succeeded in finding anyone who seems to know of its existence. At best, I have read people saying ignore it. Considering what it is needed for, I consider that a naive thing to say.

  A careful review of the standard ffmpeg configure script shows that for certain input and output devices a toolchain described as pkg_config_default=pkg-config is required. Also all items on the HAVE_LIST are SYSTEM DEPENDENT. The configure script states very clearly what dependencies are required for each indev or outdev item. Apparently this tool is used then to verify the libraries which are needed for the dependencies

  This is what happens when you attempt to configure ffmpeg for android

  jasongipsyblues@android-master : /android-ffmpeg/Project/jni$ ./configure_ffmpeg.sh
  ...
  ...
  ..
  ....
  License : GPL version 3 or later
  Creating config.mak and config.h...

  config.h is unchanged

  config.asm is unchanged

  libavutil/avconfig.h is unchanged

  WARNING : /home/jasongipsyblues/Desktop/apps/android-ndk-r8b/toolchains/arm-linux-androideabi-
  4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi-pkg-config not found, library detection may
  fail.

  On a PC with Ubuntu there is no issue with pkg-config.

  Please compare the following outputs when one greps for the in/out device alsa from the config.log files for an Ubuntu x86 PC and that for the android box using the android-ndk-r8 toolchain

  jasongipsyblues@android-master : /android-ffmpeg/Project/jni/ffmpeg$ cat config.log|grep >alsa
  alsa_indev
  alsa_outdev
  alsa_asoundlib_h
  INDEV_LIST='alsa_indev
  OUTDEV_LIST='alsa_outdev
  alsa_indev='yes'
  alsa_indev_deps='alsa_asoundlib_h snd_pcm_htimestamp'
  alsa_outdev='yes'
  alsa_outdev_deps='alsa_asoundlib_h'
  indevs_if_any='alsa_indev
  outdevs_if_any='alsa_outdev
  check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
  check_func_headers alsa/asoundlib.h snd_pcm_htimestamp -lasound
  1 #include
  /tmp/ffconf.VCjQQAHQ.c:1:28 : error : alsa/asoundlib.h : No such file or directory

  This is the compiler output showing the source of the error :
  

  check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
  check_func_headers alsa/asoundlib.h snd_pcm_htimestamp -lasound
  check_ld cc -lasound
  check_cc
  BEGIN /tmp/ffconf.VCjQQAHQ.c
  1 #include
  2 long check_snd_pcm_htimestamp(void) return (long) snd_pcm_htimestamp ;
  3 int main(void) return 0 ;
  END /tmp/ffconf.VCjQQAHQ.c
  /home/jasongipsyblues/Desktop/apps/android-ndk-r8b/toolchains/arm-linux-androideabi->4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi-gcc —sysroot=/home/jasongipsyblues/Desktop/apps/android-ndk-r8b/platforms/android-14/arch-arm -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -DPIC -I../x264 -mcpu=cortex-a9 -std=c99 -fomit-frame-pointer -fPIC -marm -c -o /tmp/ffconf.I2B2AXfH.o
  /tmp/ffconf.VCjQQAHQ.c
  /tmp/ffconf.VCjQQAHQ.c:1:28 : error : alsa/asoundlib.h : No such file or directory
  /tmp/ffconf.VCjQQAHQ.c : In function 'check_snd_pcm_htimestamp' :
  /tmp/ffconf.VCjQQAHQ.c:2 : error : 'snd_pcm_htimestamp' undeclared (first use in this function)
  /tmp/ffconf.VCjQQAHQ.c:2 : error : (Each undeclared identifier is reported only once
  /tmp/ffconf.VCjQQAHQ.c:2 : error : for each function it appears in.)

  This is for the Ubuntu x86PC ffmpeg
  jasongipsyblues@android-master : /ffmpeg$ cat config.log|grep alsa
  alsa_indev
  alsa_outdev
  alsa_asoundlib_h
  INDEV_LIST='alsa_indev
  OUTDEV_LIST='alsa_outdev
  alsa_indev='yes'
  alsa_indev_deps='alsa_asoundlib_h snd_pcm_htimestamp'
  alsa_outdev='yes'
  alsa_outdev_deps='alsa_asoundlib_h'
  indevs_if_any='alsa_indev
  outdevs_if_any='alsa_outdev
  check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
  check_func_headers alsa/asoundlib.h snd_pcm_htimestamp -lasound
  1 #include
  There is no error here and alsa is successfully included in the ffmpeg build