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  • warning on compilation of ffmpeg on android

    21 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

  • java.io.ioexception.Runtime.getRuntime().exec(). environment and working directory null error in android

    22 octobre 2012, par rams
    File dir = new File("/mnt/sdcard");
    
Process process = Runtime.getRuntime().exec("ffmpeg -f image2 -i img%4d.png video.mp4", null, dir);

    when i try this line in android,i get environment and working directory null error in android. But when i try that line in java,it worked perfectly.but in android,it has some problem.

  • Images to Video converter in Android

    27 août 2013, par Sivakumar S

    I would like to convert multiple images(frames) to a video(MP4) in an android device. Also, I would like to convert video(MP4) into multiple images(for each frame). I have limited knowledge on FFMPEG, but installing FFMPEG in Android may consume more time. I Would like to ask experienced engineers to suggest a better strategy which can take less time to complete this task. Please point me to some open source code which I may modify to complete this task quickly.

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