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• Android NDK Linking shared library unsatisfied Linker Error

  6 janvier 2014, par nmxprime

  i have a problem,

  Below is the Android.mk

  LOCAL_PATH := $(call my-dir)
  
  INITIAL_PATH := $(LOCAL_PATH)
  
  
  
  include $(CLEAR_VARS)
  
  LOCAL_MODULE := ffmpegbuilt
  
  LOCAL_SRC_FILES := libffmpeg.so
  
  LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/
  
  include $(PREBUILT_SHARED_LIBRARY)
  
  
  
  
  
  LOCAL_PATH := $(INITIAL_PATH)
  
  LOCAL_MODULE    := main_module
  
  LOCAL_ARM_MODE := arm  # remove this if you want thumb mode
  
  LOCAL_SRC_FILES := main.c
  
  LOCAL_LDLIBS := -llog
  
  LOCAL_SHARED_LIBRARIES := ffmpegbuilt
  
  include $(BUILD_SHARED_LIBRARY)

  It creates the two shared_libraries as expected. i see those two libraries inside libs/armeabi folder
  When i run the application, Unsatisfied Linker error occurs as

  01-06 20:21:38.281: E/AndroidRuntime(435): FATAL EXCEPTION: main
  
  01-06 20:21:38.281: E/AndroidRuntime(435): java.lang.UnsatisfiedLinkError: Cannot load library: link_image[1962]:    32 could not load needed library 'libffmpeg.so' for 'libmain_module.so' (load_library[1104]: Library 'libffmpeg.so' not found)
  
  01-06 20:21:38.281: E/AndroidRuntime(435):  at java.lang.Runtime.loadLibrary(Runtime.java:434)
  
  01-06 20:21:38.281: E/AndroidRuntime(435):  at java.lang.System.loadLibrary(System.java:554)

  What could be the problem, also though i defined LOCAL_MODULE := ffmpegbuilt, why the prebuilt library's module name is not changing ?

• android.mk LOCAL_MODULE_FILENAME should not contain extensions

  25 février 2015, par nmxprime

  i am trying to build some of the files from libavcodec and libavutil

  Following this, i created Android.mk file as below :

  jni/Android.mk contains

  LOCAL_PATH := $(call my-dir)
  
  
  
  FFMPEG_TOP := $(LOCAL_PATH)
  
  
  
  include $(CLEAR_VARS)
  
  
  
  include $(FFMPEG_TOP)/libavutil/Android.mk
  
  include $(FFMPEG_TOP)/libavcodec/Android.mk
  
  
  
  
  
  
  
  LOCAL_PATH := $(FFMPEG_TOP)
  
  LOCAL_MODULE := mylib
  
  LOCAL_ARM_MODE := arm  # remove this if you want thumb mode
  
  LOCAL_SRC_FILES := myfunc1.c myfunc2.c maincfunction.c 3rdparty1.c 3rdparty2.c
  
  
  
  LOCAL_SRC_FILES += libavcodec.a libavutil.a
  
  
  
  LOCAL_LDLIBS := -llog
  
  
  
  include $(BUILD_SHARED_LIBRARY)

  jni/libavcodec/Android.mk contains

  LOCAL_PATH:= $(call my-dir)
  
  
  
  include $(CLEAR_VARS)
  
  
  
  SOURCE_H264_DECODER += h264.c h264idct.c h264pred.c h264_parser.c cabac.c
  
  SOURCE_H264_ENCODER += h264enc.c h264dspenc.c
  
  
  
  SOURCE_HAVE_ARM = \
  
      arm/dsputil_arm.c        \
  
      arm/dsputil_arm_s.S        \
  
      arm/jrevdct_arm.S \
  
      arm/mpegvideo_arm.c        \
  
      arm/simple_idct_arm.S
  
  
  
  SOURCE_HAVE_ARMV5TE = \
  
      arm/mpegvideo_armv5te.c \
  
      arm/mpegvideo_armv5te_s.S \
  
      arm/simple_idct_armv5te.S
  
  
  
  SOURCE_HAVE_ARMVFP = \
  
      arm/dsputil_vfp.S \
  
      arm/float_arm_vfp.S
  
  
  
  SOURCE_HAVE_ARMV6 = arm/simple_idct_armv6.S
  
  
  
  LOCAL_SRC_FILES := \
  
     allcodecs.c \
  
     audioconvert.c \
  
     bitstream.c \
  
     bitstream_filter.c \
  
     dsputil.c \
  
     eval.c \
  
     faanidct.c \
  
     imgconvert.c \
  
     jrevdct.c \
  
     opt.c \
  
     options.c \
  
     parser.c \
  
     raw.c \
  
     resample.c \
  
     resample2.c \
  
     simple_idct.c \
  
     utils.c
  
  
  
  LOCAL_SRC_FILES += $(SOURCE_H263_ENCODER)                 
  
  LOCAL_SRC_FILES += $(SOURCE_H264_DECODER)
  
  
  
  LOCAL_SRC_FILES += $(SOURCE_HAVE_ARM)                
  
  LOCAL_SRC_FILES += $(SOURCE_HAVE_ARMV5TE)                
  
  LOCAL_SRC_FILES += $(SOURCE_HAVE_ARMVFP)
  
  
  
  LOCAL_MODULE := libavcodec
  
  
  
  LOCAL_PRELINK_MODULE := false
  
  
  
  
  
  LOCAL_C_INCLUDES :=                           \
  
      $(FFMPEG_TOP)/                         \
  
      $(FFMPEG_TOP)/libavutil/                \
  
      $(LOCAL_PATH)                            \
  
      $(LOCAL_PATH)/arm/
  
  
  
  LOCAL_CFLAGS += -O4 -mno-thumb-interwork -mno-thumb -marm -DHAVE_AV_CONFIG_H
  
  
  
  include $(BUILD_STATIC_LIBRARY)    

  jni/libavutil/Android.mk contains
  LOCAL_PATH := $(call my-dir)

  include $(CLEAR_VARS)
  
  
  
  LOCAL_SRC_FILES := \
  
     adler32.c \
  
     aes.c \
  
     avstring.c \
  
     base64.c \
  
     crc.c \
  
     des.c \
  
     fifo.c \
  
     intfloat_readwrite.c \
  
     lfg.c \
  
     lls.c \
  
     log.c \
  
     lzo.c \
  
     mathematics.c \
  
     md5.c \
  
     mem.c \
  
     random.c \
  
     random_seed.c \
  
     rational.c \
  
     rc4.c \
  
     sha1.c \
  
     tree.c \
  
     utils.c
  
  
  
  LOCAL_MODULE := libavutil
  
  
  
  LOCAL_PRELINK_MODULE := false
  
  
  
  LOCAL_C_INCLUDES :=                                 \
  
      $(FFMPEG_TOP)/                                \
  
      $(LOCAL_PATH)                 \
  
      $(LOCAL_PATH)/arm/
  
  
  
  LOCAL_CFLAGS += -O4 -mno-thumb-interwork -mno-thumb -marm -DHAVE_AV_CONFIG_H
  
  
  
  include $(BUILD_STATIC_LIBRARY)

  The problem addressed here is not relavant to what i am facing, though the error is similar.

  The error i got is :

  Android NDK: jni/inner/Android.mk:mylib: LOCAL_MODULE_FILENAME should not include file extensions
  
  Android NDK: jni/inner/Android.mk:mylib: LOCAL_MODULE_FILENAME must not contain a file extension

  Please help !!
  [So often i am meeting headless problems !!]

• how to install and run phpize

  13 décembre 2016, par Hrishikesh Choudhari

  I have been meaning to install ffmpeg as an extension to my php setup. So before I can install it, I need to phpize it. I installed php5-dev by sudo apt-get install php5-dev But now when I run phpize I get the following error :

  phpize
  
  Cannot find config.m4. 
  
  Make sure that you run '/usr/bin/phpize' in the top level source directory of the module

  The location of my php.ini is /usr/local/zend/etc/php.ini

  From another online resource i tried this

  sudo apt-get install autoconf automake libtool m4

  But all of them are already installed.

  Locate config.m4 didnt return anything.

  Any pointers here how I can get phpize and thus, ffmpeg up and running ?