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• Error FFmpeg in Android

  19 novembre 2013, par Mark

  I'm using FrameGrabber to load a video from sdcard and perform some image processing operation. I followed the tutorial at JavaCV site to load javacc and ffmpeg.
  Currently, to run the application, I'm using my tablet (Asus TF 101G with Android version 4.0.3) connected to my pc and it works fine. But if I try to run the same application in another device (e.g. Nexus with Android 4.1.2) I get these errors :

  02-01 16:51:54.687: E/AndroidRuntime(2839): FATAL EXCEPTION: main
  
  02-01 16:51:54.687: E/AndroidRuntime(2839): java.lang.ExceptionInInitializerError
  
  02-01 16:51:54.687: E/AndroidRuntime(2839):     at com.googlecode.javacv.FFmpegFrameGrabber.<init>(FFmpegFrameGrabber.java:104)
  
  02-01 16:51:54.687: E/AndroidRuntime(2839):     at com.example.com.uniud.avires.MainActivity.onCreate(MainActivity.java:92)
  
  02-01 16:51:54.687: E/AndroidRuntime(2839):     at android.app.Activity.performCreate(Activity.java:5008)
  
  02-01 16:51:54.687: E/AndroidRuntime(2839):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1079)
  
  02-01 16:51:54.687: E/AndroidRuntime(2839):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2023)
  
  02-01 16:51:54.687: E/AndroidRuntime(2839):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084)
  
  02-01 16:51:54.687: E/AndroidRuntime(2839):     at android.app.ActivityThread.access$600(ActivityThread.java:130)
  
  02-01 16:51:54.687: E/AndroidRuntime(2839):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195)
  
  02-01 16:51:54.687: E/AndroidRuntime(2839):     at android.os.Handler.dispatchMessage(Handler.java:99)
  
  02-01 16:51:54.687: E/AndroidRuntime(2839):     at android.os.Looper.loop(Looper.java:137)
  
  02-01 16:51:54.687: E/AndroidRuntime(2839):     at android.app.ActivityThread.main(ActivityThread.java:4745)
  
  02-01 16:51:54.687: E/AndroidRuntime(2839):     at java.lang.reflect.Method.invokeNative(Native Method)
  
  02-01 16:51:54.687: E/AndroidRuntime(2839):     at java.lang.reflect.Method.invoke(Method.java:511)
  
  02-01 16:51:54.687: E/AndroidRuntime(2839):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
  
  02-01 16:51:54.687: E/AndroidRuntime(2839):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
  
  02-01 16:51:54.687: E/AndroidRuntime(2839):     at dalvik.system.NativeStart.main(Native Method)
  
  02-01 16:51:54.687: E/AndroidRuntime(2839): Caused by: java.lang.ExceptionInInitializerError
  
  02-01 16:51:54.687: E/AndroidRuntime(2839):     at java.lang.Class.classForName(Native Method)
  
  02-01 16:51:54.687: E/AndroidRuntime(2839):     at java.lang.Class.forName(Class.java:217)
  
  02-01 16:51:54.687: E/AndroidRuntime(2839):     at com.googlecode.javacpp.Loader.load(Loader.java:338)
  
  02-01 16:51:54.687: E/AndroidRuntime(2839):     at com.googlecode.javacv.cpp.avcodec.<clinit>(avcodec.java:86)
  
  02-01 16:51:54.687: E/AndroidRuntime(2839):     ... 16 more
  
  02-01 16:51:54.687: E/AndroidRuntime(2839): Caused by: java.lang.UnsatisfiedLinkError: Cannot load library: link_image[1891]: 26325 could not load needed library &#39;libavutil.so&#39; for &#39;libjniavutil.so&#39; (load_library[1093]: Library &#39;libavutil.so&#39; not found)
  
  02-01 16:51:54.687: E/AndroidRuntime(2839):     at java.lang.Runtime.load(Runtime.java:340)
  
  02-01 16:51:54.687: E/AndroidRuntime(2839):     at java.lang.System.load(System.java:521)
  
  02-01 16:51:54.687: E/AndroidRuntime(2839):     at com.googlecode.javacpp.Loader.loadLibrary(Loader.java:422)
  
  02-01 16:51:54.687: E/AndroidRuntime(2839):     at com.googlecode.javacpp.Loader.load(Loader.java:372)
  
  02-01 16:51:54.687: E/AndroidRuntime(2839):     at com.googlecode.javacpp.Loader.load(Loader.java:319)
  
  02-01 16:51:54.687: E/AndroidRuntime(2839):     at com.googlecode.javacv.cpp.avutil.<clinit>(avutil.java:75)
  
  02-01 16:51:54.687: E/AndroidRuntime(2839):     ... 20 more
  
  </clinit></clinit></init>

  Any suggestion please ?

  I want to attach also my Android.mk file

  LOCAL_PATH := $(call my-dir)
  
  include $(CLEAR_VARS)
  
  OPENCV_LIB_TYPE:=STATIC
  
  include C:/Users/Marco/Desktop/new_ADT/adt-bundle-windows-x86_64/OpenCV-2.4.3.2-android-sdk/sdk/native/jni/OpenCV.mk
  
  OPENCV_INSTALL_MODULES:=on
  
  #OPENCV_CAMERA_MODULES:=on
  
  LOCAL_MODULE    := udmodule
  
  LOCAL_SRC_FILES := udjni.cpp
  
  LOCAL_LDLIBS +=  -llog -ldl
  
  include $(BUILD_SHARED_LIBRARY)

  and my Apllication.mk file

  APP_STL := gnustl_static
  
  APP_CPPFLAGS := -frtti -fexceptions
  
  APP_ABI := armeabi armeabi-v7a 
  
  #APP_ABI := all
  
  APP_PLATFORM := android-8

  Any suggestion ?
  Thanks

  Also I tried to change the application.mk file in this way but with no results :

  APP_STL := gnustl_static
  
  APP_CPPFLAGS := -frtti -fexceptions
  
  APP_ABI := armeabi
  
  LOCAL_CFLAGS += -march=armv7-a -mfloat-abi=softfp -mfpu=vfp -mfpu=neon
  
  LOCAL_LDLIBS += -Wl,--fix-cortex-a8
  
  APP_PLATFORM := android-8

• A "region code" restriction for a custom created video dvd file [closed]

  17 décembre 2012, par user931392

  I want to create a video dvd ( no menus, just "plug and play" ) from a few video files. I`m doing it like this :

  ffmpeg -i sample-media/hellboy-2.wmv -y -target ntsc-dvd sample-media-to-mpeg/hellboy-2.vob
  
  
  
  dvdauthor -o sample-dvd -x dvdauthor-settings.xml
  
  
  
  mkisofs -dvd-video -o hellboy-2-trailers.iso sample-dvd/

  where "dvdauthor-settings.xml" is : link.

  But when I try to play the iso file in windows it says :

  Windows Media Player cannot play the DVD because the disc prohibits playback in your region of the world. You must obtain a disc that is intended for your geographic region.

  When I open the *.IFO file with IfoEdit it says that all world regions are unabled.

  Can someone tell me why is this happening ? ( maybe the whole process of creating the *.iso file is wrong ? )

• Call an external dynamic library using node

  25 septembre 2018, par Merc

  I need to edit clips using node using one of the existing video manipulation libraries. (Note : I am aware that I could run an existing editing executable like FFMPEG, but that’s not what I am after).

  Question : What’s the best way to call native libraries in Node ?

  Background information : I will need to talk to one one these libraries : Gstreamer, FFmpeg/LibAV or libVLC.

  My ideal outcome is to have a nice, robust library that I use directly using node, but my lack of experience in terms of using native libraries, and the somehow fragmented world of video editing libraries.