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• How to create video from images without ffmpeg in Android studio without ndk ?

  22 octobre 2015, par sabish

  I am tring to making video from set of images with javacv but it show error like

  10-22 06:25:47.401 32386-32386/com.example.android_developer.myapplication E/AndroidRuntime : Caused by : java.lang.UnsatisfiedLinkError : Couldn’t load avutil from loader dalvik.system.PathClassLoader[dexPath=/data/app/com.example.android_developer.myapplication-16.apk,libraryPath=/data/app-lib/com.example.android_developer.myapplication-16] : findLibrary returned null

  I spend almost 2 weeks on this please someone give project example.

• Building FFMPEGINTEROP with Visual Studio 2017 ?

  25 septembre 2018, par Francois Gagnon

  I’m working on a project that requires a video player. I’ve been using the standard UWP MediaPlayerElement but it refuses to read many types of videos, including ASF and FLV and some older MPG.

  I’ve read that ffmpeginterop is more compatible with a variety of codecs. However building it is a finicky and all the instructions are designed for VS2015 and command prompt for ARM processor, which does not exist for VS2017. I can’t find an updated version of the instructions (Left a message on their GIT site as well... no answers).

  So my question is two-fold :

  1. Is there any way to download the missing/updated codecs to include them in my project that uses the standard UWP approach ?

  2. Is there an updated way/tutorial/instructions of building ffmpeginterop with VS2017 ?

  3. Is ffmpeginterop too old and I should not build using it going forward ?

  Thanks !

• 'imported-lib - NOTFOUND' in building ffmpeg 3.2 for android studio 2.2

  17 février 2017, par mdang

  I am trying to build and use ffmpeg for Android. My Andoid Studio version is 2.2.2 and ffmpeg is 3.2. Following Android documentation on how to import rebuild library, I think I got the setting right but kept on getting this error

  ninja: error: 'avcodec-NOTFOUND', needed by '../../../../build/intermediates/cmake/debug/obj/armeabi-v7a/...

  This is the setting

  add_library( avcodec SHARED IMPORTED )
  
  add_library( avdevice SHARED IMPORTED )
  
  add_library( avfilter SHARED IMPORTED )
  
  add_library( avformat SHARED IMPORTED )
  
  add_library( avutil SHARED IMPORTED )
  
  add_library( swscale SHARED IMPORTED )
  
  
  
  set_target_properties( avcodec
  
                          PROPERTIES FFMPEG_LIB_IMPORTED_LOCATION
  
                          libs/ffmpeg/${ANDROID_ABI}/lib/libavcodec.so
  
                          )
  
  set_target_properties(  avdevice
  
                          PROPERTIES FFMPEG_LIB_IMPORTED_LOCATION
  
                          libs/ffmpeg/${ANDROID_ABI}/lib/libavdevice.so
  
                          )
  
  set_target_properties( avfilter
  
                          PROPERTIES FFMPEG_LIB_IMPORTED_LOCATION
  
                          libs/ffmpeg/${ANDROID_ABI}/lib/libavfilter.so
  
                          )
  
  set_target_properties( avformat
  
                          PROPERTIES FFMPEG_LIB_IMPORTED_LOCATION
  
                          libs/ffmpeg/${ANDROID_ABI}/lib/libavformat.so
  
                          )
  
  set_target_properties( avutil
  
                          PROPERTIES FFMPEG_LIB_IMPORTED_LOCATION
  
                          libs/ffmpeg/${ANDROID_ABI}/lib/libavutil.so
  
                          )
  
  set_target_properties( swscale
  
                          PROPERTIES FFMPEG_LIB_IMPORTED_LOCATION
  
                          libs/ffmpeg/${ANDROID_ABI}/lib/libswscale.so
  
                          )
  
  
  
  # Specifies a path to native header files.
  
  include_directories(
  
                      libs/ffmpeg/${ANDROID_ABI}/include
  
                      )
  
  
  
  target_link_libraries( # Specifies the target library.
  
                         native-lib
  
  
  
                         # Links the target library to the log library
  
                         # included in the NDK.
  
                         avcodec avdevice avfilter avformat avutil swscale
  
                         ${log-lib}
  
                          )

  If I specify the full library name, libavcodec.so..., the error would go away.

  target_link_libraries( # Specifies the target library.
  
                         native-lib
  
  
  
                         # Links the target library to the log library
  
                         # included in the NDK.
  
                         libavcodec.so libavdevice.so libavfilter.so libavformat.so libavutil.so libswscale.so
  
                         ${log-lib}
  
                          )

  I wonder if anyone encountered similar issue or know why the compilation behaves this way.