Recherche avancée

Sur d’autres sites (7916)

• Android UnsatisfiedLinkError using ffmpeg library

  5 avril 2012, par Bombastic

  I'm trying to use FFMPEG library in my Android application like this example here : AFPlayer . I have a builded and running version of this application and everything works fine, but when I tried to implement the same logic in my application it crashes everytime I start my media player. So the thing that I did was to copy and paste all files from afplayer's folders to my app (not sure if I have to do something else or if it's the right way,but it's my first touch with Android NDK and I'm not really sure how to do the things). Here is how I'm trying to start my DRadioMediaPlayer :

       player = new DRadioMediaPlayer();
  
      //player.setOnPreparedListener(this);
  
      //player.setOnCompletionListener(this);
  
      //player.setOnErrorListener(this);
  
      //player.setOnBufferingUpdateListener(this);
  
  
  
      //player.setAudioStreamType(AudioManager.STREAM_MUSIC);
  
      try 
  
      {
  
          Uri source = Uri.parse(playlist.getCurrentSource().toString());
  
          player.setDataSource(source);
  
          //player.setDataSource(playlist.getCurrentSource().toString());
  
          player.prepare();
  
  
  
          playbackState = DRadioPlayerService.PLAYBACK_STATE_BUFFERING;
  
      }

  This is how I load the library :

  static {
  
    System.loadLibrary("player");

  }

  and here is the exception which I'm getting :

      04-05 17:04:37.478: W/dalvikvm(686): No implementation found for native Lcom/nimasystems/android/radio2/DRadioMediaPlayer;.n_createEngine ()V
  
  04-05 17:04:37.478: D/AndroidRuntime(686): Shutting down VM
  
  04-05 17:04:37.478: W/dalvikvm(686): threadid=1: thread exiting with uncaught exception (group=0x400259f8)
  
  04-05 17:04:37.478: E/AndroidRuntime(686): FATAL EXCEPTION: main
  
  04-05 17:04:37.478: E/AndroidRuntime(686): java.lang.UnsatisfiedLinkError: n_createEngine
  
  04-05 17:04:37.478: E/AndroidRuntime(686):  at com.nimasystems.android.radio2.DRadioMediaPlayer.n_createEngine(Native Method)
  
  04-05 17:04:37.478: E/AndroidRuntime(686):  at com.nimasystems.android.radio2.DRadioMediaPlayer.<init>(DRadioMediaPlayer.java:68)
  
  04-05 17:04:37.478: E/AndroidRuntime(686):  at com.nimasystems.android.player.service.DRadioPlayerService.initPlayer(DRadioPlayerService.java:577)
  
  04-05 17:04:37.478: E/AndroidRuntime(686):  at com.nimasystems.android.player.service.DRadioPlayerService.onStart(DRadioPlayerService.java:568)
  
  04-05 17:04:37.478: E/AndroidRuntime(686):  at android.app.Service.onStartCommand(Service.java:420)
  
  04-05 17:04:37.478: E/AndroidRuntime(686):  at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:3267)
  
  04-05 17:04:37.478: E/AndroidRuntime(686):  at android.app.ActivityThread.access$3600(ActivityThread.java:135)
  
  04-05 17:04:37.478: E/AndroidRuntime(686):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2211)
  
  04-05 17:04:37.478: E/AndroidRuntime(686):  at android.os.Handler.dispatchMessage(Handler.java:99)
  
  04-05 17:04:37.478: E/AndroidRuntime(686):  at android.os.Looper.loop(Looper.java:144)
  
  04-05 17:04:37.478: E/AndroidRuntime(686):  at android.app.ActivityThread.main(ActivityThread.java:4937)
  
  04-05 17:04:37.478: E/AndroidRuntime(686):  at java.lang.reflect.Method.invokeNative(Native Method)
  
  04-05 17:04:37.478: E/AndroidRuntime(686):  at java.lang.reflect.Method.invoke(Method.java:521)
  
  04-05 17:04:37.478: E/AndroidRuntime(686):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:858)
  
  04-05 17:04:37.478: E/AndroidRuntime(686):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
  
  04-05 17:04:37.478: E/AndroidRuntime(686):  at dalvik.system.NativeStart.main(Native Method)
  
  </init>

  and here is the line where actually the exception it thrown :

  public DRadioMediaPlayer() {
  
    Log.d(TAG, "Create new MediaPlayer");
  
  
  
        n_createEngine(); // here
  
  
  
     }
  
  
  
  public native void n_createEngine();

  Any suggestions what actually can I do to fix this problem ? I've read all questions with similar issue here,but none of them worked for me.

  Thanks in advance !

• Can I just use the libraries from FFmpeg in android app ?

  3 juillet 2012, par LMDS

  After some time in the web I found that I have to use the FFmpeg in my app, I found a lot of things related with android and FFmpeg, I just want to use the FFmpeg, but I can't create the libraries and also I don't know how I used them, I just want to receive the videos from a rtsp streaming and them somehow put them in a videoview or mediaplayer, I have the NDK already installed in my eclipse and I know how to use the CYGWIN. can anyone help me ? sorry about my English and thanks

• how to use ffmpeg library to stream audio from mms links on Android ?

  3 juillet 2012, par Caique

  i have searched a lot about the ffmpeg library. I have already installed it, the android ndk too... and i don't know how to stream links mms. I understand that it uses native methods, but i never used native methods before, how we can use ? anyone already did something like ?
  what i need is play a radio from a url, what uses mms protocol, is there a way to do it with ffmpeg library ? apparently, in the iphone is so simple to use this library.
  i know that is possible with the vitamio plugin, but i want to know how to use with the ffmpeg library.
  sorry for my english
  thanks