title: Getting message -> Invalid data found when processing input
body: <p>I want to use ffmpeg lib in my library.For that purpose,i have successfully compiled it.But when i try to execute any command,i am getting this message:</p>
  
  <pre><code>Invalid data found when processing input.
  </code></pre>
  
  <p>I don't know whats the reason behind it.This is the code:</p>
  
  <pre><code>public class Videokit extends Activity {
      String FilePath;
      String OutPut;
      Context mycontext;
      Videokit vk ;
      static 
      {
          System.loadLibrary("videokit");
      }
  
      public native void run(String[] args);
  
      public void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.main);
          FilePath =Environment.getExternalStorageDirectory().toString()+"/output.3gp";
          try {
              ffmpegrun();
          } catch (IOException e) {
              // TODO Auto-generated catch block
              e.printStackTrace();
          }
      }
  
      public String ffmpegrun() throws IOException
      {
          boolean success=false;
          File folder = new File(Environment.getExternalStorageDirectory().toString() + "/image-%3d.jpeg");
          File file = new File(FilePath);
          System.out.println("filepath exists at:"+file.getAbsolutePath());
          if (!folder.exists()) {
              success = folder.mkdirs();
  //              Toast.makeText(mycontext,"outfile.mp4 exists at"+folder.getAbsolutePath(),Toast.LENGTH_LONG).show();
               OutPut = folder.getAbsolutePath();
          }
          System.out.println("outfile.flv exists at:"+folder.getAbsolutePath());
          run(new String[]{
                  "ffmpeg",
                  "-i",
                  FilePath,
                  "-r 1", 
                   "-f",
                   "image2",
                   "image-%3d.jpeg"
          }); 
          return OutPut;
      }
  }
  </code></pre>
  
  <p>This is the log :</p>
  
  <pre><code>10-07 17:00:03.707: D/dalvikvm(8760): Trying to load lib /data/data/uk.co.halfninja.videokit/lib/libvideokit.so 0x44e8c958
  10-07 17:00:03.837: D/dalvikvm(8760): Added shared lib /data/data/uk.co.halfninja.videokit/lib/libvideokit.so 0x44e8c958
  10-07 17:00:03.837: I/Videokit(8760): Loading native library compiled at 13:52:27 Oct  7 2012
  10-07 17:00:03.917: I/System.out(8760): filepath exists at:/sdcard/output.3gp
  10-07 17:00:03.917: I/System.out(8760): outfile.flv exists at:/sdcard/image-%3d.jpeg
  10-07 17:00:03.917: D/dalvikvm(8760): +++ not scanning '/system/lib/libwebcore.so' for 'run' (wrong CL)
  10-07 17:00:03.917: D/dalvikvm(8760): +++ not scanning '/system/lib/libmedia_jni.so' for 'run' (wrong CL)
  10-07 17:00:03.928: D/dalvikvm(8760): +++ not scanning '/system/lib/libexif.so' for 'run' (wrong CL)
  10-07 17:00:03.928: D/Videokit(8760): run() called
  10-07 17:00:03.928: D/Videokit(8760): run passing off to main()
  10-07 17:00:03.928: D/Videokit(8760): main(): registering all modules
  10-07 17:00:03.938: D/Videokit(8760): main(): registered everything
  10-07 17:00:03.938: D/Videokit(8760): main(): initting opts
  10-07 17:00:03.968: D/Videokit(8760): main(): initted opts.
  10-07 17:00:03.968: E/Videokit(8760): ffmpeg version N-30996-gf925b24, Copyright (c) 2000-2011 the FFmpeg developers
  10-07 17:00:03.979: E/Videokit(8760):   built on Oct  7 2012 13:52:32 with gcc 4.4.3
  10-07 17:00:03.979: E/Videokit(8760):   configuration: --enable-cross-compile --arch=arm5te --enable-armv5te --target-os=linux --disable-stripping --prefix=../output --disable-neon --enable-version3 --disable-shared --enable-static --enable-gpl --enable-memalign-hack --cc=arm-linux-androideabi-gcc --ld=arm-linux-androideabi-ld --extra-cflags='-fPIC -DANDROID -D__thumb__ -mthumb -Wfatal-errors -Wno-deprecated' --disable-everything --enable-decoder=mjpeg --enable-demuxer=mjpeg --enable-parser=mjpeg --enable-demuxer=image2 --enable-muxer=mp4 --enable-encoder=libx264 --enable-libx264 --enable-decoder=rawvideo --enable-protocol=file --enable-hwaccels --disable-ffmpeg --disable-ffplay --disable-ffprobe --disable-ffserver --disable-network --enable-filter=buffer --enable-filter=buffersink --disable-demuxer=v4l --disable-demuxer=v4l2 --disable-indev=v4l --disable-indev=v4l2 --extra-cflags='-I../x264 -Ivideokit' --extra-ldflags=-L../x264
  10-07 17:00:03.987: D/Videokit(8760): main(): parsing options
  10-07 17:00:03.987: D/Videokit(8760): parse_options has 7 options to parse
  10-07 17:00:04.050: E/Videokit(8760): /sdcard/output.3gp: Invalid data found when processing input
  10-07 17:00:04.050: E/Videokit(8760): ffmpeg_exit(1) called!
  </code></pre>
  
  <p>Please help me.I am clueless about this problem.Thanks in advance.</p>