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• couldn't find "liblicense-jni.so lib using Android Studio

  15 novembre 2016, par Virani Ashish

  i have crated gif maker app using ffmpeg lib

  but zenfone 5 (asus t00j) not couldn’t find "liblicense-jni.so in app lib folder and other devicecan load lib perfect.

  if any one can idea to solve this error ?

  11-15 10:15:28.947 15471-15471/com.aspiration.gifmaker E/AndroidRuntime: FATAL EXCEPTION: main
  
       Process: com.aspiration.gifmaker, PID: 15471
  
       java.lang.UnsatisfiedLinkError: dalvik.system.PathClassLoader[DexPathList[[zip file "/data/app/com.aspiration.gifmaker-1/base.apk"],nativeLibraryDirectories=[/data/app/com.aspiration.gifmaker-1/lib/x86, /vendor/lib, /system/lib]]] couldn't find "liblicense-jni.so"
  
           at java.lang.Runtime.loadLibrary(Runtime.java:366)
  
           at java.lang.System.loadLibrary(System.java:989)
  
           at com.netcompss.ffmpeg4android.LicenseCheckJNI.<clinit>(LicenseCheckJNI.java:42)
  
           at com.netcompss.ffmpeg4android.GeneralUtils.isLicenseValid(GeneralUtils.java:509)
  
           at com.aspiration.gifmaker.activity.VideoSpeedActivity.onCreate(VideoSpeedActivity.java:210)
  
           at android.app.Activity.performCreate(Activity.java:5975)
  
           at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
  
           at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2269)
  
           at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2376)
  
           at android.app.ActivityThread.access$800(ActivityThread.java:147)
  
           at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1281)
  
           at android.os.Handler.dispatchMessage(Handler.java:102)
  
           at android.os.Looper.loop(Looper.java:135)
  
           at android.app.ActivityThread.main(ActivityThread.java:5253)
  
           at java.lang.reflect.Method.invoke(Native Method)
  
           at java.lang.reflect.Method.invoke(Method.java:372)
  
           at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
  
           at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
  
  </clinit>

• Different code(.java file) for different platform ?

  2 mars 2016, par AR792

  I have a code where image data is passed from bitmap to FFmpeg frame recorder and converted to a video. But i need to make small changes while running it on LG G3(armv7) from Asus zenfone 5(x86).

  Following are the class variables that create the issue :(declared under, class Main Activity)

  inputWidth = 1024 ;

  inputHeight = 650 ;

  Following is the method where the issue occurs :

   byte [] getNV21(int inputWidth, int inputHeight, Bitmap bitmap) {
  
  
  
      int [] argb = new int[inputWidth * inputHeight];
  
  
  
      bitmap.getPixels(argb, 0, inputWidth, 0, 0, inputWidth, inputHeight);
  
  
  
      byte [] yuv = new byte[inputWidth*inputHeight*3/2];
  
      encodeYUV420SP(yuv, argb, inputWidth, inputHeight);
  
  
  
      return yuv;
  
  }
  
  
  
  void encodeYUV420SP(byte[] yuv420sp, int[] argb, int width, int height) {
  
      final int frameSize = width * height;
  
  
  
      int yIndex = 0;
  
      int uvIndex = frameSize;
  
  
  
      int a, R, G, B, Y, U, V;
  
      int index = 0;
  
      for (int j = 0; j < height; j++) {
  
          for (int i = 0; i < width; i++) {
  
  
  
              a = (argb[index] & 0xff000000) >> 24; // a is not used obviously
  
              R = (argb[index] & 0xff0000) >> 16;
  
              G = (argb[index] & 0xff00) >> 8;
  
              B = (argb[index] & 0xff) >> 0;
  
  
  
              // well known RGB to YUV algorithm
  
              Y = ( (  66 * R + 129 * G +  25 * B + 128) >> 8) +  16;
  
              U = ( ( -38 * R -  74 * G + 112 * B + 128) >> 8) + 128;
  
              V = ( ( 112 * R -  94 * G -  18 * B + 128) >> 8) + 128;
  
  
  
              // NV21 has a plane of Y and interleaved planes of VU each sampled by a factor of 2
  
              //    meaning for every 4 Y pixels there are 1 V and 1 U.  Note the sampling is every other
  
              //    pixel AND every other scanline.
  
              yuv420sp[yIndex++] = (byte) ((Y < 0) ? 0 : ((Y > 255) ? 255 : Y));
  
              if (j % 2 == 0 && index % 2 == 0) {
  
                  yuv420sp[uvIndex++] = (byte)((V<0) ? 0 : ((V > 255) ? 255 : V));
  
                  yuv420sp[uvIndex++] = (byte)((U<0) ? 0 : ((U > 255) ? 255 : U));
  
              }
  
  
  
              index ++;
  
          }
  
      }
  
  }

  Working CODE :

  LG G3 :I can use the above variables at any place in the code to get the required output.
  Bitmap size returned = 2734200

  Asus Zenfone 5 : Except at creating the bitmap, I have to use everywhere else bitmap.getHeight() and bitmap.getWidth(), to get the required output.

  Surprisingly here Bitmap size returned = 725760 (So its not setting according to set bitmap parameters ?)

  INCORRECT CODE :

  LG G3 : IF i use bitmap.getHeight() and bitmap.getWidth(), i get java.lang.ArrayIndexOutOfBoundsException : length = 102354 , index = 102354. @getNV21 method

  Asus Zenfone 5 : If i use inputWidth , inputHeight i get
  java.lang.IllegalArgumentException : x + width must be <= bitmap.width() @getNV21 method

  How can i generalize the above code for both phones ?

• No NVENC capable devices found with RTX 2080 graphics card

  6 juin 2019, par AL-KOON

  I’m using ffmpeg and I got this error : No NVENC capable devices found

  cmd code : ffmpeg -i "OPM.mkv" -c:a copy -c:v nvenc_h264 test1.mp4

  my graphics card : ASUS GeForce RTX 2080 O8G ROG STRIX OC Edition GDDR6 HDMI DP 1.4 Type-C

  and when I used this command

  ffmpeg -i "OPM.mkv" -map 0:v:0 -map 0:a:0 -c:a copy -c:v nvenc_h264
  -crf 18 -preset slow "test1.mp4"

  I got this error : Error initializing output stream 0:0 -- Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height