ProGuard Configuration

Please add the following rule inside your proguard-rules.pro file to preserve necessary method names and prevent linking errors.

-keep class com.arthenica.mobileffmpeg.Config {
    native <methods>;
    void log(int, byte[]);
    void statistics(int, float, float, long , int, double, double);
}

If this rule is not used, ProGuard will obfuscate all MobileFFmpeg methods and your application will fail with the following error on startup.

I/mobile-ffmpeg: Loading mobile-ffmpeg.
CheckJNI: method to register "disableNativeRedirection" not in the given class. This is slow, consider changing your RegisterNatives calls.
Failed to register native method com.arthenica.mobileffmpeg.Config.disableNativeRedirection()V in /data/app/com.arthenica.mobileffmpeg.test-1/split_lib_dependencies_apk.apk:classes14.dex
----- class 'Lcom/arthenica/mobileffmpeg/Config;' cl=0x12c68c10 -----
  objectSize=453 (432 from super)
  access=0x0008.0001
  super='java.lang.Class<java.lang.Object>' (cl=0x0)
  vtable (0 entries, 11 in super):
  direct methods (15 entries):
     0: void com.arthenica.mobileffmpeg.Config.<clinit>()
     1: void com.arthenica.mobileffmpeg.Config.<init>()
     2: void com.arthenica.mobileffmpeg.Config.enableLogCallback(com.arthenica.mobileffmpeg.LogCallback)
     3: void com.arthenica.mobileffmpeg.Config.enableNativeRedirection()
     4: void com.arthenica.mobileffmpeg.Config.enableRedirection()
     5: void com.arthenica.mobileffmpeg.Config.enableStatisticsCallback(com.arthenica.mobileffmpeg.StatisticsCallback)
     6: java.lang.String com.arthenica.mobileffmpeg.Config.getNativeBuildConf()
     7: int com.arthenica.mobileffmpeg.Config.getNativeLogLevel()
     8: java.lang.String com.arthenica.mobileffmpeg.Config.getNativeVersion()
     9: java.lang.String com.arthenica.mobileffmpeg.Config.getPackageName()
    10: void com.arthenica.mobileffmpeg.Config.nativeCancel()
    11: int com.arthenica.mobileffmpeg.Config.nativeExecute(java.lang.String[])
    12: void com.arthenica.mobileffmpeg.Config.resetStatistics()
    13: void com.arthenica.mobileffmpeg.Config.setFontDirectory(android.content.Context, java.lang.String, java.util.Map)
    14: void com.arthenica.mobileffmpeg.Config.setFontconfigConfigurationPath(java.lang.String)
  static fields (6 entries):
     0: com.arthenica.mobileffmpeg.Level com.arthenica.mobileffmpeg.Config.activeLogLevel
     1: com.arthenica.mobileffmpeg.Statistics com.arthenica.mobileffmpeg.Config.lastReceivedStatistics
     2: com.arthenica.mobileffmpeg.LogCallback com.arthenica.mobileffmpeg.Config.logCallbackFunction
     3: boolean com.arthenica.mobileffmpeg.Config.runningSystemCommand
     4: com.arthenica.mobileffmpeg.StatisticsCallback com.arthenica.mobileffmpeg.Config.statisticsCallbackFunction
     5: java.util.concurrent.atomic.AtomicReference com.arthenica.mobileffmpeg.Config.systemCommandOutputReference
E/mobile-ffmpeg: OnLoad failed to RegisterNatives for class com/arthenica/mobileffmpeg/Config.
A/art: art/runtime/java_vm_ext.cc:470] JNI DETECTED ERROR IN APPLICATION: JNI NewGlobalRef called with pending exception java.lang.NoSuchMethodError: no static or non-static method "Lcom/arthenica/mobileffmpeg/Config;.disableNativeRedirection()V"