An opencore amr codec JNI wrapper with explanation

• opencore is the multimedia framework of android, which is a originallly contributed by PacketVideo.
• AMR is abbreviation for Adaptive Multi-Rate audio codec, which is an audio compression format optimized for speech coding.
• opencore-AMR is extracted from opencore as an codec for amr<->pcm encode/decode

• opencore-AMR-Android is a wrapper for handy usage. You can usage wrapped api in Android Application without any troubles of writing c++ wrapper or ndk mk file.

• Down load the package.
• Put jni/libs/src folder to your Android Studio or ADT application project.
• Call api like this:

    AmrEncoder.init(0);
    int mode = AmrEncoder.Mode.MR122.ordinal();
    short[] in;//short array read from AudioRecorder
    byte[] out = new byte[in.length];
    int byteEncoded = AmrEncoder.encode(mode, in, out);
    AmrEncoder.exit();

there you go.