package org.sipdroid.media.codecs;

public class G722 extends Codec {

	public static final CodecInfo mCodecInfo = new CodecInfo();

	static {

		System.loadLibrary("g722");

		mCodecInfo.displayName = "G722";

		mCodecInfo.rtpPayloadName = "G722";

		mCodecInfo.description = "G722 16kHz codec";

		mCodecInfo.rtpPayloadCode = 9;

		mCodecInfo.samplingRate = 16000;

		mCodecInfo.rtpSampleDivider = 2;

		mCodecInfo.minFrameTimeMsecs = 20;

		mCodecInfo.codecFrameSize = 160;

		CodecManager.registerAudioCodec(new G722());

	}

	public class G722Context extends Context {

		public long ctx;

	}

	@Override

	public Context initDecoder() {

		G722Context decoderCtx = new G722Context();

		decoderCtx.ctx = G722JNI.decodeInit(decoderCtx.ctx, mCodecInfo.codecFrameSize, 0);

		return decoderCtx;

	}

	@Override

	public Context initEncoder() {

		G722Context encoderCtx = new G722Context();

		encoderCtx.ctx = G722JNI.encodeInit(encoderCtx.ctx, mCodecInfo.codecFrameSize, 0);

		return encoderCtx;

	}

	@Override

	public void cleanDecoder(Context ctx) {

		G722JNI.decodeRelease(((G722Context)ctx).ctx);

	}

	@Override

	public void cleanEncoder(Context ctx) {

		G722JNI.encodeRelease(((G722Context)ctx).ctx);

	}

	@Override

	public int decode(Context ctx, byte[] indata, int inoffset, int size,

			short[] outsample, int outoffset) {

		return G722JNI.decode(((G722Context)ctx).ctx, indata, inoffset, outsample, outoffset, size);

	}

	@Override

	public int encode(Context ctx, short[] insample, int inoffset, int size,

			byte[] outdata, int outoffset) {

		G722JNI.encode(((G722Context)ctx).ctx, insample, inoffset, outdata, outoffset, size);

		return size;

	}

	@Override

	public CodecInfo getInfo() {

		return mCodecInfo;

	}

	static public void load(){

	}

}