Android MediaCode request API level 16

public class MyTextureView extends TextureView implements  TextureView.SurfaceTextureListener{

    private static  final String MIME_TYPE = "video/avc";
    private static final String TAG = "MyTextureView" ;
    private MediaCodec decode;

    public MyTextureView
 
(Context context, AttributeSet attrs) {
        super(context, attrs);
        setSurfaceTextureListener(this);
    }

    private void init(Surface surface, int width , int height) {
        Log.e(TAG, "PreviewThread: gou zhao");
        try {
            decode = MediaCodec.createDecoderByType(MIME_TYPE);
        } catch
 
 (IOException e) {
            e.printStackTrace();
        }

        if (decode==null) {
            Log.e(TAG, "decode is null ");
        }

        int frameRate = MainApplication.getApplication().getDeviceSettingInfo().getFrontRate();
        final MediaFormat format = MediaFormat.createVideoFormat(MIME_TYPE, width, height);
        format.setInteger(MediaFormat.KEY_BIT_RATE,  6000
 
);
        format.setInteger(MediaFormat.KEY_FRAME_RATE, frameRate>0?frameRate:30);
        format.setInteger(MediaFormat.KEY_I_FRAME_INTERVAL, 32);
        format.setInteger(MediaFormat.KEY_MAX_INPUT_SIZE, 0);

        byte[] header_sps = {0, 0, 0, 1, 103, 66, 0 , 41, -115, -115, 64, 80 , 30 , -48 , 15 ,8,-124, 83, -128};

        byte[] header_pps = {0,0 ,0, 1, 104, -54, 67, -56};

        format.setByteBuffer("csd-0", ByteBuffer.wrap(header_sps));
        format.setByteBuffer("csd-1", ByteBuffer.wrap(header_pps));

        decode.configure(format, surface,null,0);
        decode.start();
    }

    @Override
    public void onSurfaceTextureAvailable(SurfaceTexture surface, int width, int height) {
        init(new Surface(surface), width, height);
    }

    @Override
    public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) {
    }

    @Override
    public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) {
        if (decode != null) {
            decode.release();
        }
        return false;
    }

    @Override
    public void onSurfaceTextureUpdated(SurfaceTexture surface) {
    }

    //解碼h264資料
    public void decoderH264(byte[] input, long timestamp) {
        try {
            int length = input.length;
            ByteBuffer[] inputBuffers = decode.getInputBuffers();

            int inputBufferIndex = decode.dequeueInputBuffer(0);
            Log.i(TAG, "inputBufferIndex: " +inputBufferIndex + ", in buf len=" +inputBuffers.length);
            if (inputBufferIndex >= 0) {
                ByteBuffer inputBuffer = inputBuffers[inputBufferIndex];
                inputBuffer.clear();
                try{
                    inputBuffer.put(input, 0, length);
                }catch (Exception e){
                    e.printStackTrace();
                }
                decode.queueInputBuffer(inputBufferIndex, 0, length, 0, 0);
            }
            MediaCodec.BufferInfo bufferInfo = new MediaCodec.BufferInfo();


            int outputBufferIndex = decode.dequeueOutputBuffer(bufferInfo, 0);
            Log.w(TAG, "outputBufferIndex=" +outputBufferIndex + ", out buf len=" + decode.getOutputBuffers().length);
            while (outputBufferIndex >= 0) {
                //decode.releaseOutputBuffer(outputBufferIndex, true);
                decode.releaseOutputBuffer(outputBufferIndex, timestamp);
                outputBufferIndex = decode.dequeueOutputBuffer(bufferInfo, 0);
            }
        } catch (Throwable t) {
            t.printStackTrace();
        }
    }
}