function encodeBlock(input, inputOffset, output, outputOffset) {
	output[outputOffset + 0] = Alphabet[input[inputOffset + 0] >> 3];
	output[outputOffset + 1] = Alphabet[((input[inputOffset + 0] & 0x07) << 2) | (input[inputOffset + 1] >> 6)];
	output[outputOffset + 2] = Alphabet[(input[inputOffset + 1] & 0x3E) >> 1];
	output[outputOffset + 3] = Alphabet[((input[inputOffset + 1] & 0x01) << 4) | (input[inputOffset + 2] >> 4)];
	output[outputOffset + 4] = Alphabet[((input[inputOffset + 2] & 0x0F) << 1) | (input[inputOffset + 3] >> 7)];
	output[outputOffset + 5] = Alphabet[(input[inputOffset + 3] & 0x7F) >> 2];
	output[outputOffset + 6] = Alphabet[((input[inputOffset + 3] & 0x03) << 3) | (input[inputOffset + 4] >> 5)];
	output[outputOffset + 7] = Alphabet[input[inputOffset + 4] & 0x1F];
}
function encodeBlock(input, inputOffset, output, outputOffset) {
	output[outputOffset + 0] = Alphabet[input[inputOffset + 0] >> 3];
	output[outputOffset + 1] = Alphabet[((input[inputOffset + 0] & 0x07) << 2) | (input[inputOffset + 1] >> 6)];
	output[outputOffset + 2] = Alphabet[(input[inputOffset + 1] & 0x3E) >> 1];
	output[outputOffset + 3] = Alphabet[((input[inputOffset + 1] & 0x01) << 4) | (input[inputOffset + 2] >> 4)];
	output[outputOffset + 4] = Alphabet[((input[inputOffset + 2] & 0x0F) << 1) | (input[inputOffset + 3] >> 7)];
	output[outputOffset + 5] = Alphabet[(input[inputOffset + 3] & 0x7F) >> 2];
	output[outputOffset + 6] = Alphabet[((input[inputOffset + 3] & 0x03) << 3) | (input[inputOffset + 4] >> 5)];
	output[outputOffset + 7] = Alphabet[input[inputOffset + 4] & 0x1F];
}
function encodeBlock ( input , inputOffset , output , outputOffset ) { output [ outputOffset + 0 ] = Alphabet [ input [ inputOffset + 0 ] >> 3 ] ; output [ outputOffset + 1 ] = Alphabet [ ( ( input [ inputOffset + 0 ] & 0x07 ) << 2 ) | ( input [ inputOffset + 1 ] >> 6 ) ] ; output [ outputOffset + 2 ] = Alphabet [ ( input [ inputOffset + 1 ] & 0x3E ) >> 1 ] ; output [ outputOffset + 3 ] = Alphabet [ ( ( input [ inputOffset + 1 ] & 0x01 ) << 4 ) | ( input [ inputOffset + 2 ] >> 4 ) ] ; output [ outputOffset + 4 ] = Alphabet [ ( ( input [ inputOffset + 2 ] & 0x0F ) << 1 ) | ( input [ inputOffset + 3 ] >> 7 ) ] ; output [ outputOffset + 5 ] = Alphabet [ ( input [ inputOffset + 3 ] & 0x7F ) >> 2 ] ; output [ outputOffset + 6 ] = Alphabet [ ( ( input [ inputOffset + 3 ] & 0x03 ) << 3 ) | ( input [ inputOffset + 4 ] >> 5 ) ] ; output [ outputOffset + 7 ] = Alphabet [ input [ inputOffset + 4 ] & 0x1F ] ; }
region encode
region encode