byte input[BASE64_IN_CHUNK * 10];
while(input_size = read_chunk(input, BASE64_IN_CHUNK * 10)) {
byte output[BASE64_OUT_CHUNK * 10];
byte input[BASE64_IN_CHUNK * 10];
while(input_size = read_chunk(input, BASE64_IN_CHUNK * 10)) {
byte output[BASE64_OUT_CHUNK * 10];