Thread: Bit Masking

Below is a better description!!!

To put it better...

Code:

unsigned int flanged=0;
short int x=0;
short int y=0;
short int inputL, inputR;

inputL=readAudio();
inputR=readAudio();

flanged = inputL << 16;
flanged |= inputR;
x = flanged >> 16;
y &= flanged;

writeAudio(x);
writeAudio(y);

But this is not working! ...there is sound in the right channel output, but zero in the left!

Ha!!! ...Im being an idiot (probably because i've been staring at my screen for over 10hours now)!!!

...why Im trying to extract information and'ing with the variable I don't have a clue!!!! wot was i thinking!!!! ...well... for anyone that would ever want to do this! here is the solution!

Code:

short int inputL;
short int inputR;

unsigned int flanged=0;
short int x=0;
short int y=0;

//stuff the two values into the int
flanged = inputL<<16;
flanged = inputR | flanged;
// extract the information
x = flanged >> 16;
y = flanged & 0x00000000FFFFFFFF;
//print result
printf("L: %5d, R: %5d, x: %5d, y: %5d\n",inputL, inputR, x, y);