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Compression Source Code
Version 1.10 12/01/02 H-17
Routine Description:
Count the frequencies for the Extra Set
Arguments: (VOID)
Returns: (VOID)
--*/
{
INT32 i, k, n, Count;
for (i = 0; i < NT; i++) {
mTFreq[i] = 0;
}
n = NC;
while (n > 0 && mCLen[n - 1] == 0) {
n--;
}
i = 0;
while (i < n) {
k = mCLen[i++];
if (k == 0) {
Count = 1;
while (i < n && mCLen[i] == 0) {
i++;
Count++;
}
if (Count <= 2) {
mTFreq[0] = (UINT16)(mTFreq[0] + Count);
} else if (Count <= 18) {
mTFreq[1]++;
} else if (Count == 19) {
mTFreq[0]++;
mTFreq[1]++;
} else {
mTFreq[2]++;
}
} else {
mTFreq[k + 2]++;
}
}
}
STATIC
VOID
WritePTLen (
IN INT32 n,
IN INT32 nbit,
IN INT32 Special
)
/*++
Routine Description:
Outputs the code length array for the Extra Set or the Position Set.