mirror of
https://github.com/mpv-player/mpv
synced 2024-12-12 18:06:18 +00:00
30 lines
595 B
C
30 lines
595 B
C
// code from xanim sources...
|
|
// (I hope that not hurt copyright :o)
|
|
|
|
#define xaLONG long
|
|
#define xaULONG unsigned long
|
|
#define xaBYTE char
|
|
#define xaUBYTE unsigned char
|
|
|
|
xaULONG long xa_alaw_2_sign[256];
|
|
|
|
void Gen_aLaw_2_Signed()
|
|
{ xaULONG i;
|
|
for(i=0;i<256;i++)
|
|
{ xaUBYTE data = (xaUBYTE)(i);
|
|
xaLONG d, t, seg;
|
|
|
|
data ^= 0x55;
|
|
|
|
t = (data & 0xf) << 4;
|
|
seg = (data & 0x70) >> 4;
|
|
if (seg == 0) t += 8;
|
|
else if (seg == 1) t += 0x108;
|
|
else { t += 108; t <<= seg - 1; }
|
|
|
|
d = (data & 0x80)?(t):(-t);
|
|
xa_alaw_2_sign[i] = (xaULONG)((xaULONG)(d) & 0xffff);
|
|
}
|
|
}
|
|
|