diff options
Diffstat (limited to 'ac3dec/dither.c')
| -rw-r--r-- | ac3dec/dither.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/ac3dec/dither.c b/ac3dec/dither.c index 31e74f6..079c04d 100644 --- a/ac3dec/dither.c +++ b/ac3dec/dither.c @@ -31,7 +31,7 @@ #include "dither.h" -const uint_16 dither_lut[256] = +const uint16_t dither_lut[256] = { 0x0000, 0xa011, 0xe033, 0x4022, 0x6077, 0xc066, 0x8044, 0x2055, 0xc0ee, 0x60ff, 0x20dd, 0x80cc, 0xa099, 0x0088, 0x40aa, 0xe0bb, @@ -67,7 +67,7 @@ const uint_16 dither_lut[256] = 0x8bf4, 0x2be5, 0x6bc7, 0xcbd6, 0xeb83, 0x4b92, 0x0bb0, 0xaba1 }; -uint_16 lfsr_state = 1; +uint16_t lfsr_state = 1; // // see dither_gen (inline-able) in dither.h @@ -89,18 +89,17 @@ uint_16 lfsr_state = 1; * */ -uint_16 dither_gen(void) +uint16_t dither_gen(void) { int i; - uint_32 state; + uint32_t state; //explicitly bring the state into a local var as gcc > 3.0? //doesn't know how to optimize out the stores state = lfsr_state; //Generate eight pseudo random bits - for(i=0;i<8;i++) - { + for(i=0;i<8;i++) { state <<= 1; if(state & 0x10000) @@ -109,7 +108,7 @@ uint_16 dither_gen(void) lfsr_state = state; - return (((((sint_32)state<<8)>>8) * (sint_32) (0.707106 * 256.0))>>16); + return (((((int32_t)state<<8)>>8) * (int32_t) (0.707106 * 256.0))>>16); } #endif |