diff options
Diffstat (limited to 'media/libstagefright/codecs/amrwbenc/src/oper_32b.c')
| -rw-r--r-- | media/libstagefright/codecs/amrwbenc/src/oper_32b.c | 66 |
1 files changed, 33 insertions, 33 deletions
diff --git a/media/libstagefright/codecs/amrwbenc/src/oper_32b.c b/media/libstagefright/codecs/amrwbenc/src/oper_32b.c index 27cad76..e6f80d0 100644 --- a/media/libstagefright/codecs/amrwbenc/src/oper_32b.c +++ b/media/libstagefright/codecs/amrwbenc/src/oper_32b.c @@ -56,9 +56,9 @@ __inline void VO_L_Extract (Word32 L_32, Word16 *hi, Word16 *lo) { - *hi = (Word16)(L_32 >> 16); - *lo = (Word16)((L_32 & 0xffff) >> 1); - return; + *hi = (Word16)(L_32 >> 16); + *lo = (Word16)((L_32 & 0xffff) >> 1); + return; } /***************************************************************************** @@ -84,11 +84,11 @@ __inline void VO_L_Extract (Word32 L_32, Word16 *hi, Word16 *lo) Word32 L_Comp (Word16 hi, Word16 lo) { - Word32 L_32; + Word32 L_32; - L_32 = L_deposit_h (hi); + L_32 = L_deposit_h (hi); - return (L_mac (L_32, lo, 1)); /* = hi<<16 + lo<<1 */ + return (L_mac (L_32, lo, 1)); /* = hi<<16 + lo<<1 */ } /***************************************************************************** @@ -113,13 +113,13 @@ Word32 L_Comp (Word16 hi, Word16 lo) __inline Word32 Mpy_32 (Word16 hi1, Word16 lo1, Word16 hi2, Word16 lo2) { - Word32 L_32; - L_32 = (hi1 * hi2); - L_32 += (hi1 * lo2) >> 15; - L_32 += (lo1 * hi2) >> 15; - L_32 <<= 1; + Word32 L_32; + L_32 = (hi1 * hi2); + L_32 += (hi1 * lo2) >> 15; + L_32 += (lo1 * hi2) >> 15; + L_32 <<= 1; - return (L_32); + return (L_32); } /***************************************************************************** @@ -142,12 +142,12 @@ __inline Word32 Mpy_32 (Word16 hi1, Word16 lo1, Word16 hi2, Word16 lo2) __inline Word32 Mpy_32_16 (Word16 hi, Word16 lo, Word16 n) { - Word32 L_32; + Word32 L_32; - L_32 = (hi * n)<<1; - L_32 += (((lo * n)>>15)<<1); + L_32 = (hi * n)<<1; + L_32 += (((lo * n)>>15)<<1); - return (L_32); + return (L_32); } /***************************************************************************** @@ -194,30 +194,30 @@ __inline Word32 Mpy_32_16 (Word16 hi, Word16 lo, Word16 n) Word32 Div_32 (Word32 L_num, Word16 denom_hi, Word16 denom_lo) { - Word16 approx, hi, lo, n_hi, n_lo; - Word32 L_32; + Word16 approx, hi, lo, n_hi, n_lo; + Word32 L_32; - /* First approximation: 1 / L_denom = 1/denom_hi */ + /* First approximation: 1 / L_denom = 1/denom_hi */ - approx = div_s ((Word16) 0x3fff, denom_hi); + approx = div_s ((Word16) 0x3fff, denom_hi); - /* 1/L_denom = approx * (2.0 - L_denom * approx) */ + /* 1/L_denom = approx * (2.0 - L_denom * approx) */ - L_32 = Mpy_32_16 (denom_hi, denom_lo, approx); + L_32 = Mpy_32_16 (denom_hi, denom_lo, approx); - L_32 = L_sub ((Word32) 0x7fffffffL, L_32); - hi = L_32 >> 16; - lo = (L_32 & 0xffff) >> 1; + L_32 = L_sub ((Word32) 0x7fffffffL, L_32); + hi = L_32 >> 16; + lo = (L_32 & 0xffff) >> 1; - L_32 = Mpy_32_16 (hi, lo, approx); + L_32 = Mpy_32_16 (hi, lo, approx); - /* L_num * (1/L_denom) */ - hi = L_32 >> 16; - lo = (L_32 & 0xffff) >> 1; - VO_L_Extract (L_num, &n_hi, &n_lo); - L_32 = Mpy_32 (n_hi, n_lo, hi, lo); - L_32 = L_shl2(L_32, 2); + /* L_num * (1/L_denom) */ + hi = L_32 >> 16; + lo = (L_32 & 0xffff) >> 1; + VO_L_Extract (L_num, &n_hi, &n_lo); + L_32 = Mpy_32 (n_hi, n_lo, hi, lo); + L_32 = L_shl2(L_32, 2); - return (L_32); + return (L_32); } |