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| author | Djordje Pesut <djordje.pesut@imgtec.com> | 2015-07-20 13:36:19 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2015-07-22 21:51:28 +0200 |
| commit | 5fd81cf6f082ed00878a5898f47550cb1646d219 (patch) | |
| tree | 307a630e3bedb5a186367f08377f5ea3d22b854a /libavcodec/aac_defines.h | |
| parent | 631496e057a203e656d0a952acecf217a83bb26b (diff) | |
| download | ffmpeg-5fd81cf6f082ed00878a5898f47550cb1646d219.tar.gz | |
avcodec: Implementation of AAC_fixed_decoder (PS-module)
Add fixed point implementation.
Signed-off-by: Nedeljko Babic <nedeljko.babic@imgtec.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/aac_defines.h')
| -rw-r--r-- | libavcodec/aac_defines.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/libavcodec/aac_defines.h b/libavcodec/aac_defines.h index 0f3905fe0b..3c45742ee1 100644 --- a/libavcodec/aac_defines.h +++ b/libavcodec/aac_defines.h @@ -35,6 +35,7 @@ #define AAC_RENAME(x) x ## _fixed #define AAC_RENAME_32(x) x ## _fixed_32 #define INTFLOAT int +#define INT64FLOAT int64_t #define SHORTFLOAT int16_t #define AAC_FLOAT SoftFloat #define AAC_SIGNE int @@ -45,9 +46,33 @@ #define Q31(x) (int)((x)*2147483648.0 + 0.5) #define RANGE15(x) x #define GET_GAIN(x, y) (-(y) << (x)) + 1024 +#define AAC_MUL16(x, y) (int)(((int64_t)(x) * (y) + 0x8000) >> 16) #define AAC_MUL26(x, y) (int)(((int64_t)(x) * (y) + 0x2000000) >> 26) #define AAC_MUL30(x, y) (int)(((int64_t)(x) * (y) + 0x20000000) >> 30) #define AAC_MUL31(x, y) (int)(((int64_t)(x) * (y) + 0x40000000) >> 31) +#define AAC_MADD28(x, y, a, b) (int)((((int64_t)(x) * (y)) + \ + ((int64_t)(a) * (b)) + \ + 0x8000000) >> 28) +#define AAC_MADD30(x, y, a, b) (int)((((int64_t)(x) * (y)) + \ + ((int64_t)(a) * (b)) + \ + 0x20000000) >> 30) +#define AAC_MADD30_V8(x, y, a, b, c, d, e, f) (int)((((int64_t)(x) * (y)) + \ + ((int64_t)(a) * (b)) + \ + ((int64_t)(c) * (d)) + \ + ((int64_t)(e) * (f)) + \ + 0x20000000) >> 30) +#define AAC_MSUB30(x, y, a, b) (int)((((int64_t)(x) * (y)) - \ + ((int64_t)(a) * (b)) + \ + 0x20000000) >> 30) +#define AAC_MSUB30_V8(x, y, a, b, c, d, e, f) (int)((((int64_t)(x) * (y)) + \ + ((int64_t)(a) * (b)) - \ + ((int64_t)(c) * (d)) - \ + ((int64_t)(e) * (f)) + \ + 0x20000000) >> 30) +#define AAC_MSUB31_V3(x, y, z) (int)((((int64_t)(x) * (z)) - \ + ((int64_t)(y) * (z)) + \ + 0x40000000) >> 31) +#define AAC_HALF_SUM(x, y) (x) >> 1 + (y) >> 1 #define AAC_SRA_R(x, y) (int)(((x) + (1 << ((y) - 1))) >> (y)) #else @@ -58,6 +83,7 @@ #define AAC_RENAME(x) x #define AAC_RENAME_32(x) x #define INTFLOAT float +#define INT64FLOAT float #define SHORTFLOAT float #define AAC_FLOAT float #define AAC_SIGNE unsigned @@ -68,9 +94,19 @@ #define Q31(x) x #define RANGE15(x) (32768.0 * (x)) #define GET_GAIN(x, y) powf((x), -(y)) +#define AAC_MUL16(x, y) ((x) * (y)) #define AAC_MUL26(x, y) ((x) * (y)) #define AAC_MUL30(x, y) ((x) * (y)) #define AAC_MUL31(x, y) ((x) * (y)) +#define AAC_MADD28(x, y, a, b) ((x) * (y) + (a) * (b)) +#define AAC_MADD30(x, y, a, b) ((x) * (y) + (a) * (b)) +#define AAC_MADD30_V8(x, y, a, b, c, d, e, f) ((x) * (y) + (a) * (b) + \ + (c) * (d) + (e) * (f)) +#define AAC_MSUB30(x, y, a, b) ((x) * (y) - (a) * (b)) +#define AAC_MSUB30_V8(x, y, a, b, c, d, e, f) ((x) * (y) + (a) * (b) - \ + (c) * (d) - (e) * (f)) +#define AAC_MSUB31_V3(x, y, z) ((x) - (y)) * (z) +#define AAC_HALF_SUM(x, y) ((x) + (y)) * 0.5f #define AAC_SRA_R(x, y) (x) #endif /* USE_FIXED */ |