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118 lines
5.1 KiB
118 lines
5.1 KiB
/* |
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* AAC defines |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#ifndef AVCODEC_AAC_DEFINES_H |
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#define AVCODEC_AAC_DEFINES_H |
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#ifndef USE_FIXED |
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#define USE_FIXED 0 |
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#endif |
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#if USE_FIXED |
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#include "libavutil/softfloat.h" |
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#define FFT_FLOAT 0 |
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#define FFT_FIXED_32 1 |
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#define AAC_RENAME(x) x ## _fixed |
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#define AAC_RENAME_32(x) x ## _fixed_32 |
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#define AAC_KBD_RENAME(x) aac_ ## x ## _fixed |
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typedef int INTFLOAT; |
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typedef unsigned UINTFLOAT; ///< Equivalent to INTFLOAT, Used as temporal cast to avoid undefined sign overflow operations. |
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typedef int64_t INT64FLOAT; |
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typedef int16_t SHORTFLOAT; |
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typedef SoftFloat AAC_FLOAT; |
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typedef int AAC_SIGNE; |
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#define FIXR(a) ((int)((a) * 1 + 0.5)) |
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#define FIXR10(a) ((int)((a) * 1024.0 + 0.5)) |
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#define Q23(a) (int)((a) * 8388608.0 + 0.5) |
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#define Q30(x) (int)((x)*1073741824.0 + 0.5) |
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#define Q31(x) (int)((x)*2147483648.0 + 0.5) |
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#define RANGE15(x) x |
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#define GET_GAIN(x, y) (-(y) * (1 << (x))) + 1024 |
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#define AAC_MUL16(x, y) (int)(((int64_t)(x) * (y) + 0x8000) >> 16) |
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#define AAC_MUL26(x, y) (int)(((int64_t)(x) * (y) + 0x2000000) >> 26) |
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#define AAC_MUL30(x, y) (int)(((int64_t)(x) * (y) + 0x20000000) >> 30) |
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#define AAC_MUL31(x, y) (int)(((int64_t)(x) * (y) + 0x40000000) >> 31) |
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#define AAC_MADD28(x, y, a, b) (int)((((int64_t)(x) * (y)) + \ |
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((int64_t)(a) * (b)) + \ |
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0x8000000) >> 28) |
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#define AAC_MADD30(x, y, a, b) (int)((((int64_t)(x) * (y)) + \ |
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((int64_t)(a) * (b)) + \ |
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0x20000000) >> 30) |
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#define AAC_MADD30_V8(x, y, a, b, c, d, e, f) (int)((((int64_t)(x) * (y)) + \ |
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((int64_t)(a) * (b)) + \ |
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((int64_t)(c) * (d)) + \ |
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((int64_t)(e) * (f)) + \ |
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0x20000000) >> 30) |
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#define AAC_MSUB30(x, y, a, b) (int)((((int64_t)(x) * (y)) - \ |
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((int64_t)(a) * (b)) + \ |
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0x20000000) >> 30) |
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#define AAC_MSUB30_V8(x, y, a, b, c, d, e, f) (int)((((int64_t)(x) * (y)) + \ |
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((int64_t)(a) * (b)) - \ |
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((int64_t)(c) * (d)) - \ |
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((int64_t)(e) * (f)) + \ |
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0x20000000) >> 30) |
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#define AAC_MSUB31_V3(x, y, z) (int)((((int64_t)(x) * (z)) - \ |
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((int64_t)(y) * (z)) + \ |
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0x40000000) >> 31) |
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#define AAC_HALF_SUM(x, y) (((x) >> 1) + ((y) >> 1)) |
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#define AAC_SRA_R(x, y) (int)(((x) + (1 << ((y) - 1))) >> (y)) |
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#else |
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#define FFT_FLOAT 1 |
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#define FFT_FIXED_32 0 |
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#define AAC_RENAME(x) x |
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#define AAC_RENAME_32(x) x |
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#define AAC_KBD_RENAME(x) ff_aac_ ## x |
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typedef float INTFLOAT; |
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typedef float UINTFLOAT; |
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typedef float INT64FLOAT; |
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typedef float SHORTFLOAT; |
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typedef float AAC_FLOAT; |
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typedef unsigned AAC_SIGNE; |
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#define FIXR(x) ((float)(x)) |
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#define FIXR10(x) ((float)(x)) |
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#define Q23(x) ((float)(x)) |
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#define Q30(x) ((float)(x)) |
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#define Q31(x) ((float)(x)) |
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#define RANGE15(x) (32768.0 * (x)) |
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#define GET_GAIN(x, y) powf((x), -(y)) |
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#define AAC_MUL16(x, y) ((x) * (y)) |
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#define AAC_MUL26(x, y) ((x) * (y)) |
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#define AAC_MUL30(x, y) ((x) * (y)) |
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#define AAC_MUL31(x, y) ((x) * (y)) |
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#define AAC_MADD28(x, y, a, b) ((x) * (y) + (a) * (b)) |
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#define AAC_MADD30(x, y, a, b) ((x) * (y) + (a) * (b)) |
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#define AAC_MADD30_V8(x, y, a, b, c, d, e, f) ((x) * (y) + (a) * (b) + \ |
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(c) * (d) + (e) * (f)) |
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#define AAC_MSUB30(x, y, a, b) ((x) * (y) - (a) * (b)) |
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#define AAC_MSUB30_V8(x, y, a, b, c, d, e, f) ((x) * (y) + (a) * (b) - \ |
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(c) * (d) - (e) * (f)) |
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#define AAC_MSUB31_V3(x, y, z) ((x) - (y)) * (z) |
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#define AAC_HALF_SUM(x, y) ((x) + (y)) * 0.5f |
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#define AAC_SRA_R(x, y) (x) |
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#endif /* USE_FIXED */ |
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#endif /* AVCODEC_AAC_DEFINES_H */
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