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https://github.com/FFmpeg/FFmpeg.git
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fc5d22abe4
The floating point kbd tables for 120 and 960 samples are only used by the floating point decoder whereas the fixed point kbd tables for 128 and 1024 samples are only used by the fixed point AAC decoder. So move these tables to their only users. This ensures that they are not accidentally used somewhere else without ensuring that initializing these tables stays thread-safe (as it is now because the only place from where they are initialized is guarded by an AVOnce). Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
119 lines
5.1 KiB
C
119 lines
5.1 KiB
C
/*
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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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