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86 lines
2.7 KiB
86 lines
2.7 KiB
;****************************************************************************** |
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;* SIMD optimized AAC encoder DSP functions |
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;* |
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;* Copyright (C) 2016 Rostislav Pehlivanov <atomnuker@gmail.com> |
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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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%include "libavutil/x86/x86util.asm" |
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SECTION_RODATA |
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float_abs_mask: times 4 dd 0x7fffffff |
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SECTION .text |
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;******************************************************************* |
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;void ff_abs_pow34(float *out, const float *in, const int size); |
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;******************************************************************* |
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INIT_XMM sse |
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cglobal abs_pow34, 3, 3, 3, out, in, size |
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mova m2, [float_abs_mask] |
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shl sized, 2 |
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add inq, sizeq |
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add outq, sizeq |
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neg sizeq |
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.loop: |
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andps m0, m2, [inq+sizeq] |
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sqrtps m1, m0 |
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mulps m0, m1 |
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sqrtps m0, m0 |
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mova [outq+sizeq], m0 |
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add sizeq, mmsize |
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jl .loop |
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RET |
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;******************************************************************* |
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;void ff_aac_quantize_bands(int *out, const float *in, const float *scaled, |
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; int size, int is_signed, int maxval, const float Q34, |
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; const float rounding) |
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;******************************************************************* |
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INIT_XMM sse2 |
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cglobal aac_quantize_bands, 5, 5, 6, out, in, scaled, size, is_signed, maxval, Q34, rounding |
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%if UNIX64 == 0 |
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movss m0, Q34m |
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movss m1, roundingm |
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cvtsi2ss m3, dword maxvalm |
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%else |
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cvtsi2ss m3, maxvald |
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%endif |
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shufps m0, m0, 0 |
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shufps m1, m1, 0 |
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shufps m3, m3, 0 |
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shl is_signedd, 31 |
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movd m4, is_signedd |
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shufps m4, m4, 0 |
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shl sized, 2 |
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add inq, sizeq |
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add outq, sizeq |
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add scaledq, sizeq |
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neg sizeq |
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.loop: |
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mulps m2, m0, [scaledq+sizeq] |
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addps m2, m1 |
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minps m2, m3 |
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andps m5, m4, [inq+sizeq] |
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orps m2, m5 |
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cvttps2dq m2, m2 |
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mova [outq+sizeq], m2 |
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add sizeq, mmsize |
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jl .loop |
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RET
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