mirror of https://github.com/FFmpeg/FFmpeg.git
Between 1.5 and 2.5 times faster Reviewed-by: Michael Niedermayer <michael@niedermayer.cc> Signed-off-by: James Almer <jamrial@gmail.com>pull/161/head
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9dcaae70f2
6 changed files with 279 additions and 4 deletions
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;****************************************************************************** |
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;* SIMD optimized MPEG-4 Parametric Stereo decoding functions |
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;* |
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;* Copyright (C) 2015 James Almer |
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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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|
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%include "libavutil/x86/x86util.asm" |
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SECTION_RODATA |
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ps_p1m1p1m1: dd 0, 0x80000000, 0, 0x80000000 |
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SECTION_TEXT |
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;************************************************************************* |
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;void ff_ps_add_squares_<opt>(float *dst, const float (*src)[2], int n); |
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;************************************************************************* |
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%macro PS_ADD_SQUARES 1 |
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cglobal ps_add_squares, 3, 3, %1, dst, src, n |
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.loop: |
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movaps m0, [srcq] |
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movaps m1, [srcq+mmsize] |
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mulps m0, m0 |
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mulps m1, m1 |
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%if cpuflag(sse3) |
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haddps m0, m1 |
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%else |
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movaps m3, m0 |
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movaps m4, m1 |
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shufps m3, m3, q0301 |
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shufps m4, m4, q0301 |
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addps m0, m3 |
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addps m1, m4 |
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shufps m0, m1, q2020 |
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%endif |
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addps m0, [dstq] |
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movaps [dstq], m0 |
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add dstq, mmsize |
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add srcq, mmsize*2 |
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sub nd, mmsize/4 |
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jg .loop |
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REP_RET |
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%endmacro |
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INIT_XMM sse |
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PS_ADD_SQUARES 3 |
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INIT_XMM sse3 |
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PS_ADD_SQUARES 5 |
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;******************************************************************* |
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;void ff_ps_mul_pair_single_sse(float (*dst)[2], float (*src0)[2], |
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; float *src1, int n); |
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;******************************************************************* |
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INIT_XMM sse |
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cglobal ps_mul_pair_single, 4, 5, 4, dst, src1, src2, n |
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xor r4q, r4q |
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.loop: |
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movu m0, [src1q+r4q] |
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movu m1, [src1q+r4q+mmsize] |
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mova m2, [src2q] |
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mova m3, m2 |
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unpcklps m2, m2 |
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unpckhps m3, m3 |
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mulps m0, m2 |
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mulps m1, m3 |
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mova [dstq+r4q], m0 |
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mova [dstq+r4q+mmsize], m1 |
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add src2q, mmsize |
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add r4q, mmsize*2 |
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sub nd, mmsize/4 |
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jg .loop |
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REP_RET |
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;*********************************************************************** |
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;void ff_ps_stereo_interpolate_sse3(float (*l)[2], float (*r)[2], |
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; float h[2][4], float h_step[2][4], |
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; int len); |
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;*********************************************************************** |
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INIT_XMM sse3 |
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cglobal ps_stereo_interpolate, 5, 5, 6, l, r, h, h_step, n |
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movaps m0, [hq] |
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movaps m1, [h_stepq] |
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cmp nd, 0 |
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jle .ret |
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shl nd, 3 |
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add lq, nq |
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add rq, nq |
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neg nq |
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align 16 |
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.loop: |
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addps m0, m1 |
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movddup m2, [lq+nq] |
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movddup m3, [rq+nq] |
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movaps m4, m0 |
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movaps m5, m0 |
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unpcklps m4, m4 |
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unpckhps m5, m5 |
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mulps m2, m4 |
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mulps m3, m5 |
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addps m2, m3 |
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movsd [lq+nq], m2 |
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movhps [rq+nq], m2 |
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add nq, 8 |
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jl .loop |
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.ret: |
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REP_RET |
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;******************************************************************* |
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;void ff_ps_hybrid_analysis_<opt>(float (*out)[2], float (*in)[2], |
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; const float (*filter)[8][2], |
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; int stride, int n); |
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;******************************************************************* |
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%macro PS_HYBRID_ANALYSIS_LOOP 3 |
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movu %1, [inq+mmsize*%3] |
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movu m1, [inq+mmsize*(5-%3)+8] |
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%if cpuflag(sse3) |
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pshufd %2, %1, q2301 |
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pshufd m4, m1, q0123 |
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pshufd m1, m1, q1032 |
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pshufd m2, [filterq+nq+mmsize*%3], q2301 |
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addsubps %2, m4 |
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addsubps %1, m1 |
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%else |
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mova m2, [filterq+nq+mmsize*%3] |
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mova %2, %1 |
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mova m4, m1 |
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shufps %2, %2, q2301 |
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shufps m4, m4, q0123 |
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shufps m1, m1, q1032 |
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shufps m2, m2, q2301 |
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xorps m4, m7 |
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xorps m1, m7 |
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subps %2, m4 |
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subps %1, m1 |
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%endif |
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mulps %2, m2 |
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mulps %1, m2 |
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%if %3 |
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addps m3, %2 |
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addps m0, %1 |
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%endif |
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%endmacro |
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%macro PS_HYBRID_ANALYSIS 0 |
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cglobal ps_hybrid_analysis, 5, 5, 8, out, in, filter, stride, n |
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%if cpuflag(sse3) |
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%define MOVH movsd |
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%else |
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%define MOVH movlps |
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%endif |
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shl strided, 3 |
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shl nd, 6 |
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add filterq, nq |
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neg nq |
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mova m7, [ps_p1m1p1m1] |
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align 16 |
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.loop: |
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PS_HYBRID_ANALYSIS_LOOP m0, m3, 0 |
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PS_HYBRID_ANALYSIS_LOOP m5, m6, 1 |
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PS_HYBRID_ANALYSIS_LOOP m5, m6, 2 |
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%if cpuflag(sse3) |
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pshufd m3, m3, q2301 |
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xorps m0, m7 |
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hsubps m3, m0 |
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pshufd m1, m3, q0020 |
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pshufd m3, m3, q0031 |
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addps m1, m3 |
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movsd m2, [inq+6*8] |
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%else |
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mova m1, m3 |
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mova m2, m0 |
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shufps m1, m1, q2301 |
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shufps m2, m2, q2301 |
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subps m1, m3 |
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addps m2, m0 |
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unpcklps m3, m1, m2 |
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unpckhps m1, m2 |
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addps m1, m3 |
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movu m2, [inq+6*8] ; faster than movlps and no risk of overread |
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%endif |
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movss m3, [filterq+nq+8*6] |
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SPLATD m3 |
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mulps m2, m3 |
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addps m1, m2 |
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MOVH [outq], m1 |
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add outq, strideq |
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add nq, 64 |
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jl .loop |
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REP_RET |
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%endmacro |
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INIT_XMM sse |
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PS_HYBRID_ANALYSIS |
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INIT_XMM sse3 |
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PS_HYBRID_ANALYSIS |
@ -0,0 +1,55 @@ |
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/*
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* SIMD optimized MPEG-4 Parametric Stereo decoding functions |
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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 "config.h" |
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#include "libavutil/x86/cpu.h" |
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#include "libavutil/attributes.h" |
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#include "libavcodec/aacpsdsp.h" |
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void ff_ps_add_squares_sse (float *dst, const float (*src)[2], int n); |
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void ff_ps_add_squares_sse3 (float *dst, const float (*src)[2], int n); |
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void ff_ps_mul_pair_single_sse (float (*dst)[2], float (*src0)[2], |
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float *src1, int n); |
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void ff_ps_hybrid_analysis_sse (float (*out)[2], float (*in)[2], |
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const float (*filter)[8][2], |
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int stride, int n); |
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void ff_ps_hybrid_analysis_sse3(float (*out)[2], float (*in)[2], |
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const float (*filter)[8][2], |
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int stride, int n); |
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void ff_ps_stereo_interpolate_sse3(float (*l)[2], float (*r)[2], |
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float h[2][4], float h_step[2][4], |
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int len); |
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av_cold void ff_psdsp_init_x86(PSDSPContext *s) |
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{ |
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int cpu_flags = av_get_cpu_flags(); |
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if (EXTERNAL_SSE(cpu_flags)) { |
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s->add_squares = ff_ps_add_squares_sse; |
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s->mul_pair_single = ff_ps_mul_pair_single_sse; |
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s->hybrid_analysis = ff_ps_hybrid_analysis_sse; |
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} |
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if (EXTERNAL_SSE3(cpu_flags)) { |
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s->add_squares = ff_ps_add_squares_sse3; |
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s->stereo_interpolate[0] = ff_ps_stereo_interpolate_sse3; |
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s->hybrid_analysis = ff_ps_hybrid_analysis_sse3; |
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} |
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} |
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