mirror of https://github.com/FFmpeg/FFmpeg.git
Diego Biurrun
9 years ago
parent
4d13bcceb9
commit
1a094af638
20 changed files with 463 additions and 243 deletions
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/*
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* This file is part of Libav. |
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* |
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* Libav 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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* Libav 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 Libav; 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/attributes.h" |
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#include "libavutil/cpu.h" |
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#include "libavutil/aarch64/cpu.h" |
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#include "libavcodec/fft.h" |
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void ff_imdct_calc_neon(FFTContext *s, FFTSample *output, const FFTSample *input); |
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void ff_imdct_half_neon(FFTContext *s, FFTSample *output, const FFTSample *input); |
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void ff_mdct_calc_neon(FFTContext *s, FFTSample *output, const FFTSample *input); |
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av_cold void ff_mdct_init_aarch64(FFTContext *s) |
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{ |
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int cpu_flags = av_get_cpu_flags(); |
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if (have_neon(cpu_flags)) { |
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s->imdct_calc = ff_imdct_calc_neon; |
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s->imdct_half = ff_imdct_half_neon; |
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s->mdct_calc = ff_mdct_calc_neon; |
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s->mdct_permutation = FF_MDCT_PERM_INTERLEAVE; |
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} |
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} |
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@ -0,0 +1,40 @@ |
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/*
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* This file is part of Libav. |
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* |
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* Libav 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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* Libav 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 Libav; 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/attributes.h" |
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#include "libavutil/cpu.h" |
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#include "libavutil/arm/cpu.h" |
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#define FFT_FLOAT 0 |
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#include "libavcodec/fft.h" |
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void ff_mdct_fixed_calc_neon(FFTContext *s, FFTSample *o, const FFTSample *i); |
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void ff_mdct_fixed_calcw_neon(FFTContext *s, FFTDouble *o, const FFTSample *i); |
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av_cold void ff_mdct_fixed_init_arm(FFTContext *s) |
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{ |
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int cpu_flags = av_get_cpu_flags(); |
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if (have_neon(cpu_flags)) { |
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if (!s->inverse && s->nbits >= 3) { |
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s->mdct_permutation = FF_MDCT_PERM_INTERLEAVE; |
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s->mdct_calc = ff_mdct_fixed_calc_neon; |
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s->mdct_calcw = ff_mdct_fixed_calcw_neon; |
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} |
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} |
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} |
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@ -0,0 +1,47 @@ |
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/*
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* Copyright (c) 2009 Mans Rullgard <mans@mansr.com> |
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* |
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* This file is part of Libav. |
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* |
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* Libav 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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* Libav 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 Libav; 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/attributes.h" |
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#include "libavutil/cpu.h" |
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#include "libavutil/arm/cpu.h" |
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#include "libavcodec/fft.h" |
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void ff_imdct_half_vfp(FFTContext *s, FFTSample *output, const FFTSample *input); |
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void ff_imdct_calc_neon(FFTContext *s, FFTSample *output, const FFTSample *input); |
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void ff_imdct_half_neon(FFTContext *s, FFTSample *output, const FFTSample *input); |
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void ff_mdct_calc_neon(FFTContext *s, FFTSample *output, const FFTSample *input); |
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av_cold void ff_mdct_init_arm(FFTContext *s) |
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{ |
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int cpu_flags = av_get_cpu_flags(); |
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if (have_vfp_vm(cpu_flags)) { |
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s->imdct_half = ff_imdct_half_vfp; |
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} |
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if (have_neon(cpu_flags)) { |
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s->imdct_calc = ff_imdct_calc_neon; |
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s->imdct_half = ff_imdct_half_neon; |
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s->mdct_calc = ff_mdct_calc_neon; |
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s->mdct_permutation = FF_MDCT_PERM_INTERLEAVE; |
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} |
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} |
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@ -0,0 +1,154 @@ |
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/*
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* FFT/IFFT transforms |
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* AltiVec-enabled |
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* Copyright (c) 2009 Loren Merritt |
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* |
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* This file is part of Libav. |
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* |
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* Libav 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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* Libav 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 Libav; 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/cpu.h" |
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#include "libavutil/ppc/cpu.h" |
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#include "libavutil/ppc/types_altivec.h" |
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#include "libavutil/ppc/util_altivec.h" |
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#include "libavcodec/fft.h" |
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/**
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* Do a complex FFT with the parameters defined in ff_fft_init(). |
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* The input data must be permuted before with s->revtab table. |
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* No 1.0 / sqrt(n) normalization is done. |
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* AltiVec-enabled: |
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* This code assumes that the 'z' pointer is 16 bytes-aligned. |
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* It also assumes all FFTComplex are 8 bytes-aligned pairs of floats. |
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*/ |
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void ff_fft_calc_altivec(FFTContext *s, FFTComplex *z); |
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#if HAVE_GNU_AS && HAVE_ALTIVEC && HAVE_BIGENDIAN |
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static void imdct_half_altivec(FFTContext *s, FFTSample *output, const FFTSample *input) |
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{ |
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int j, k; |
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int n = 1 << s->mdct_bits; |
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int n4 = n >> 2; |
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int n8 = n >> 3; |
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int n32 = n >> 5; |
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const uint16_t *revtabj = s->revtab; |
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const uint16_t *revtabk = s->revtab+n4; |
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const vec_f *tcos = (const vec_f*)(s->tcos+n8); |
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const vec_f *tsin = (const vec_f*)(s->tsin+n8); |
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const vec_f *pin = (const vec_f*)(input+n4); |
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vec_f *pout = (vec_f*)(output+n4); |
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/* pre rotation */ |
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k = n32-1; |
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do { |
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vec_f cos,sin,cos0,sin0,cos1,sin1,re,im,r0,i0,r1,i1,a,b,c,d; |
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#define CMULA(p,o0,o1,o2,o3)\ |
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a = pin[ k*2+p]; /* { z[k].re, z[k].im, z[k+1].re, z[k+1].im } */\
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b = pin[-k*2-p-1]; /* { z[-k-2].re, z[-k-2].im, z[-k-1].re, z[-k-1].im } */\
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re = vec_perm(a, b, vcprm(0,2,s0,s2)); /* { z[k].re, z[k+1].re, z[-k-2].re, z[-k-1].re } */\
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im = vec_perm(a, b, vcprm(s3,s1,3,1)); /* { z[-k-1].im, z[-k-2].im, z[k+1].im, z[k].im } */\
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cos = vec_perm(cos0, cos1, vcprm(o0,o1,s##o2,s##o3)); /* { cos[k], cos[k+1], cos[-k-2], cos[-k-1] } */\
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sin = vec_perm(sin0, sin1, vcprm(o0,o1,s##o2,s##o3));\
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r##p = im*cos - re*sin;\
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i##p = re*cos + im*sin; |
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#define STORE2(v,dst)\ |
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j = dst;\
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vec_ste(v, 0, output+j*2);\
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vec_ste(v, 4, output+j*2); |
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#define STORE8(p)\ |
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a = vec_perm(r##p, i##p, vcprm(0,s0,0,s0));\
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b = vec_perm(r##p, i##p, vcprm(1,s1,1,s1));\
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c = vec_perm(r##p, i##p, vcprm(2,s2,2,s2));\
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d = vec_perm(r##p, i##p, vcprm(3,s3,3,s3));\
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STORE2(a, revtabk[ p*2-4]);\
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STORE2(b, revtabk[ p*2-3]);\
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STORE2(c, revtabj[-p*2+2]);\
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STORE2(d, revtabj[-p*2+3]); |
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cos0 = tcos[k]; |
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sin0 = tsin[k]; |
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cos1 = tcos[-k-1]; |
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sin1 = tsin[-k-1]; |
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CMULA(0, 0,1,2,3); |
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CMULA(1, 2,3,0,1); |
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STORE8(0); |
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STORE8(1); |
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revtabj += 4; |
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revtabk -= 4; |
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k--; |
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} while(k >= 0); |
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ff_fft_calc_altivec(s, (FFTComplex*)output); |
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/* post rotation + reordering */ |
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j = -n32; |
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k = n32-1; |
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do { |
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vec_f cos,sin,re,im,a,b,c,d; |
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#define CMULB(d0,d1,o)\ |
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re = pout[o*2];\
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im = pout[o*2+1];\
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cos = tcos[o];\
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sin = tsin[o];\
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d0 = im*sin - re*cos;\
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d1 = re*sin + im*cos; |
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CMULB(a,b,j); |
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CMULB(c,d,k); |
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pout[2*j] = vec_perm(a, d, vcprm(0,s3,1,s2)); |
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pout[2*j+1] = vec_perm(a, d, vcprm(2,s1,3,s0)); |
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pout[2*k] = vec_perm(c, b, vcprm(0,s3,1,s2)); |
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pout[2*k+1] = vec_perm(c, b, vcprm(2,s1,3,s0)); |
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j++; |
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k--; |
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} while(k >= 0); |
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} |
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static void imdct_calc_altivec(FFTContext *s, FFTSample *output, const FFTSample *input) |
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{ |
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int k; |
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int n = 1 << s->mdct_bits; |
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int n4 = n >> 2; |
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int n16 = n >> 4; |
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vec_u32 sign = {1U<<31,1U<<31,1U<<31,1U<<31}; |
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vec_u32 *p0 = (vec_u32*)(output+n4); |
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vec_u32 *p1 = (vec_u32*)(output+n4*3); |
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imdct_half_altivec(s, output + n4, input); |
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for (k = 0; k < n16; k++) { |
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vec_u32 a = p0[k] ^ sign; |
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vec_u32 b = p1[-k-1]; |
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p0[-k-1] = vec_perm(a, a, vcprm(3,2,1,0)); |
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p1[k] = vec_perm(b, b, vcprm(3,2,1,0)); |
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} |
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} |
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#endif /* HAVE_GNU_AS && HAVE_ALTIVEC && HAVE_BIGENDIAN */ |
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av_cold void ff_mdct_init_ppc(FFTContext *s) |
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{ |
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#if HAVE_GNU_AS && HAVE_ALTIVEC && HAVE_BIGENDIAN |
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if (!PPC_ALTIVEC(av_get_cpu_flags())) |
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return; |
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if (s->mdct_bits >= 5) { |
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s->imdct_calc = imdct_calc_altivec; |
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s->imdct_half = imdct_half_altivec; |
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} |
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#endif /* HAVE_GNU_AS && HAVE_ALTIVEC && HAVE_BIGENDIAN */ |
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} |
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@ -0,0 +1,32 @@ |
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/*
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* This file is part of Libav. |
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* |
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* Libav 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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* Libav 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 Libav; 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_X86_MDCT_H |
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#define AVCODEC_X86_MDCT_H |
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#include "libavcodec/fft.h" |
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void ff_imdct_calc_3dnow(FFTContext *s, FFTSample *output, const FFTSample *input); |
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void ff_imdct_half_3dnow(FFTContext *s, FFTSample *output, const FFTSample *input); |
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void ff_imdct_calc_3dnowext(FFTContext *s, FFTSample *output, const FFTSample *input); |
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void ff_imdct_half_3dnowext(FFTContext *s, FFTSample *output, const FFTSample *input); |
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void ff_imdct_calc_sse(FFTContext *s, FFTSample *output, const FFTSample *input); |
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void ff_imdct_half_sse(FFTContext *s, FFTSample *output, const FFTSample *input); |
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void ff_imdct_half_avx(FFTContext *s, FFTSample *output, const FFTSample *input); |
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#endif /* AVCODEC_X86_MDCT_H */ |
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@ -0,0 +1,51 @@ |
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/*
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* This file is part of Libav. |
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* |
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* Libav 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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* Libav 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 Libav; 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/attributes.h" |
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#include "libavutil/cpu.h" |
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#include "libavutil/x86/cpu.h" |
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#include "mdct.h" |
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av_cold void ff_mdct_init_x86(FFTContext *s) |
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{ |
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int cpu_flags = av_get_cpu_flags(); |
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#if ARCH_X86_32 |
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if (EXTERNAL_AMD3DNOW(cpu_flags)) { |
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s->imdct_calc = ff_imdct_calc_3dnow; |
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s->imdct_half = ff_imdct_half_3dnow; |
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} |
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if (EXTERNAL_AMD3DNOWEXT(cpu_flags)) { |
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s->imdct_calc = ff_imdct_calc_3dnowext; |
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s->imdct_half = ff_imdct_half_3dnowext; |
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} |
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#endif /* ARCH_X86_32 */ |
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if (EXTERNAL_SSE(cpu_flags)) { |
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s->imdct_calc = ff_imdct_calc_sse; |
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s->imdct_half = ff_imdct_half_sse; |
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} |
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if (EXTERNAL_AVX_FAST(cpu_flags) && s->nbits >= 5) { |
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s->imdct_half = ff_imdct_half_avx; |
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} |
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} |
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