faa1471ffc
Linear interpolation goes from 63 (llvm) or 58 (gcc) to 48 (yasm) cycles/sample on 64bit, or from 66 (llvm/gcc) to 52 (yasm) cycles/ sample on 32bit. Bon-linear goes from 43 (llvm) or 38 (gcc) to 32 (yasm) cycles/sample on 64bit, or from 46 (llvm) or 44 (gcc) to 38 (yasm) cycles/sample on 32bit (all testing on OSX 10.9.2, llvm 5.1 and gcc 4.8/9). Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
101 lines
4.4 KiB
C
101 lines
4.4 KiB
C
/*
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* audio resampling
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* Copyright (c) 2004-2012 Michael Niedermayer <michaelni@gmx.at>
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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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* @file
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* audio resampling
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* @author Michael Niedermayer <michaelni@gmx.at>
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*/
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#include "libswresample/resample.h"
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int swri_resample_common_int16_mmx2 (ResampleContext *c, int16_t *dst, const int16_t *src, int n, int update_ctx);
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int swri_resample_linear_int16_mmx2 (ResampleContext *c, int16_t *dst, const int16_t *src, int n, int update_ctx);
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int swri_resample_common_int16_sse2 (ResampleContext *c, int16_t *dst, const int16_t *src, int n, int update_ctx);
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int swri_resample_linear_int16_sse2 (ResampleContext *c, int16_t *dst, const int16_t *src, int n, int update_ctx);
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int swri_resample_common_float_sse (ResampleContext *c, float *dst, const float *src, int n, int update_ctx);
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int swri_resample_linear_float_sse (ResampleContext *c, float *dst, const float *src, int n, int update_ctx);
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int swri_resample_common_float_avx (ResampleContext *c, float *dst, const float *src, int n, int update_ctx);
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int swri_resample_linear_float_avx (ResampleContext *c, float *dst, const float *src, int n, int update_ctx);
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int swri_resample_common_double_sse2(ResampleContext *c, double *dst, const double *src, int n, int update_ctx);
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int swri_resample_linear_double_sse2(ResampleContext *c, double *dst, const double *src, int n, int update_ctx);
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#if HAVE_MMXEXT_INLINE
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#define DO_RESAMPLE_ONE 0
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#include "resample_mmx.h"
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#if ARCH_X86_32
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#define TEMPLATE_RESAMPLE_S16_MMX2
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#include "libswresample/resample_template.c"
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#undef TEMPLATE_RESAMPLE_S16_MMX2
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#endif
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#if HAVE_SSE2_INLINE
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#define TEMPLATE_RESAMPLE_S16_SSE2
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#include "libswresample/resample_template.c"
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#undef TEMPLATE_RESAMPLE_S16_SSE2
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#define TEMPLATE_RESAMPLE_DBL_SSE2
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#include "libswresample/resample_template.c"
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#undef TEMPLATE_RESAMPLE_DBL_SSE2
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#endif
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#undef DO_RESAMPLE_ONE
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#endif // HAVE_MMXEXT_INLINE
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int ff_resample_common_float_sse(ResampleContext *c, uint8_t *dst,
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const uint8_t *src, int sz, int upd);
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int ff_resample_linear_float_sse(ResampleContext *c, uint8_t *dst,
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const uint8_t *src, int sz, int upd);
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int ff_resample_common_float_avx(ResampleContext *c, uint8_t *dst,
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const uint8_t *src, int sz, int upd);
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int ff_resample_linear_float_avx(ResampleContext *c, uint8_t *dst,
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const uint8_t *src, int sz, int upd);
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void swresample_dsp_x86_init(ResampleContext *c)
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{
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int av_unused mm_flags = av_get_cpu_flags();
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#define FNIDX(fmt) (AV_SAMPLE_FMT_##fmt - AV_SAMPLE_FMT_S16P)
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if (ARCH_X86_32 && HAVE_MMXEXT_INLINE && mm_flags & AV_CPU_FLAG_MMX2) {
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c->dsp.resample_common[FNIDX(S16P)] = (resample_fn) swri_resample_common_int16_mmx2;
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c->dsp.resample_linear[FNIDX(S16P)] = (resample_fn) swri_resample_linear_int16_mmx2;
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}
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if (HAVE_SSE_EXTERNAL && mm_flags & AV_CPU_FLAG_SSE) {
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c->dsp.resample_common[FNIDX(FLTP)] = ff_resample_common_float_sse;
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c->dsp.resample_linear[FNIDX(FLTP)] = ff_resample_linear_float_sse;
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}
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if (HAVE_SSE2_INLINE && mm_flags & AV_CPU_FLAG_SSE2) {
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c->dsp.resample_common[FNIDX(S16P)] = (resample_fn) swri_resample_common_int16_sse2;
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c->dsp.resample_linear[FNIDX(S16P)] = (resample_fn) swri_resample_linear_int16_sse2;
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c->dsp.resample_common[FNIDX(DBLP)] = (resample_fn) swri_resample_common_double_sse2;
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c->dsp.resample_linear[FNIDX(DBLP)] = (resample_fn) swri_resample_linear_double_sse2;
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}
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if (HAVE_AVX_EXTERNAL && mm_flags & AV_CPU_FLAG_AVX) {
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c->dsp.resample_common[FNIDX(FLTP)] = ff_resample_common_float_avx;
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c->dsp.resample_linear[FNIDX(FLTP)] = ff_resample_linear_float_avx;
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}
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}
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