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The current SSE version is slower than the MMX version on Athlon64 and Sandy Bridge, but the SSE4 and AVX versions are faster on Sandy Bridge.
48 lines
1.9 KiB
C
48 lines
1.9 KiB
C
/*
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* Copyright (c) 2012 Justin Ruggles <justin.ruggles@gmail.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 "config.h"
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#include "libavutil/cpu.h"
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#include "libavresample/audio_convert.h"
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extern void ff_conv_fltp_to_flt_6ch_mmx (float *dst, float *const *src, int len);
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extern void ff_conv_fltp_to_flt_6ch_sse4(float *dst, float *const *src, int len);
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extern void ff_conv_fltp_to_flt_6ch_avx (float *dst, float *const *src, int len);
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av_cold void ff_audio_convert_init_x86(AudioConvert *ac)
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{
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#if HAVE_YASM
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int mm_flags = av_get_cpu_flags();
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if (mm_flags & AV_CPU_FLAG_MMX && HAVE_MMX) {
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ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLTP,
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6, 1, 4, "MMX", ff_conv_fltp_to_flt_6ch_mmx);
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}
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if (mm_flags & AV_CPU_FLAG_SSE4 && HAVE_SSE) {
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ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLTP,
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6, 16, 4, "SSE4", ff_conv_fltp_to_flt_6ch_sse4);
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}
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if (mm_flags & AV_CPU_FLAG_AVX && HAVE_AVX) {
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ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLTP,
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6, 16, 4, "AVX", ff_conv_fltp_to_flt_6ch_avx);
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}
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#endif
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}
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