5cc6d5244d
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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