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https://github.com/FFmpeg/FFmpeg.git
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3c99523a28
This splits the asm function into exact and non-exact version. The exact version is as fast or faster on newer CPUs (which EXTERNAL_AVX_FAST describes well) whilst the non-exact version is faster than the exact on older CPUs. Also fixes yasm compilation which doesn't accept !cpuflags(avx) syntax. Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
46 lines
1.5 KiB
C
46 lines
1.5 KiB
C
/*
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* Opus encoder assembly optimizations
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* Copyright (C) 2017 Ivan Kalvachev <ikalvachev@gmail.com>
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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 "libavcodec/opus_pvq.h"
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extern float ff_pvq_search_approx_sse2(float *X, int *y, int K, int N);
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extern float ff_pvq_search_approx_sse4(float *X, int *y, int K, int N);
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extern float ff_pvq_search_exact_avx (float *X, int *y, int K, int N);
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av_cold void ff_opus_dsp_init_x86(CeltPVQ *s)
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{
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int cpu_flags = av_get_cpu_flags();
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#if CONFIG_OPUS_ENCODER
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if (EXTERNAL_SSE2(cpu_flags))
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s->pvq_search = ff_pvq_search_approx_sse2;
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if (EXTERNAL_SSE4(cpu_flags))
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s->pvq_search = ff_pvq_search_approx_sse4;
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if (EXTERNAL_AVX_FAST(cpu_flags))
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s->pvq_search = ff_pvq_search_exact_avx;
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#endif
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}
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