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![Marton Balint](/assets/img/avatar_default.png)
Blend function speedups on x86_64 Core i5 4460: ffmpeg -f lavfi -i allyuv -vf framerate=60:threads=1 -f null none C: 447548411 decicycles in Blend, 2048 runs, 0 skips SSSE3: 130020087 decicycles in Blend, 2048 runs, 0 skips AVX2: 128508221 decicycles in Blend, 2048 runs, 0 skips ffmpeg -f lavfi -i allyuv -vf format=yuv420p12,framerate=60:threads=1 -f null none C: 228932745 decicycles in Blend, 2048 runs, 0 skips SSE4: 123357781 decicycles in Blend, 2048 runs, 0 skips AVX2: 121215353 decicycles in Blend, 2048 runs, 0 skips Signed-off-by: Marton Balint <cus@passwd.hu>
43 lines
1.5 KiB
C
43 lines
1.5 KiB
C
/*
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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 "libavutil/cpu.h"
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#include "libavutil/x86/cpu.h"
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#include "libavfilter/framerate.h"
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void ff_blend_frames_ssse3(BLEND_FUNC_PARAMS);
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void ff_blend_frames_avx2(BLEND_FUNC_PARAMS);
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void ff_blend_frames16_sse4(BLEND_FUNC_PARAMS);
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void ff_blend_frames16_avx2(BLEND_FUNC_PARAMS);
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void ff_framerate_init_x86(FrameRateContext *s)
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{
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int cpu_flags = av_get_cpu_flags();
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if (s->bitdepth == 8) {
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if (EXTERNAL_AVX2_FAST(cpu_flags))
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s->blend = ff_blend_frames_avx2;
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else if (EXTERNAL_SSSE3(cpu_flags))
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s->blend = ff_blend_frames_ssse3;
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} else {
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if (EXTERNAL_AVX2_FAST(cpu_flags))
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s->blend = ff_blend_frames16_avx2;
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else if (EXTERNAL_SSE4(cpu_flags))
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s->blend = ff_blend_frames16_sse4;
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}
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}
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