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https://github.com/FFmpeg/FFmpeg.git
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9dcaae70f2
Between 1.5 and 2.5 times faster Reviewed-by: Michael Niedermayer <michael@niedermayer.cc> Signed-off-by: James Almer <jamrial@gmail.com>
56 lines
2.2 KiB
C
56 lines
2.2 KiB
C
/*
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* SIMD optimized MPEG-4 Parametric Stereo decoding functions
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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 "libavutil/attributes.h"
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#include "libavcodec/aacpsdsp.h"
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void ff_ps_add_squares_sse (float *dst, const float (*src)[2], int n);
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void ff_ps_add_squares_sse3 (float *dst, const float (*src)[2], int n);
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void ff_ps_mul_pair_single_sse (float (*dst)[2], float (*src0)[2],
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float *src1, int n);
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void ff_ps_hybrid_analysis_sse (float (*out)[2], float (*in)[2],
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const float (*filter)[8][2],
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int stride, int n);
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void ff_ps_hybrid_analysis_sse3(float (*out)[2], float (*in)[2],
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const float (*filter)[8][2],
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int stride, int n);
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void ff_ps_stereo_interpolate_sse3(float (*l)[2], float (*r)[2],
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float h[2][4], float h_step[2][4],
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int len);
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av_cold void ff_psdsp_init_x86(PSDSPContext *s)
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{
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int cpu_flags = av_get_cpu_flags();
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if (EXTERNAL_SSE(cpu_flags)) {
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s->add_squares = ff_ps_add_squares_sse;
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s->mul_pair_single = ff_ps_mul_pair_single_sse;
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s->hybrid_analysis = ff_ps_hybrid_analysis_sse;
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}
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if (EXTERNAL_SSE3(cpu_flags)) {
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s->add_squares = ff_ps_add_squares_sse3;
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s->stereo_interpolate[0] = ff_ps_stereo_interpolate_sse3;
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s->hybrid_analysis = ff_ps_hybrid_analysis_sse3;
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}
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}
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