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60 lines
2.2 KiB
60 lines
2.2 KiB
/* |
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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 "libavutil/x86/cpu.h" |
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#include "libavresample/dither.h" |
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void ff_quantize_sse2(int16_t *dst, const float *src, float *dither, int len); |
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void ff_dither_int_to_float_rectangular_sse2(float *dst, int *src, int len); |
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void ff_dither_int_to_float_rectangular_avx(float *dst, int *src, int len); |
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void ff_dither_int_to_float_triangular_sse2(float *dst, int *src0, int len); |
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void ff_dither_int_to_float_triangular_avx(float *dst, int *src0, int len); |
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av_cold void ff_dither_init_x86(DitherDSPContext *ddsp, |
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enum AVResampleDitherMethod method) |
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{ |
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int cpu_flags = av_get_cpu_flags(); |
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if (EXTERNAL_SSE2(cpu_flags)) { |
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ddsp->quantize = ff_quantize_sse2; |
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ddsp->ptr_align = 16; |
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ddsp->samples_align = 8; |
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} |
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if (method == AV_RESAMPLE_DITHER_RECTANGULAR) { |
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if (EXTERNAL_SSE2(cpu_flags)) { |
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ddsp->dither_int_to_float = ff_dither_int_to_float_rectangular_sse2; |
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} |
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if (EXTERNAL_AVX(cpu_flags)) { |
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ddsp->dither_int_to_float = ff_dither_int_to_float_rectangular_avx; |
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} |
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} else { |
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if (EXTERNAL_SSE2(cpu_flags)) { |
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ddsp->dither_int_to_float = ff_dither_int_to_float_triangular_sse2; |
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} |
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if (EXTERNAL_AVX(cpu_flags)) { |
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ddsp->dither_int_to_float = ff_dither_int_to_float_triangular_avx; |
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} |
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} |
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}
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