/* * Copyright (c) 2012 Justin Ruggles <justin.ruggles@gmail.com> * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include "config.h" #include "libavutil/cpu.h" #include "libavutil/x86/cpu.h" #include "libavresample/dither.h" void ff_quantize_sse2(int16_t *dst, const float *src, float *dither, int len); void ff_dither_int_to_float_rectangular_sse2(float *dst, int *src, int len); void ff_dither_int_to_float_rectangular_avx(float *dst, int *src, int len); void ff_dither_int_to_float_triangular_sse2(float *dst, int *src0, int len); void ff_dither_int_to_float_triangular_avx(float *dst, int *src0, int len); av_cold void ff_dither_init_x86(DitherDSPContext *ddsp, enum AVResampleDitherMethod method) { int cpu_flags = av_get_cpu_flags(); if (EXTERNAL_SSE2(cpu_flags)) { ddsp->quantize = ff_quantize_sse2; ddsp->ptr_align = 16; ddsp->samples_align = 8; } if (method == AV_RESAMPLE_DITHER_RECTANGULAR) { if (EXTERNAL_SSE2(cpu_flags)) { ddsp->dither_int_to_float = ff_dither_int_to_float_rectangular_sse2; } if (EXTERNAL_AVX_FAST(cpu_flags)) { ddsp->dither_int_to_float = ff_dither_int_to_float_rectangular_avx; } } else { if (EXTERNAL_SSE2(cpu_flags)) { ddsp->dither_int_to_float = ff_dither_int_to_float_triangular_sse2; } if (EXTERNAL_AVX_FAST(cpu_flags)) { ddsp->dither_int_to_float = ff_dither_int_to_float_triangular_avx; } } }