1/* 2 * This file is part of FFmpeg. 3 * 4 * FFmpeg is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Lesser General Public 6 * License as published by the Free Software Foundation; either 7 * version 2.1 of the License, or (at your option) any later version. 8 * 9 * FFmpeg is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Lesser General Public License for more details. 13 * 14 * You should have received a copy of the GNU Lesser General Public 15 * License along with FFmpeg; if not, write to the Free Software 16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 17 */ 18 19#include "libavutil/attributes.h" 20#include "libavutil/cpu.h" 21#include "libavutil/x86/cpu.h" 22#include "libavcodec/avcodec.h" 23#include "libavcodec/dct.h" 24#include "libavcodec/fdctdsp.h" 25 26av_cold void ff_fdctdsp_init_x86(FDCTDSPContext *c, AVCodecContext *avctx, 27 unsigned high_bit_depth) 28{ 29 int cpu_flags = av_get_cpu_flags(); 30 const int dct_algo = avctx->dct_algo; 31 32 if (!high_bit_depth) { 33 if ((dct_algo == FF_DCT_AUTO || dct_algo == FF_DCT_MMX)) { 34 if (INLINE_MMX(cpu_flags)) 35 c->fdct = ff_fdct_mmx; 36 37 if (INLINE_MMXEXT(cpu_flags)) 38 c->fdct = ff_fdct_mmxext; 39 40 if (INLINE_SSE2(cpu_flags)) 41 c->fdct = ff_fdct_sse2; 42 } 43 } 44} 45