videodsp_init.c (1156B)
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/aarch64/cpu.h" 22 #include "libavcodec/videodsp.h" 23 24 void ff_prefetch_aarch64(const uint8_t *mem, ptrdiff_t stride, int h); 25 26 av_cold void ff_videodsp_init_aarch64(VideoDSPContext *ctx, int bpc) 27 { 28 int cpu_flags = av_get_cpu_flags(); 29 30 if (have_armv8(cpu_flags)) 31 ctx->prefetch = ff_prefetch_aarch64; 32 }