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 <stddef.h> 20 21#include "libavutil/cpu.h" 22#include "libavutil/aarch64/cpu.h" 23#include "libavutil/internal.h" 24#include "libavcodec/opus_imdct.h" 25 26#include "asm-offsets.h" 27 28AV_CHECK_OFFSET(CeltIMDCTContext, exptab, CELT_EXPTAB); 29AV_CHECK_OFFSET(CeltIMDCTContext, fft_n, CELT_FFT_N); 30AV_CHECK_OFFSET(CeltIMDCTContext, len2, CELT_LEN2); 31AV_CHECK_OFFSET(CeltIMDCTContext, len4, CELT_LEN4); 32AV_CHECK_OFFSET(CeltIMDCTContext, tmp, CELT_TMP); 33AV_CHECK_OFFSET(CeltIMDCTContext, twiddle_exptab, CELT_TWIDDLE); 34 35void ff_celt_imdct_half_neon(CeltIMDCTContext *s, float *dst, const float *src, 36 ptrdiff_t stride, float scale); 37 38void ff_celt_imdct_init_aarch64(CeltIMDCTContext *s) 39{ 40 int cpu_flags = av_get_cpu_flags(); 41 42 if (have_neon(cpu_flags)) { 43 s->imdct_half = ff_celt_imdct_half_neon; 44 } 45} 46