| 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 | |
| 28 | AV_CHECK_OFFSET(CeltIMDCTContext, exptab, CELT_EXPTAB); |
| 29 | AV_CHECK_OFFSET(CeltIMDCTContext, fft_n, CELT_FFT_N); |
| 30 | AV_CHECK_OFFSET(CeltIMDCTContext, len2, CELT_LEN2); |
| 31 | AV_CHECK_OFFSET(CeltIMDCTContext, len4, CELT_LEN4); |
| 32 | AV_CHECK_OFFSET(CeltIMDCTContext, tmp, CELT_TMP); |
| 33 | AV_CHECK_OFFSET(CeltIMDCTContext, twiddle_exptab, CELT_TWIDDLE); |
| 34 | |
| 35 | void ff_celt_imdct_half_neon(CeltIMDCTContext *s, float *dst, const float *src, |
| 36 | ptrdiff_t stride, float scale); |
| 37 | |
| 38 | void 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 | } |