| /* |
| * 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 <stddef.h> |
| |
| #include "libavutil/cpu.h" |
| #include "libavutil/aarch64/cpu.h" |
| #include "libavutil/internal.h" |
| |
| #include "libavcodec/imdct15.h" |
| |
| #include "asm-offsets.h" |
| |
| AV_CHECK_OFFSET(IMDCT15Context, exptab, CELT_EXPTAB); |
| AV_CHECK_OFFSET(IMDCT15Context, fft_n, CELT_FFT_N); |
| AV_CHECK_OFFSET(IMDCT15Context, len2, CELT_LEN2); |
| AV_CHECK_OFFSET(IMDCT15Context, len4, CELT_LEN4); |
| AV_CHECK_OFFSET(IMDCT15Context, tmp, CELT_TMP); |
| AV_CHECK_OFFSET(IMDCT15Context, twiddle_exptab, CELT_TWIDDLE); |
| |
| void ff_celt_imdct_half_neon(IMDCT15Context *s, float *dst, const float *src, |
| ptrdiff_t stride, float scale); |
| |
| void ff_imdct15_init_aarch64(IMDCT15Context *s) |
| { |
| int cpu_flags = av_get_cpu_flags(); |
| |
| if (have_neon(cpu_flags)) { |
| s->imdct_half = ff_celt_imdct_half_neon; |
| } |
| } |