| 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 <stdint.h> |
| 20 | |
| 21 | #include "config.h" |
| 22 | #include "libavutil/attributes.h" |
| 23 | #include "libavutil/cpu.h" |
| 24 | #include "libavutil/aarch64/cpu.h" |
| 25 | #include "libavutil/samplefmt.h" |
| 26 | #include "libavresample/audio_convert.h" |
| 27 | |
| 28 | void ff_conv_flt_to_s16_neon(int16_t *dst, const float *src, int len); |
| 29 | void ff_conv_fltp_to_s16_neon(int16_t *dst, float *const *src, |
| 30 | int len, int channels); |
| 31 | void ff_conv_fltp_to_s16_2ch_neon(int16_t *dst, float *const *src, |
| 32 | int len, int channels); |
| 33 | |
| 34 | av_cold void ff_audio_convert_init_aarch64(AudioConvert *ac) |
| 35 | { |
| 36 | int cpu_flags = av_get_cpu_flags(); |
| 37 | |
| 38 | if (have_neon(cpu_flags)) { |
| 39 | ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLT, |
| 40 | 0, 16, 8, "NEON", |
| 41 | ff_conv_flt_to_s16_neon); |
| 42 | ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLTP, |
| 43 | 2, 16, 8, "NEON", |
| 44 | ff_conv_fltp_to_s16_2ch_neon); |
| 45 | ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLTP, |
| 46 | 0, 16, 8, "NEON", |
| 47 | ff_conv_fltp_to_s16_neon); |
| 48 | } |
| 49 | } |