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/arm/cpu.h" 25#include "libavutil/samplefmt.h" 26#include "libavresample/audio_convert.h" 27 28void ff_conv_flt_to_s16_neon(int16_t *dst, const float *src, int len); 29void ff_conv_fltp_to_s16_neon(int16_t *dst, float *const *src, 30 int len, int channels); 31void ff_conv_fltp_to_s16_2ch_neon(int16_t *dst, float *const *src, 32 int len, int channels); 33 34av_cold void ff_audio_convert_init_arm(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 0, 16, 8, "NEON", 44 ff_conv_fltp_to_s16_neon); 45 ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLTP, 46 2, 16, 8, "NEON", 47 ff_conv_fltp_to_s16_2ch_neon); 48 } 49} 50