2 * Copyright (c) 2012 Justin Ruggles <justin.ruggles@gmail.com>
4 * This file is part of Libav.
6 * Libav is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * Libav is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with Libav; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 #include "libavutil/cpu.h"
23 #include "libavresample/audio_convert.h"
25 extern void ff_conv_s16_to_s32_sse2(int16_t *dst, const int32_t *src, int len);
27 extern void ff_conv_fltp_to_flt_6ch_mmx (float *dst, float *const *src, int len);
28 extern void ff_conv_fltp_to_flt_6ch_sse4(float *dst, float *const *src, int len);
29 extern void ff_conv_fltp_to_flt_6ch_avx (float *dst, float *const *src, int len);
31 av_cold void ff_audio_convert_init_x86(AudioConvert *ac)
34 int mm_flags = av_get_cpu_flags();
36 if (mm_flags & AV_CPU_FLAG_MMX && HAVE_MMX) {
37 ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLTP,
38 6, 1, 4, "MMX", ff_conv_fltp_to_flt_6ch_mmx);
40 if (mm_flags & AV_CPU_FLAG_SSE4 && HAVE_SSE) {
41 ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLTP,
42 6, 16, 4, "SSE4", ff_conv_fltp_to_flt_6ch_sse4);
44 if (mm_flags & AV_CPU_FLAG_AVX && HAVE_AVX) {
45 ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLTP,
46 6, 16, 4, "AVX", ff_conv_fltp_to_flt_6ch_avx);
48 if (mm_flags & AV_CPU_FLAG_SSE2 && HAVE_SSE) {
49 ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S16,
50 0, 16, 8, "SSE2", ff_conv_s16_to_s32_sse2);