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 "libavutil/attributes.h"
20#include "libavutil/x86/cpu.h"
21#include "libavcodec/alacdsp.h"
22#include "config.h"
23
24void ff_alac_decorrelate_stereo_sse4(int32_t *buffer[2], int nb_samples,
25                                     int decorr_shift, int decorr_left_weight);
26void ff_alac_append_extra_bits_stereo_sse2(int32_t *buffer[2], int32_t *extra_bits_buffer[2],
27                                           int extra_bits, int channels, int nb_samples);
28void ff_alac_append_extra_bits_mono_sse2(int32_t *buffer[2], int32_t *extra_bits_buffer[2],
29                                         int extra_bits, int channels, int nb_samples);
30
31av_cold void ff_alacdsp_init_x86(ALACDSPContext *c)
32{
33#if HAVE_X86ASM
34    int cpu_flags = av_get_cpu_flags();
35
36    if (EXTERNAL_SSE2(cpu_flags)) {
37        c->append_extra_bits[0] = ff_alac_append_extra_bits_mono_sse2;
38        c->append_extra_bits[1] = ff_alac_append_extra_bits_stereo_sse2;
39    }
40    if (EXTERNAL_SSE4(cpu_flags)) {
41        c->decorrelate_stereo   = ff_alac_decorrelate_stereo_sse4;
42    }
43#endif /* HAVE_X86ASM */
44}
45