1/*
2 * Copyright (c) 2014 Peter Meerwald <pmeerw@pmeerw.net>
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg 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.
10 *
11 * FFmpeg 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.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21#include "config.h"
22
23#include "libavutil/cpu.h"
24#include "libavutil/arm/cpu.h"
25#include "libavutil/internal.h"
26#include "libavutil/samplefmt.h"
27
28#include "libavresample/resample.h"
29
30#include "asm-offsets.h"
31
32AV_CHECK_OFFSET(struct ResampleContext, filter_bank,   FILTER_BANK);
33AV_CHECK_OFFSET(struct ResampleContext, filter_length, FILTER_LENGTH);
34AV_CHECK_OFFSET(struct ResampleContext, src_incr,      SRC_INCR);
35AV_CHECK_OFFSET(struct ResampleContext, phase_shift,   PHASE_SHIFT);
36AV_CHECK_OFFSET(struct ResampleContext, phase_mask,    PHASE_MASK);
37
38void ff_resample_one_flt_neon(struct ResampleContext *c, void *dst0,
39                              int dst_index, const void *src0,
40                              unsigned int index, int frac);
41void ff_resample_one_s16_neon(struct ResampleContext *c, void *dst0,
42                              int dst_index, const void *src0,
43                              unsigned int index, int frac);
44void ff_resample_one_s32_neon(struct ResampleContext *c, void *dst0,
45                              int dst_index, const void *src0,
46                              unsigned int index, int frac);
47
48void ff_resample_linear_flt_neon(struct ResampleContext *c, void *dst0,
49                                 int dst_index, const void *src0,
50                                 unsigned int index, int frac);
51
52av_cold void ff_audio_resample_init_arm(ResampleContext *c,
53                                        enum AVSampleFormat sample_fmt)
54{
55    int cpu_flags = av_get_cpu_flags();
56    if (have_neon(cpu_flags)) {
57        switch (sample_fmt) {
58        case AV_SAMPLE_FMT_FLTP:
59            if (c->linear)
60                c->resample_one = ff_resample_linear_flt_neon;
61            else
62                c->resample_one = ff_resample_one_flt_neon;
63            break;
64        case AV_SAMPLE_FMT_S16P:
65            if (!c->linear)
66                c->resample_one = ff_resample_one_s16_neon;
67            break;
68        case AV_SAMPLE_FMT_S32P:
69            if (!c->linear)
70                c->resample_one = ff_resample_one_s32_neon;
71            break;
72        }
73    }
74}
75