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
32 AV_CHECK_OFFSET(struct ResampleContext, filter_bank, FILTER_BANK);
33 AV_CHECK_OFFSET(struct ResampleContext, filter_length, FILTER_LENGTH);
34 AV_CHECK_OFFSET(struct ResampleContext, src_incr, SRC_INCR);
35 AV_CHECK_OFFSET(struct ResampleContext, phase_shift, PHASE_SHIFT);
36 AV_CHECK_OFFSET(struct ResampleContext, phase_mask, PHASE_MASK);
37
38 void ff_resample_one_flt_neon(struct ResampleContext *c, void *dst0,
39 int dst_index, const void *src0,
40 unsigned int index, int frac);
41 void ff_resample_one_s16_neon(struct ResampleContext *c, void *dst0,
42 int dst_index, const void *src0,
43 unsigned int index, int frac);
44 void ff_resample_one_s32_neon(struct ResampleContext *c, void *dst0,
45 int dst_index, const void *src0,
46 unsigned int index, int frac);
47
48 void ff_resample_linear_flt_neon(struct ResampleContext *c, void *dst0,
49 int dst_index, const void *src0,
50 unsigned int index, int frac);
51
ff_audio_resample_init_arm(ResampleContext * c,enum AVSampleFormat sample_fmt)52 av_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