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1 | /* |
2 | * audio resampling | |
3 | * Copyright (c) 2004-2012 Michael Niedermayer <michaelni@gmx.at> | |
4 | * | |
5 | * This file is part of FFmpeg. | |
6 | * | |
7 | * FFmpeg is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU Lesser General Public | |
9 | * License as published by the Free Software Foundation; either | |
10 | * version 2.1 of the License, or (at your option) any later version. | |
11 | * | |
12 | * FFmpeg is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * Lesser General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU Lesser General Public | |
18 | * License along with FFmpeg; if not, write to the Free Software | |
19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
20 | */ | |
21 | ||
22 | /** | |
23 | * @file | |
24 | * audio resampling | |
25 | * @author Michael Niedermayer <michaelni@gmx.at> | |
26 | */ | |
27 | ||
28 | #include "libavutil/x86/cpu.h" | |
29 | #include "libswresample/resample.h" | |
30 | ||
31 | #define RESAMPLE_FUNCS(type, opt) \ | |
32 | int ff_resample_common_##type##_##opt(ResampleContext *c, void *dst, \ | |
33 | const void *src, int sz, int upd); \ | |
34 | int ff_resample_linear_##type##_##opt(ResampleContext *c, void *dst, \ | |
35 | const void *src, int sz, int upd) | |
36 | ||
37 | RESAMPLE_FUNCS(int16, mmxext); | |
38 | RESAMPLE_FUNCS(int16, sse2); | |
39 | RESAMPLE_FUNCS(int16, xop); | |
40 | RESAMPLE_FUNCS(float, sse); | |
41 | RESAMPLE_FUNCS(float, avx); | |
42 | RESAMPLE_FUNCS(float, fma3); | |
43 | RESAMPLE_FUNCS(float, fma4); | |
44 | RESAMPLE_FUNCS(double, sse2); | |
45 | ||
46 | void swri_resample_dsp_x86_init(ResampleContext *c) | |
47 | { | |
48 | int av_unused mm_flags = av_get_cpu_flags(); | |
49 | ||
50 | switch(c->format){ | |
51 | case AV_SAMPLE_FMT_S16P: | |
52 | if (ARCH_X86_32 && EXTERNAL_MMXEXT(mm_flags)) { | |
53 | c->dsp.resample = c->linear ? ff_resample_linear_int16_mmxext | |
54 | : ff_resample_common_int16_mmxext; | |
55 | } | |
56 | if (EXTERNAL_SSE2(mm_flags)) { | |
57 | c->dsp.resample = c->linear ? ff_resample_linear_int16_sse2 | |
58 | : ff_resample_common_int16_sse2; | |
59 | } | |
60 | if (EXTERNAL_XOP(mm_flags)) { | |
61 | c->dsp.resample = c->linear ? ff_resample_linear_int16_xop | |
62 | : ff_resample_common_int16_xop; | |
63 | } | |
64 | break; | |
65 | case AV_SAMPLE_FMT_FLTP: | |
66 | if (EXTERNAL_SSE(mm_flags)) { | |
67 | c->dsp.resample = c->linear ? ff_resample_linear_float_sse | |
68 | : ff_resample_common_float_sse; | |
69 | } | |
70 | if (EXTERNAL_AVX(mm_flags)) { | |
71 | c->dsp.resample = c->linear ? ff_resample_linear_float_avx | |
72 | : ff_resample_common_float_avx; | |
73 | } | |
74 | if (EXTERNAL_FMA3(mm_flags)) { | |
75 | c->dsp.resample = c->linear ? ff_resample_linear_float_fma3 | |
76 | : ff_resample_common_float_fma3; | |
77 | } | |
78 | if (EXTERNAL_FMA4(mm_flags)) { | |
79 | c->dsp.resample = c->linear ? ff_resample_linear_float_fma4 | |
80 | : ff_resample_common_float_fma4; | |
81 | } | |
82 | break; | |
83 | case AV_SAMPLE_FMT_DBLP: | |
84 | if (EXTERNAL_SSE2(mm_flags)) { | |
85 | c->dsp.resample = c->linear ? ff_resample_linear_double_sse2 | |
86 | : ff_resample_common_double_sse2; | |
87 | } | |
88 | break; | |
89 | } | |
90 | } |