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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 6147 | serge | 1 | /* |
| 2 | * audio resampling |
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| 3 | * Copyright (c) 2004-2012 Michael Niedermayer |
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| 4 | * |
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| 5 | * This file is part of FFmpeg. |
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| 6 | * |
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| 7 | * FFmpeg is free software; you can redistribute it and/or |
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| 8 | * modify it under the terms of the GNU Lesser General Public |
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| 9 | * License as published by the Free Software Foundation; either |
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| 10 | * version 2.1 of the License, or (at your option) any later version. |
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| 11 | * |
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| 12 | * FFmpeg is distributed in the hope that it will be useful, |
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 15 | * Lesser General Public License for more details. |
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| 16 | * |
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| 17 | * You should have received a copy of the GNU Lesser General Public |
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| 18 | * License along with FFmpeg; if not, write to the Free Software |
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| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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| 20 | */ |
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| 21 | |||
| 22 | /** |
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| 23 | * @file |
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| 24 | * audio resampling |
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| 25 | * @author Michael Niedermayer |
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| 26 | */ |
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| 27 | |||
| 28 | #include "libavutil/x86/cpu.h" |
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| 29 | #include "libswresample/resample.h" |
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| 30 | |||
| 31 | #define RESAMPLE_FUNCS(type, opt) \ |
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| 32 | int ff_resample_common_##type##_##opt(ResampleContext *c, void *dst, \ |
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| 33 | const void *src, int sz, int upd); \ |
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| 34 | int ff_resample_linear_##type##_##opt(ResampleContext *c, void *dst, \ |
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| 35 | const void *src, int sz, int upd) |
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| 36 | |||
| 37 | RESAMPLE_FUNCS(int16, mmxext); |
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| 38 | RESAMPLE_FUNCS(int16, sse2); |
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| 39 | RESAMPLE_FUNCS(int16, xop); |
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| 40 | RESAMPLE_FUNCS(float, sse); |
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| 41 | RESAMPLE_FUNCS(float, avx); |
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| 42 | RESAMPLE_FUNCS(float, fma3); |
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| 43 | RESAMPLE_FUNCS(float, fma4); |
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| 44 | RESAMPLE_FUNCS(double, sse2); |
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| 45 | |||
| 46 | av_cold void swri_resample_dsp_x86_init(ResampleContext *c) |
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| 47 | { |
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| 48 | int av_unused mm_flags = av_get_cpu_flags(); |
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| 49 | |||
| 50 | switch(c->format){ |
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| 51 | case AV_SAMPLE_FMT_S16P: |
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| 52 | if (ARCH_X86_32 && EXTERNAL_MMXEXT(mm_flags)) { |
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| 53 | c->dsp.resample = c->linear ? ff_resample_linear_int16_mmxext |
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| 54 | : ff_resample_common_int16_mmxext; |
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| 55 | } |
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| 56 | if (EXTERNAL_SSE2(mm_flags)) { |
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| 57 | c->dsp.resample = c->linear ? ff_resample_linear_int16_sse2 |
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| 58 | : ff_resample_common_int16_sse2; |
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| 59 | } |
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| 60 | if (EXTERNAL_XOP(mm_flags)) { |
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| 61 | c->dsp.resample = c->linear ? ff_resample_linear_int16_xop |
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| 62 | : ff_resample_common_int16_xop; |
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| 63 | } |
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| 64 | break; |
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| 65 | case AV_SAMPLE_FMT_FLTP: |
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| 66 | if (EXTERNAL_SSE(mm_flags)) { |
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| 67 | c->dsp.resample = c->linear ? ff_resample_linear_float_sse |
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| 68 | : ff_resample_common_float_sse; |
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| 69 | } |
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| 70 | if (EXTERNAL_AVX_FAST(mm_flags)) { |
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| 71 | c->dsp.resample = c->linear ? ff_resample_linear_float_avx |
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| 72 | : ff_resample_common_float_avx; |
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| 73 | } |
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| 74 | if (EXTERNAL_FMA3(mm_flags) && !(mm_flags & AV_CPU_FLAG_AVXSLOW)) { |
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| 75 | c->dsp.resample = c->linear ? ff_resample_linear_float_fma3 |
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| 76 | : ff_resample_common_float_fma3; |
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| 77 | } |
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| 78 | if (EXTERNAL_FMA4(mm_flags)) { |
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| 79 | c->dsp.resample = c->linear ? ff_resample_linear_float_fma4 |
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| 80 | : ff_resample_common_float_fma4; |
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| 81 | } |
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| 82 | break; |
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| 83 | case AV_SAMPLE_FMT_DBLP: |
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| 84 | if (EXTERNAL_SSE2(mm_flags)) { |
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| 85 | c->dsp.resample = c->linear ? ff_resample_linear_double_sse2 |
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| 86 | : ff_resample_common_double_sse2; |
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| 87 | } |
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| 88 | break; |
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| 89 | } |
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| 90 | } |