| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * Copyright (c) 2017 Paul B Mahol | ||
| 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 | #ifndef AVFILTER_AFIRDSP_H | ||
| 22 | #define AVFILTER_AFIRDSP_H | ||
| 23 | |||
| 24 | #include <stddef.h> | ||
| 25 | |||
| 26 | #include "config.h" | ||
| 27 | #include "libavutil/attributes.h" | ||
| 28 | |||
| 29 | typedef struct AudioFIRDSPContext { | ||
| 30 | void (*fcmul_add)(float *sum, const float *t, const float *c, | ||
| 31 | ptrdiff_t len); | ||
| 32 | void (*dcmul_add)(double *sum, const double *t, const double *c, | ||
| 33 | ptrdiff_t len); | ||
| 34 | } AudioFIRDSPContext; | ||
| 35 | |||
| 36 | void ff_afir_init_riscv(AudioFIRDSPContext *s); | ||
| 37 | void ff_afir_init_x86(AudioFIRDSPContext *s); | ||
| 38 | |||
| 39 | 3 | static void fcmul_add_c(float *sum, const float *t, const float *c, ptrdiff_t len) | |
| 40 | { | ||
| 41 | int n; | ||
| 42 | |||
| 43 |
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771 | for (n = 0; n < len; n++) { |
| 44 | 768 | const float cre = c[2 * n ]; | |
| 45 | 768 | const float cim = c[2 * n + 1]; | |
| 46 | 768 | const float tre = t[2 * n ]; | |
| 47 | 768 | const float tim = t[2 * n + 1]; | |
| 48 | |||
| 49 | 768 | sum[2 * n ] += tre * cre - tim * cim; | |
| 50 | 768 | sum[2 * n + 1] += tre * cim + tim * cre; | |
| 51 | } | ||
| 52 | |||
| 53 | 3 | sum[2 * n] += t[2 * n] * c[2 * n]; | |
| 54 | 3 | } | |
| 55 | |||
| 56 | 2 | static void dcmul_add_c(double *sum, const double *t, const double *c, ptrdiff_t len) | |
| 57 | { | ||
| 58 | int n; | ||
| 59 | |||
| 60 |
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514 | for (n = 0; n < len; n++) { |
| 61 | 512 | const double cre = c[2 * n ]; | |
| 62 | 512 | const double cim = c[2 * n + 1]; | |
| 63 | 512 | const double tre = t[2 * n ]; | |
| 64 | 512 | const double tim = t[2 * n + 1]; | |
| 65 | |||
| 66 | 512 | sum[2 * n ] += tre * cre - tim * cim; | |
| 67 | 512 | sum[2 * n + 1] += tre * cim + tim * cre; | |
| 68 | } | ||
| 69 | |||
| 70 | 2 | sum[2 * n] += t[2 * n] * c[2 * n]; | |
| 71 | 2 | } | |
| 72 | |||
| 73 | 13 | static av_unused void ff_afir_init(AudioFIRDSPContext *dsp) | |
| 74 | { | ||
| 75 | 13 | dsp->fcmul_add = fcmul_add_c; | |
| 76 | 13 | dsp->dcmul_add = dcmul_add_c; | |
| 77 | |||
| 78 | #if ARCH_RISCV | ||
| 79 | ff_afir_init_riscv(dsp); | ||
| 80 | #elif ARCH_X86 | ||
| 81 | 13 | ff_afir_init_x86(dsp); | |
| 82 | #endif | ||
| 83 | 13 | } | |
| 84 | |||
| 85 | #endif /* AVFILTER_AFIRDSP_H */ | ||
| 86 |