| Directory: | ../../../ffmpeg/ |
|---|---|
| File: | src/libavcodec/vorbisdsp.c |
| Date: | 2022-11-28 23:49:43 |
| Exec | Total | Coverage | |
|---|---|---|---|
| Lines: | 17 | 17 | 100.0% |
| Branches: | 8 | 8 | 100.0% |
| Line | Branch | Exec | Source |
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| 1 | /* | ||
| 2 | * This file is part of FFmpeg. | ||
| 3 | * | ||
| 4 | * FFmpeg is free software; you can redistribute it and/or | ||
| 5 | * modify it under the terms of the GNU Lesser General Public | ||
| 6 | * License as published by the Free Software Foundation; either | ||
| 7 | * version 2.1 of the License, or (at your option) any later version. | ||
| 8 | * | ||
| 9 | * FFmpeg is distributed in the hope that it will be useful, | ||
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 12 | * Lesser General Public License for more details. | ||
| 13 | * | ||
| 14 | * You should have received a copy of the GNU Lesser General Public | ||
| 15 | * License along with FFmpeg; if not, write to the Free Software | ||
| 16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 17 | */ | ||
| 18 | |||
| 19 | #include "config.h" | ||
| 20 | #include "libavutil/attributes.h" | ||
| 21 | #include "vorbisdsp.h" | ||
| 22 | |||
| 23 | 5390 | static void vorbis_inverse_coupling_c(float *mag, float *ang, ptrdiff_t blocksize) | |
| 24 | { | ||
| 25 |
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4059150 | for (ptrdiff_t i = 0; i < blocksize; i++) { |
| 26 | 4053760 | float angi = ang[i], magi = mag[i]; | |
| 27 | |||
| 28 |
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4053760 | if (magi > 0.f) { |
| 29 |
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627021 | if (angi > 0.f) { |
| 30 | 157461 | ang[i] = magi - angi; | |
| 31 | } else { | ||
| 32 | 469560 | ang[i] = magi; | |
| 33 | 469560 | mag[i] = magi + angi; | |
| 34 | } | ||
| 35 | } else { | ||
| 36 |
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3426739 | if (angi > 0.f) { |
| 37 | 161290 | ang[i] = magi + angi; | |
| 38 | } else { | ||
| 39 | 3265449 | ang[i] = magi; | |
| 40 | 3265449 | mag[i] = magi - angi; | |
| 41 | } | ||
| 42 | } | ||
| 43 | } | ||
| 44 | 5390 | } | |
| 45 | |||
| 46 | 79 | av_cold void ff_vorbisdsp_init(VorbisDSPContext *dsp) | |
| 47 | { | ||
| 48 | 79 | dsp->vorbis_inverse_coupling = vorbis_inverse_coupling_c; | |
| 49 | |||
| 50 | #if ARCH_AARCH64 | ||
| 51 | ff_vorbisdsp_init_aarch64(dsp); | ||
| 52 | #elif ARCH_ARM | ||
| 53 | ff_vorbisdsp_init_arm(dsp); | ||
| 54 | #elif ARCH_PPC | ||
| 55 | ff_vorbisdsp_init_ppc(dsp); | ||
| 56 | #elif ARCH_RISCV | ||
| 57 | ff_vorbisdsp_init_riscv(dsp); | ||
| 58 | #elif ARCH_X86 | ||
| 59 | 79 | ff_vorbisdsp_init_x86(dsp); | |
| 60 | #endif | ||
| 61 | 79 | } | |
| 62 |