| Line | Branch | Exec | Source |
|---|---|---|---|
| 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 "libavutil/attributes.h" | ||
| 20 | #include "libavutil/mem.h" | ||
| 21 | #include "avfft.h" | ||
| 22 | #include "fft.h" | ||
| 23 | #include "rdft.h" | ||
| 24 | #include "dct.h" | ||
| 25 | |||
| 26 | /* FFT */ | ||
| 27 | |||
| 28 | ✗ | FFTContext *av_fft_init(int nbits, int inverse) | |
| 29 | { | ||
| 30 | ✗ | FFTContext *s = av_mallocz(sizeof(*s)); | |
| 31 | |||
| 32 | ✗ | if (s && ff_fft_init(s, nbits, inverse)) | |
| 33 | ✗ | av_freep(&s); | |
| 34 | |||
| 35 | ✗ | return s; | |
| 36 | } | ||
| 37 | |||
| 38 | ✗ | void av_fft_permute(FFTContext *s, FFTComplex *z) | |
| 39 | { | ||
| 40 | ✗ | s->fft_permute(s, z); | |
| 41 | } | ||
| 42 | |||
| 43 | ✗ | void av_fft_calc(FFTContext *s, FFTComplex *z) | |
| 44 | { | ||
| 45 | ✗ | s->fft_calc(s, z); | |
| 46 | } | ||
| 47 | |||
| 48 | ✗ | av_cold void av_fft_end(FFTContext *s) | |
| 49 | { | ||
| 50 | ✗ | if (s) { | |
| 51 | ✗ | ff_fft_end(s); | |
| 52 | ✗ | av_free(s); | |
| 53 | } | ||
| 54 | } | ||
| 55 | |||
| 56 | #if CONFIG_MDCT | ||
| 57 | |||
| 58 | FFTContext *av_mdct_init(int nbits, int inverse, double scale) | ||
| 59 | { | ||
| 60 | FFTContext *s = av_malloc(sizeof(*s)); | ||
| 61 | |||
| 62 | if (s && ff_mdct_init(s, nbits, inverse, scale)) | ||
| 63 | av_freep(&s); | ||
| 64 | |||
| 65 | return s; | ||
| 66 | } | ||
| 67 | |||
| 68 | void av_imdct_calc(FFTContext *s, FFTSample *output, const FFTSample *input) | ||
| 69 | { | ||
| 70 | s->imdct_calc(s, output, input); | ||
| 71 | } | ||
| 72 | |||
| 73 | void av_imdct_half(FFTContext *s, FFTSample *output, const FFTSample *input) | ||
| 74 | { | ||
| 75 | s->imdct_half(s, output, input); | ||
| 76 | } | ||
| 77 | |||
| 78 | void av_mdct_calc(FFTContext *s, FFTSample *output, const FFTSample *input) | ||
| 79 | { | ||
| 80 | s->mdct_calc(s, output, input); | ||
| 81 | } | ||
| 82 | |||
| 83 | av_cold void av_mdct_end(FFTContext *s) | ||
| 84 | { | ||
| 85 | if (s) { | ||
| 86 | ff_mdct_end(s); | ||
| 87 | av_free(s); | ||
| 88 | } | ||
| 89 | } | ||
| 90 | |||
| 91 | #endif /* CONFIG_MDCT */ | ||
| 92 | |||
| 93 | #if CONFIG_RDFT | ||
| 94 | |||
| 95 | ✗ | RDFTContext *av_rdft_init(int nbits, enum RDFTransformType trans) | |
| 96 | { | ||
| 97 | ✗ | RDFTContext *s = av_malloc(sizeof(*s)); | |
| 98 | |||
| 99 | ✗ | if (s && ff_rdft_init(s, nbits, trans)) | |
| 100 | ✗ | av_freep(&s); | |
| 101 | |||
| 102 | ✗ | return s; | |
| 103 | } | ||
| 104 | |||
| 105 | ✗ | void av_rdft_calc(RDFTContext *s, FFTSample *data) | |
| 106 | { | ||
| 107 | ✗ | s->rdft_calc(s, data); | |
| 108 | } | ||
| 109 | |||
| 110 | ✗ | av_cold void av_rdft_end(RDFTContext *s) | |
| 111 | { | ||
| 112 | ✗ | if (s) { | |
| 113 | ✗ | ff_rdft_end(s); | |
| 114 | ✗ | av_free(s); | |
| 115 | } | ||
| 116 | } | ||
| 117 | |||
| 118 | #endif /* CONFIG_RDFT */ | ||
| 119 | |||
| 120 | #if CONFIG_DCT | ||
| 121 | |||
| 122 | ✗ | DCTContext *av_dct_init(int nbits, enum DCTTransformType inverse) | |
| 123 | { | ||
| 124 | ✗ | DCTContext *s = av_malloc(sizeof(*s)); | |
| 125 | |||
| 126 | ✗ | if (s && ff_dct_init(s, nbits, inverse)) | |
| 127 | ✗ | av_freep(&s); | |
| 128 | |||
| 129 | ✗ | return s; | |
| 130 | } | ||
| 131 | |||
| 132 | ✗ | void av_dct_calc(DCTContext *s, FFTSample *data) | |
| 133 | { | ||
| 134 | ✗ | s->dct_calc(s, data); | |
| 135 | } | ||
| 136 | |||
| 137 | ✗ | av_cold void av_dct_end(DCTContext *s) | |
| 138 | { | ||
| 139 | ✗ | if (s) { | |
| 140 | ✗ | ff_dct_end(s); | |
| 141 | ✗ | av_free(s); | |
| 142 | } | ||
| 143 | } | ||
| 144 | |||
| 145 | #endif /* CONFIG_DCT */ | ||
| 146 |