FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/avfft.c
Date: 2021-09-23 20:34:37
Exec Total Coverage
Lines: 54 60 90.0%
Branches: 14 24 58.3%

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 20 FFTContext *av_fft_init(int nbits, int inverse)
29 {
30 20 FFTContext *s = av_mallocz(sizeof(*s));
31
32
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20 if (s && ff_fft_init(s, nbits, inverse))
33 av_freep(&s);
34
35 20 return s;
36 }
37
38 1064 void av_fft_permute(FFTContext *s, FFTComplex *z)
39 {
40 1064 s->fft_permute(s, z);
41 1064 }
42
43 1064 void av_fft_calc(FFTContext *s, FFTComplex *z)
44 {
45 1064 s->fft_calc(s, z);
46 1064 }
47
48 28 av_cold void av_fft_end(FFTContext *s)
49 {
50
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28 if (s) {
51 20 ff_fft_end(s);
52 20 av_free(s);
53 }
54 28 }
55
56 #if CONFIG_MDCT
57
58 18 FFTContext *av_mdct_init(int nbits, int inverse, double scale)
59 {
60 18 FFTContext *s = av_malloc(sizeof(*s));
61
62
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18 if (s && ff_mdct_init(s, nbits, inverse, scale))
63 av_freep(&s);
64
65 18 return s;
66 }
67
68 9 void av_imdct_calc(FFTContext *s, FFTSample *output, const FFTSample *input)
69 {
70 9 s->imdct_calc(s, output, input);
71 9 }
72
73 void av_imdct_half(FFTContext *s, FFTSample *output, const FFTSample *input)
74 {
75 s->imdct_half(s, output, input);
76 }
77
78 9 void av_mdct_calc(FFTContext *s, FFTSample *output, const FFTSample *input)
79 {
80 9 s->mdct_calc(s, output, input);
81 9 }
82
83 18 av_cold void av_mdct_end(FFTContext *s)
84 {
85
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18 if (s) {
86 18 ff_mdct_end(s);
87 18 av_free(s);
88 }
89 18 }
90
91 #endif /* CONFIG_MDCT */
92
93 #if CONFIG_RDFT
94
95 33 RDFTContext *av_rdft_init(int nbits, enum RDFTransformType trans)
96 {
97 33 RDFTContext *s = av_malloc(sizeof(*s));
98
99
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33 if (s && ff_rdft_init(s, nbits, trans))
100 av_freep(&s);
101
102 33 return s;
103 }
104
105 1552 void av_rdft_calc(RDFTContext *s, FFTSample *data)
106 {
107 1552 s->rdft_calc(s, data);
108 1552 }
109
110 78 av_cold void av_rdft_end(RDFTContext *s)
111 {
112
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78 if (s) {
113 33 ff_rdft_end(s);
114 33 av_free(s);
115 }
116 78 }
117
118 #endif /* CONFIG_RDFT */
119
120 #if CONFIG_DCT
121
122 18 DCTContext *av_dct_init(int nbits, enum DCTTransformType inverse)
123 {
124 18 DCTContext *s = av_malloc(sizeof(*s));
125
126
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18 if (s && ff_dct_init(s, nbits, inverse))
127 av_freep(&s);
128
129 18 return s;
130 }
131
132 18 void av_dct_calc(DCTContext *s, FFTSample *data)
133 {
134 18 s->dct_calc(s, data);
135 18 }
136
137 18 av_cold void av_dct_end(DCTContext *s)
138 {
139
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18 if (s) {
140 18 ff_dct_end(s);
141 18 av_free(s);
142 }
143 18 }
144
145 #endif /* CONFIG_DCT */
146