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Diffstat (limited to 'apps/codecs/lib/fft.h')
-rw-r--r-- | apps/codecs/lib/fft.h | 64 |
1 files changed, 0 insertions, 64 deletions
diff --git a/apps/codecs/lib/fft.h b/apps/codecs/lib/fft.h deleted file mode 100644 index 302a3b3996..0000000000 --- a/apps/codecs/lib/fft.h +++ /dev/null | |||
@@ -1,64 +0,0 @@ | |||
1 | /* | ||
2 | * WMA compatible decoder | ||
3 | * Copyright (c) 2002 The FFmpeg Project. | ||
4 | * | ||
5 | * This library is free software; you can redistribute it and/or | ||
6 | * modify it under the terms of the GNU Lesser General Public | ||
7 | * License as published by the Free Software Foundation; either | ||
8 | * version 2 of the License, or (at your option) any later version. | ||
9 | * | ||
10 | * This library is distributed in the hope that it will be useful, | ||
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | * Lesser General Public License for more details. | ||
14 | * | ||
15 | * You should have received a copy of the GNU Lesser General Public | ||
16 | * License along with this library; if not, write to the Free Software | ||
17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
18 | */ | ||
19 | #ifndef CODECLIB_FFT_H_INCLUDED | ||
20 | #define CODECLIB_FFT_H_INCLUDED | ||
21 | |||
22 | #include <inttypes.h> | ||
23 | typedef int32_t fixed32; | ||
24 | typedef int64_t fixed64; | ||
25 | |||
26 | #define FFT_FIXED | ||
27 | |||
28 | #ifdef FFT_FIXED | ||
29 | typedef fixed32 FFTSample; | ||
30 | #else /* FFT_FIXED */ | ||
31 | typedef float FFTSample; | ||
32 | #endif /* FFT_FIXED */ | ||
33 | |||
34 | typedef struct FFTComplex { | ||
35 | FFTSample re, im; | ||
36 | } FFTComplex; | ||
37 | |||
38 | typedef struct FFTContext { | ||
39 | int nbits; | ||
40 | int inverse; | ||
41 | uint16_t *revtab; | ||
42 | int mdct_size; /* size of MDCT (i.e. number of input data * 2) */ | ||
43 | int mdct_bits; /* n = 2^nbits */ | ||
44 | /* pre/post rotation tables */ | ||
45 | FFTSample *tcos; | ||
46 | FFTSample *tsin; | ||
47 | void (*fft_permute)(struct FFTContext *s, FFTComplex *z); | ||
48 | void (*fft_calc)(struct FFTContext *s, FFTComplex *z); | ||
49 | void (*imdct_calc)(struct FFTContext *s, FFTSample *output, const FFTSample *input); | ||
50 | void (*imdct_half)(struct FFTContext *s, FFTSample *output, const FFTSample *input); | ||
51 | void (*mdct_calc)(struct FFTContext *s, FFTSample *output, const FFTSample *input); | ||
52 | int split_radix; | ||
53 | int permutation; | ||
54 | #define FF_MDCT_PERM_NONE 0 | ||
55 | #define FF_MDCT_PERM_INTERLEAVE 1 | ||
56 | } FFTContext; | ||
57 | |||
58 | // internal api (fft<->mdct) | ||
59 | //int fft_calc_unscaled(FFTContext *s, FFTComplex *z); | ||
60 | //void ff_fft_permute_c(FFTContext *s, FFTComplex *z); // internal only? | ||
61 | void ff_fft_calc_c(int nbits, FFTComplex *z); | ||
62 | |||
63 | #endif // CODECLIB_FFT_H_INCLUDED | ||
64 | |||