1 /*****************************************************************************
2 * ac3_imdct.h : AC3 IMDCT types
3 *****************************************************************************
4 * Copyright (C) 1999, 2000 VideoLAN
5 * $Id: ac3_imdct.h,v 1.7 2002/04/05 01:05:22 gbazin Exp $
7 * Authors: Michel Kaempf <maxx@via.ecp.fr>
8 * Renaud Dartus <reno@videolan.org>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
23 *****************************************************************************/
25 typedef struct complex_s {
32 typedef struct imdct_s
35 void * buf_orig; /* pointer before memalign */
37 /* Delay buffer for time domain interleaving */
39 void * delay_orig; /* pointer before memalign */
41 void * delay1_orig; /* pointer before memalign */
43 /* Twiddle factors for IMDCT */
45 void * xcos1_orig; /* pointer before memalign */
47 void * xsin1_orig; /* pointer before memalign */
49 void * xcos2_orig; /* pointer before memalign */
51 void * xsin2_orig; /* pointer before memalign */
53 void * xcos_sin_sse_orig; /* pointer before memalign */
55 /* Twiddle factor LUT */
57 void * w_2_orig; /* pointer before memalign */
59 void * w_4_orig; /* pointer before memalign */
61 void * w_8_orig; /* pointer before memalign */
63 void * w_16_orig; /* pointer before memalign */
65 void * w_32_orig; /* pointer before memalign */
67 void * w_64_orig; /* pointer before memalign */
69 void * w_1_orig; /* pointer before memalign */
71 /* Module used and shortcuts */
72 struct module_s * p_module;
73 void (*pf_imdct_init) (struct imdct_s *);
74 //void (*pf_fft_64p) (complex_t *a);
75 void (*pf_imdct_256)(struct imdct_s *, float data[], float delay[]);
76 void (*pf_imdct_256_nol)(struct imdct_s *, float data[], float delay[]);
77 void (*pf_imdct_512)(struct imdct_s *, float data[], float delay[]);
78 void (*pf_imdct_512_nol)(struct imdct_s *, float data[], float delay[]);