* Updated changelog and package files.

[vlc] / include / ac3_imdct.h

diff --git a/include/ac3_imdct.h b/include/ac3_imdct.h
index c2c11d80f5e155ed56a4210442cf6e3b37c5be66..cbc8a44c20e59be19cf0b998605baf289f7ff00d 100644 (file)
--- a/include/ac3_imdct.h
+++ b/include/ac3_imdct.h
@@ -1,2 +1,81 @@
-void imdct( ac3dec_thread_t * p_ac3dec );
-void imdct_init( void );
+/*****************************************************************************
+ * ac3_imdct.h : AC3 IMDCT types
+ *****************************************************************************
+ * Copyright (C) 1999, 2000 VideoLAN
+ * $Id: ac3_imdct.h,v 1.7 2002/04/05 01:05:22 gbazin Exp $
+ *
+ * Authors: Michel Kaempf <maxx@via.ecp.fr>
+ *          Renaud Dartus <reno@videolan.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
+ *****************************************************************************/
+
+typedef struct complex_s {
+    float real;
+    float imag;
+} complex_t;
+
+#define N 512
+
+typedef struct imdct_s
+{
+    complex_t * buf;
+    void *      buf_orig;                         /* pointer before memalign */
+
+    /* Delay buffer for time domain interleaving */
+    float * delay;
+    void *  delay_orig;                           /* pointer before memalign */
+    float * delay1;
+    void *  delay1_orig;                          /* pointer before memalign */
+
+    /* Twiddle factors for IMDCT */
+    float * xcos1;
+    void *  xcos1_orig;                           /* pointer before memalign */
+    float * xsin1;
+    void *  xsin1_orig;                           /* pointer before memalign */
+    float * xcos2;
+    void *  xcos2_orig;                           /* pointer before memalign */
+    float * xsin2;
+    void *  xsin2_orig;                           /* pointer before memalign */
+    float * xcos_sin_sse;
+    void *  xcos_sin_sse_orig;                    /* pointer before memalign */
+   
+    /* Twiddle factor LUT */
+    complex_t * w_2;
+    void *      w_2_orig;                         /* pointer before memalign */
+    complex_t * w_4;
+    void *      w_4_orig;                         /* pointer before memalign */
+    complex_t * w_8;
+    void *      w_8_orig;                         /* pointer before memalign */
+    complex_t * w_16;
+    void *      w_16_orig;                        /* pointer before memalign */
+    complex_t * w_32;
+    void *      w_32_orig;                        /* pointer before memalign */
+    complex_t * w_64;
+    void *      w_64_orig;                        /* pointer before memalign */
+    complex_t * w_1;
+    void *      w_1_orig;                         /* pointer before memalign */
+    
+    /* Module used and shortcuts */
+    struct module_s * p_module;
+    void (*pf_imdct_init) (struct imdct_s *);
+    //void (*pf_fft_64p) (complex_t *a);
+    void (*pf_imdct_256)(struct imdct_s *, float data[], float delay[]);
+    void (*pf_imdct_256_nol)(struct imdct_s *, float data[], float delay[]);
+    void (*pf_imdct_512)(struct imdct_s *, float data[], float delay[]);
+    void (*pf_imdct_512_nol)(struct imdct_s *, float data[], float delay[]);
+
+} imdct_t;
+