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sinewin.h
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1 /*
2  * Copyright (c) 2008 Robert Swain
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 #ifndef AVCODEC_SINEWIN_H
22 #define AVCODEC_SINEWIN_H
23 
24 #include "config.h"
25 #include "libavutil/mem.h"
26 #include "libavcodec/aac_defines.h"
27 
28 #if CONFIG_HARDCODED_TABLES
29 # define SINETABLE_CONST const
30 #else
31 # define SINETABLE_CONST
32 #endif
33 
34 #ifndef USE_FIXED
35 #define USE_FIXED 0
36 #endif
37 
38 #define SINETABLE(size) \
39  SINETABLE_CONST DECLARE_ALIGNED(32, INTFLOAT, AAC_RENAME(ff_sine_##size))[size]
40 
41 /**
42  * Generate a sine window.
43  * @param window pointer to half window
44  * @param n size of half window
45  */
47 
48 /**
49  * initialize the specified entry of ff_sine_windows
50  */
52 
53 extern SINETABLE( 32);
54 extern SINETABLE( 64);
55 extern SINETABLE( 128);
56 extern SINETABLE( 256);
57 extern SINETABLE( 512);
58 extern SINETABLE(1024);
59 extern SINETABLE(2048);
60 extern SINETABLE(4096);
61 extern SINETABLE(8192);
62 
63 extern SINETABLE_CONST INTFLOAT * const AAC_RENAME(ff_sine_windows)[14];
64 
65 #endif /* AVCODEC_SINEWIN_H */
SINETABLE_CONST INTFLOAT *const AAC_RENAME(ff_sine_windows)[14]
#define SINETABLE_CONST
Definition: sinewin.h:31
Memory handling functions.
float INTFLOAT
Definition: aac_defines.h:85
static SDL_Window * window
Definition: ffplay.c:362
#define SINETABLE(size)
Definition: sinewin.h:38
int n
Definition: avisynth_c.h:684
void AAC_RENAME() ff_sine_window_init(INTFLOAT *window, int n)
Generate a sine window.
int index
Definition: gxfenc.c:89
void AAC_RENAME() ff_init_ff_sine_windows(int index)
initialize the specified entry of ff_sine_windows