FFmpeg
sinewin_tablegen_template.c
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1 /*
2  * Generate a header file for hardcoded sine windows
3  *
4  * Copyright (c) 2009 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 #include <stdlib.h>
24 #include "libavcodec/aac_defines.h"
25 #define CONFIG_HARDCODED_TABLES 0
26 
27 #if USE_FIXED
28 #define WRITE_FUNC write_int32_t_array
29 #else
30 #define WRITE_FUNC write_float_array
31 #endif
32 
33 #define SINETABLE_CONST
34 #define SINETABLE(size) \
35  INTFLOAT AAC_RENAME(ff_sine_##size)[size]
36 #define SINETABLE120960(size) \
37  INTFLOAT AAC_RENAME(ff_sine_##size)[size]
38 #define FF_ARRAY_ELEMS(a) (sizeof(a) / sizeof((a)[0]))
39 #include "sinewin_tablegen.h"
40 #include "tableprint.h"
41 
42 int main(void)
43 {
44  int i;
45 
47 
48  for (i = 5; i <= 13; i++) {
50  printf("SINETABLE(%4i) = {\n", 1 << i);
51  WRITE_FUNC(AAC_RENAME(ff_sine_windows)[i], 1 << i);
52  printf("};\n");
53  }
54 
55  return 0;
56 }
ff_init_ff_sine_windows
void AAC_RENAME() ff_init_ff_sine_windows(int index)
initialize the specified entry of ff_sine_windows
Definition: sinewin_tablegen.h:76
main
int main(void)
Definition: sinewin_tablegen_template.c:42
tableprint.h
WRITE_FUNC
#define WRITE_FUNC
Definition: sinewin_tablegen_template.c:30
sinewin_tablegen.h
write_fileheader
write_fileheader() adds some minor things like a "this is a generated file" comment and some standard includes. tablegen.h defines some write functions for one- and two-dimensional arrays for standard types - they print only the "core" parts so they are easier to reuse for multi-dimensional arrays so the outermost
Definition: tablegen.txt:39
printf
printf("static const uint8_t my_array[100] = {\n")
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:259
AAC_RENAME
#define AAC_RENAME(x)
Definition: aac_defines.h:84
aac_defines.h