-
Notifications
You must be signed in to change notification settings - Fork 0
/
audio_formats.h
356 lines (249 loc) · 13.6 KB
/
audio_formats.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
/*
Copyright (C) 2019 BrerDawg
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
//audio_formats.h
//v1.05 ---- 05-jun-2017
//v1.08
//!! see usage examples in 'audio_formats.cpp'
#ifndef audio_formats_h
#define audio_formats_h
#include <stdio.h>
#include <string.h>
#include <fcntl.h>
#include <time.h>
#include <locale.h>
#include <string>
#include <vector>
#include <wchar.h>
#include <stdlib.h>
#include <math.h>
//linux code
#ifndef compile_for_windows
#include <X11/Intrinsic.h>
#include <X11/StringDefs.h>
#include <X11/Shell.h>
//#include <X11/Xaw/Form.h>
//#include <X11/Xaw/Command.h>
#define _FILE_OFFSET_BITS 64 //large file handling
//#define _LARGE_FILES
#include <dirent.h>
#include <errno.h>
#include <sys/wait.h>
#include <sys/stat.h>
#include <syslog.h> //MakeIniPathFilename(..) needs this
#endif
//windows code
#ifdef compile_for_windows
#include <windows.h>
#include <process.h>
#include <winnls.h>
#include <share.h>
#include <fcntl.h>
#include <io.h>
#include <iostream>
#include <fstream>
#include <conio.h>
#define WC_ERR_INVALID_CHARS 0x0080 //missing from gcc's winnls.h
#endif
#include "GCProfile.h"
//#include "sdr_global.h" //this holds the flts type def, e.g: typedef double flts;
using namespace std;
#define cn_malloc_granularity 16 * 1024 * 1024 //used for malloc storage method (non vector based)
#define cn_malloc_max_size 256 * 1024 * 1024 + 1 //put a limit on how big realloc storage can grow (space for at least 33554432 doubles[assuming 8 bytes per double], @48KHz amounts to ~699 secs [11 mins:39 secs] )
#define cn_audio_formats_buf_siz 1024 * 1024 * 16 //make sure this is divisible by 16 so double prec(64 bit) stereo samples (128 bit total [16 bytes])
//occupy a buffer read in whole units, ie: only whole stereo samples will fit in a single buffer fread(..)
typedef double flts; //define numerical calc precision: float/double
enum en_audio_formats
{
en_af_unknown, //unknown audio format
en_af_raw_pcm, //int 16 bit
en_af_raw_single_prec, //float 32 bit floating point
en_af_raw_double_prec, //double 64 bit floating point
en_af_sun, //encoding 1 of ulaw, encoding 3 for 16 bit PCM
en_af_wav_pcm, //only 16 bit PCM format supported
en_af_aiff,
};
//---------------------------------
//simple wave file RIFF format support (only PCM format supported at present)
#define cn_riff_hdr_ckid 0 //+0 = 0
#define cn_riff_hdr_cksize 4 //+0 = 4
#define cn_riff_hdr_waveid 8 //+0 = 8
#define cn_riff_fmt_chunk_ckid 0 //+12 = 12
#define cn_riff_fmt_chunk_cksize 4 //+12 = 16
#define cn_riff_fmt_chunk_wformat_tag 8 //+12 = 20
#define cn_riff_fmt_chunk_channels 10 //+12 = 22
#define cn_riff_fmt_chunk_samp_per_sec 12 //+12 = 24
#define cn_riff_fmt_chunk_avg_bytes_per_sec 16 //+12 = 28
#define cn_riff_fmt_chunk_block_align 20 //+12 = 32
#define cn_riff_fmt_chunk_bits_per_samp 22 //+12 = 34
//if 'cn_riff_fmt_chunk_cksize' has 16 stored in it the below defines are not used, the data chunk follows immediately
//#define cn_riff_fmt_chunk_cbsize 24 //+12 = 36
//#define cn_riff_fmt_chunk_valid_bits_per_samp 26 //+12 = 38
//#define cn_riff_fmt_chunk_chan_mask 28 //+12 = 42
//#define cn_riff_fmt_chunk_sub_format 32 //+12 = 44
#define cn_riff_data_chunk_ckid 0 //+12 = 36
#define cn_riff_data_chunk_cksize 4 //+12 = 40
//---------------------------------
//---------------------------------
//simple aiff file format support (only PCM format supported at present)
#define cn_aiff_form_ckid 0 //4 FORM
#define cn_aiff_form_cksize 4 //4
#define cn_aiff_aiff_ckid 8 //4 AIFF
#define cn_aiff_comm_ckid 12 //4 COMM
#define cn_aiff_comm_cksize 16 //4
#define cn_aiff_comm_channels 20 //2
#define cn_aiff_comm_sample_frames 22 //4
#define cn_aiff_comm_sample_size 26 //2
#define cn_aiff_comm_sample_srate 28 //10 apple SANE, 80 bit IEEE Standard 754 floating point number, long double, big endian
#define cn_aiff_comm_ssnd_ckid 38 //4 SSND
#define cn_aiff_comm_ssnd_cksize 42 //4
#define cn_aiff_comm_ssnd_offset 46 //4 this is not used and is usually 0
#define cn_aiff_comm_ssnd_block_size 50 //4 this is not used and is usually 0
#define cn_aiff_comm_ssnd_sample_data 54 //4 this is where the data samples start, big endian pcm
/* aiff file hex dump, 48000Hz, 2 channel, 16 bit (file length: 1997774 bytes, big endian, holds 1997728 - 8 = 1997720 samples )
0000000000000000: 46 4f 52 4d 00 1e 7b c6 41 49 46 46 43 4f 4d 4d FORM..{.AIFFCOMM
0000000000000010: 00 00 00 12 00 02 00 07 9e e6 00 10 40 0e bb 80 ............@...
0000000000000020: 00 00 00 00 00 00 53 53 4e 44 00 1e 7b a0 00 00 ......SSND..{...
0000000000000030: 00 00 00 00 00 00 00 9c 00 00 00 a3 00 00 00 a1 ................
0000000000000040: 00 00 00 b2 00 00 00 ab 00 00 00 a0 00 00 00 89 ................
0000000000000050: 00 00 00 81 00 00 00 58 00 00 00 62 00 00 00 55 .......X...b...U
0000000000000060: 00 00 00 31 00 00 00 2a 00 00 00 2b 00 00 00 26 ...1...*...+...&
0000000000000070: 00 00 00 1a 00 00 00 27 00 00 00 54 00 00 00 6b .......'...T...k
0000000000000080: 00 00 00 5d 00 00 00 5f 00 00 00 57 00 00 00 56 ...]..._...W...V
0000000000000090: 00 00 00 44 00 00 00 4a 00 00 00 49 00 00 00 24 ...D...J...I...$
00000000000000a0: 00 00 00 21 00 00 00 24 00 00 00 2c 00 00 00 27 ...!...$...,...'
00000000000000b0: 00 00 00 30 00 00 00 4a 00 00 00 5a 00 00 00 4d ...0...J...Z...M
00000000000000c0: 00 00 00 40 00 00 00 44 00 00 00 44 00 00 00 54 ...@...D...D...T
00000000000000d0: 00 00 00 5b 00 00 00 5c 00 00 00 77 00 00 00 85 ...[...\...w....
00000000000000e0: 00 00 00 74 00 00 00 59 00 00 00 4d 00 00 00 59 ...t...Y...M...Y
00000000000000f0: 00 00 00 6a 00 00 00 72 00 00 00 71 00 00 00 82 ...j...r...q....
0000000000000100: 00 00 00 80 00 00 00 7f 00 00 00 77 00 00 00 64 ..........w...d
0000000000000110: 00 00 00 69 00 00 00 59 00 00 00 68 00 00 00 54 ...i...Y...h...T
0000000000000120: 00 00 00 36 00 00 00 2d 00 00 00 33 00 00 00 59 ...6...-...3...Y
0000000000000130: 00 00 00 5c 00 00 00 5c 00 00 00 51 00 00 00 53 ...\...\...Q...S
0000000000000140: 00 00 00 58 00 00 00 63 00 00 00 71 00 00 00 61 ...X...c...q...a
0000000000000150: 00 00 00 45 00 00 00 46 00 00 00 45 00 00 00 22 ...E...F...E..."
0000000000000160: 00 00 00 1a 00 00 00 1a 00 00 00 4e 00 00 00 6a ...........N...j
0000000000000170: 00 00 00 67 00 00 00 6e 00 00 00 68 00 00 00 69 ...g...n...h...i
0000000000000180: 00 00 00 54 00 00 00 4e 00 00 00 54 00 00 00 54 ...T...N...T...T
0000000000000190: 00 00 00 56 00 00 00 53 00 00 00 43 00 00 00 3c ...V...S...C...<
00000000000001a0: 00 00 00 51 00 00 00 78 00 00 00 90 00 00 00 7c ...Q...x.......|
00000000000001b0: 00 00 00 52 00 00 00 54 00 00 00 58 00 00 00 3d ...R...T...X...=
00000000000001c0: 00 00 00 3a 00 00 00 42 00 00 00 88 00 00 00 9d ...:...B........
00000000000001d0: 00 00 00 87 00 00 00 84 00 00 00 75 00 00 00 7f ...........u...
00000000000001e0: 00 00 00 6d 00 00 00 71 00 00 00 69 00 00 00 65 ...m...q...i...e
00000000000001f0: 00 00 00 61 00 00 00 64 00 00 00 86 00 00 00 88 ...a...d........
0000000000000200: 00 00 00 84 00 00 00 82 00 00 00 81 00 00 00 73 ...............s
*/
//---------------------------------
//holds one audio file's data !! see usage examples in 'audio_formats.cpp'
struct st_audio_formats_tag
{
string path;
string fname;
en_audio_formats format;
unsigned int srate;
unsigned int encoding; //for sav_sun(), load_sun(): encoding 1 = 8 bit u-law, 1 or 2 channel, encoding 3 = 16 bit pcm, 1 or 2 channel
unsigned int channels;
unsigned int offset;
bool is_big_endian;
bool bits_per_sample;
vector<double> vch0;
vector<double> vch1;
};
class audio_formats
{
private:
int req_scale_down_by_peak_int_val;
int req_peak_int_val;
en_audio_formats fp_audio_format; //used with fp based methods
int fp_srate;
int fp_channels;
int fp_bytes_written;
int fp_offset;
int fp_encoding;
int fp_is_big_endian;
public:
bool verb;
string log; //holds a cumulative number of string showing progress and any errors
bool log_to_printf; //if to issue a printf as well
string sid; //a string name to help debug objs
unsigned int allocsz_ch0, allocsz_ch1; //used for malloc methods
unsigned int sizech0, sizech1;
double *pch0, *pch1;
FILE *fileptr;
string pathname; //used with fp based methods
uint64_t file_size;
unsigned int buf_size;
unsigned char *ucbf;
double *bf0;
double *bf1;
float *f_bf0;
float *f_bf1;
public:
audio_formats();
~audio_formats();
int load( string path, string fname, int scale_down_by_peak_int_val, st_audio_formats_tag &af );
int load_malloc( string path, string fname, int scale_down_by_peak_int_val, st_audio_formats_tag &af );
bool save( string path, string fname, int peak_int_val, st_audio_formats_tag &af );
bool save_malloc( string path, string fname, int peak_int_val, st_audio_formats_tag &af );
bool sample_buf_load_flts( st_audio_formats_tag &af, flts* fltsbuf, unsigned int sample_cnt_to_load, unsigned int &actually_loaded );
bool sample_buf_load_flts_malloc( st_audio_formats_tag &af, flts* fltsbuf, unsigned int sample_cnt_to_load, unsigned int &actually_loaded );
bool make_tone( double amp0, double freq0, double phase0, double amp1, double freq1, double phase1, double dur, st_audio_formats_tag &af );
bool srate_change( st_audio_formats_tag &afout );
bool normalise( double max_val, st_audio_formats_tag &af );
bool find_file_format( string path, string fname, en_audio_formats &fmt );
bool push_ch0( double dd );
bool push_ch1( double dd );
bool clear_ch0();
bool clear_ch1();
bool copypush_ch0( double *pch, unsigned int count );
bool copypush_ch1( double *pch, unsigned int count );
bool fir_filter( int which_chan, vector<double> &vcoeff );
int fp_open_double( string path, string fname, unsigned int bfsz, int scale_down_by_peak_int_val, st_audio_formats_tag &af );
int fp_read_double( unsigned int count, st_audio_formats_tag &af );
int fp_create_double( string path, string fname, unsigned int bfsz, int peak_int_val, st_audio_formats_tag &af );
int fp_write_double( unsigned int count, st_audio_formats_tag &af );
int fp_open_float( string path, string fname, unsigned int bfsz, int scale_down_by_peak_int_val, st_audio_formats_tag &af );
int fp_read_float( unsigned int count, st_audio_formats_tag &af );
int fp_create_float( string path, string fname, unsigned int bfsz, int peak_int_val, st_audio_formats_tag &af );
int fp_write_float( unsigned int count, st_audio_formats_tag &af );
private:
int load_raw_pcm( string path, string fname, int scale_down_by_peak_int_val, st_audio_formats_tag &af );
int load_raw_pcm_malloc( string path, string fname, int scale_down_by_peak_int_val, st_audio_formats_tag &af );
int load_raw_single_prec( string path, string fname, int scale_down_by_peak_int_val, st_audio_formats_tag &af );
int load_raw_single_prec_malloc( string path, string fname, int scale_down_by_peak_int_val, st_audio_formats_tag &af );
int load_raw_double_prec( string path, string fname, int scale_down_by_peak_int_val, st_audio_formats_tag &af );
int load_raw_double_prec_malloc( string path, string fname, int scale_down_by_peak_int_val, st_audio_formats_tag &af );
bool save_raw( string path, string fname, int peak_int_val, st_audio_formats_tag &af );
bool save_raw_malloc( string path, string fname, int peak_int_val, st_audio_formats_tag &af );
int load_sun( string path, string fname, int scale_down_by_peak_int_val, st_audio_formats_tag &af );
int load_sun_malloc( string path, string fname, int scale_down_by_peak_int_val, st_audio_formats_tag &af );
bool save_sun( string path, string fname, int peak_int_val, st_audio_formats_tag &af );
bool save_sun_malloc( string path, string fname, int peak_int_val, st_audio_formats_tag &af );
int load_wav( string path, string fname, int scale_down_by_peak_int_val, st_audio_formats_tag &af );
int load_wav_malloc( string path, string fname, int scale_down_by_peak_int_val, st_audio_formats_tag &af );
bool save_wav( string path, string fname, int peak_int_val, st_audio_formats_tag &af );
bool save_wav_malloc( string path, string fname, int peak_int_val, st_audio_formats_tag &af );
int load_aiff( string path, string fname, int scale_down_by_peak_int_val, st_audio_formats_tag &af );
int load_aiff_malloc( string path, string fname, int scale_down_by_peak_int_val, st_audio_formats_tag &af );
bool save_aiff( string path, string fname, int peak_int_val, st_audio_formats_tag &af );
bool save_aiff_malloc( string path, string fname, int peak_int_val, st_audio_formats_tag &af );
bool find_in_file( FILE *fp, string fname, unsigned int &found_at_pos );
unsigned char linear2ulaw( int sample );
int ulaw2linear( unsigned char ulawbyte );
void logpf( const char *fmt,... );
void fp_write_close_free_mem();
};
#endif