-
Notifications
You must be signed in to change notification settings - Fork 246
/
Copy pathcava.c
1362 lines (1217 loc) · 47.8 KB
/
cava.c
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
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
#include <locale.h>
#ifdef HAVE_ALLOCA_H
#include <alloca.h>
#else
#include <stdlib.h>
#endif
#include <fcntl.h>
#include <math.h>
#ifndef M_PI
#define M_PI 3.1415926535897932385
#endif
#include <stdio.h>
#include <stdlib.h>
#ifndef _WIN32
#include <ctype.h>
#include <dirent.h>
#include <getopt.h>
#include <sys/ioctl.h>
#include <termios.h>
#include <unistd.h>
#endif
#ifdef _WIN32
#include "input/winscap.h"
#include <windows.h>
#define PATH_MAX 260
#define PACKAGE "cava"
#define VERSION "0.10.4"
#define _CRT_SECURE_NO_WARNINGS 1
#endif // _WIN32
#include <signal.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <time.h>
#include "cavacore.h"
#include "config.h"
#include "debug.h"
#include "util.h"
#ifdef SDL
#include "output/sdl_cava.h"
#endif
#ifdef SDL_GLSL
#include "output/sdl_glsl.h"
#endif
#include "input/common.h"
#include "output/noritake.h"
#include "output/raw.h"
#include "output/terminal_noncurses.h"
#ifndef _WIN32
#ifdef NCURSES
#include "output/terminal_bcircle.h"
#include "output/terminal_ncurses.h"
#include <curses.h>
#endif
#include "input/alsa.h"
#include "input/fifo.h"
#include "input/jack.h"
#include "input/oss.h"
#include "input/pipewire.h"
#include "input/portaudio.h"
#include "input/pulse.h"
#include "input/shmem.h"
#include "input/sndio.h"
#endif
#ifdef __GNUC__
// curses.h or other sources may already define
#undef GCC_UNUSED
#define GCC_UNUSED __attribute__((unused))
#else
#define GCC_UNUSED /* nothing */
#endif
#ifdef _WIN32
char *optarg = NULL;
int optind = 1;
static int getopt(int argc, char *const argv[], const char *optstring) {
if ((optind >= argc) || (argv[optind][0] != '-') || (argv[optind][0] == 0)) {
return -1;
}
int opt = argv[optind][1];
const char *p = strchr(optstring, opt);
if (p == NULL) {
return '?';
}
if (p[1] == ':') {
optind++;
if (optind >= argc) {
return '?';
}
optarg = argv[optind];
optind++;
}
return opt;
}
#endif
// used by sig handler
// needs to know output mode in order to clean up terminal
int output_mode;
// whether we should reload the config or not
int should_reload = 0;
// whether we should only reload colors or not
int reload_colors = 0;
// whether we should quit
int should_quit = 0;
// these variables are used only in main, but making them global
// will allow us to not free them on exit without ASan complaining
struct config_params p;
// general: cleanup
void cleanup(void) {
if (output_mode == OUTPUT_NCURSES) {
#ifdef NCURSES
cleanup_terminal_ncurses();
#else
;
#endif
} else if (output_mode == OUTPUT_NONCURSES) {
cleanup_terminal_noncurses();
} else if (output_mode == OUTPUT_SDL) {
#ifdef SDL
cleanup_sdl();
#else
;
#endif
#ifdef SDL_GLSL
} else if (output_mode == OUTPUT_SDL_GLSL) {
cleanup_sdl_glsl();
#else
;
#endif
}
}
// general: handle signals
#ifdef _WIN32
int sig_handler(DWORD sig_no) {
#else
void sig_handler(int sig_no) {
#endif
#ifndef _WIN32
if (sig_no == SIGUSR1) {
should_reload = 1;
return;
}
if (sig_no == SIGUSR2) {
reload_colors = 1;
return;
}
#endif
cleanup();
#ifdef _WIN32
if (sig_no == CTRL_C_EVENT || sig_no == CTRL_CLOSE_EVENT) {
sig_no = SIGINT;
} else {
return TRUE;
}
#endif
if (sig_no == SIGINT) {
printf("CTRL-C pressed -- goodbye\n");
}
signal(sig_no, SIG_DFL);
raise(sig_no);
#ifdef _WIN32
return TRUE;
#endif
}
#ifdef ALSA
static bool is_loop_device_for_sure(const char *text) {
const char *const LOOPBACK_DEVICE_PREFIX = "hw:Loopback,";
return strncmp(text, LOOPBACK_DEVICE_PREFIX, strlen(LOOPBACK_DEVICE_PREFIX)) == 0;
}
static bool directory_exists(const char *path) {
DIR *const dir = opendir(path);
if (dir == NULL)
return false;
closedir(dir);
return true;
}
#endif
float *monstercat_filter(float *bars, int number_of_bars, int waves, double monstercat,
int height) {
int z;
// process [smoothing]: monstercat-style "average"
int m_y, de;
float height_normalizer = 1.0;
if (height > 1000) {
height_normalizer = height / 912.76;
}
if (waves > 0) {
for (z = 0; z < number_of_bars; z++) { // waves
bars[z] = bars[z] / 1.25;
// if (bars[z] < 1) bars[z] = 1;
for (m_y = z - 1; m_y >= 0; m_y--) {
de = z - m_y;
bars[m_y] = max(bars[z] - height_normalizer * pow(de, 2), bars[m_y]);
}
for (m_y = z + 1; m_y < number_of_bars; m_y++) {
de = m_y - z;
bars[m_y] = max(bars[z] - height_normalizer * pow(de, 2), bars[m_y]);
}
}
} else if (monstercat > 0) {
for (z = 0; z < number_of_bars; z++) {
// if (bars[z] < 1)bars[z] = 1;
for (m_y = z - 1; m_y >= 0; m_y--) {
de = z - m_y;
bars[m_y] = max(bars[z] / pow(monstercat * 1.5, de), bars[m_y]);
}
for (m_y = z + 1; m_y < number_of_bars; m_y++) {
de = m_y - z;
bars[m_y] = max(bars[z] / pow(monstercat * 1.5, de), bars[m_y]);
}
}
}
return bars;
}
// general: entry point
int main(int argc, char **argv) {
#ifndef _WIN32
// general: console title
printf("%c]0;%s%c", '\033', PACKAGE, '\007');
#endif // !_WIN32
// general: handle command-line arguments
char configPath[PATH_MAX];
configPath[0] = '\0';
#ifdef _WIN32
if (!SetConsoleCtrlHandler(sig_handler, TRUE)) {
fprintf(stderr, "ERROR: Could not set control handler");
exit(EXIT_FAILURE);
}
#else
// general: handle Ctrl+C
struct sigaction action;
memset(&action, 0, sizeof(action));
action.sa_handler = &sig_handler;
sigaction(SIGINT, &action, NULL);
sigaction(SIGTERM, &action, NULL);
sigaction(SIGUSR1, &action, NULL);
sigaction(SIGUSR2, &action, NULL);
#endif
char *usage = "\n\
Usage : " PACKAGE " [options]\n\
Visualize audio input in terminal. \n\
\n\
Options:\n\
-p path to config file\n\
-v print version\n\
\n\
Keys:\n\
Up Increase sensitivity\n\
Down Decrease sensitivity\n\
Left Decrease number of bars\n\
Right Increase number of bars\n\
r Reload config\n\
c Reload colors only\n\
f Cycle foreground color\n\
b Cycle background color\n\
q Quit\n\
\n\
as of 0.4.0 all options are specified in config file, see in '/home/username/.config/cava/' \n";
int c;
while ((c = getopt(argc, argv, "p:vh")) != -1) {
switch (c) {
case 'p': // argument: config path
snprintf(configPath, sizeof(configPath), "%s", optarg);
break;
case 'h': // argument: print usage
printf("%s", usage);
return 1;
case '?': // argument: print usage
printf("%s", usage);
return 1;
case 'v': // argument: print version
printf(PACKAGE " " VERSION "\n");
return 0;
default: // argument: no arguments; exit
abort();
}
}
// general: main loop
while (1) {
debug("loading config\n");
// config: load
struct error_s error;
error.length = 0;
if (!load_config(configPath, &p, 0, &error)) {
fprintf(stderr, "Error loading config. %s", error.message);
exit(EXIT_FAILURE);
}
int inAtty = 0;
output_mode = p.output;
#ifndef _WIN32
if (output_mode == OUTPUT_NCURSES || output_mode == OUTPUT_NONCURSES) {
// Check if we're running in a tty
if (strncmp(ttyname(0), "/dev/tty", 8) == 0 || strcmp(ttyname(0), "/dev/console") == 0)
inAtty = 1;
// in macos vitual terminals are called ttys(xyz) and there are no ttys
if (strncmp(ttyname(0), "/dev/ttys", 9) == 0)
inAtty = 0;
if (inAtty) {
#ifdef CAVAFONT
// checking if cava psf font is installed in FONTDIR
FILE *font_file;
font_file = fopen(FONTDIR "/" FONTFILE, "r");
if (font_file) {
fclose(font_file);
#ifdef __FreeBSD__
system("vidcontrol -f " FONTDIR "/" FONTFILE " >/dev/null 2>&1");
#else
system("setfont " FONTDIR "/" FONTFILE " >/dev/null 2>&1");
#endif
} else {
// if not it might still be available, we dont know, must try
#ifdef __FreeBSD__
system("vidcontrol -f " FONTFILE " >/dev/null 2>&1");
#else
system("setfont " FONTFILE " >/dev/null 2>&1");
#endif
}
#endif // CAVAFONT
#ifndef __FreeBSD__
if (p.disable_blanking)
system("setterm -blank 0");
#endif
if (p.orientation != ORIENT_BOTTOM) {
cleanup();
fprintf(stderr, "only default bottom orientation is supported in tty\n");
exit(EXIT_FAILURE);
}
}
// We use unicode block characters to draw the bars and
// the locale var LANG must be set to use unicode chars.
// For some reason this var can't be retrieved with
// setlocale(LANG, NULL), so we get it with getenv.
// Also we can't set it with setlocale(LANG "") so we
// must set LC_ALL instead.
// Attempting to set to en_US if not set, if that lang
// is not installed and LANG is not set there will be
// no output, for more info see #109 #344
if (!getenv("LANG"))
setlocale(LC_ALL, "en_US.utf8");
else
setlocale(LC_ALL, "");
}
#endif
// input: init
struct audio_data audio;
memset(&audio, 0, sizeof(audio));
audio.source = malloc(1 + strlen(p.audio_source));
strcpy(audio.source, p.audio_source);
audio.format = -1;
audio.rate = 0;
audio.samples_counter = 0;
audio.channels = 2;
audio.IEEE_FLOAT = 0;
audio.autoconnect = 0;
audio.input_buffer_size = BUFFER_SIZE * audio.channels;
audio.cava_buffer_size = audio.input_buffer_size * 8;
audio.cava_in = (double *)malloc(audio.cava_buffer_size * sizeof(double));
memset(audio.cava_in, 0, sizeof(int) * audio.cava_buffer_size);
audio.threadparams = 0; // most input threads don't adjust the parameters
audio.terminate = 0;
debug("starting audio thread\n");
pthread_t p_thread;
int timeout_counter = 0;
int total_bar_height = 0;
struct timespec timeout_timer = {.tv_sec = 0, .tv_nsec = 1000000};
int thr_id GCC_UNUSED;
pthread_mutex_init(&audio.lock, NULL);
switch (p.input) {
#ifndef _WIN32
#ifdef ALSA
case INPUT_ALSA:
if (is_loop_device_for_sure(audio.source)) {
if (directory_exists("/sys/")) {
if (!directory_exists("/sys/module/snd_aloop/")) {
cleanup();
fprintf(stderr,
"Linux kernel module \"snd_aloop\" does not seem to be loaded.\n"
"Maybe run \"sudo modprobe snd_aloop\".\n");
exit(EXIT_FAILURE);
}
}
}
thr_id = pthread_create(&p_thread, NULL, input_alsa, (void *)&audio);
break;
#endif
case INPUT_FIFO:
audio.rate = p.samplerate;
audio.format = p.samplebits;
thr_id = pthread_create(&p_thread, NULL, input_fifo, (void *)&audio);
break;
#ifdef PULSE
case INPUT_PULSE:
audio.format = 16;
audio.rate = 44100;
if (strcmp(audio.source, "auto") == 0) {
getPulseDefaultSink((void *)&audio);
}
thr_id = pthread_create(&p_thread, NULL, input_pulse, (void *)&audio);
break;
#endif
#ifdef SNDIO
case INPUT_SNDIO:
audio.format = p.samplebits;
audio.rate = p.samplerate;
audio.channels = p.channels;
audio.threadparams = 1; // Sndio can adjust parameters
thr_id = pthread_create(&p_thread, NULL, input_sndio, (void *)&audio);
break;
#endif
#ifdef OSS
case INPUT_OSS:
audio.format = p.samplebits;
audio.rate = p.samplerate;
audio.channels = p.channels;
audio.threadparams = 1; // OSS can adjust parameters
thr_id = pthread_create(&p_thread, NULL, input_oss, (void *)&audio);
break;
#endif
#ifdef JACK
case INPUT_JACK:
audio.channels = p.channels;
audio.autoconnect = p.autoconnect;
audio.threadparams = 1; // JACK server provides parameters
thr_id = pthread_create(&p_thread, NULL, input_jack, (void *)&audio);
break;
#endif
case INPUT_SHMEM:
audio.format = 16;
thr_id = pthread_create(&p_thread, NULL, input_shmem, (void *)&audio);
break;
#ifdef PORTAUDIO
case INPUT_PORTAUDIO:
audio.format = 16;
audio.rate = 44100;
audio.threadparams = 1;
if (!strcmp(audio.source, "list")) {
input_portaudio((void *)&audio);
} else {
thr_id = pthread_create(&p_thread, NULL, input_portaudio, (void *)&audio);
}
break;
#endif
#ifdef PIPEWIRE
case INPUT_PIPEWIRE:
audio.format = p.samplebits;
audio.rate = p.samplerate;
thr_id = pthread_create(&p_thread, NULL, input_pipewire, (void *)&audio);
break;
#endif
#endif
#ifdef _WIN32
case INPUT_WINSCAP:
thr_id = pthread_create(&p_thread, NULL, input_winscap, (void *)&audio);
break;
#endif
default:
exit(EXIT_FAILURE); // Can't happen.
}
timeout_counter = 0;
while (true) {
#ifdef _WIN32
Sleep(1);
#else
nanosleep(&timeout_timer, NULL);
#endif
pthread_mutex_lock(&audio.lock);
if ((audio.threadparams == 0) && (audio.format != -1) && (audio.rate != 0))
break;
pthread_mutex_unlock(&audio.lock);
timeout_counter++;
if (timeout_counter > 5000) {
cleanup();
fprintf(stderr, "could not get rate and/or format, problems with audio thread? "
"quitting...\n");
exit(EXIT_FAILURE);
}
}
pthread_mutex_unlock(&audio.lock);
debug("got format: %d and rate %d\n", audio.format, audio.rate);
int audio_channels = audio.channels;
if (p.upper_cut_off > audio.rate / 2) {
cleanup();
fprintf(stderr,
"higher cutoff frequency can't be higher than sample rate / 2\nhigher "
"cutoff frequency is set to: %d, got sample rate: %d\n",
p.upper_cut_off, audio.rate);
exit(EXIT_FAILURE);
}
int *bars;
int *previous_frame;
float *bars_left, *bars_right;
double *cava_out;
float *bars_raw;
float *previous_bars_raw;
int height, lines, width, remainder, fp;
int *dimension_bar, *dimension_value;
#ifdef _WIN32
HANDLE hFile = NULL;
#endif
if (p.orientation == ORIENT_LEFT || p.orientation == ORIENT_RIGHT) {
dimension_bar = &height;
dimension_value = &width;
} else {
dimension_bar = &width;
dimension_value = &height;
}
#ifdef SDL
// output: start sdl mode
if (output_mode == OUTPUT_SDL) {
init_sdl_window(p.sdl_width, p.sdl_height, p.sdl_x, p.sdl_y, p.sdl_full_screen);
height = p.sdl_height;
width = p.sdl_width;
}
#endif
#ifdef SDL_GLSL
if (output_mode == OUTPUT_SDL_GLSL) {
init_sdl_glsl_window(p.sdl_width, p.sdl_height, p.sdl_x, p.sdl_y, p.sdl_full_screen,
p.vertex_shader, p.fragment_shader);
height = p.sdl_height;
width = p.sdl_width;
}
#endif
bool reloadConf = false;
while (!reloadConf) { // jumping back to this loop means that you resized the screen
// frequencies on x axis require a bar width of four or more
if (p.xaxis == FREQUENCY && p.bar_width < 4)
p.bar_width = 4;
switch (output_mode) {
#ifdef NCURSES
// output: start ncurses mode
case OUTPUT_NCURSES:
init_terminal_ncurses(p.color, p.bcolor, p.col, p.bgcol, p.gradient,
p.gradient_count, p.gradient_colors, &width, &lines);
if (p.xaxis != NONE)
lines--;
height = lines;
*dimension_value *=
8; // we have 8 times as much height due to using 1/8 block characters
break;
#endif
#ifdef SDL
// output: get sdl window size
case OUTPUT_SDL:
init_sdl_surface(&width, &height, p.color, p.bcolor, p.gradient, p.gradient_count,
p.gradient_colors);
break;
#endif
#ifdef SDL_GLSL
// output: get sdl window size
case OUTPUT_SDL_GLSL:
init_sdl_glsl_surface(&width, &height, p.color, p.bcolor, p.bar_width,
p.bar_spacing, p.gradient, p.gradient_count,
p.gradient_colors);
break;
#endif
case OUTPUT_NONCURSES:
get_terminal_dim_noncurses(&width, &lines);
if (p.xaxis != NONE)
lines--;
height = lines * 8;
break;
case OUTPUT_RAW:
case OUTPUT_NORITAKE:
if (strcmp(p.raw_target, "/dev/stdout") != 0) {
#ifndef _WIN32
int fptest;
// checking if file exists
if (access(p.raw_target, F_OK) != -1) {
// file exists, testopening in case it's a fifo
fptest = open(p.raw_target, O_RDONLY | O_NONBLOCK, 0644);
if (fptest == -1) {
fprintf(stderr, "could not open file %s for writing\n", p.raw_target);
exit(1);
}
} else {
printf("creating fifo %s\n", p.raw_target);
if (mkfifo(p.raw_target, 0664) == -1) {
fprintf(stderr, "could not create fifo %s\n", p.raw_target);
exit(1);
}
// fifo needs to be open for reading in order to write to it
fptest = open(p.raw_target, O_RDONLY | O_NONBLOCK, 0644);
}
fp = open(p.raw_target, O_WRONLY | O_NONBLOCK | O_CREAT, 0644);
#else
int pipeLength = strlen("\\\\.\\pipe\\") + strlen(p.raw_target) + 1;
char *pipePath = malloc(pipeLength);
pipePath[pipeLength - 1] = '\0';
strcat(pipePath, "\\\\.\\pipe\\");
strcat(pipePath, p.raw_target);
DWORD pipeMode = strcmp(p.data_format, "ascii")
? PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE
: PIPE_TYPE_BYTE | PIPE_READMODE_BYTE;
hFile = CreateNamedPipeA(pipePath, PIPE_ACCESS_OUTBOUND | FILE_FLAG_OVERLAPPED,
pipeMode | PIPE_NOWAIT, PIPE_UNLIMITED_INSTANCES, 0, 0,
NMPWAIT_USE_DEFAULT_WAIT, NULL);
free(pipePath);
#endif
} else {
#ifndef _WIN32
fp = fileno(stdout);
#else
hFile = GetStdHandle(STD_OUTPUT_HANDLE);
#endif
}
#ifndef _WIN32
if (fp == -1) {
#else
if (hFile == INVALID_HANDLE_VALUE) {
#endif
fprintf(stderr, "could not open file %s for writing\n", p.raw_target);
exit(1);
}
#ifndef NDEBUG
debug("open file %s for writing raw output\n", p.raw_target);
#endif
// width must be hardcoded for raw output.
width = 512;
p.bar_width = 1; // not used
p.bar_spacing = 1;
if (strcmp(p.data_format, "ascii") != 0) {
// "binary" or "noritake"
height = pow(2, p.bit_format) - 1;
} else {
height = p.ascii_range;
}
break;
default:
exit(EXIT_FAILURE); // Can't happen.
}
// force stereo if only one channel is available
if (p.stereo && audio_channels == 1)
p.stereo = 0;
// handle for user setting too many bars
if (p.fixedbars) {
p.autobars = 0;
if (p.fixedbars * p.bar_width + p.fixedbars * p.bar_spacing - p.bar_spacing > width)
p.autobars = 1;
}
// getting numbers of bars
int number_of_bars = p.fixedbars;
if (p.autobars == 1)
number_of_bars = (*dimension_bar + p.bar_spacing) / (p.bar_width + p.bar_spacing);
if (number_of_bars <= 1) {
number_of_bars = 1; // must have at least 1 bars
if (p.stereo) {
number_of_bars = 2; // stereo have at least 2 bars
}
}
if (number_of_bars > 512)
number_of_bars = 512; // cant have more than 512 bars on 44100 rate
int output_channels = 1;
if (p.stereo) { // stereo must have even numbers of bars
output_channels = 2;
if (number_of_bars % 2 != 0)
number_of_bars--;
}
int raw_number_of_bars = (number_of_bars / output_channels) * audio_channels;
if (p.waveform) {
raw_number_of_bars = number_of_bars;
}
// checks if there is stil extra room, will use this to center
remainder = (*dimension_bar - number_of_bars * p.bar_width -
number_of_bars * p.bar_spacing + p.bar_spacing) /
2;
if (remainder < 0)
remainder = 0;
if (output_mode == OUTPUT_NONCURSES) {
init_terminal_noncurses(inAtty, p.color, p.bcolor, p.col, p.bgcol, p.gradient,
p.gradient_count, p.gradient_colors, p.horizontal_gradient,
p.horizontal_gradient_count, p.horizontal_gradient_colors,
number_of_bars, width, lines, p.bar_width, p.orientation,
p.blendDirection);
}
#ifndef NDEBUG
debug("height: %d width: %d dimension_bar: %d dimension_value: %d bars:%d bar width: "
"%d remainder: %d\n",
height, width, *dimension_bar, *dimension_value, number_of_bars, p.bar_width,
remainder);
#endif
double userEQ_keys_to_bars_ratio;
if (p.userEQ_enabled && (number_of_bars / output_channels > 0)) {
userEQ_keys_to_bars_ratio = (double)(((double)p.userEQ_keys) /
((double)(number_of_bars / output_channels)));
}
struct cava_plan *plan =
cava_init(number_of_bars / output_channels, audio.rate, audio.channels, p.autosens,
p.noise_reduction, p.lower_cut_off, p.upper_cut_off);
if (plan->status == -1) {
cleanup();
fprintf(stderr, "Error initializing cava . %s", plan->error_message);
exit(EXIT_FAILURE);
}
bars_left = (float *)malloc(number_of_bars / output_channels * sizeof(float));
bars_right = (float *)malloc(number_of_bars / output_channels * sizeof(float));
memset(bars_left, 0, sizeof(float) * number_of_bars / output_channels);
memset(bars_right, 0, sizeof(float) * number_of_bars / output_channels);
bars = (int *)malloc(number_of_bars * sizeof(int));
bars_raw = (float *)malloc(number_of_bars * sizeof(float));
previous_bars_raw = (float *)malloc(number_of_bars * sizeof(float));
previous_frame = (int *)malloc(number_of_bars * sizeof(int));
cava_out = (double *)malloc(number_of_bars * audio.channels / output_channels *
sizeof(double));
memset(bars, 0, sizeof(int) * number_of_bars);
memset(bars_raw, 0, sizeof(float) * number_of_bars);
memset(previous_bars_raw, 0, sizeof(float) * number_of_bars);
memset(previous_frame, 0, sizeof(int) * number_of_bars);
memset(cava_out, 0, sizeof(double) * number_of_bars * audio.channels / output_channels);
int x_axis_info = 0;
// process: calculate x axis values
if (p.xaxis != NONE) {
x_axis_info = 1;
double cut_off_frequency;
if (output_mode == OUTPUT_NONCURSES) {
printf("\r\033[%dB", lines + 1);
if (remainder)
printf("\033[%dC", remainder);
}
for (int n = 0; n < number_of_bars; n++) {
if (p.stereo) {
if (n < number_of_bars / 2)
cut_off_frequency = plan->cut_off_frequency[number_of_bars / 2 - 1 - n];
else
cut_off_frequency = plan->cut_off_frequency[n - number_of_bars / 2];
} else {
cut_off_frequency = plan->cut_off_frequency[n];
}
float freq_kilohz = cut_off_frequency / 1000;
int freq_floor = cut_off_frequency;
if (output_mode == OUTPUT_NCURSES) {
#ifdef NCURSES
if (cut_off_frequency < 1000)
mvprintw(lines, n * (p.bar_width + p.bar_spacing) + remainder, "%-4d",
freq_floor);
else if (cut_off_frequency > 1000 && cut_off_frequency < 10000)
mvprintw(lines, n * (p.bar_width + p.bar_spacing) + remainder, "%.2f",
freq_kilohz);
else
mvprintw(lines, n * (p.bar_width + p.bar_spacing) + remainder, "%.1f",
freq_kilohz);
#endif
} else if (output_mode == OUTPUT_NONCURSES) {
if (cut_off_frequency < 1000)
printf("%-4d", freq_floor);
else if (cut_off_frequency > 1000 && cut_off_frequency < 10000)
printf("%.2f", freq_kilohz);
else
printf("%.1f", freq_kilohz);
if (n < number_of_bars - 1)
printf("\033[%dC", p.bar_width + p.bar_spacing - 4);
}
}
printf("\r\033[%dA", lines + 1);
}
bool resizeTerminal = false;
int frame_time_msec = (1 / (float)p.framerate) * 1000;
struct timespec framerate_timer = {.tv_sec = 0, .tv_nsec = 0};
if (p.framerate <= 1) {
framerate_timer.tv_sec = frame_time_msec / 1000;
} else {
framerate_timer.tv_sec = 0;
framerate_timer.tv_nsec = frame_time_msec * 1e6;
}
#ifdef _WIN32
LARGE_INTEGER frequency; // ticks per second
LARGE_INTEGER t1, t2; // ticks
double elapsedTime;
QueryPerformanceFrequency(&frequency);
#endif // _WIN32
int sleep_counter = 0;
bool silence = false;
char ch = '\0';
#ifndef NDEBUG
int maxvalue = 0;
int minvalue = 0;
#endif
struct timespec sleep_mode_timer = {.tv_sec = 1, .tv_nsec = 0};
int total_frames = 0;
while (!resizeTerminal) {
// general: keyboard controls
#ifdef NCURSES
if (output_mode == OUTPUT_NCURSES)
ch = getch();
#endif
#ifndef _WIN32
if (output_mode == OUTPUT_NONCURSES)
read(0, &ch, sizeof(ch));
#endif
switch (ch) {
case 65: // key up
p.sens = p.sens * 1.05;
break;
case 66: // key down
p.sens = p.sens * 0.95;
break;
case 68: // key right
p.bar_width++;
resizeTerminal = true;
break;
case 67: // key left
if (p.bar_width > 1)
p.bar_width--;
resizeTerminal = true;
break;
case 'r': // reload config
should_reload = 1;
break;
case 'c': // reload colors
reload_colors = 1;
break;
case 'f': // change forground color
if (p.col < 7)
p.col++;
else
p.col = 0;
resizeTerminal = true;
break;
case 'b': // change backround color
if (p.bgcol < 7)
p.bgcol++;
else
p.bgcol = 0;
resizeTerminal = true;
break;
case 'q':
should_reload = 1;
should_quit = 1;
}
ch = 0;
if (should_reload) {
reloadConf = true;
resizeTerminal = true;
should_reload = 0;
}
if (reload_colors) {
struct error_s error;
error.length = 0;
if (!load_config(configPath, (void *)&p, 1, &error)) {
cleanup();
fprintf(stderr, "Error loading config. %s", error.message);
exit(EXIT_FAILURE);
}
resizeTerminal = true;
reload_colors = 0;
}
#ifndef NDEBUG
// clear();
#ifndef _WIN32
refresh();
#endif
#endif
// process: check if input is present
silence = true;
for (int n = 0; n < audio.input_buffer_size * 4; n++) {
if (audio.cava_in[n]) {
silence = false;
break;
}
}
#ifndef _WIN32
if (output_mode != OUTPUT_SDL) {
if (p.sleep_timer) {
if (silence && sleep_counter <= p.framerate * p.sleep_timer)
sleep_counter++;
else if (!silence)
sleep_counter = 0;
if (sleep_counter > p.framerate * p.sleep_timer) {
#ifndef NDEBUG
printw("no sound detected for 30 sec, going to sleep mode\n");
#endif
nanosleep(&sleep_mode_timer, NULL);
continue;
}
}
}
#endif // !_WIN32
// process: execute cava
pthread_mutex_lock(&audio.lock);
if (p.waveform) {
for (int n = 0; n < audio.samples_counter; n++) {