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cava
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switched to using pointers to get terminal dim

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master
karlstav 11 years ago
parent 85add3e3fb
commit 5ec1377036
1 changed files with 96 additions and 129 deletions
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  1. 225
      cava.c

225
cava.c
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@ -20,8 +20,9 @@
#include <time.h>
#include <getopt.h>
#include <pthread.h>
#include <curses.h>
#include <wchar.h>
#include "output/terminal_ncurses.h"
#include "output/terminal_ncurses.c"
#ifdef __GNUC__
@ -45,11 +46,7 @@ int rc;
// general: cleanup
void cleanup()
{
echo();
system("setfont /usr/share/consolefonts/Lat2-Fixed16.psf.gz >/dev/null 2>&1");
system("setterm -blank 10");
endwin();
system("clear");
cleanup_terminal_ncurses();
}
// general: handle signals
@ -62,6 +59,66 @@ void sig_handler(int sig_no)
signal(sig_no, SIG_DFL);
raise(sig_no);
}
//input: FIFO
void* input_fifo(void* data)
{
int fd;
int n = 0;
signed char buf[1024];
int tempr, templ, lo;
int q, i;
int t = 0;
int size = 1024;
char *path = ((char*)data);
int bytes = 0;
int flags;
struct timespec req = { .tv_sec = 0, .tv_nsec = 10000000 };
fd = open(path, O_RDONLY);
flags = fcntl(fd, F_GETFL, 0);
fcntl(fd, F_SETFL, flags | O_NONBLOCK);
while (1) {
bytes = read(fd, buf, sizeof(buf));
if (bytes == -1) { //if no bytes read sleep 10ms and zero shared buffer
nanosleep (&req, NULL);
t++;
if (t > 10) {
for (i = 0; i < M; i++)shared[i] = 0;
t = 0;
}
} else { //if bytes read go ahead
t = 0;
for (q = 0; q < (size / 4); q++) {
tempr = ( buf[ 4 * q - 1] << 2);
lo = ( buf[4 * q ] >> 6);
if (lo < 0)lo = abs(lo) + 1;
if (tempr >= 0)tempr = tempr + lo;
else tempr = tempr - lo;
templ = ( buf[ 4 * q - 3] << 2);
lo = ( buf[ 4 * q - 2] >> 6);
if (lo < 0)lo = abs(lo) + 1;
if (templ >= 0)templ = templ + lo;
else templ = templ - lo;
shared[n] = (tempr + templ) / 2;
n++;
if (n == M - 1)n = 0;
}
}
}
close(fd);
}
// input: ALSA
void* input_alsa(void* data)
@ -178,66 +235,8 @@ void* input_alsa(void* data)
}
}
//input: FIFO
void* input_fifo(void* data)
{
int fd;
int n = 0;
signed char buf[1024];
int tempr, templ, lo;
int q, i;
int t = 0;
int size = 1024;
char *path = ((char*)data);
int bytes = 0;
int flags;
struct timespec req = { .tv_sec = 0, .tv_nsec = 10000000 };
fd = open(path, O_RDONLY);
flags = fcntl(fd, F_GETFL, 0);
fcntl(fd, F_SETFL, flags | O_NONBLOCK);
while (1) {
bytes = read(fd, buf, sizeof(buf));
if (bytes == -1) { //if no bytes read sleep 10ms and zero shared buffer
nanosleep (&req, NULL);
t++;
if (t > 10) {
for (i = 0; i < M; i++)shared[i] = 0;
t = 0;
}
} else { //if bytes read go ahead
t = 0;
for (q = 0; q < (size / 4); q++) {
tempr = ( buf[ 4 * q - 1] << 2);
lo = ( buf[4 * q ] >> 6);
if (lo < 0)lo = abs(lo) + 1;
if (tempr >= 0)tempr = tempr + lo;
else tempr = tempr - lo;
templ = ( buf[ 4 * q - 3] << 2);
lo = ( buf[ 4 * q - 2] >> 6);
if (lo < 0)lo = abs(lo) + 1;
if (templ >= 0)templ = templ + lo;
else templ = templ - lo;
shared[n] = (tempr + templ) / 2;
n++;
if (n == M - 1)n = 0;
}
}
}
close(fd);
}
// general: entry point
int main(int argc, char **argv)
@ -262,7 +261,7 @@ int main(int argc, char **argv)
long int lpeak, hpeak;
int bands = 25;
int sleep = 0;
int i, n, o, bw, height, h, w, c, rest, virt, fixedbands, q;
int i, n, o, bw, height, h, w, c, rest, virt, fixedbands;
int autoband = 1;
float temp;
double in[2 * (M / 2 + 1)];
@ -284,7 +283,6 @@ int main(int argc, char **argv)
1.75, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2};
float sm = 1.25; //min val from smooth[]
struct timespec req = { .tv_sec = 0, .tv_nsec = 0 };
const wchar_t* bars[] = {L"\u2581", L"\u2582", L"\u2583", L"\u2584", L"\u2585", L"\u2586", L"\u2587", L"\u2588"};
char *usage = "\n\
Usage : " PACKAGE " [options]\n\
Visualize audio input in terminal. \n\
@ -416,6 +414,8 @@ Options:\n\
n = 0;
// input: wait for the input to be ready
if (im == 1) {
thr_id = pthread_create(&p_thread, NULL, input_alsa,
@ -451,20 +451,19 @@ Options:\n\
//output: start ncurses mode
if (framerate <= 1) {
req.tv_sec = 1 / (float)framerate;
} else {
req.tv_sec = 0;
req.tv_nsec = (1 / (float)framerate) * 1000000000; //sleeping for set us
}
virt = system("setfont cava.psf >/dev/null 2>&1");
if (virt == 0) system("setterm -blank 0");
initscr();
curs_set(0);
timeout(0);
noecho();
start_color();
use_default_colors();
init_pair(1, col, bgcol);
if(bgcol != -1)
bkgd(COLOR_PAIR(1));
attron(COLOR_PAIR(1));
attron(A_BOLD);
//output: start ncurses mode
init_terminal_ncurses(col, bgcol);
@ -486,17 +485,17 @@ Options:\n\
// output: get terminal's geometry
clear();
getmaxyx(stdscr,h,w);
if (bands > COLS / 2 - 1)bands = COLS / 2 -
get_terminal_dim_ncurses(&w, &h);
if (bands > w / 2 - 1)bands = w / 2 -
1; //handle for user setting to many bars
if (bands < 1) bands = 1; // must have at least 1 bar;
height = LINES - 1;
height = h - 1;
bw = (COLS - bands - 1) / bands;
bw = (w - bands - 1) / bands;
if (bw < 1) bw = 1; //bars must have width
@ -504,18 +503,18 @@ Options:\n\
g = ((float)height / 400) * pow((60 / (float)framerate), 2.5);
//if no bands are selected it tries to padd the default 20 if there is extra room
if (autoband == 1) bands = bands + ((COLS - (bw * bands + bands - 1)) /
if (autoband == 1) bands = bands + ((w - (bw * bands + bands - 1)) /
(bw + 1));
//checks if there is stil extra room, will use this to center
rest = (COLS - bands * bw - bands + 1) / 2;
rest = (w - bands * bw - bands + 1) / 2;
if (rest < 0)rest = 0;
#ifdef DEBUG
printw("hoyde: %d bredde: %d bands:%d bandbredde: %d rest: %d\n",
COLS,
LINES, bands, bw, rest);
w,
h, bands, bw, rest);
#endif
// process: calculate cutoff frequencies
@ -544,7 +543,7 @@ Options:\n\
// process: weigh signal to frequencies
for (n = 0; n < bands;
n++)k[n] = pow(fc[n],0.62) * ((float)height/(M*2000)) * 8;
n++)k[n] = pow(fc[n],0.62) * ((float)height/(M*3500)) * 8;
@ -575,13 +574,6 @@ Options:\n\
// output: check if terminal has been resized
if (virt != 0) {
if ( LINES != h || COLS != w) {
break;
}
}
#ifdef DEBUG
system("clear");
#endif
@ -637,8 +629,9 @@ Options:\n\
// process [smoothing]
if (!scientificMode)
{
for (o = 0; o < bands; o++) {
// process [smoothing]: falloff
for (o = 0; o < bands; o++) {
temp = f[o];
if (temp < flast[o]) {
@ -666,11 +659,9 @@ Options:\n\
f[m_y] = max(f[z] / pow(2, m_y - z), f[m_y]);
}
}
// process [smoothing]: integral
for (o = 0; o < bands; o++) {
fmem[o] += f[o];
fmem[o] = fmem[o] * 0.55;
fmem[o] = fmem[o] * 0.55 + f[o];
f[o] = fmem[o];
if (f[o] < 1)f[o] = 1;
@ -686,37 +677,13 @@ Options:\n\
#ifndef DEBUG
switch (om) {
case 1:
for (i = 0; i < bands; i++) {
if(f[i] > flastd[i]){//higher then last one
if (virt == 0) for (n = flastd[i] / 8; n < f[i] / 8; n++) for (q = 0; q < bw; q++) mvprintw((height - n), (i * bw) + q + i + rest, "%d",8);
else for (n = flastd[i] / 8; n < f[i] / 8; n++) for (q = 0; q < bw; q++) mvaddwstr((height - n), (i * bw) + q + i + rest, bars[7]);
if (f[i] % 8 != 0) {
if (virt == 0) for (q = 0; q < bw; q++) mvprintw( (height - n), (i * bw) + q + i + rest, "%d",(f[i] % 8) );
else for (q = 0; q < bw; q++) mvaddwstr( (height - n), (i * bw) + q + i + rest, bars[(f[i] % 8) - 1]);
}
}else if(f[i] < flastd[i]){//lower then last one
for (n = f[i] / 8; n < flastd[i]/8 + 1; n++) for (q = 0; q < bw; q++) mvaddstr( (height - n), (i*bw) + q + i + rest, " ");
if (f[i] % 8 != 0) {
if (virt == 0) for (q = 0; q < bw; q++) mvprintw((height - f[i] / 8), (i * bw) + q + i + rest, "%d",(f[i] % 8) );
else for (q = 0; q < bw; q++) mvaddwstr((height - f[i] / 8), (i * bw) + q + i + rest, bars[(f[i] % 8) - 1]);
}
}
flastd[i] = f[i]; //memmory for falloff func
}
refresh();
rc = draw_terminal_ncurses(virt, h, w, bands, bw, rest, f, flastd);
break;
}
if (framerate <= 1) {
req.tv_sec = 1 / (float)framerate;
} else {
req.tv_sec = 0;
req.tv_nsec = (1 / (float)framerate) * 1000000000; //sleeping for set us
}
if (rc == -1) break; //terminal has been resized breaking to recalibrating values
nanosleep (&req, NULL);
#endif

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