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resize terminal windows fix + smoothening

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cava now reinits on terminal window resizing, fixing previous glitchy behaviour

added an "integral filter" (not sure what to call it look at linke 521-523), uses parts of past signals to get a smoothening effect
master
karl 11 years ago
parent afd897a6f5
commit f0c1023185
1 changed files with 81 additions and 43 deletions
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  1. 124
      cava.c

124
cava.c
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@ -25,7 +25,7 @@ int rate = -1;
void sigint_handler(int sig_no)
{
printf("\033[0m\n");
system("setfont /usr/share/consolefonts/Lat2-Fixed16.psf.gz ");
system("setfont /usr/share/consolefonts/Lat2-Fixed16.psf.gz >/dev/null 2>&1");
system("setterm -cursor on");
system("setterm -blank 10");
system("clear");
@ -205,7 +205,8 @@ int main(int argc, char **argv)
float fc[200];//={150.223,297.972,689.062,1470,3150,5512.5,11025,18000};
float fr[200];//={0.00340905,0.0067567,0.015625,0.0333,0.07142857,0.125,0.25,0.4};
int lcf[200], hcf[200];
float f[200];
float f[200];
float fmem[200];
int flast[200];
float peak[201];
int y[M / 2 + 1];
@ -239,6 +240,7 @@ int main(int argc, char **argv)
flast[i] = 0;
fall[i] = 0;
fpeak[i] = 0;
fmem[o] = 0;
}
for (i = 0; i < M; i++)shared[M] = 0;
@ -322,11 +324,48 @@ int main(int argc, char **argv)
sigaction(SIGINT, &action, &old_action);
n = 0;
if(im == 1) {
//**watintg for audio to be ready**//
thr_id = pthread_create(&p_thread, NULL, music,
(void*)device); //starting alsamusic listner
while (format == -1 || rate == -1) {
usleep(1000);
n++;
if(n > 2000) {
if(debug == 1)
printf("could not get rate and or format, problems with audoi thread? quiting...\n");
exit(1);
}
}
if(debug == 1)printf("got format: %d and rate %d\n", format, rate);
}
if(im == 2) {
thr_id = pthread_create(&p_thread, NULL, fifomusic,
(void*)path); //starting fifomusic listner
rate = 44100;
format = 16;
}
p = fftw_plan_dft_r2c_1d(M, in, *out, FFTW_MEASURE); //planning to rock
//**getting h*w of term**//
ioctl(STDOUT_FILENO, TIOCGWINSZ, &w);
while (1) {//jumbing back to this loop means that you resized the screen
//getting orignial numbers of bands incase of resize
if (autoband == 0) {
bands = atoi(optarg);
if (bands > 200)bands = 200;
}
else bands = 25;
if(bands > (int)w.ws_col / 2 - 1)bands = (int)w.ws_col / 2 -
1; //handle for user setting to many bars
height = (int)w.ws_row - 1;
height = (int)w.ws_row -1;
width = (int)w.ws_col - bands - 1;
int matrix[width][height];
for(i = 0; i < width; i++) {
@ -342,39 +381,15 @@ int main(int argc, char **argv)
//if no bands are selected it tries to padd the default 20 if there is extra room
if(autoband == 1) bands = bands + (((w.ws_col) - (bw * bands + bands - 1)) /
(bw + 1));
width = (int)w.ws_col - bands - 1;
//checks if there is stil extra room, will use this to center
rest = (((w.ws_col) - (bw * bands + bands - 1)));
if(rest < 0)rest = 0;
printf("hoyde: %d bredde: %d bands:%d bandbredde: %d rest: %d\n", (int)w.ws_row,
if(debug == 1) printf("hoyde: %d bredde: %d bands:%d bandbredde: %d rest: %d\n", (int)w.ws_row,
(int)w.ws_col, bands, bw, rest);
n = 0;
if(im == 1) {
//**watintg for audio to be ready**//
thr_id = pthread_create(&p_thread, NULL, music,
(void*)device); //starting alsamusic listner
while (format == -1 || rate == -1) {
usleep(1000);
n++;
if(n > 2000) {
if(debug == 1)
printf("could not get rate and or format, problems with audoi thread? quiting...\n");
exit(1);
}
}
if(debug == 1)printf("got format: %d and rate %d\n", format, rate);
debug = 0;
}
if(im == 2) {
thr_id = pthread_create(&p_thread, NULL, fifomusic,
(void*)path); //starting fifomusic listner
rate = 44100;
format = 16;
}
//**calculating cutof frequencies**/
for(n = 0; n < bands + 1; n++) {
@ -399,18 +414,17 @@ int main(int argc, char **argv)
}
//exit(1);
//constants to wigh signal to frequency
//constants to weigh signal to frequency
for(n = 0; n < bands;
n++)k[n] = ((float)height * pow(log(lcf[n] + 1),
2.4+((float)bands/75))) / (1024 * (M /
12)); // the log(lcf[n]) is because higher frequencys are usally lower ine effect in music
10)); // the log(lcf[n]) is because higher frequencys are usally lower ine effect in music
p = fftw_plan_dft_r2c_1d(M, in, *out, FFTW_MEASURE); //planning to rock
//**preparing screen**//
if(debug == 0) {
virt = system("setfont cava.psf");
virt = system("setfont cava.psf >/dev/null 2>&1");
system("setterm -cursor off");
system("setterm -blank 0");
//resetting console
@ -439,9 +453,24 @@ int main(int argc, char **argv)
//debug=1;
//**start main loop**//
while (1) {
//**checkint if terminal windows has been resized**//
if(virt!=0){
ioctl(STDOUT_FILENO, TIOCGWINSZ, &w);
if( ((int)w.ws_row - 1) != height || ((int)w.ws_col - bands - 1) != width){
break;
}
}
if(debug == 1) {
system("clear");
}
//**populating input buffer & checking if there is sound**//
lpeak = 0;
@ -487,6 +516,14 @@ int main(int argc, char **argv)
fall[o] = 0;
}
//**smoothening**//
fmem[o]+=f[o];
fmem[o]=fmem[o]*0.55;
f[o]=fmem[o];
flast[o] = f[o]; //memmory for falloff func
if(f[o] < 0.125)f[o] = 0.125;
@ -506,16 +543,16 @@ int main(int argc, char **argv)
continue;
}
/* MONSTERCAT STYLE EASING BY CW !aFrP90ZN26 */
int z, m_y;
for (z = 0; z < bands; z++) {
for (m_y = z-1; m_y >= 0; m_y--) {
f[m_y] = max(f[z]/pow(2, z-m_y), f[m_y]);
}
for (m_y = z+1; m_y < bands; m_y++) {
f[m_y] = max(f[z]/pow(2, m_y-z), f[m_y]);
}
}
/* MONSTERCAT STYLE EASING BY CW !aFrP90ZN26 */
int z, m_y;
for (z = 0; z < bands; z++) {
for (m_y = z-1; m_y >= 0; m_y--) {
f[m_y] = max(f[z]/pow(2, z-m_y), f[m_y]);
}
for (m_y = z+1; m_y < bands; m_y++) {
f[m_y] = max(f[z]/pow(2, m_y-z), f[m_y]);
}
}
//**DRAWING**// -- put in function file maybe?
if (debug == 0) {
@ -601,5 +638,6 @@ int main(int argc, char **argv)
}
}
}
return 0;
}

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