fruchti/colorchord
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add targeted channel support

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This commit is contained in:
cnlohr 2015-01-07 00:55:35 -05:00
parent 7096d7ae8b
commit 346c724b1f
2 changed files with 27 additions and 10 deletions
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2
default.conf
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@ -32,6 +32,8 @@ rec = 1
channels = 2
samplerate = 44100
sound_source = PULSE
#-1 indicates left and right, 0 left, 1 right.
sample_channel = 1
sourcename = alsa_output.pci-0000_00_1b.0.analog-stereo.monitor
##################################

27
main.c
View file

@ -22,6 +22,7 @@ int set_screenx = 640; REGISTER_PARAM( set_screenx, PINT );
int set_screeny = 480; REGISTER_PARAM( set_screeny, PINT );
char sound_source[16]; REGISTER_PARAM( sound_source, PBUFFER );
int cpu_autolimit = 1; REGISTER_PARAM( cpu_autolimit, PINT );
int sample_channel = -1;REGISTER_PARAM( sample_channel, PINT );
struct NoteFinder * nf;
@ -31,7 +32,7 @@ struct NoteFinder * nf;
double VisTimeEnd, VisTimeStart;
int soundhead = 0;
float sound[MAX_CHANNELS][SOUNDCBSIZE];
float sound[SOUNDCBSIZE];
int show_debug = 0;
int show_debug_basic = 1;
@ -73,13 +74,27 @@ void SoundCB( float * out, float * in, int samplesr, int * samplesp, struct Soun
int j;
for( i = 0; i < samplesr; i++ )
{
if( sample_channel < 0 )
{
float fo = 0;
for( j = 0; j < process_channels; j++ )
{
float f = in[i*channelin+j];
if( f < -1 || f > 1 ) continue;
sound[j][soundhead] = in[i*channelin+j];
fo += f;
}
fo /= process_channels;
sound[soundhead] = fo;
soundhead = (soundhead+1)%SOUNDCBSIZE;
}
else
{
float f = in[i*channelin+sample_channel];
if( f < -1 || f > 1 ) continue;
sound[soundhead] = f;
soundhead = (soundhead+1)%SOUNDCBSIZE;
}
}
}
@ -179,7 +194,7 @@ int main(int argc, char ** argv)
CNFGColor( 0xFFFFFF );
CNFGGetDimensions( &screenx, &screeny );
RunNoteFinder( nf, sound[0], (soundhead-1+SOUNDCBSIZE)%SOUNDCBSIZE, SOUNDCBSIZE );
RunNoteFinder( nf, sound, (soundhead-1+SOUNDCBSIZE)%SOUNDCBSIZE, SOUNDCBSIZE );
//Done all ColorChord work.
VisTimeStart = OGGetAbsoluteTime();
@ -233,13 +248,13 @@ int main(int argc, char ** argv)
//Let's draw the o-scope.
int thissoundhead = soundhead;
thissoundhead = (thissoundhead-1+SOUNDCBSIZE)%SOUNDCBSIZE;
int lasty = sound[0][thissoundhead] * 128 + 128; thissoundhead = (thissoundhead-1+SOUNDCBSIZE)%SOUNDCBSIZE;
int thisy = sound[0][thissoundhead] * 128 + 128; thissoundhead = (thissoundhead-1+SOUNDCBSIZE)%SOUNDCBSIZE;
int lasty = sound[thissoundhead] * 128 + 128; thissoundhead = (thissoundhead-1+SOUNDCBSIZE)%SOUNDCBSIZE;
int thisy = sound[thissoundhead] * 128 + 128; thissoundhead = (thissoundhead-1+SOUNDCBSIZE)%SOUNDCBSIZE;
for( i = 0; i < screenx; i++ )
{
CNFGTackSegment( i, lasty, i+1, thisy );
lasty = thisy;
thisy = sound[0][thissoundhead] * 128 + 128; thissoundhead = (thissoundhead-1+SOUNDCBSIZE)%SOUNDCBSIZE;
thisy = sound[thissoundhead] * 128 + 128; thissoundhead = (thissoundhead-1+SOUNDCBSIZE)%SOUNDCBSIZE;
}
}