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2023.11.08

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sshlien
2023-11-08 10:57:05 -05:00
parent b24803bf86
commit d93cb473dc
5 changed files with 67 additions and 21 deletions
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42
midistats.c
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@@ -18,7 +18,7 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#define VERSION "0.78 October 30 2023 midistats"
#define VERSION "0.79 November 08 2023 midistats"
#include <limits.h>
/* Microsoft Visual C++ Version 6.0 or higher */
@@ -94,7 +94,7 @@ struct eventstruc {int onsetTime;
unsigned char channel;
unsigned char pitch;
unsigned char velocity;
;} midievents[40000];
;} midievents[50000];
int lastEvent = 0;
@@ -200,7 +200,7 @@ static int progmapper[] = {
16, 16, 16, 16, 16, 16, 16, 16
};
int pulseCounter[480];
int pulseCounter[1024];
int pulseDistribution[24];
struct barPattern {
@@ -474,9 +474,14 @@ int i;
/* [SS] 2023-10-30 */
void stats_interpret_pulseCounter () {
int i;
int i,j;
int maxcount,ncounts;
int maxloc;
float threshold,peak;
int decimate;
float tripletsCriterion;
int resolution = 12;
threshold = 10.0/(float) division;
maxcount = 0;
ncounts = 0;
for (i=0;i<division;i++) {
@@ -486,9 +491,19 @@ for (i=0;i<division;i++) {
maxcount = pulseCounter[i];
}
}
//printf("maxpulse = %f at %d\n",(float) maxcount/(float) ncounts, maxloc);
if ((float) maxcount/(float) ncounts < 0.05) printf("unquantized\n");
for (i = 0; i < resolution; i++) pulseDistribution[i] = 0;
decimate = division/resolution;
for (i = 0; i < division; i++) {
j = i/decimate;
pulseDistribution[j] += pulseCounter[i];
}
peak = (float) maxcount/ (float) ncounts;
/*printf("maxcount = %d ncounts = %d peak = %f threshold = %f\n",maxcount,ncounts,peak,threshold); */
if (peak < threshold) printf("unquantized\n");
tripletsCriterion = (float) pulseDistribution[8]/ (float) ncounts;
/*printf("tripletsCriterion = %f\n",tripletsCriterion);*/
if (tripletsCriterion > 0.15) printf("triplets\n");
}
void stats_finish()
@@ -704,7 +719,7 @@ int chan, pitch, vol;
}
pulsePosition = Mf_currtime % division;
pulseCounter[pulsePosition]++;
if (pulsePosition >= 480) {printf("pulsePosition = %d too large\n",pulsePosition);
if (pulsePosition >= 1023) {printf("pulsePosition = %d too large\n",pulsePosition);
exit(1);
}
trkdata.notemeanpitch[chan+1] += pitch;
@@ -909,7 +924,7 @@ midievents[lastEvent].channel = chan;
midievents[lastEvent].pitch = pitch;
midievents[lastEvent].velocity = vol;
lastEvent++;
if (lastEvent > 39999) {printf("ran out of space in midievents structure\n");
if (lastEvent > 49999) {printf("ran out of space in midievents structure\n");
exit(1);
}
}
@@ -934,6 +949,7 @@ int int_compare_events(const void *a, const void *b) {
void load_header (int format, int ntrks, int ldivision)
{
division = ldivision;
lasttrack = ntrks;
}
@@ -962,7 +978,7 @@ void initfunc_for_stats()
Mf_seqspecific = no_op3;
Mf_text = stats_metatext;
Mf_arbitrary = no_op2;
for (i = 0; i< 480; i++) pulseCounter[i] = 0;
for (i = 0; i< 1023; i++) pulseCounter[i] = 0;
}
@@ -1014,16 +1030,16 @@ int pulsePosition;
int decimate;
float fraction;
int resolution = 12;
for (i = 0; i< 480; i++) pulseCounter[i] = 0;
for (i = 0; i< 1023; i++) pulseCounter[i] = 0;
for (i = 0; i < lastEvent; i++) {
pulsePosition = midievents[i].onsetTime % division;
pulseCounter[pulsePosition]++;
if (pulsePosition >= 480) {printf("pulsePosition = %d too large\n",pulsePosition);
if (pulsePosition >= 1023) {printf("pulsePosition = %d too large\n",pulsePosition);
exit(1);
}
}
for (i = 0; i < resolution; i++) pulseDistribution[i] = 0;
/*for (i = 0; i < 480; i++) printf(" %d",pulseCounter[i]);
/*for (i = 0; i < 1023; i++) printf(" %d",pulseCounter[i]);
printf("\n");
*/
decimate = division/resolution;
@@ -1205,7 +1221,7 @@ printf("\n");
void corestatsOutput() {
printf("%d\t%d\t%d\n", division,lastEvent,lastBeat);
printf("%d\t%d\t%d\t%d\n",lasttrack, division,lastEvent,lastBeat);
}