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2023.08.31

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sshlien
2023-08-31 08:44:52 -04:00
parent 3f405a1aba
commit 48c443fabd
4 changed files with 44 additions and 11 deletions
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47
midistats.c
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@@ -18,7 +18,7 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#define VERSION "0.71 August 22 2023 midistats"
#define VERSION "0.72 August 31 2023 midistats"
#include <limits.h>
/* Microsoft Visual C++ Version 6.0 or higher */
@@ -52,7 +52,8 @@ void stats_finish();
float histogram_entropy (int *histogram, int size);
void stats_noteoff(int chan,int pitch,int vol);
void stats_eot ();
#define max(a,b) (( a > b ? a : b))
#define min(a,b) (( a < b ? a : b))
/* Global variables and structures */
@@ -114,8 +115,9 @@ int trackcount = 0;
int notechan[2048],notechanvol[2048]; /*for linking on and off midi
channel commands */
int last_tick[17]; /* for getting last pulse number in MIDI file */
int lastTick[2048]; /* for getting last pulse number for chan (0-15) and pitch (0-127) in MIDI file */
int last_on_tick[17]; /* for detecting chords [SS] 2019-08-02 */
int channel_active[17]; /* for dealing with chords [SS] 2023-08-30 */
int histogram[256];
unsigned char drumpat[8000];
@@ -131,7 +133,11 @@ struct trkstat {
int notecount[17];
int chordcount[17];
int notemeanpitch[17];
int notepitchmin[17];
int notepitchmax[17];
int notelength[17];
int notelengthmin[17];
int notelengthmax[17];
int pitchbend[17];
int pressure[17];
int cntlparam[17];
@@ -589,7 +595,10 @@ for (i=1;i<17;i++) {
else
printf("-1 0 ");
printf("%d %d ",trkdata.cntlparam[i],trkdata.pressure[i]); /* [SS] 2022-03-04 */
printf("%d %d",trkdata.quietTime[i],trkdata.rhythmpatterns[i]);
printf("%d %d ",trkdata.quietTime[i],trkdata.rhythmpatterns[i]);
if (i != 10) printf("%d %d %d %d",trkdata.notepitchmin[i], trkdata.notepitchmax[i] ,trkdata.notelengthmin[i], trkdata.notelengthmax[i]);
else
printf("-1 0");
trkdata.quietTime[i] = 0;
printf("\n");
@@ -607,13 +616,19 @@ void stats_trackstart()
for (i=0;i<17;i++) {
trkdata.notecount[i] = 0;
trkdata.notemeanpitch[i] = 0;
trkdata.notepitchmin[i] = 128;
trkdata.notepitchmax[i] = 0;
trkdata.notelength[i] = 0;
trkdata.notelengthmin[i] = 10000;
trkdata.notelengthmax[i] = 0;
trkdata.chordcount[i] = 0;
trkdata.cntlparam[i] = 0;
last_tick[i] = -1;
last_on_tick[i] = -1;
channel_active[i] = 0;
}
printf("trk %d \n",tracknum);
for (i=0;i<2048;i++) lastTick[i] = -1;
}
void stats_trackend()
@@ -641,6 +656,8 @@ int chan, pitch, vol;
return;
}
trkdata.notemeanpitch[chan+1] += pitch;
trkdata.notepitchmax[chan+1] = max(trkdata.notepitchmax[chan+1],pitch);
trkdata.notepitchmin[chan+1] = min(trkdata.notepitchmin[chan+1],pitch);
if (trkdata.lastNoteOff[chan+1] >= 0) {
delta = Mf_currtime - trkdata.lastNoteOff[chan+1];
trkdata.lastNoteOff[chan+1] = -1; /* in case of chord */
@@ -651,7 +668,7 @@ int chan, pitch, vol;
if (abs(Mf_currtime - last_on_tick[chan+1]) < chordthreshold) trkdata.chordcount[chan+1]++;
else trkdata.notecount[chan+1]++; /* [SS] 2019-08-02 */
last_tick[chan+1] = Mf_currtime;
lastTick[chan*128 + pitch] = Mf_currtime;
last_on_tick[chan+1] = Mf_currtime; /* [SS] 2019-08-02 */
/* last_on_tick not updated by stats_noteoff */
@@ -679,6 +696,8 @@ int chan, pitch, vol;
else drumhistogram[pitch]++;
}
else pitchhistogram[pitch % 12]++; /* [SS] 2017-11-01 */
channel_active[chan+1]++;
}
@@ -691,17 +710,27 @@ void stats_noteoff(int chan,int pitch,int vol)
int length;
int program;
/* ignore if there was no noteon */
if (last_tick[chan+1] == -1) return;
length = Mf_currtime - last_tick[chan+1];
if (lastTick[chan*128+pitch] == -1) return;
length = Mf_currtime - lastTick[chan*128+pitch];
trkdata.notelength[chan+1] += length;
trkdata.notelengthmax[chan+1] = max(trkdata.notelengthmax[chan+1],length);
trkdata.notelengthmin[chan+1] = min(trkdata.notelengthmin[chan+1],length);
if (length < 3) printf("chan = %d lasttick = %d currtime = %ld\n",chan,lastTick[chan*128+pitch],Mf_currtime);
trkdata.lastNoteOff[chan+1] = Mf_currtime; /* [SS] 2022.08.22 */
chnactivity[chan+1] += length;
if (chan == 9) return; /* drum channel */
pitchclass_activity[pitch % 12] += length;
program = trkdata.program[chan+1];
progactivity[program] += length;
channel_active[chan+1]--;
/* [SS] 2018-04-18 */
if(Mf_currtime > last_tick[chan+1]) last_tick[chan+1] = Mf_currtime;
if(Mf_currtime > lastTick[chan*128+pitch] && channel_active[chan+1] == 0)
lastTick[chan*128+pitch] = Mf_currtime; /* [SS] 2023.08.30 handle chords */
if (length > 4800) {
lastTick[chan*128+pitch] = Mf_currtime; /* handle stuck note [SS] 2023.08.30 */
channel_active[chan+1] = 0;
}
}