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Diffstat (limited to 'midifile/midifile.c')
-rw-r--r--midifile/midifile.c168
1 files changed, 143 insertions, 25 deletions
diff --git a/midifile/midifile.c b/midifile/midifile.c
index c0adebb..de87d1a 100644
--- a/midifile/midifile.c
+++ b/midifile/midifile.c
@@ -62,7 +62,7 @@ typedef struct t_midifile
size_t total_time; /* current time for this MIDI file in delta_time units */
t_atom midi_data[3]; /* one MIDI packet as a list */
t_outlet *midi_list_outlet;
- t_outlet *bang_outlet;
+ t_outlet *status_outlet;
t_outlet *total_time_outlet;
FILE *fP;
FILE *tmpFP;
@@ -109,6 +109,7 @@ static void *midifile_new(t_symbol *s, int argc, t_atom *argv);
static void midifile_verbosity(t_midifile *x, t_floatarg verbosity);
static void midifile_single_track(t_midifile *x, t_floatarg track);
static void midifile_dump(t_midifile *x, t_floatarg track);
+static t_symbol *midifile_key_name(int sf, int mi);
void midifile_setup(void);
void midifile_setup(void)
@@ -175,8 +176,8 @@ static void *midifile_new(t_symbol *s, int argc, t_atom *argv)
}
x->midi_list_outlet = outlet_new(&x->x_obj, &s_list);
x->total_time_outlet = outlet_new(&x->x_obj, &s_float); /* current total_time */
- x->bang_outlet = outlet_new(&x->x_obj, &s_bang); /* bang at end of file */
- post("midifile 2008 Martin Peach");
+ x->status_outlet = outlet_new(&x->x_obj, &s_anything);/* last outlet for everything else */
+ post("midifile 20110212 by Martin Peach");
return (void *)x;
}
@@ -266,7 +267,7 @@ static void midifile_flush(t_midifile *x)
if(x->state != mfWriting) return; /* only if we're writing */
- outlet_bang(x->bang_outlet); /* bang so tick count can be saved externally */
+ outlet_bang(x->status_outlet); /* bang so tick count can be saved externally */
midifile_write_end_of_track(x, end_time);
written = midifile_write_header(x);
/* now copy the MIDI data from tmpFP to fP */
@@ -413,7 +414,7 @@ static void midifile_bang(t_midifile *x)
{ /* set ended flag, only bang once */
if (x->verbosity > 1)
post ("ended = %d x->header_chunk.chunk_ntrks = %d", ended, x->header_chunk.chunk_ntrks);
- outlet_bang(x->bang_outlet);
+ outlet_bang(x->status_outlet);
++x->ended;
}
/* fall through into mfWriting */
@@ -560,7 +561,7 @@ static void midifile_float(t_midifile *x, t_float ticks)
{
if (x->verbosity)
post ("midifile: ended = %d x->header_chunk.chunk_ntrks = %d", ended, x->header_chunk.chunk_ntrks);
- outlet_bang(x->bang_outlet);
+ outlet_bang(x->status_outlet);
}
break;
case mfWriting: /* add ticks to current time */
@@ -590,6 +591,7 @@ static int midifile_read_header_chunk(t_midifile *x)
char buf[4];
size_t n;
int div, smpte, ticks;
+ t_atom output_atom;
if (x->fP == NULL)
{
@@ -649,6 +651,8 @@ static int midifile_read_header_chunk(t_midifile *x)
sP = "Unknown format";
}
if (x->verbosity) post("midifile: Header chunk format: %d (%s)", x->header_chunk.chunk_format, sP);
+ SETFLOAT(&output_atom, x->header_chunk.chunk_format);
+ outlet_anything( x->status_outlet, gensym("format"), 1, &output_atom);
n = fread(cP, 1L, 2L, x->fP);
x->offset += n;
@@ -659,6 +663,8 @@ static int midifile_read_header_chunk(t_midifile *x)
}
x->header_chunk.chunk_ntrks = midifile_get_multibyte_2(cP);
if (x->verbosity) post("midifile: Header chunk ntrks: %d", x->header_chunk.chunk_ntrks);
+ SETFLOAT(&output_atom, x->header_chunk.chunk_ntrks);
+ outlet_anything( x->status_outlet, gensym("tracks"), 1, &output_atom);
if (x->header_chunk.chunk_ntrks > MAX_TRACKS)
{
error ("midifile: Header chunk ntrks (%d) exceeds midifile MAX_TRACKS, set to %d",
@@ -680,8 +686,18 @@ static int midifile_read_header_chunk(t_midifile *x)
ticks = div & 0x0FF;
if (x->verbosity)
post("midifile: Header chunk division: 0x%X: %d frames per second, %d ticks per frame", div, smpte, ticks);
+ SETFLOAT(&output_atom, smpte);
+ outlet_anything( x->status_outlet, gensym("frames_per_sec"), 1, &output_atom);
+ SETFLOAT(&output_atom, ticks);
+ outlet_anything( x->status_outlet, gensym("ticks_per_frame"), 1, &output_atom);
+ }
+ else
+ {
+ if (x->verbosity)
+ post("midifile: Header chunk division: 0x%X: %d ticks per quarter note", div, div);
+ SETFLOAT(&output_atom, div);
+ outlet_anything( x->status_outlet, gensym("ticks_per_quarternote"), 1, &output_atom);
}
- else if (x->verbosity) post("midifile: Header chunk division: 0x%X: %d ticks per quarter note", div, div);
return 1;
}
@@ -1162,8 +1178,11 @@ static void midifile_get_next_track_chunk_data(t_midifile *x, int mfindex)
size_t delta_time, time_sig, len, i;
unsigned char status, c, d, nn, dd, cc, bb, mi, mcp, n;
char sf;
+ char fps, hour, min, sec, frame, subframe;
+
unsigned short sn;
unsigned char tt[3];
+ t_atom output_atom[6];
cP = x->track_chunk[mfindex].track_data + x->track_chunk[mfindex].track_index;
last_cP = x->track_chunk[mfindex].track_data + x->track_chunk[mfindex].chunk_length;
@@ -1220,13 +1239,24 @@ static void midifile_get_next_track_chunk_data(t_midifile *x, int mfindex)
x->midi_data[0].a_w.w_float = status;
outlet_list(x->midi_list_outlet, &s_list, 1, x->midi_data);
break;
- case 0xFF:
+ case 0xFF: /* meta event */
c = *cP++;
cP = midifile_read_var_len(cP, &len);/* meta length */
if (x->verbosity) post("midifile: Track %d Meta: %02X length %lu", mfindex, c, len);
switch (c)
{
- case 0x58:
+ case 0x59: /* key signature */
+ sf = *(signed char *)cP++;
+ mi = *cP++;
+ if (x->verbosity)
+ post ("midifile: Key Signature: %d %s, %s",
+ sf, (sf<0)?"flats":"sharps", (mi)?"minor":"major");
+ SETFLOAT(&output_atom[0], sf);
+ SETFLOAT(&output_atom[1], mi);
+ SETSYMBOL(&output_atom[2], midifile_key_name(sf, mi));
+ outlet_anything( x->status_outlet, gensym("key_sig"), 3, output_atom);
+ break;
+ case 0x58: /* time signature */
nn = *cP++;
dd = *cP++;
dd = 1<<(dd);
@@ -1235,87 +1265,150 @@ static void midifile_get_next_track_chunk_data(t_midifile *x, int mfindex)
if (x->verbosity)
post ("midifile: Time Signature: %d/%d %d clocks per tick, %d 32nd notes per quarternote",
nn, dd, cc, bb);
+ SETFLOAT(&output_atom[0], nn);
+ SETFLOAT(&output_atom[1], dd);
+ SETFLOAT(&output_atom[2], cc);
+ SETFLOAT(&output_atom[3], bb);
+ outlet_anything( x->status_outlet, gensym("time_sig"), 4, output_atom);
break;
- case 0x59:
- sf = *(signed char *)cP++;
- mi = *cP++;
- if (x->verbosity)
- post ("midifile: Key Signature: %d %s, %s",
- sf, (sf<0)?"flats":"sharps", (mi)?"minor":"major");
+ case 0x54: /* smpte offset */
+ hour = *cP++; /* hour is mixed with fps as 0ffhhhhhh */
+ switch (hour>>6)
+ {
+ case 0:
+ fps = 24;
+ break;
+ case 1:
+ fps = 25;
+ break;
+ case 2:
+ fps = 29;/* 30 fps dropframe */
+ break;
+ case 3:
+ fps = 30;
+ default:
+ fps = 0; /* error */
+ }
+ hour = hour & 0x3F;
+ min = *cP++;
+ sec = *cP++;
+ frame = *cP++;
+ subframe = *cP++;
+ if (x->verbosity) post ("midifile: %lu SMPTE offset: %d:%d:%d:%d:%d, %d fps", hour, min, sec, frame, subframe, fps);
+ SETFLOAT(&output_atom[0], hour);
+ SETFLOAT(&output_atom[1], min);
+ SETFLOAT(&output_atom[2], sec);
+ SETFLOAT(&output_atom[3], frame);
+ SETFLOAT(&output_atom[4], subframe);
+ SETFLOAT(&output_atom[5], fps);
+ outlet_anything( x->status_outlet, gensym("smpte"), 6, output_atom);
break;
- case 0x51:
+ case 0x51: /* set tempo */
tt[0] = *cP++;
tt[1] = *cP++;
tt[2] = *cP++;
time_sig = midifile_get_multibyte_3(tt);
if (x->verbosity) post ("midifile: %lu microseconds per MIDI quarter-note", time_sig);
+ SETFLOAT(&output_atom[0], time_sig);
+ outlet_anything( x->status_outlet, gensym("microsec_per_quarternote"), 1, output_atom);
break;
- case 0x2F:
+ case 0x2F: /* end of track */
if (x->verbosity) post ("midifile: End of Track %d", mfindex);
delta_time = NO_MORE_ELEMENTS;
+ SETFLOAT(&output_atom[0], mfindex);
+ SETFLOAT(&output_atom[1], x->total_time);
+ outlet_anything( x->status_outlet, gensym("end"), 2, output_atom);
cP += len;
break;
case 0x21:
tt[0] = *cP++;
if (x->verbosity) post ("midifile: MIDI port or cable number (unofficial): %d", tt[0]);
break;
- case 0x20:
+ case 0x20: /* MIDI channel prefix */
mcp = *cP++;
if (x->verbosity) post ("midifile: MIDI Channel Prefix: %d", mcp);
+ SETFLOAT(&output_atom[0], mfindex);
+ SETFLOAT(&output_atom[1], mcp);
+ outlet_anything( x->status_outlet, gensym("channel"), 2, output_atom);
break;
- case 0x06:
+ case 0x07: /* cue point */
+ str = cP;
+ c = cP[len];
+ cP[len] = '\0'; /* null terminate temporarily */
+ if (x->verbosity) post ("midifile: Cue Point: %s", str);
+ SETSYMBOL(&output_atom[0], gensym(str));
+ outlet_anything( x->status_outlet, gensym("cue"), 1, output_atom);
+ cP[len] = c;
+ cP += len;
+ break;
+ case 0x06: /* marker */
str = cP;
c = cP[len];
cP[len] = '\0'; /* null terminate temporarily */
if (x->verbosity) post ("midifile: Marker: %s", str);
+ SETSYMBOL(&output_atom[0], gensym(str));
+ outlet_anything( x->status_outlet, gensym("marker"), 1, output_atom);
cP[len] = c;
cP += len;
break;
- case 0x05:
+ case 0x05: /* lyrics */
str = cP;
c = cP[len];
cP[len] = '\0'; /* null terminate temporarily */
if (x->verbosity) post ("midifile: Lyric: %s", str);
+ SETSYMBOL(&output_atom[0], gensym(str));
+ outlet_anything( x->status_outlet, gensym("lyrics"), 1, output_atom);
cP[len] = c;
cP += len;
break;
- case 0x04:
+ case 0x04: /* instrument name */
str = cP;
c = cP[len];
cP[len] = '\0'; /* null terminate temporarily */
if (x->verbosity) post ("midifile: Instrument Name: %s", str);
+ SETSYMBOL(&output_atom[0], gensym(str));
+ outlet_anything( x->status_outlet, gensym("instr_name"), 1, output_atom);
cP[len] = c;
cP += len;
break;
- case 0x03:
+ case 0x03: /* sequence/track name */
str = cP;
c = cP[len];
cP[len] = '\0'; /* null terminate temporarily */
if (x->verbosity) post ("midifile: Sequence/Track Name: %s", str);
+ SETFLOAT(&output_atom[0], mfindex);
+ SETSYMBOL(&output_atom[1], gensym(str));
+ outlet_anything( x->status_outlet, gensym("name"), 2, output_atom);
cP[len] = c;
cP += len;
break;
- case 0x02:
+ case 0x02:/* copyright notice */
str = cP;
c = cP[len];
cP[len] = '\0'; /* null terminate temporarily */
if (x->verbosity) post ("midifile: Copyright Notice: %s", str);
+ SETSYMBOL(&output_atom[0], gensym(str));
+ outlet_anything( x->status_outlet, gensym("copyright"), 1, output_atom);
cP[len] = c;
cP += len;
break;
- case 0x01:
+ case 0x01: /* text event */
str = cP;
c = cP[len];
cP[len] = '\0'; /* null terminate temporarily */
if (x->verbosity) post ("midifile: Text Event: %s", str);
+ SETSYMBOL(&output_atom[0], gensym(str));
+ outlet_anything( x->status_outlet, gensym("text"), 1, output_atom);
cP[len] = c;
cP += len;
break;
- case 0x00:
+ case 0x00: /* sequence number */
tt[0] = *cP++;
tt[1] = *cP++;
sn = midifile_get_multibyte_2(tt);
if (x->verbosity) post ("midifile: Sequence Number %d", sn);
+ SETFLOAT(&output_atom[0], sn);
+ outlet_anything( x->status_outlet, gensym("seq_num"), 1, output_atom);
break;
default:
if (x->verbosity) post ("midifile: Unknown: %02X", c);
@@ -1463,4 +1556,29 @@ static void midifile_skip_next_track_chunk_data(t_midifile *x, int mfindex)
else x->track_chunk[mfindex].total_time += delta_time;
}
+static t_symbol *midifile_key_name(int sf, int mi)
+{
+ /* set a symbole to the key name baseed on */
+ /* sf= number of sharps if positive, else flats
+ /* mi = 0=major 1= minor */
+ char *maj_key[15]={"B", "Gb", "Db", "Ab", "Eb", "Bb", "F", "C", "G", "D", "A", "E", "B", "F#", "Db"};
+ char *min_key[15]={"G#", "Eb", "Bb", "F", "C", "G", "D", "A", "E", "B", "F#", "C#", "G#", "D#", "Bb"};
+ char buf[8] = {"no_key."};
+ int i;
+
+ if ((sf >= -7)&&(sf <= 7))
+ {
+ if (mi == 1)
+ {
+ i = sprintf(buf, "%s", min_key[sf+7]);
+ sprintf(buf+i, "%s", "Minor");
+ }
+ else if (mi == 0)
+ {
+ i = sprintf(buf, "%s", maj_key[sf+7]);
+ sprintf(buf+i, "%s", "Major");
+ }
+ }
+ return gensym(buf);
+}
/* fin midifile.c */
generated by cgit v1.2.1 (git 2.18.0) at 2024-06-23 19:12:53 +0000