if (f == 0) {
return -1;
}
-
+
if ((_smf = smf_load (f)) == 0) {
return -1;
}
if ((_smf_track = smf_get_track_by_number(_smf, track)) == 0) {
return -2;
- }
+ }
//cerr << "Track " << track << " # events: " << _smf_track->number_of_events << endl;
if (_smf_track->number_of_events == 0) {
_smf = smf_new();
if (_smf == NULL) {
- return -1;
+ return -1;
}
if (smf_set_ppqn(_smf, ppqn) != 0) {
_smf_track->next_event_number = 0;
- {
- /* put a stub file on disk */
+ {
+ /* put a stub file on disk */
+
+ PBD::StdioFileDescriptor d (_file_path, "w+");
+ FILE* f = d.allocate ();
+ if (f == 0) {
+ return -1;
+ }
- PBD::StdioFileDescriptor d (_file_path, "w+");
- FILE* f = d.allocate ();
- if (f == 0) {
- return -1;
- }
-
- if (smf_save (_smf, f)) {
- return -1;
- }
- }
+ if (smf_save (_smf, f)) {
+ return -1;
+ }
+ }
_empty = true;
assert(delta_t);
assert(size);
assert(buf);
- assert(note_id);
+ assert(note_id);
if ((event = smf_track_get_next_event(_smf_track)) != NULL) {
*delta_t = event->delta_time_pulses;
if (smf_event_is_metadata(event)) {
- *note_id = -1; // "no note id in this meta-event */
-
- if (event->midi_buffer[1] == 0x7f) { // Sequencer-specific
-
- uint32_t evsize;
- uint32_t lenlen;
-
- if (smf_extract_vlq (&event->midi_buffer[2], event->midi_buffer_length-2, &evsize, &lenlen) == 0) {
-
- if (event->midi_buffer[2+lenlen] == 0x99 && // Evoral
- event->midi_buffer[3+lenlen] == 0x1) { // Evoral Note ID
-
- uint32_t id;
- uint32_t idlen;
-
- if (smf_extract_vlq (&event->midi_buffer[4+lenlen], event->midi_buffer_length-(4+lenlen), &id, &idlen) == 0) {
- *note_id = id;
- }
- }
- }
- }
+ *note_id = -1; // "no note id in this meta-event */
+
+ if (event->midi_buffer[1] == 0x7f) { // Sequencer-specific
+
+ uint32_t evsize;
+ uint32_t lenlen;
+
+ if (smf_extract_vlq (&event->midi_buffer[2], event->midi_buffer_length-2, &evsize, &lenlen) == 0) {
+
+ if (event->midi_buffer[2+lenlen] == 0x99 && // Evoral
+ event->midi_buffer[3+lenlen] == 0x1) { // Evoral Note ID
+
+ uint32_t id;
+ uint32_t idlen;
+
+ if (smf_extract_vlq (&event->midi_buffer[4+lenlen], event->midi_buffer_length-(4+lenlen), &id, &idlen) == 0) {
+ *note_id = id;
+ }
+ }
+ }
+ }
return 0; /* this is a meta-event */
}
assert(midi_event_is_valid(*buf, *size));
/* printf("SMF::read_event @ %u: ", *delta_t);
- for (size_t i = 0; i < *size; ++i) {
- printf("%X ", (*buf)[i]);
- } printf("\n") */
+ for (size_t i = 0; i < *size; ++i) {
+ printf("%X ", (*buf)[i]);
+ } printf("\n") */
return event_size;
} else {
}
/* printf("SMF::append_event_delta @ %u:", delta_t);
- for (size_t i = 0; i < size; ++i) {
- printf("%X ", buf[i]);
- } printf("\n"); */
+ for (size_t i = 0; i < size; ++i) {
+ printf("%X ", buf[i]);
+ } printf("\n"); */
if (!midi_event_is_valid(buf, size)) {
cerr << "WARNING: SMF ignoring illegal MIDI event" << endl;
smf_event_t* event;
- /* XXX july 2010: currently only store event ID's for notes, program changes and bank changes
- */
+ /* XXX july 2010: currently only store event ID's for notes, program changes and bank changes
+ */
uint8_t const c = buf[0] & 0xf0;
bool const store_id = (
c == MIDI_CMD_NOTE_OFF ||
c == MIDI_CMD_PGM_CHANGE ||
(c == MIDI_CMD_CONTROL && (buf[1] == MIDI_CTL_MSB_BANK || buf[1] == MIDI_CTL_LSB_BANK))
- );
+ );
if (store_id && note_id >= 0) {
- int idlen;
- int lenlen;
- uint8_t idbuf[16];
- uint8_t lenbuf[16];
+ int idlen;
+ int lenlen;
+ uint8_t idbuf[16];
+ uint8_t lenbuf[16];
- event = smf_event_new ();
- assert(event != NULL);
+ event = smf_event_new ();
+ assert(event != NULL);
- /* generate VLQ representation of note ID */
- idlen = smf_format_vlq (idbuf, sizeof(idbuf), note_id);
+ /* generate VLQ representation of note ID */
+ idlen = smf_format_vlq (idbuf, sizeof(idbuf), note_id);
- /* generate VLQ representation of meta event length,
- which is the idlen + 2 bytes (Evoral type ID plus Note ID type)
- */
+ /* generate VLQ representation of meta event length,
+ which is the idlen + 2 bytes (Evoral type ID plus Note ID type)
+ */
- lenlen = smf_format_vlq (lenbuf, sizeof(lenbuf), idlen+2);
+ lenlen = smf_format_vlq (lenbuf, sizeof(lenbuf), idlen+2);
- event->midi_buffer_length = 2 + lenlen + 2 + idlen;
- event->midi_buffer = new uint8_t[event->midi_buffer_length];
+ event->midi_buffer_length = 2 + lenlen + 2 + idlen;
+ /* this should be allocated by malloc(3) because libsmf will
+ call free(3) on it
+ */
+ event->midi_buffer = (uint8_t*) malloc (sizeof (uint8_t*) * event->midi_buffer_length);
- event->midi_buffer[0] = 0xff; // Meta-event
- event->midi_buffer[1] = 0x7f; // Sequencer-specific
- memcpy (&event->midi_buffer[2], lenbuf, lenlen);
- event->midi_buffer[2+lenlen] = 0x99; // Evoral type ID
- event->midi_buffer[3+lenlen] = 0x1; // Evoral type Note ID
- memcpy (&event->midi_buffer[4+lenlen], idbuf, idlen);
+ event->midi_buffer[0] = 0xff; // Meta-event
+ event->midi_buffer[1] = 0x7f; // Sequencer-specific
+ memcpy (&event->midi_buffer[2], lenbuf, lenlen);
+ event->midi_buffer[2+lenlen] = 0x99; // Evoral type ID
+ event->midi_buffer[3+lenlen] = 0x1; // Evoral type Note ID
+ memcpy (&event->midi_buffer[4+lenlen], idbuf, idlen);
- assert(_smf_track);
- smf_track_add_event_delta_pulses(_smf_track, event, 0);
- }
+ assert(_smf_track);
+ smf_track_add_event_delta_pulses(_smf_track, event, 0);
+ }
event = smf_event_new_from_pointer(buf, size);
assert(event != NULL);
PBD::StdioFileDescriptor d (_file_path, "w+");
FILE* f = d.allocate ();
if (f == 0) {
- throw FileError ();
+ throw FileError (_file_path);
}
if (smf_save(_smf, f) != 0) {
- throw FileError();
+ throw FileError (_file_path);
}
}
void
SMF::set_path (const std::string& p)
{
- _file_path = p;
+ _file_path = p;
}
} // namespace Evoral
projects / ardour.git / blobdiff