ptformat: Update to upstream master 4e653041
- Better MIDI support
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f33cd95047
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cce575eb72
@ -719,37 +719,47 @@ PTFFormat::parseaudio5(void) {
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void
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PTFFormat::parsemidi(void) {
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uint64_t i, k, n_midi_events, zero_ticks;
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uint64_t midi_pos, midi_len, max_pos;
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uint64_t tr, i, k, lastk, n_midi_events, zero_ticks;
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uint64_t midi_pos, midi_len, max_pos, region_pos;
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uint8_t midi_velocity, midi_note;
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uint16_t rsize;
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uint16_t ridx;
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uint16_t nmiditracks, regionnumber = 0;
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uint32_t nregions, mr;
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struct mchunk_t {
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uint64_t zero;
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uint64_t maxlen;
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std::vector<midi_ev_t> chunk;
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};
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std::vector<struct mchunk_t> midichunks;
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midi_ev_t m;
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bool found = false;
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int max_regions = regions.size();
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char midiname[26] = { 0 };
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// Find MdNLB
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k = 0;
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lastk = 0;
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// Parse all midi tracks, treat each group of midi bytes as a track
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// Parse all midi chunks, not 1:1 mapping to regions yet
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while (k + 35 < len) {
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found = false;
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max_pos = 0;
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std::vector<midi_ev_t> midi;
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while (k < len) {
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while (k < len && !found) {
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if ( (ptfunxored[k ] == 'M') &&
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(ptfunxored[k+1] == 'd') &&
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(ptfunxored[k+2] == 'N') &&
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(ptfunxored[k+3] == 'L') &&
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(ptfunxored[k+4] == 'B')) {
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found = true;
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lastk = k;
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break;
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}
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k++;
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}
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if (!found) {
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return;
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k = lastk;
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break;
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}
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k += 11;
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@ -794,23 +804,199 @@ PTFFormat::parsemidi(void) {
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}
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#endif
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midi.push_back(m);
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//fprintf(stderr, "MIDI: Note=%d Vel=%d Start=%d(samples) Len=%d(samples)\n", midi_note, midi_velocity, midi_pos, midi_len);
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}
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midichunks.push_back({zero_ticks, max_pos, midi});
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}
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rsize = (uint16_t)regions.size();
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snprintf(midiname, 20, "MIDI-%d", rsize - max_regions + 1);
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lastk = k;
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// Map midi chunks to regions
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while (k < len) {
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char midiregionname[256];
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uint8_t namelen;
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found = false;
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while (k < len && !found) {
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if ( (ptfunxored[k ] == 'M') &&
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(ptfunxored[k+1] == 'd') &&
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(ptfunxored[k+2] == 'T') &&
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(ptfunxored[k+3] == 'E') &&
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(ptfunxored[k+4] == 'L')) {
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found = true;
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lastk = k;
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break;
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}
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k++;
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}
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if (!found) {
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k = lastk;
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break;
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}
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k += 41;
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nregions = 0;
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nregions |= ptfunxored[k];
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nregions |= ptfunxored[k+1] << 8;
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for (mr = 0; mr < nregions; mr++) {
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found = false;
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while (k < len && !found) {
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if ( (ptfunxored[k ] == 0x5a) &&
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(ptfunxored[k+1] == 0x0c)) {
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found = true;
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lastk = k;
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break;
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}
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k++;
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}
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if (!found) {
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k = lastk;
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break;
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}
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k += 9;
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namelen = ptfunxored[k];
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for (i = 0; i < namelen; i++) {
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midiregionname[i] = ptfunxored[k+4+i];
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}
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midiregionname[namelen] = '\0';
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k += 4 + namelen;
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k += 5;
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/*
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region_pos = (uint64_t)ptfunxored[k] |
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(uint64_t)ptfunxored[k+1] << 8 |
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(uint64_t)ptfunxored[k+2] << 16 |
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(uint64_t)ptfunxored[k+3] << 24 |
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(uint64_t)ptfunxored[k+4] << 32;
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*/
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found = false;
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while (k < len && !found) {
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if ( (ptfunxored[k ] == 0xfe) &&
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(ptfunxored[k+1] == 0xff) &&
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(ptfunxored[k+2] == 0xff) &&
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(ptfunxored[k+3] == 0xff)) {
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found = true;
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lastk = k;
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break;
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}
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k++;
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}
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if (!found) {
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k = lastk;
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break;
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}
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k += 40;
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ridx = ptfunxored[k];
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ridx |= ptfunxored[k+1] << 8;
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struct mchunk_t mchunk = *(midichunks.begin()+ridx);
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wav_t w = { std::string(""), 0, 0, 0 };
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region_t r = {
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midiname,
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rsize,
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midiregionname,
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regionnumber++,
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//(int64_t)mchunk.zero,
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(int64_t)0xe8d4a51000ull,
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(int64_t)(0),
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(int64_t)(0),
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(int64_t)(max_pos*sessionrate*60/(960000*120)),
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//(int64_t)(max_pos*sessionrate*60/(960000*120)),
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(int64_t)mchunk.maxlen,
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w,
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midi,
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mchunk.chunk,
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};
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regions.push_back(r);
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midiregions.push_back(r);
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}
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}
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found = false;
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// Put midi regions on midi tracks
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while (k < len && !found) {
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if ( (ptfunxored[k ] == 0x5a) &&
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(ptfunxored[k+1] == 0x03)) {
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found = true;
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break;
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}
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k++;
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}
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if (!found)
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return;
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k -= 4;
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nmiditracks = 0;
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nmiditracks |= ptfunxored[k];
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nmiditracks |= ptfunxored[k+1] << 8;
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k += 4;
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for (tr = 0; tr < nmiditracks; tr++) {
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char miditrackname[256];
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uint8_t namelen;
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found = false;
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while (k < len && !found) {
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if ( (ptfunxored[k ] == 0x5a) &&
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(ptfunxored[k+1] == 0x03)) {
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found = true;
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break;
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}
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k++;
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}
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if (!found)
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return;
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namelen = ptfunxored[k+9];
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for (i = 0; i < namelen; i++) {
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miditrackname[i] = ptfunxored[k+13+i];
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}
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miditrackname[namelen] = '\0';
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k += 13 + namelen;
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nregions = 0;
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nregions |= ptfunxored[k];
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nregions |= ptfunxored[k+1] << 8;
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for (i = 0; (i < nregions) && (k < len); i++) {
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k += 24;
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ridx = 0;
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ridx |= ptfunxored[k];
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ridx |= ptfunxored[k+1] << 8;
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k += 5;
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region_pos = (uint64_t)ptfunxored[k] |
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(uint64_t)ptfunxored[k+1] << 8 |
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(uint64_t)ptfunxored[k+2] << 16 |
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(uint64_t)ptfunxored[k+3] << 24 |
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(uint64_t)ptfunxored[k+4] << 32;
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k += 20;
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track_t mtr;
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mtr.name = string(miditrackname);
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mtr.index = tr;
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mtr.playlist = 0;
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// Find the midi region with index 'ridx'
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std::vector<region_t>::iterator begin = midiregions.begin();
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std::vector<region_t>::iterator finish = midiregions.end();
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std::vector<region_t>::iterator mregion;
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wav_t w = { std::string(""), 0, 0, 0 };
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std::vector<midi_ev_t> m;
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region_t r = { std::string(""), ridx, 0, 0, 0, w, m};
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if ((mregion = std::find(begin, finish, r)) != finish) {
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mtr.reg = *mregion;
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mtr.reg.startpos = std::labs(region_pos - mtr.reg.startpos);
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miditracks.push_back(mtr);
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}
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}
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}
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}
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@ -85,7 +85,9 @@ public:
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std::vector<wav_t> audiofiles;
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std::vector<region_t> regions;
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std::vector<region_t> midiregions;
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std::vector<track_t> tracks;
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std::vector<track_t> miditracks;
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static bool regionexistsin(std::vector<region_t> reg, uint16_t index) {
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std::vector<region_t>::iterator begin = reg.begin();
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