libcm is a C development framework with an emphasis on audio signal processing applications.
Du kan inte välja fler än 25 ämnen Ämnen måste starta med en bokstav eller siffra, kan innehålla bindestreck ('-') och vara max 35 tecken långa.

cmProc4.c 110KB

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  1. #include "cmPrefix.h"
  2. #include "cmGlobal.h"
  3. #include "cmRpt.h"
  4. #include "cmErr.h"
  5. #include "cmCtx.h"
  6. #include "cmMem.h"
  7. #include "cmMallocDebug.h"
  8. #include "cmLinkedHeap.h"
  9. #include "cmFloatTypes.h"
  10. #include "cmComplexTypes.h"
  11. #include "cmFileSys.h"
  12. #include "cmJson.h"
  13. #include "cmSymTbl.h"
  14. #include "cmAudioFile.h"
  15. #include "cmText.h"
  16. #include "cmProcObj.h"
  17. #include "cmProcTemplate.h"
  18. #include "cmMath.h"
  19. #include "cmProc.h"
  20. #include "cmVectOps.h"
  21. #include "cmMidi.h"
  22. #include "cmMidiFile.h"
  23. #include "cmTimeLine.h"
  24. #include "cmScore.h"
  25. #include "cmProc4.h"
  26. #include "cmTime.h"
  27. cmScFol* cmScFolAlloc( cmCtx* c, cmScFol* p, cmReal_t srate, cmScH_t scH, unsigned bufN, unsigned minWndLookAhead, unsigned maxWndCnt, unsigned minVel )
  28. {
  29. cmScFol* op = cmObjAlloc(cmScFol,c,p);
  30. if( srate != 0 )
  31. if( cmScFolInit(op,srate,scH,bufN,minWndLookAhead,maxWndCnt,minVel) != cmOkRC )
  32. cmScFolFree(&op);
  33. return op;
  34. }
  35. cmRC_t cmScFolFree( cmScFol** pp )
  36. {
  37. cmRC_t rc = cmOkRC;
  38. if( pp==NULL || *pp==NULL )
  39. return rc;
  40. cmScFol* p = *pp;
  41. if((rc = cmScFolFinal(p)) != cmOkRC )
  42. return rc;
  43. unsigned i;
  44. for(i=0; i<p->locN; ++i)
  45. cmMemFree(p->loc[i].evtV);
  46. cmMemFree(p->loc);
  47. cmMemFree(p->bufV);
  48. cmObjFree(pp);
  49. return rc;
  50. }
  51. cmRC_t cmScFolFinal( cmScFol* p )
  52. {
  53. cmMemFree(p->edWndMtx);
  54. return cmOkRC;
  55. }
  56. void _cmScFolPrint( cmScFol* p )
  57. {
  58. int i,j;
  59. for(i=0; i<p->locN; ++i)
  60. {
  61. printf("%2i %5i ",p->loc[i].barNumb,p->loc[i].scIdx);
  62. for(j=0; j<p->loc[i].evtCnt; ++j)
  63. printf("%s ",cmMidiToSciPitch(p->loc[i].evtV[j].pitch,NULL,0));
  64. printf("\n");
  65. }
  66. }
  67. unsigned* _cmScFolAllocEditDistMtx(unsigned maxN)
  68. {
  69. maxN += 1;
  70. unsigned* m = cmMemAllocZ(unsigned,maxN*maxN);
  71. unsigned* p = m;
  72. unsigned i;
  73. // initialize the comparison matrix with the default costs in the
  74. // first row and column
  75. // (Note that this matrix is not oriented in column major order like most 'cm' matrices.)
  76. for(i=0; i<maxN; ++i)
  77. {
  78. p[i] = i; // 0th row
  79. p[ i * maxN ] = i; // 0th col
  80. }
  81. return m;
  82. }
  83. cmRC_t cmScFolInit( cmScFol* p, cmReal_t srate, cmScH_t scH, unsigned bufN, unsigned minWndLookAhead, unsigned maxWndCnt, unsigned minVel )
  84. {
  85. cmRC_t rc;
  86. if((rc = cmScFolFinal(p)) != cmOkRC )
  87. return rc;
  88. if( bufN > maxWndCnt )
  89. return cmCtxRtCondition( &p->obj, cmInvalidArgRC, "The score follower buffer count (%i) must be less than the max. window length (%i).",bufN,maxWndCnt );
  90. if( minWndLookAhead > maxWndCnt )
  91. return cmCtxRtCondition( &p->obj, cmInvalidArgRC, "The score follower look-ahead count (%i) must be less than the max. window length (%i).",minWndLookAhead,maxWndCnt);
  92. p->srate = srate;
  93. p->scH = scH;
  94. p->bufN = bufN;
  95. p->bufV = cmMemResizeZ(cmScFolBufEle_t,p->bufV,bufN);
  96. p->locN = cmScoreEvtCount(scH);
  97. p->loc = cmMemResizeZ(cmScFolLoc_t,p->loc,p->locN);
  98. p->sbi = cmInvalidIdx;
  99. p->sei = cmInvalidIdx;
  100. p->msln = minWndLookAhead;
  101. p->mswn = maxWndCnt;
  102. p->forwardCnt = 2;
  103. p->maxDist = 4;
  104. p->edWndMtx = _cmScFolAllocEditDistMtx(p->bufN);
  105. p->minVel = minVel;
  106. p->printFl = true;
  107. p->noBackFl = true;
  108. p->missCnt = 0;
  109. p->matchCnt = 0;
  110. p->eventIdx = 0;
  111. p->skipCnt = 0;
  112. p->ret_idx = cmInvalidIdx;
  113. // for each score location
  114. unsigned li,ei;
  115. for(li=0,ei=0; li<cmScoreLocCount(p->scH); ++li)
  116. {
  117. unsigned i,n;
  118. const cmScoreLoc_t* lp = cmScoreLoc(p->scH,li);
  119. // count the number of note events at location li
  120. for(n=0,i=0; i<lp->evtCnt; ++i)
  121. if( lp->evtArray[i]->type == kNonEvtScId )
  122. ++n;
  123. assert( ei+n <= p->locN );
  124. // duplicate each note at location li n times
  125. for(i=0; i<n; ++i)
  126. {
  127. unsigned j,k;
  128. p->loc[ei+i].evtCnt = n;
  129. p->loc[ei+i].evtV = cmMemAllocZ(cmScFolEvt_t,n);
  130. p->loc[ei+i].scIdx = li;
  131. p->loc[ei+i].barNumb = lp->barNumb;
  132. for(j=0,k=0; j<lp->evtCnt; ++j)
  133. if( lp->evtArray[j]->type == kNonEvtScId )
  134. {
  135. p->loc[ei+i].evtV[k].pitch = lp->evtArray[j]->pitch;
  136. p->loc[ei+i].evtV[k].scEvtIdx = lp->evtArray[j]->index;
  137. ++k;
  138. }
  139. }
  140. ei += n;
  141. }
  142. p->locN = ei;
  143. //_cmScFolPrint(p);
  144. return rc;
  145. }
  146. cmRC_t cmScFolReset( cmScFol* p, unsigned scEvtIdx )
  147. {
  148. int i,j;
  149. // empty the event buffer
  150. memset(p->bufV,0,sizeof(cmScFolBufEle_t)*p->bufN);
  151. // don't allow the score index to be prior to the first note
  152. //if( scEvtIdx < p->loc[0].scIdx )
  153. // scEvtIdx = p->loc[0].scIdx;
  154. p->sei = cmInvalidIdx;
  155. p->sbi = cmInvalidIdx;
  156. p->missCnt = 0;
  157. p->matchCnt = 0;
  158. p->eventIdx = 0;
  159. p->skipCnt = 0;
  160. p->ret_idx = cmInvalidIdx;
  161. // locate the score element in svV[] that is closest to,
  162. // and possibly after, scEvtIdx.
  163. for(i=0; i<p->locN-1; ++i)
  164. {
  165. for(j=0; j<p->loc[i].evtCnt; ++j)
  166. if( p->loc[i].evtV[j].scEvtIdx <= scEvtIdx )
  167. p->sbi = i;
  168. else
  169. break;
  170. }
  171. // locate the score element at the end of the look-ahead region
  172. for(; i<p->locN; ++i)
  173. {
  174. for(j=0; j<p->loc[i].evtCnt; ++j)
  175. if( p->loc[i].evtV[j].scEvtIdx <= scEvtIdx + p->msln )
  176. p->sei = i;
  177. }
  178. return cmOkRC;
  179. }
  180. bool _cmScFolIsMatch( const cmScFolLoc_t* loc, unsigned pitch )
  181. {
  182. unsigned i;
  183. for(i=0; i<loc->evtCnt; ++i)
  184. if( loc->evtV[i].pitch == pitch )
  185. return true;
  186. return false;
  187. }
  188. int _cmScFolMatchCost( const cmScFolLoc_t* loc, unsigned li, const cmScFolBufEle_t* pitch, unsigned pi )
  189. {
  190. if( _cmScFolIsMatch(loc+li,pitch[pi].val) )
  191. return 0;
  192. if( li>0 && pi>0 )
  193. if( _cmScFolIsMatch(loc+li-1,pitch[pi].val) && _cmScFolIsMatch(loc+li,pitch[pi-1].val) )
  194. return 0;
  195. return 1;
  196. }
  197. int _cmScFolDist(unsigned mtxMaxN, unsigned* m, const cmScFolBufEle_t* s1, const cmScFolLoc_t* s0, int n )
  198. {
  199. mtxMaxN += 1;
  200. assert( n < mtxMaxN );
  201. int v = 0;
  202. unsigned i;
  203. // Note that m[maxN,maxN] is not oriented in column major order like most 'cm' matrices.
  204. for(i=1; i<n+1; ++i)
  205. {
  206. unsigned ii = i * mtxMaxN; // current row
  207. unsigned i_1 = ii - mtxMaxN; // previous row
  208. unsigned j;
  209. for( j=1; j<n+1; ++j)
  210. {
  211. //int cost = s0[i-1] == s1[j-1] ? 0 : 1;
  212. //int cost = _cmScFolIsMatch(s0 + i-1, s1[j-1]) ? 0 : 1;
  213. int cost = _cmScFolMatchCost(s0,i-1,s1,j-1);
  214. //m[i][j] = min( m[i-1][j] + 1, min( m[i][j-1] + 1, m[i-1][j-1] + cost ) );
  215. m[ ii + j ] = v = cmMin( m[ i_1 + j] + 1, cmMin( m[ ii + j - 1] + 1, m[ i_1 + j - 1 ] + cost ) );
  216. }
  217. }
  218. return v;
  219. }
  220. void _cmScFolRpt0( cmScFol* p, unsigned locIdx, unsigned locN, const cmScFolBufEle_t* b, unsigned bn, unsigned min_idx )
  221. {
  222. unsigned i;
  223. int n;
  224. printf("--------------- event:%i ------------- \n",p->eventIdx);
  225. printf("loc: ");
  226. for(i=0; i<locN; ++i)
  227. printf("%4i ",i+locIdx);
  228. printf("\n");
  229. for(n=0,i=0; i<locN; ++i)
  230. if( p->loc[locIdx+i].evtCnt > n )
  231. n = p->loc[locIdx+i].evtCnt;
  232. --n;
  233. for(; n>=0; --n)
  234. {
  235. printf("sc%1i: ",n);
  236. for(i=0; i<locN; ++i)
  237. {
  238. if( n < p->loc[locIdx+i].evtCnt )
  239. printf("%4s ",cmMidiToSciPitch(p->loc[locIdx+i].evtV[n].pitch,NULL,0));
  240. else
  241. printf(" ");
  242. }
  243. printf("\n");
  244. }
  245. printf("perf:");
  246. for(i=0; i<min_idx; ++i)
  247. printf(" ");
  248. for(i=0; i<bn; ++i)
  249. printf("%4s ",cmMidiToSciPitch(b[i].val,NULL,0));
  250. printf("\n");
  251. }
  252. void _cmScFolRpt1( cmScFol*p, unsigned minDist, unsigned ret_idx, unsigned d1, unsigned missCnt, unsigned matchCnt )
  253. {
  254. printf("dist:%i miss:%i match:%i skip:%i vel:%i ",minDist,missCnt,matchCnt,p->skipCnt,d1);
  255. if( ret_idx != cmInvalidIdx )
  256. printf("ret_idx:%i ",ret_idx);
  257. printf("\n");
  258. }
  259. unsigned cmScFolExec( cmScFol* p, unsigned smpIdx, unsigned status, cmMidiByte_t d0, cmMidiByte_t d1 )
  260. {
  261. unsigned ret_idx = cmInvalidIdx;
  262. if( p->sbi == cmInvalidIdx )
  263. {
  264. cmCtxRtCondition( &p->obj, cmInvalidArgRC, "An initial score search location has not been set." );
  265. return ret_idx;
  266. }
  267. if( (status&0xf0) != kNoteOnMdId )
  268. return ret_idx;
  269. ++p->eventIdx;
  270. // reject notes with very low velocity
  271. if( d1 < p->minVel )
  272. {
  273. ++p->skipCnt;
  274. return ret_idx;
  275. }
  276. // left shift bufV[] to make the right-most element available - then copy in the new element
  277. memmove(p->bufV, p->bufV+1, sizeof(cmScFolBufEle_t)*(p->bufN-1));
  278. p->bufV[ p->bufN-1 ].smpIdx = smpIdx;
  279. p->bufV[ p->bufN-1 ].val = d0;
  280. p->bufV[ p->bufN-1 ].validFl= true;
  281. // fill in ebuf[] with the valid values in bufV[]
  282. int en = cmMin(p->eventIdx,p->bufN);
  283. int bbi = p->eventIdx>=p->bufN ? 0 : p->bufN-p->eventIdx;
  284. // en is the count of valid elements in ebuf[].
  285. // ebuf[p->boi] is the first valid element
  286. int j = 0;
  287. int minDist = INT_MAX;
  288. int minIdx = cmInvalidIdx;
  289. int dist;
  290. // the score wnd must always be as long as the buffer n
  291. // at the end of the score this may not be the case
  292. // (once sei hits locN - at this point we must begin
  293. // shrinking ewnd[] to contain only the last p->sei-p->sbi+1 elements)
  294. assert( p->sei-p->sbi+1 >= en );
  295. for(j=0; p->sbi+en+j-1 <= p->sei; ++j)
  296. {
  297. // use <= minDist to choose the latest window with the lowest match
  298. if((dist = _cmScFolDist(p->bufN, p->edWndMtx, p->bufV+bbi, p->loc + p->sbi+j, en )) < minDist )
  299. {
  300. // only make an eql match if the posn is greater than the last location
  301. if( dist==minDist && p->ret_idx != cmInvalidId && p->ret_idx >= p->sbi+minIdx+en-1 )
  302. continue;
  303. minDist = dist;
  304. minIdx = j;
  305. }
  306. }
  307. // The best fit is on the score window: p->loc[sbi+minIdx : sbi+minIdx+en-1 ]
  308. if( p->printFl )
  309. _cmScFolRpt0( p, p->sbi, p->sei-p->sbi+1, p->bufV+bbi, en, minIdx );
  310. // save current missCnt for later printing
  311. unsigned missCnt = p->missCnt;
  312. // if a perfect match occurred
  313. if( minDist == 0 )
  314. {
  315. ret_idx = p->sbi + minIdx + en - 1;
  316. p->missCnt = 0;
  317. // we had a perfect match - shrink the window to it's minumum size
  318. p->sbi += (en==p->bufN) ? minIdx + 1 : 0; // move wnd begin forward to just past first match
  319. p->sei = p->sbi + minIdx + en + p->msln; // move wnd end forward to lead by the min look-ahead
  320. }
  321. else
  322. {
  323. if( minDist > p->maxDist )
  324. ret_idx = cmInvalidIdx;
  325. else
  326. // if the last event matched - then return the match location as the current score location
  327. if( _cmScFolIsMatch(p->loc+(p->sbi+minIdx+en-1),p->bufV[p->bufN-1].val) )
  328. {
  329. ret_idx = p->sbi + minIdx + en - 1;
  330. p->missCnt = 0;
  331. // this is probably a pretty good match reduce the part of the window prior to
  332. // the first match (bring the end of the window almost up to the end of the
  333. // buffers sync position)
  334. if( en >= p->bufN-1 && (en+2) <= ret_idx )
  335. p->sbi = ret_idx - (en+2);
  336. }
  337. else // the last event does not match based on the optimal edit-distance alignment
  338. {
  339. // Look backward from the closest match location for a match to the current pitch.
  340. // The backward search scope is limited by the current value of 'missCnt'.
  341. unsigned i;
  342. j = p->sbi+minIdx+en-2;
  343. for(i=1; i+1 <= p->bufN && j>=p->sbi && i<=p->missCnt; ++i,--j)
  344. {
  345. // if this look-back location already matched then stop the backward search
  346. if(_cmScFolIsMatch(p->loc+j,p->bufV[p->bufN-1-i].val))
  347. break;
  348. // does this look-back location match the current pitch
  349. if(_cmScFolIsMatch(p->loc+j,p->bufV[p->bufN-1].val))
  350. {
  351. ret_idx = j;
  352. p->missCnt = i; // set missCnt to the cnt of steps backward necessary for a match
  353. break;
  354. }
  355. }
  356. // If the backward search did not find a match - look forward
  357. if( ret_idx == cmInvalidIdx )
  358. {
  359. unsigned i;
  360. j = p->sbi+minIdx+en;
  361. for(i=0; j<=p->sei && i<p->forwardCnt; ++i,++j)
  362. if( _cmScFolIsMatch(p->loc+j,p->bufV[p->bufN-1].val) )
  363. {
  364. ret_idx = j;
  365. break;
  366. }
  367. p->missCnt = ret_idx == cmInvalidIdx ? p->missCnt + 1 : 0;
  368. }
  369. }
  370. // Adjust the end window position (sei) based on the match location
  371. if( ret_idx == cmInvalidIdx )
  372. {
  373. // even though we didn't match move the end of the score window forward
  374. // this will enlarge the score window by one
  375. p->sei += 1;
  376. }
  377. else
  378. {
  379. assert( p->sei>=ret_idx);
  380. // force sei to lead by min look-ahead
  381. if( p->sei - ret_idx < p->msln )
  382. p->sei = ret_idx + p->msln;
  383. }
  384. assert( p->sei > p->sbi );
  385. // Adjust the begin window position
  386. if( p->noBackFl && ret_idx != cmInvalidIdx && en>=p->bufN && p->sbi > p->bufN )
  387. p->sbi = ret_idx - p->bufN;
  388. // if the score window length surpasses the max score window size
  389. // move the beginning index forward
  390. if( p->sei - p->sbi + 1 > p->mswn && p->sei > p->mswn )
  391. p->sbi = p->sei - p->mswn + 1;
  392. }
  393. if( p->printFl )
  394. _cmScFolRpt1(p, minDist, ret_idx, d1, missCnt, p->matchCnt );
  395. // don't allow the returned location to repeat or go backwards
  396. if( p->noBackFl && p->ret_idx != cmInvalidIdx && ret_idx <= p->ret_idx )
  397. ret_idx = cmInvalidIdx;
  398. // track the number of consecutive matches
  399. if( ret_idx == cmInvalidIdx )
  400. p->matchCnt = 0;
  401. else
  402. {
  403. ++p->matchCnt;
  404. p->ret_idx = ret_idx;
  405. }
  406. // Force the window to remain valid when it is at the end of the score
  407. // - sbi and sei must be inside 0:locN
  408. // - sei-sbi + 1 must be >= en
  409. if( p->sei >= p->locN )
  410. {
  411. p->sei = p->locN - 1;
  412. p->sbi = p->sei - p->bufN + 1;
  413. }
  414. if( ret_idx != cmInvalidIdx )
  415. ret_idx = p->loc[ret_idx].scIdx;
  416. return ret_idx;
  417. }
  418. //=======================================================================================================================
  419. cmScTrk* cmScTrkAlloc( cmCtx* c, cmScTrk* p, cmReal_t srate, cmScH_t scH, unsigned bufN, unsigned minWndLookAhead, unsigned maxWndCnt, unsigned minVel )
  420. {
  421. cmScTrk* op = cmObjAlloc(cmScTrk,c,p);
  422. op->sfp = cmScFolAlloc(c,NULL,srate,scH,bufN,minWndLookAhead,maxWndCnt,minVel);
  423. if( srate != 0 )
  424. if( cmScTrkInit(op,srate,scH,bufN,minWndLookAhead,maxWndCnt,minVel) != cmOkRC )
  425. cmScTrkFree(&op);
  426. return op;
  427. }
  428. cmRC_t cmScTrkFree( cmScTrk** pp )
  429. {
  430. cmRC_t rc = cmOkRC;
  431. if( pp==NULL || *pp==NULL )
  432. return rc;
  433. cmScTrk* p = *pp;
  434. if((rc = cmScTrkFinal(p)) != cmOkRC )
  435. return rc;
  436. cmScFolFree(&p->sfp);
  437. cmObjFree(pp);
  438. return rc;
  439. }
  440. void _cmScTrkPrint( cmScTrk* p )
  441. {
  442. int i,j;
  443. for(i=0; i<p->locN; ++i)
  444. {
  445. printf("%2i %5i ",p->loc[i].barNumb,p->loc[i].scIdx);
  446. for(j=0; j<p->loc[i].evtCnt; ++j)
  447. printf("%s ",cmMidiToSciPitch(p->loc[i].evtV[j].pitch,NULL,0));
  448. printf("\n");
  449. }
  450. }
  451. cmRC_t cmScTrkInit( cmScTrk* p, cmReal_t srate, cmScH_t scH, unsigned bufN, unsigned minWndLookAhead, unsigned maxWndCnt, unsigned minVel )
  452. {
  453. cmRC_t rc;
  454. if((rc = cmScTrkFinal(p)) != cmOkRC )
  455. return rc;
  456. if( minWndLookAhead > maxWndCnt )
  457. return cmCtxRtCondition( &p->obj, cmInvalidArgRC, "The score follower look-ahead count (%i) must be less than the max. window length (%i).",minWndLookAhead,maxWndCnt);
  458. if((rc = cmScFolInit(p->sfp,srate,scH,bufN,minWndLookAhead,maxWndCnt,minVel)) != cmOkRC )
  459. return rc;
  460. p->srate = srate;
  461. p->scH = scH;
  462. p->locN = cmScoreLocCount(scH);
  463. p->loc = cmMemResizeZ(cmScTrkLoc_t,p->loc,p->locN);
  464. p->minVel = minVel;
  465. p->maxWndCnt = maxWndCnt;
  466. p->minWndLookAhead= 4; //minWndLookAhead;
  467. p->printFl = true;
  468. p->curLocIdx = cmInvalidIdx;
  469. p->evtIndex = 0;
  470. // for each score location
  471. unsigned li;
  472. for(li=0; li<cmScoreLocCount(p->scH); ++li)
  473. {
  474. unsigned i,j,k,n;
  475. const cmScoreLoc_t* lp = cmScoreLoc(p->scH,li);
  476. // count the number of note events at location li
  477. for(n=0,i=0; i<lp->evtCnt; ++i)
  478. if( lp->evtArray[i]->type == kNonEvtScId )
  479. ++n;
  480. p->loc[li].evtCnt = n;
  481. p->loc[li].evtV = cmMemAllocZ(cmScTrkEvt_t,n);
  482. p->loc[li].scIdx = li;
  483. p->loc[li].barNumb = lp->barNumb;
  484. for(j=0,k=0; j<lp->evtCnt; ++j)
  485. if( lp->evtArray[j]->type == kNonEvtScId )
  486. {
  487. p->loc[li].evtV[k].pitch = lp->evtArray[j]->pitch;
  488. p->loc[li].evtV[k].scEvtIdx = lp->evtArray[j]->index;
  489. ++k;
  490. }
  491. }
  492. //_cmScTrkPrint(p);
  493. return rc;
  494. }
  495. cmRC_t cmScTrkFinal( cmScTrk* p )
  496. {
  497. unsigned i;
  498. for(i=0; i<p->locN; ++i)
  499. cmMemPtrFree(&p->loc[i].evtV);
  500. return cmOkRC;
  501. }
  502. cmRC_t cmScTrkReset( cmScTrk* p, unsigned scEvtIdx )
  503. {
  504. unsigned i;
  505. cmScFolReset(p->sfp,scEvtIdx);
  506. p->curLocIdx = cmInvalidIdx;
  507. p->evtIndex = 0;
  508. // locate the score element in svV[] that is closest to,
  509. // and possibly after, scEvtIdx.
  510. for(i=0; i<p->locN; ++i)
  511. {
  512. unsigned j;
  513. for(j=0; j<p->loc[i].evtCnt; ++j)
  514. {
  515. p->loc[i].evtV[j].matchFl = false;
  516. // it is possible that scEvtIdx is before the first event included in p->loc[0]
  517. // using the p->curLocIdx==cmInvalidIdx forces the first evt in p->loc[0] to be
  518. // selected in this case
  519. if( p->loc[i].evtV[j].scEvtIdx <= scEvtIdx || p->curLocIdx==cmInvalidIdx )
  520. p->curLocIdx = i;
  521. }
  522. }
  523. if( p->curLocIdx == cmInvalidIdx )
  524. return cmCtxRtCondition( &p->obj, cmInvalidArgRC, "The initial score search location event %i was not found.", scEvtIdx );
  525. return cmOkRC;
  526. }
  527. unsigned _cmScTrkIsMatch(cmScTrk* p, int d, unsigned pitch )
  528. {
  529. if( 0 <= p->curLocIdx + d && p->curLocIdx+1 < p->locN )
  530. {
  531. unsigned i;
  532. const cmScTrkLoc_t* lp = p->loc + p->curLocIdx + d;
  533. for(i=0; i<lp->evtCnt; ++i)
  534. if( lp->evtV[i].pitch == pitch && lp->evtV[i].matchFl==false)
  535. return i;
  536. }
  537. return cmInvalidIdx;
  538. }
  539. void _cmScTrkRpt0( cmScTrk* p, unsigned pitch, unsigned vel, unsigned nli, unsigned nei )
  540. {
  541. bool missFl = nli==cmInvalidIdx || nei==cmInvalidIdx;
  542. printf("------- event:%i %s vel:%i cur:%i new:%i %s-------\n",p->evtIndex,cmMidiToSciPitch(pitch,NULL,0),vel,p->curLocIdx,nli,missFl?"MISS ":"");
  543. int bi = p->curLocIdx < p->minWndLookAhead ? 0 : p->curLocIdx - p->minWndLookAhead;
  544. int ei = cmMin(p->locN-1,p->curLocIdx+p->minWndLookAhead);
  545. unsigned i,n=0;
  546. for(i=bi; i<=ei; ++i)
  547. if( p->loc[i].evtCnt>n )
  548. n = p->loc[i].evtCnt;
  549. printf("loc ");
  550. for(i=bi; i<=ei; ++i)
  551. printf("%4i ",i);
  552. printf("\n");
  553. for(i=0; i<n; ++i)
  554. {
  555. unsigned j;
  556. printf("sc%2i ",i);
  557. for(j=bi; j<=ei; ++j)
  558. {
  559. if( i < p->loc[j].evtCnt )
  560. {
  561. char* X = p->loc[j].evtV[i].matchFl ? "__" : " ";
  562. if( nli==j && nei==i)
  563. {
  564. X = "**";
  565. assert( p->loc[j].evtV[i].pitch == pitch );
  566. }
  567. printf("%4s%s ",cmMidiToSciPitch(p->loc[j].evtV[i].pitch,NULL,0),X);
  568. }
  569. else
  570. printf(" ");
  571. }
  572. printf("\n");
  573. }
  574. }
  575. unsigned cmScTrkExec( cmScTrk* p, unsigned smpIdx, unsigned status, cmMidiByte_t d0, cmMidiByte_t d1 )
  576. {
  577. unsigned ret_idx = cmInvalidIdx;
  578. //cmScFolExec(p->sfp, smpIdx, status, d0, d1);
  579. if( (status&0xf0) != kNoteOnMdId )
  580. return cmInvalidIdx;
  581. if( p->curLocIdx == cmInvalidIdx )
  582. {
  583. cmCtxRtCondition( &p->obj, cmInvalidArgRC, "An initial score search location has not been set." );
  584. return cmInvalidIdx;
  585. }
  586. int i,nei,nli=cmInvalidIdx;
  587. // try to match curLocIdx first
  588. if((nei = _cmScTrkIsMatch(p,0,d0)) != cmInvalidIdx )
  589. nli = p->curLocIdx;
  590. for(i=1; nei==cmInvalidIdx && i<p->minWndLookAhead; ++i)
  591. {
  592. // go forward
  593. if((nei = _cmScTrkIsMatch(p,i,d0)) != cmInvalidIdx )
  594. nli = p->curLocIdx + i;
  595. else
  596. // go backward
  597. if((nei = _cmScTrkIsMatch(p,-i,d0)) != cmInvalidIdx )
  598. nli = p->curLocIdx - i;
  599. }
  600. if( p->printFl )
  601. {
  602. _cmScTrkRpt0(p, d0, d1, nli, nei );
  603. }
  604. if( nli != cmInvalidIdx )
  605. {
  606. p->loc[nli].evtV[nei].matchFl = true;
  607. ret_idx = p->loc[nli].scIdx;
  608. if( nli > p->curLocIdx )
  609. p->curLocIdx = nli;
  610. }
  611. ++p->evtIndex;
  612. return ret_idx;
  613. }
  614. //=======================================================================================================================
  615. //----------------------------------------------------------------------------------------
  616. void ed_print_mtx( ed_r* r)
  617. {
  618. unsigned i,j,k;
  619. for(i=0; i<r->rn; ++i)
  620. {
  621. for(j=0; j<r->cn; ++j)
  622. {
  623. printf("(");
  624. const ed_val* vp = r->m + i + (j*r->rn);
  625. for(k=0; k<kEdCnt; ++k)
  626. {
  627. printf("%i",vp->v[k]);
  628. if( k<kEdCnt-1)
  629. printf(", ");
  630. else
  631. printf(" ");
  632. }
  633. printf("%c)",vp->transFl?'t':' ');
  634. }
  635. printf("\n");
  636. }
  637. }
  638. void ed_init( ed_r* r, const char* s0, const char* s1 )
  639. {
  640. unsigned i,j,k;
  641. r->rn = strlen(s0)+1;
  642. r->cn = strlen(s1)+1;
  643. r->m = cmMemAllocZ(ed_val, r->rn*r->cn );
  644. r->pn = r->rn + r->cn;
  645. r->p_mem = cmMemAllocZ(ed_path, 2*r->pn );
  646. r->p_avl = r->p_mem;
  647. r->p_cur = NULL;
  648. r->p_opt = r->p_mem + r->pn;
  649. r->s_opt = DBL_MAX;
  650. r->s0 = s0;
  651. r->s1 = s1;
  652. for(i=0; i<r->rn; ++i)
  653. for(j=0; j<r->cn; ++j)
  654. {
  655. unsigned v[] = {0,0,0,0};
  656. if( i == 0 )
  657. {
  658. v[kEdMinIdx] = j;
  659. v[kEdInsIdx] = j;
  660. }
  661. else
  662. if( j == 0 )
  663. {
  664. v[kEdMinIdx] = i;
  665. v[kEdDelIdx] = i;
  666. }
  667. for(k=0; k<kEdCnt; ++k)
  668. r->m[ i + (j*r->rn) ].v[k] = v[k];
  669. }
  670. // put pn path records on the available list
  671. for(i=0; i<r->pn; ++i)
  672. r->p_mem[i].next = i<r->pn-1 ? r->p_mem + i + 1 : NULL;
  673. }
  674. unsigned _ed_min( ed_r* r, unsigned i, unsigned j )
  675. {
  676. assert( i<r->rn && j<r->cn );
  677. return r->m[ i + (j*r->rn) ].v[kEdMinIdx];
  678. }
  679. bool _ed_is_trans( ed_r* r, const ed_val* v1p, unsigned i, unsigned j )
  680. {
  681. bool fl = false;
  682. ed_val* v0p = r->m + i + (j*r->rn);
  683. if( i>=1 && j>=1 &&
  684. v1p->v[kEdMinIdx] == v1p->v[kEdSubIdx]
  685. && v1p->matchFl == false
  686. && v0p->v[kEdMinIdx] == v0p->v[kEdSubIdx]
  687. && v0p->matchFl == false )
  688. {
  689. char c00 = r->s0[i-1];
  690. char c01 = r->s0[i ];
  691. char c10 = r->s1[j-1];
  692. char c11 = r->s1[j ];
  693. fl = c00==c11 && c01==c10;
  694. }
  695. return fl;
  696. }
  697. void ed_calc_mtx( ed_r* r )
  698. {
  699. unsigned i,j;
  700. for(i=1; i<r->rn; ++i)
  701. for(j=1; j<r->cn; ++j)
  702. {
  703. ed_val* vp = r->m + i + (j*r->rn);
  704. vp->matchFl = r->s0[i-1] == r->s1[j-1];
  705. unsigned cost = vp->matchFl ? 0 : 1;
  706. vp->v[kEdSubIdx] = _ed_min(r,i-1,j-1) + cost;
  707. vp->v[kEdDelIdx] = _ed_min(r,i-1,j ) + 1;
  708. vp->v[kEdInsIdx] = _ed_min(r,i, j-1) + 1;
  709. vp->v[kEdMinIdx] = cmMin( vp->v[kEdSubIdx], cmMin(vp->v[kEdDelIdx],vp->v[kEdInsIdx]));
  710. vp->transFl = _ed_is_trans(r,vp,i-1,j-1);
  711. }
  712. }
  713. void ed_path_push( ed_r* r, unsigned code, unsigned ri, unsigned ci, bool matchFl, bool transFl )
  714. {
  715. assert(r->p_avl != NULL );
  716. ed_path* p = r->p_avl;
  717. r->p_avl = r->p_avl->next;
  718. p->code = code;
  719. p->ri = ri;
  720. p->ci = ci;
  721. p->matchFl = matchFl;
  722. p->transFl = transFl;
  723. p->next = r->p_cur;
  724. r->p_cur = p;
  725. }
  726. void ed_path_pop( ed_r* r )
  727. {
  728. assert( r->p_cur != NULL );
  729. ed_path* tp = r->p_cur->next;
  730. r->p_cur->next = r->p_avl;
  731. r->p_avl = r->p_cur;
  732. r->p_cur = tp;
  733. }
  734. double ed_score_candidate( ed_r* r )
  735. {
  736. ed_path* cp = r->p_cur;
  737. ed_path* bp = r->p_cur;
  738. ed_path* ep = NULL;
  739. for(; cp!=NULL; cp=cp->next)
  740. if( cp->code != kEdInsIdx )
  741. {
  742. bp = cp;
  743. break;
  744. }
  745. for(; cp!=NULL; cp=cp->next)
  746. if( cp->code!=kEdInsIdx )
  747. ep = cp;
  748. assert( ep!=NULL && bp!=ep);
  749. unsigned n=1;
  750. for(cp=bp; cp!=ep; cp=cp->next)
  751. ++n;
  752. double gapCnt = 0;
  753. double penalty = 0;
  754. bool pfl = bp->matchFl;
  755. unsigned i;
  756. cp = bp;
  757. for(i=0; i<n; ++i,cp=cp->next)
  758. {
  759. // a gap is a transition from a matching subst. to an insert or deletion
  760. //if( pc != cp->code && cp->code != kEdSubIdx && pc==kEdSubIdx && pfl==true )
  761. if( pfl==true && cp->matchFl==false )
  762. ++gapCnt;
  763. //
  764. switch( cp->code )
  765. {
  766. case kEdSubIdx:
  767. penalty += cp->matchFl ? 0 : 1;
  768. penalty -= cp->transFl ? 1 : 0;
  769. break;
  770. case kEdDelIdx:
  771. penalty += 1;
  772. break;
  773. case kEdInsIdx:
  774. penalty += 1;
  775. break;
  776. }
  777. pfl = cp->matchFl;
  778. }
  779. double score = gapCnt/n + penalty;
  780. printf("n:%i gaps:%f gap_score:%f penalty:%f score:%f\n",n,gapCnt,gapCnt/n,penalty,score);
  781. return score;
  782. }
  783. void ed_eval_candidate( ed_r* r, double score )
  784. {
  785. if( r->s_opt == DBL_MAX || r->s_opt > score)
  786. {
  787. // copy the p_cur to p_opt[]
  788. ed_path* cp = r->p_cur;
  789. unsigned i;
  790. for(i=0; cp!=NULL && i<r->pn; cp=cp->next,++i)
  791. {
  792. r->p_opt[i].code = cp->code;
  793. r->p_opt[i].ri = cp->ri;
  794. r->p_opt[i].ci = cp->ci;
  795. r->p_opt[i].matchFl = cp->matchFl;
  796. r->p_opt[i].transFl = cp->transFl;
  797. }
  798. assert( i < r->pn );
  799. r->p_opt[i].code = 0; // terminate with code=0
  800. r->s_opt = score;
  801. }
  802. }
  803. void ed_print_opt( ed_r* r )
  804. {
  805. unsigned i;
  806. for(i=0; r->p_opt[i].code!=0; ++i)
  807. {
  808. ed_path* cp = r->p_opt + i;
  809. char c0 = cp->matchFl ? 'm' : ' ';
  810. char c1 = cp->transFl ? 't' : ' ';
  811. printf("%2i code:%i ri:%2i ci:%2i %c%c\n",i,cp->code,cp->ri,cp->ci,c0,c1);
  812. }
  813. printf("score:%f\n",r->s_opt);
  814. }
  815. void ed_print_candidate( ed_r* r )
  816. {
  817. ed_path* cp = r->p_cur;
  818. unsigned pn = r->pn;
  819. unsigned i;
  820. char s0[pn+1];
  821. char s1[pn+1];
  822. char s2[pn+1];
  823. char s3[pn+1];
  824. s0[pn] = 0;
  825. s1[pn] = 0;
  826. s2[pn] = 0;
  827. s3[pn] = 0;
  828. for(i=0; i<pn && cp!=NULL; ++i,cp=cp->next)
  829. {
  830. switch(cp->code)
  831. {
  832. case kEdSubIdx: // subst
  833. assert( 0 <= cp->ri && cp->ri <= r->rn );
  834. assert( 0 <= cp->ci && cp->ci <= r->cn );
  835. s0[i] = r->s0[cp->ri];
  836. s1[i] = r->s1[cp->ci];
  837. s2[i] = 's';
  838. s3[i] = cp->matchFl ? 'm' : ' ';
  839. break;
  840. case kEdDelIdx: // delete
  841. assert( 0 <= cp->ri && cp->ri <= r->rn );
  842. s0[i] = r->s0[cp->ri];
  843. s1[i] = ' ';
  844. s2[i] = 'd';
  845. s3[i] = ' ';
  846. break;
  847. case kEdInsIdx: // insert
  848. assert( 0 <= cp->ci && cp->ci <= r->cn );
  849. s0[i] = ' ';
  850. s1[i] = r->s1[cp->ci];
  851. s2[i] = 'i';
  852. s3[i] = ' ';
  853. break;
  854. }
  855. }
  856. if( i < pn )
  857. {
  858. s0[i] = 0;
  859. s1[i] = 0;
  860. s2[i] = 0;
  861. s3[i] = 0;
  862. }
  863. printf("\ns0:%s\n",s0);
  864. printf("s1:%s\n",s1);
  865. printf("s2:%s\n",s2);
  866. printf("s3:%s\n",s3);
  867. }
  868. // traverse the solution matrix from the lower-right to
  869. // the upper-left.
  870. void ed_node( ed_r* r, int i, int j )
  871. {
  872. unsigned m;
  873. // stop when the upper-right is encountered
  874. if( i==0 && j==0 )
  875. {
  876. ed_print_candidate(r);
  877. ed_eval_candidate(r, ed_score_candidate(r) );
  878. return;
  879. }
  880. ed_val* vp = r->m + i + (j*r->rn);
  881. // for each possible dir: up,left,up-left
  882. for(m=1; m<kEdCnt; ++m)
  883. if( vp->v[m] == vp->v[kEdMinIdx] )
  884. {
  885. unsigned ii = i-1;
  886. unsigned jj = j-1;
  887. switch(m)
  888. {
  889. case kEdSubIdx:
  890. break;
  891. case kEdDelIdx:
  892. jj = j;
  893. break;
  894. case kEdInsIdx:
  895. ii = i;
  896. break;
  897. }
  898. // prepend to the current candidate path: r->p_cur
  899. ed_path_push(r,m,ii,jj,vp->matchFl,vp->transFl);
  900. // recurse!
  901. ed_node(r,ii,jj);
  902. // remove the first element from the current path
  903. ed_path_pop(r);
  904. }
  905. }
  906. void ed_align( ed_r* r )
  907. {
  908. int i = r->rn-1;
  909. int j = r->cn-1;
  910. unsigned m = r->m[i + (j*r->rn)].v[kEdMinIdx];
  911. if( m==cmMax(r->rn,r->cn) )
  912. printf("Edit distance is at max: %i. No Match.\n",m);
  913. else
  914. ed_node(r,i,j);
  915. }
  916. void ed_free( ed_r* r )
  917. {
  918. cmMemFree(r->m);
  919. cmMemFree(r->p_mem);
  920. }
  921. void ed_main()
  922. {
  923. const char* s0 = "YHCQPGK";
  924. const char* s1 = "LAHYQQKPGKA";
  925. s0 = "ABCDE";
  926. s1 = "ABDCE";
  927. //s1 = "FGHIJK";
  928. ed_r r;
  929. ed_init(&r,s0,s1);
  930. ed_calc_mtx(&r);
  931. ed_print_mtx(&r);
  932. ed_align(&r);
  933. ed_print_opt(&r);
  934. ed_free(&r);
  935. }
  936. //=======================================================================================================================
  937. cmScMatch* cmScMatchAlloc( cmCtx* c, cmScMatch* p, cmScH_t scH, unsigned maxScWndN, unsigned maxMidiWndN )
  938. {
  939. cmScMatch* op = cmObjAlloc(cmScMatch,c,p);
  940. if( cmScoreIsValid(scH) )
  941. if( cmScMatchInit(op,scH,maxScWndN,maxMidiWndN) != cmOkRC )
  942. cmScMatchFree(&op);
  943. return op;
  944. }
  945. cmRC_t cmScMatchFree( cmScMatch** pp )
  946. {
  947. cmRC_t rc = cmOkRC;
  948. if( pp==NULL || *pp==NULL )
  949. return rc;
  950. cmScMatch* p = *pp;
  951. if((rc = cmScMatchFinal(p)) != cmOkRC )
  952. return rc;
  953. cmMemFree(p->loc);
  954. cmMemFree(p->m);
  955. cmMemFree(p->p_mem);
  956. cmObjFree(pp);
  957. return rc;
  958. }
  959. void _cmScMatchInitLoc( cmScMatch* p )
  960. {
  961. unsigned li,ei;
  962. p->locN = cmScoreEvtCount(p->scH);
  963. p->loc = cmMemResizeZ(cmScMatchLoc_t,p->loc,p->locN);
  964. // for each score location
  965. for(li=0,ei=0; li<cmScoreLocCount(p->scH); ++li)
  966. {
  967. unsigned i,n;
  968. const cmScoreLoc_t* lp = cmScoreLoc(p->scH,li);
  969. // count the number of note events at location li
  970. for(n=0,i=0; i<lp->evtCnt; ++i)
  971. if( lp->evtArray[i]->type == kNonEvtScId )
  972. ++n;
  973. assert( ei+n <= p->locN );
  974. // duplicate each note at location li n times
  975. for(i=0; i<n; ++i)
  976. {
  977. unsigned j,k;
  978. p->loc[ei+i].evtCnt = n;
  979. p->loc[ei+i].evtV = cmMemAllocZ(cmScMatchEvt_t,n);
  980. p->loc[ei+i].scLocIdx = li;
  981. p->loc[ei+i].barNumb = lp->barNumb;
  982. for(j=0,k=0; j<lp->evtCnt; ++j)
  983. if( lp->evtArray[j]->type == kNonEvtScId )
  984. {
  985. p->loc[ei+i].evtV[k].pitch = lp->evtArray[j]->pitch;
  986. p->loc[ei+i].evtV[k].scEvtIdx = lp->evtArray[j]->index;
  987. ++k;
  988. }
  989. }
  990. ei += n;
  991. }
  992. assert(ei<=p->locN);
  993. p->locN = ei;
  994. }
  995. cmRC_t cmScMatchInit( cmScMatch* p, cmScH_t scH, unsigned maxScWndN, unsigned maxMidiWndN )
  996. {
  997. unsigned i;
  998. cmRC_t rc;
  999. if((rc = cmScMatchFinal(p)) != cmOkRC )
  1000. return rc;
  1001. p->scH = scH;
  1002. p->mrn = maxMidiWndN + 1;
  1003. p->mcn = maxScWndN + 1;
  1004. p->mmn = maxMidiWndN;
  1005. p->msn = maxScWndN;
  1006. _cmScMatchInitLoc(p);
  1007. p->m = cmMemResizeZ(cmScMatchVal_t, p->m, p->mrn*p->mcn );
  1008. p->pn = p->mrn + p->mcn;
  1009. p->p_mem = cmMemResizeZ(cmScMatchPath_t, p->p_mem, 2*p->pn );
  1010. p->p_avl = p->p_mem;
  1011. p->p_cur = NULL;
  1012. p->p_opt = p->p_mem + p->pn;
  1013. // put pn path records on the available list
  1014. for(i=0; i<p->pn; ++i)
  1015. {
  1016. p->p_mem[i].next = i<p->pn-1 ? p->p_mem + i + 1 : NULL;
  1017. p->p_opt[i].next = i<p->pn-1 ? p->p_opt + i + 1 : NULL;
  1018. }
  1019. return rc;
  1020. }
  1021. cmRC_t cmScMatchFinal( cmScMatch* p )
  1022. {
  1023. unsigned i;
  1024. if( p != NULL )
  1025. for(i=0; i<p->locN; ++i)
  1026. cmMemPtrFree(&p->loc[i].evtV);
  1027. return cmOkRC;
  1028. }
  1029. cmRC_t _cmScMatchInitMtx( cmScMatch* p, unsigned rn, unsigned cn )
  1030. {
  1031. //if( rn >p->mrn && cn > p->mcn )
  1032. if( rn*cn > p->mrn*p->mcn )
  1033. {
  1034. return cmCtxRtCondition( &p->obj, cmInvalidArgRC, "MIDI sequence length must be less than %i. Score sequence length must be less than %i.",p->mmn,p->msn);
  1035. }
  1036. // if the size of the mtx is not changing then there is nothing to do
  1037. if( rn == p->rn && cn == p->cn )
  1038. return cmOkRC;
  1039. // update the mtx size
  1040. p->rn = rn;
  1041. p->cn = cn;
  1042. // fill in the default values for the first row
  1043. // and column of the DP matrix
  1044. unsigned i,j,k;
  1045. for(i=0; i<rn; ++i)
  1046. for(j=0; j<cn; ++j)
  1047. {
  1048. unsigned v[] = {0,0,0,0};
  1049. if( i == 0 )
  1050. {
  1051. v[kSmMinIdx] = j;
  1052. v[kSmInsIdx] = j;
  1053. }
  1054. else
  1055. if( j == 0 )
  1056. {
  1057. v[kSmMinIdx] = i;
  1058. v[kSmDelIdx] = i;
  1059. }
  1060. // zero the value field
  1061. for(k=0; k<kSmCnt; ++k)
  1062. p->m[ i + (j*rn) ].v[k] = v[k];
  1063. }
  1064. return cmOkRC;
  1065. }
  1066. cmScMatchVal_t* _cmScMatchValPtr( cmScMatch* p, unsigned i, unsigned j, unsigned rn, unsigned cn )
  1067. {
  1068. assert( i < rn && j < cn );
  1069. return p->m + i + (j*rn);
  1070. }
  1071. unsigned _cmScMatchIsMatchIndex( const cmScMatchLoc_t* loc, unsigned pitch )
  1072. {
  1073. unsigned i;
  1074. for(i=0; i<loc->evtCnt; ++i)
  1075. if( loc->evtV[i].pitch == pitch )
  1076. return i;
  1077. return cmInvalidIdx;
  1078. }
  1079. bool _cmScMatchIsMatch( const cmScMatchLoc_t* loc, unsigned pitch )
  1080. { return _cmScMatchIsMatchIndex(loc,pitch) != cmInvalidIdx; }
  1081. bool _cmScMatchIsTrans( cmScMatch* p, const cmScMatchMidi_t* midiV, const cmScMatchVal_t* v1p, unsigned bsi, unsigned i, unsigned j, unsigned rn, unsigned cn )
  1082. {
  1083. bool fl = false;
  1084. cmScMatchVal_t* v0p = _cmScMatchValPtr(p,i,j,rn,cn);
  1085. if( i>=1 && j>=1
  1086. && v1p->v[kSmMinIdx] == v1p->v[kSmSubIdx]
  1087. && cmIsNotFlag(v1p->flags,kSmMatchFl)
  1088. && v0p->v[kSmMinIdx] == v0p->v[kSmSubIdx]
  1089. && cmIsNotFlag(v0p->flags,kSmMatchFl)
  1090. )
  1091. {
  1092. unsigned c00 = midiV[i-1].pitch;
  1093. unsigned c01 = midiV[i ].pitch;
  1094. cmScMatchLoc_t* c10 = p->loc + bsi + j - 1;
  1095. cmScMatchLoc_t* c11 = p->loc + bsi + j;
  1096. fl = _cmScMatchIsMatch(c11,c00) && _cmScMatchIsMatch(c10,c01);
  1097. }
  1098. return fl;
  1099. }
  1100. unsigned _cmScMatchMin( cmScMatch* p, unsigned i, unsigned j, unsigned rn, unsigned cn )
  1101. {
  1102. return _cmScMatchValPtr(p,i,j,rn,cn)->v[kSmMinIdx];
  1103. }
  1104. // Return false if bsi + cn > p->locN
  1105. // pitchV[rn-1]
  1106. bool _cmScMatchCalcMtx( cmScMatch* p, unsigned bsi, const cmScMatchMidi_t* midiV, unsigned rn, unsigned cn )
  1107. {
  1108. // loc[begScanLocIdx:begScanLocIdx+cn-1] must be valid
  1109. if( bsi + cn > p->locN )
  1110. return false;
  1111. unsigned i,j;
  1112. for(j=1; j<cn; ++j)
  1113. for(i=1; i<rn; ++i)
  1114. {
  1115. cmScMatchLoc_t* loc = p->loc + bsi + j - 1;
  1116. unsigned pitch = midiV[i-1].pitch;
  1117. cmScMatchVal_t* vp = _cmScMatchValPtr(p,i,j,rn,cn);
  1118. unsigned idx = _cmScMatchIsMatchIndex(loc,pitch);
  1119. vp->flags = idx==cmInvalidIdx ? 0 : kSmMatchFl;
  1120. vp->scEvtIdx = idx==cmInvalidIdx ? cmInvalidIdx : loc->evtV[idx].scEvtIdx;
  1121. unsigned cost = cmIsFlag(vp->flags,kSmMatchFl) ? 0 : 1;
  1122. vp->v[kSmSubIdx] = _cmScMatchMin(p,i-1,j-1, rn, cn) + cost;
  1123. vp->v[kSmDelIdx] = _cmScMatchMin(p,i-1,j , rn, cn) + 1;
  1124. vp->v[kSmInsIdx] = _cmScMatchMin(p,i, j-1, rn, cn) + 1;
  1125. vp->v[kSmMinIdx] = cmMin( vp->v[kSmSubIdx], cmMin(vp->v[kSmDelIdx],vp->v[kSmInsIdx]));
  1126. vp->flags |= _cmScMatchIsTrans(p,midiV,vp,bsi,i-1,j-1,rn,cn) ? kSmTransFl : 0;
  1127. }
  1128. return true;
  1129. }
  1130. void _cmScMatchPrintMtx( cmScMatch* r, unsigned rn, unsigned cn)
  1131. {
  1132. unsigned i,j,k;
  1133. for(i=0; i<rn; ++i)
  1134. {
  1135. for(j=0; j<cn; ++j)
  1136. {
  1137. printf("(");
  1138. const cmScMatchVal_t* vp = _cmScMatchValPtr(r,i,j,rn,cn);
  1139. for(k=0; k<kSmCnt; ++k)
  1140. {
  1141. printf("%i",vp->v[k]);
  1142. if( k<kSmCnt-1)
  1143. printf(", ");
  1144. else
  1145. printf(" ");
  1146. }
  1147. printf("%c%c)",cmIsFlag(vp->flags,kSmMatchFl)?'m':' ',cmIsFlag(vp->flags,kSmTransFl)?'t':' ');
  1148. }
  1149. printf("\n");
  1150. }
  1151. }
  1152. void _cmScMatchPathPush( cmScMatch* r, unsigned code, unsigned ri, unsigned ci, unsigned flags, unsigned scEvtIdx )
  1153. {
  1154. assert(r->p_avl != NULL );
  1155. cmScMatchPath_t* p = r->p_avl;
  1156. r->p_avl = r->p_avl->next;
  1157. p->code = code;
  1158. p->ri = ri;
  1159. p->ci = ci;
  1160. p->flags = code==kSmSubIdx && cmIsFlag(flags,kSmMatchFl) ? kSmMatchFl : 0;
  1161. p->flags |= cmIsFlag(flags,kSmTransFl) ? kSmTransFl : 0;
  1162. p->scEvtIdx= scEvtIdx;
  1163. p->next = r->p_cur;
  1164. r->p_cur = p;
  1165. }
  1166. void _cmScMatchPathPop( cmScMatch* r )
  1167. {
  1168. assert( r->p_cur != NULL );
  1169. cmScMatchPath_t* tp = r->p_cur->next;
  1170. r->p_cur->next = r->p_avl;
  1171. r->p_avl = r->p_cur;
  1172. r->p_cur = tp;
  1173. }
  1174. double _cmScMatchCalcCandidateCost( cmScMatch* r )
  1175. {
  1176. cmScMatchPath_t* cp = r->p_cur;
  1177. cmScMatchPath_t* bp = r->p_cur;
  1178. cmScMatchPath_t* ep = NULL;
  1179. // skip leading inserts
  1180. for(; cp!=NULL; cp=cp->next)
  1181. if( cp->code != kSmInsIdx )
  1182. {
  1183. bp = cp;
  1184. break;
  1185. }
  1186. // skip to trailing inserts
  1187. for(; cp!=NULL; cp=cp->next)
  1188. if( cp->code!=kSmInsIdx )
  1189. ep = cp;
  1190. // count remaining path length
  1191. assert( ep!=NULL );
  1192. unsigned n=1;
  1193. for(cp=bp; cp!=ep; cp=cp->next)
  1194. ++n;
  1195. double gapCnt = 0;
  1196. double penalty = 0;
  1197. bool pfl = cmIsFlag(bp->flags,kSmMatchFl);
  1198. unsigned i;
  1199. cp = bp;
  1200. for(i=0; i<n; ++i,cp=cp->next)
  1201. {
  1202. // a gap is a transition from a matching subst. to an insert or deletion
  1203. //if( pc != cp->code && cp->code != kSmSubIdx && pc==kSmSubIdx && pfl==true )
  1204. if( pfl==true && cmIsFlag(cp->flags,kSmMatchFl)==false )
  1205. ++gapCnt;
  1206. //
  1207. switch( cp->code )
  1208. {
  1209. case kSmSubIdx:
  1210. penalty += cmIsFlag(cp->flags,kSmMatchFl) ? 0 : 1;
  1211. penalty -= cmIsFlag(cp->flags,kSmTransFl) ? 1 : 0;
  1212. break;
  1213. case kSmDelIdx:
  1214. penalty += 1;
  1215. break;
  1216. case kSmInsIdx:
  1217. penalty += 1;
  1218. break;
  1219. }
  1220. pfl = cmIsFlag(cp->flags,kSmMatchFl);
  1221. }
  1222. double cost = gapCnt/n + penalty;
  1223. //printf("n:%i gaps:%f gap_score:%f penalty:%f score:%f\n",n,gapCnt,gapCnt/n,penalty,score);
  1224. return cost;
  1225. }
  1226. double _cmScMatchEvalCandidate( cmScMatch* r, double min_cost, double cost )
  1227. {
  1228. if( min_cost == DBL_MAX || cost < min_cost)
  1229. {
  1230. // copy the p_cur to p_opt[]
  1231. cmScMatchPath_t* cp = r->p_cur;
  1232. unsigned i;
  1233. for(i=0; cp!=NULL && i<r->pn; cp=cp->next,++i)
  1234. {
  1235. r->p_opt[i].code = cp->code;
  1236. r->p_opt[i].ri = cp->ri;
  1237. r->p_opt[i].ci = cp->ci;
  1238. r->p_opt[i].flags = cp->flags;
  1239. r->p_opt[i].scEvtIdx= cp->scEvtIdx;
  1240. r->p_opt[i].next = cp->next==NULL ? NULL : r->p_opt + i + 1;
  1241. }
  1242. assert( i < r->pn );
  1243. r->p_opt[i].code = 0; // terminate with code=0
  1244. min_cost = cost;
  1245. }
  1246. return min_cost;
  1247. }
  1248. // NOTE: IF THE COST CALCULATION WAS BUILT INTO THE RECURSION THEN
  1249. // THIS FUNCTION COULD BE MADE MORE EFFICIENT BECAUSE PATHS WHICH
  1250. // EXCEEDED THE min_cost COULD BE SHORT CIRCUITED.
  1251. //
  1252. // traverse the solution matrix from the lower-right to
  1253. // the upper-left.
  1254. double _cmScMatchGenPaths( cmScMatch* r, int i, int j, unsigned rn, unsigned cn, double min_cost )
  1255. {
  1256. unsigned m;
  1257. // stop when the upper-right is encountered
  1258. if( i==0 && j==0 )
  1259. return _cmScMatchEvalCandidate(r, min_cost, _cmScMatchCalcCandidateCost(r) );
  1260. cmScMatchVal_t* vp = _cmScMatchValPtr(r,i,j,rn,cn);
  1261. // for each possible dir: up,left,up-left
  1262. for(m=1; m<kSmCnt; ++m)
  1263. if( vp->v[m] == vp->v[kSmMinIdx] )
  1264. {
  1265. // prepend to the current candidate path: r->p_cur
  1266. _cmScMatchPathPush(r,m,i,j,vp->flags,vp->scEvtIdx);
  1267. int ii = i-1;
  1268. int jj = j-1;
  1269. switch(m)
  1270. {
  1271. case kSmSubIdx:
  1272. break;
  1273. case kSmDelIdx:
  1274. jj = j;
  1275. break;
  1276. case kSmInsIdx:
  1277. ii = i;
  1278. break;
  1279. default:
  1280. { assert(0); }
  1281. }
  1282. // recurse!
  1283. min_cost = _cmScMatchGenPaths(r,ii,jj,rn,cn,min_cost);
  1284. // remove the first element from the current path
  1285. _cmScMatchPathPop(r);
  1286. }
  1287. return min_cost;
  1288. }
  1289. double _cmScMatchAlign( cmScMatch* p, unsigned rn, unsigned cn, double min_cost )
  1290. {
  1291. int i = rn-1;
  1292. int j = cn-1;
  1293. unsigned m = _cmScMatchMin(p,i,j,rn,cn);
  1294. if( m==cmMax(rn,cn) )
  1295. printf("Edit distance is at max: %i. No Match.\n",m);
  1296. else
  1297. min_cost = _cmScMatchGenPaths(p,i,j,rn,cn,min_cost);
  1298. return min_cost;
  1299. }
  1300. cmRC_t cmScMatchExec( cmScMatch* p, unsigned locIdx, unsigned locN, const cmScMatchMidi_t* midiV, unsigned midiN, double min_cost )
  1301. {
  1302. cmRC_t rc;
  1303. unsigned rn = midiN + 1;
  1304. unsigned cn = locN + 1;
  1305. // set the DP matrix default values
  1306. if((rc = _cmScMatchInitMtx(p, rn, cn )) != cmOkRC )
  1307. return rc;
  1308. // _cmScMatchCalcMtx() returns false if the score window exceeds the length of the score
  1309. if(!_cmScMatchCalcMtx(p,locIdx, midiV, rn, cn) )
  1310. return cmEofRC;
  1311. //_cmScMatchPrintMtx(p,rn,cn);
  1312. // locate the path through the DP matrix with the lowest edit distance (cost)
  1313. p->opt_cost = _cmScMatchAlign(p, rn, cn, min_cost);
  1314. return rc;
  1315. }
  1316. // Traverse the least cost path and:
  1317. // 1) Return, esi, the score location index of the last MIDI note
  1318. // which has a positive match with the score and assign
  1319. // the internal score index to cp->locIdx.
  1320. //
  1321. // 2) Set cmScAlignPath_t.locIdx - index into p->loc[] associated
  1322. // with each path element that is a 'substitute' or an 'insert'.
  1323. //
  1324. // 3) Set *missCnPtr: the count of trailing non-positive matches.
  1325. //
  1326. // i_opt is index into p->loc[] of p->p_opt.
  1327. unsigned cmScMatchDoSync( cmScMatch* p, unsigned i_opt, cmScMatchMidi_t* midiBuf, unsigned midiN, unsigned* missCntPtr )
  1328. {
  1329. cmScMatchPath_t* cp = p->p_opt;
  1330. unsigned missCnt = 0;
  1331. unsigned esi = cmInvalidIdx;
  1332. unsigned i;
  1333. for(i=0; cp!=NULL; cp=cp->next)
  1334. {
  1335. // there is no MIDI note associated with 'inserts'
  1336. if( cp->code != kSmInsIdx )
  1337. {
  1338. assert( cp->ri > 0 );
  1339. midiBuf[ cp->ri-1 ].locIdx = cmInvalidIdx;
  1340. }
  1341. switch( cp->code )
  1342. {
  1343. case kSmSubIdx:
  1344. midiBuf[ cp->ri-1 ].locIdx = i_opt + i;
  1345. midiBuf[ cp->ri-1 ].scEvtIdx = cp->scEvtIdx;
  1346. if( cmIsFlag(cp->flags,kSmMatchFl) )
  1347. {
  1348. esi = i_opt + i;
  1349. missCnt = 0;
  1350. }
  1351. else
  1352. {
  1353. ++missCnt;
  1354. }
  1355. // fall through
  1356. case kSmInsIdx:
  1357. cp->locIdx = i_opt + i;
  1358. ++i;
  1359. break;
  1360. case kSmDelIdx:
  1361. cp->locIdx = cmInvalidIdx;
  1362. ++missCnt;
  1363. break;
  1364. }
  1365. }
  1366. if( missCntPtr != NULL )
  1367. *missCntPtr = missCnt;
  1368. return esi;
  1369. }
  1370. void _cmScMatchMidiEvtFlags( cmScMatch* p, const cmScMatchLoc_t* lp, unsigned evtIdx, char* s, unsigned sn )
  1371. {
  1372. const cmScoreLoc_t* slp = cmScoreLoc(p->scH,lp->scLocIdx);
  1373. assert( evtIdx < slp->evtCnt );
  1374. const cmScoreEvt_t* ep = slp->evtArray[evtIdx];
  1375. unsigned i = 0;
  1376. s[0] = 0;
  1377. if( cmIsFlag(ep->flags,kEvenScFl) )
  1378. s[i++] = 'e';
  1379. if( cmIsFlag(ep->flags,kTempoScFl) )
  1380. s[i++] = 't';
  1381. if( cmIsFlag(ep->flags,kDynScFl) )
  1382. s[i++] = 'd';
  1383. if( cmIsFlag(ep->flags,kGraceScFl) )
  1384. s[i++] = 'g';
  1385. s[i++] = 0;
  1386. assert( i <= sn );
  1387. }
  1388. void _cmScMatchPrintPath( cmScMatch* p, cmScMatchPath_t* cp, unsigned bsi, const cmScMatchMidi_t* midiV )
  1389. {
  1390. assert( bsi != cmInvalidIdx );
  1391. cmScMatchPath_t* pp = cp;
  1392. int polyN = 0;
  1393. int i;
  1394. printf("loc: ");
  1395. // get the polyphony count for the score window
  1396. for(i=0; pp!=NULL; pp=pp->next)
  1397. {
  1398. cmScMatchLoc_t* lp = p->loc + bsi + pp->ci;
  1399. if( pp->code!=kSmDelIdx )
  1400. {
  1401. if(lp->evtCnt > polyN)
  1402. polyN = lp->evtCnt;
  1403. printf("%4i%4s ",bsi+i," ");
  1404. ++i;
  1405. }
  1406. else
  1407. printf("%4s%4s "," "," ");
  1408. }
  1409. printf("\n");
  1410. // print the score notes
  1411. for(i=polyN; i>0; --i)
  1412. {
  1413. printf("%3i: ",i);
  1414. for(pp=cp; pp!=NULL; pp=pp->next)
  1415. {
  1416. if( pp->code!=kSmDelIdx )
  1417. {
  1418. int locIdx = bsi + pp->ci - 1;
  1419. assert(0 <= locIdx && locIdx <= p->locN);
  1420. cmScMatchLoc_t* lp = p->loc + locIdx;
  1421. if( lp->evtCnt >= i )
  1422. {
  1423. unsigned sn = 6;
  1424. char s[sn];
  1425. _cmScMatchMidiEvtFlags(p,lp,i-1,s,sn );
  1426. printf("%4s%-4s ",cmMidiToSciPitch(lp->evtV[i-1].pitch,NULL,0),s);
  1427. }
  1428. else
  1429. printf("%4s%4s "," "," ");
  1430. }
  1431. else
  1432. printf("%4s%4s ", (pp->code==kSmDelIdx? "-" : " ")," ");
  1433. /*
  1434. int locIdx = bsi + pp->ci - 1;
  1435. assert(0 <= locIdx && locIdx <= p->locN);
  1436. cmScMatchLoc_t* lp = p->loc + locIdx;
  1437. if( pp->code!=kSmDelIdx && lp->evtCnt >= i )
  1438. printf("%4s ",cmMidiToSciPitch(lp->evtV[i-1].pitch,NULL,0));
  1439. else
  1440. printf("%4s ", pp->code==kSmDelIdx? "-" : " ");
  1441. */
  1442. }
  1443. printf("\n");
  1444. }
  1445. printf("mid: ");
  1446. // print the MIDI buffer
  1447. for(pp=cp; pp!=NULL; pp=pp->next)
  1448. {
  1449. if( pp->code!=kSmInsIdx )
  1450. printf("%4s%4s ",cmMidiToSciPitch(midiV[pp->ri-1].pitch,NULL,0)," ");
  1451. else
  1452. printf("%4s%4s ",pp->code==kSmInsIdx?"-":" "," ");
  1453. }
  1454. printf("\nvel: ");
  1455. // print the MIDI velocity
  1456. for(pp=cp; pp!=NULL; pp=pp->next)
  1457. {
  1458. if( pp->code!=kSmInsIdx )
  1459. printf("%4i%4s ",midiV[pp->ri-1].vel," ");
  1460. else
  1461. printf("%4s%4s ",pp->code==kSmInsIdx?"-":" "," ");
  1462. }
  1463. printf("\nmni: ");
  1464. // print the MIDI buffer index (mni)
  1465. for(pp=cp; pp!=NULL; pp=pp->next)
  1466. {
  1467. if( pp->code!=kSmInsIdx )
  1468. printf("%4i%4s ",midiV[pp->ri-1].mni," ");
  1469. else
  1470. printf("%4s%4s ",pp->code==kSmInsIdx?"-":" "," ");
  1471. }
  1472. printf("\n op: ");
  1473. // print the substitute/insert/delete operation
  1474. for(pp=cp; pp!=NULL; pp=pp->next)
  1475. {
  1476. char c = ' ';
  1477. switch( pp->code )
  1478. {
  1479. case kSmSubIdx: c = 's'; break;
  1480. case kSmDelIdx: c = 'd'; break;
  1481. case kSmInsIdx: c = 'i'; break;
  1482. default:
  1483. { assert(0); }
  1484. }
  1485. printf("%4c%4s ",c," ");
  1486. }
  1487. printf("\n ");
  1488. // give substitute attribute (match or transpose)
  1489. for(pp=cp; pp!=NULL; pp=pp->next)
  1490. {
  1491. cmChar_t s[3];
  1492. int k = 0;
  1493. if( cmIsFlag(pp->flags,kSmMatchFl) )
  1494. s[k++] = 'm';
  1495. if( cmIsFlag(pp->flags,kSmTransFl) )
  1496. s[k++] = 't';
  1497. s[k] = 0;
  1498. printf("%4s%4s ",s," ");
  1499. }
  1500. printf("\nscl: ");
  1501. // print the stored location index
  1502. for(pp=cp; pp!=NULL; pp=pp->next)
  1503. {
  1504. if( pp->locIdx == cmInvalidIdx )
  1505. printf("%4s%4s "," "," ");
  1506. else
  1507. printf("%4i%4s ",p->loc[pp->locIdx].scLocIdx," ");
  1508. }
  1509. printf("\nbar: ");
  1510. // print the stored location index
  1511. for(pp=cp; pp!=NULL; pp=pp->next)
  1512. {
  1513. if( pp->locIdx==cmInvalidIdx || pp->scEvtIdx==cmInvalidIdx )
  1514. printf("%4s%4s "," "," ");
  1515. else
  1516. {
  1517. const cmScoreEvt_t* ep = cmScoreEvt(p->scH, pp->scEvtIdx );
  1518. printf("%4i%4s ",ep->barNumb," ");
  1519. }
  1520. }
  1521. printf("\nsec: ");
  1522. // print seconds
  1523. unsigned begSmpIdx = cmInvalidIdx;
  1524. for(pp=cp; pp!=NULL; pp=pp->next)
  1525. {
  1526. if( pp->code!=kSmInsIdx )
  1527. {
  1528. if( begSmpIdx == cmInvalidIdx )
  1529. begSmpIdx = midiV[pp->ri-1].smpIdx;
  1530. printf("%2.2f%4s ", (double)(midiV[pp->ri-1].smpIdx - begSmpIdx)/96000.0," ");
  1531. }
  1532. else
  1533. printf("%4s%4s ",pp->code==kSmInsIdx?"-":" "," ");
  1534. }
  1535. printf("\n\n");
  1536. }
  1537. //=======================================================================================================================
  1538. cmScMatcher* cmScMatcherAlloc( cmCtx* c, cmScMatcher* p, double srate, cmScH_t scH, unsigned scWndN, unsigned midiWndN, cmScMatcherCb_t cbFunc, void* cbArg )
  1539. {
  1540. cmScMatcher* op = cmObjAlloc(cmScMatcher,c,p);
  1541. if( op != NULL )
  1542. op->mp = cmScMatchAlloc(c,NULL,cmScNullHandle,0,0);
  1543. if( srate != 0 )
  1544. {
  1545. if( cmScMatcherInit(op,srate,scH,scWndN,midiWndN,cbFunc,cbArg) != cmOkRC )
  1546. cmScMatcherFree(&op);
  1547. }
  1548. return op;
  1549. }
  1550. cmRC_t cmScMatcherFree( cmScMatcher** pp )
  1551. {
  1552. cmRC_t rc = cmOkRC;
  1553. if( pp==NULL || *pp==NULL )
  1554. return rc;
  1555. cmScMatcher* p = *pp;
  1556. if((rc = cmScMatcherFinal(p)) != cmOkRC )
  1557. return rc;
  1558. cmScMatchFree(&p->mp);
  1559. cmMemFree(p->midiBuf);
  1560. cmMemFree(p->res);
  1561. cmObjFree(pp);
  1562. return rc;
  1563. }
  1564. cmRC_t cmScMatcherInit( cmScMatcher* p, double srate, cmScH_t scH, unsigned scWndN, unsigned midiWndN, cmScMatcherCb_t cbFunc, void* cbArg )
  1565. {
  1566. cmRC_t rc;
  1567. if((rc = cmScMatcherFinal(p)) != cmOkRC )
  1568. return rc;
  1569. if( midiWndN > scWndN )
  1570. return cmCtxRtCondition( &p->obj, cmInvalidArgRC, "The score alignment MIDI event buffer length (%i) must be less than the score window length (%i).",midiWndN,scWndN);
  1571. if(( rc = cmScMatchInit(p->mp,scH,scWndN,midiWndN)) != cmOkRC )
  1572. return rc;
  1573. p->cbFunc = cbFunc;
  1574. p->cbArg = cbArg;
  1575. p->mn = midiWndN;
  1576. p->midiBuf = cmMemResizeZ(cmScMatchMidi_t,p->midiBuf,p->mn);
  1577. p->initHopCnt = 50;
  1578. p->stepCnt = 3;
  1579. p->maxMissCnt = p->stepCnt+1;
  1580. p->rn = 2 * cmScoreEvtCount(scH);
  1581. p->res = cmMemResizeZ(cmScMatcherResult_t,p->res,p->rn);
  1582. p->printFl = false;
  1583. cmScMatcherReset(p,0);
  1584. return rc;
  1585. }
  1586. cmRC_t cmScMatcherFinal( cmScMatcher* p )
  1587. {
  1588. return cmScMatchFinal(p->mp);
  1589. }
  1590. cmRC_t cmScMatcherReset( cmScMatcher* p, unsigned scLocIdx )
  1591. {
  1592. p->mbi = p->mp->mmn;
  1593. p->mni = 0;
  1594. p->begSyncLocIdx = cmInvalidIdx;
  1595. p->s_opt = DBL_MAX;
  1596. p->missCnt = 0;
  1597. p->scanCnt = 0;
  1598. p->ri = 0;
  1599. p->eli = cmInvalidIdx;
  1600. p->ili = 0;
  1601. // convert scLocIdx to an index into p->mp->loc[]
  1602. unsigned i = 0;
  1603. while(1)
  1604. {
  1605. for(i=0; i<p->mp->locN; ++i)
  1606. if( p->mp->loc[i].scLocIdx == scLocIdx )
  1607. {
  1608. p->ili = i;
  1609. break;
  1610. }
  1611. assert(p->mp->locN>0);
  1612. if( i!=p->mp->locN || scLocIdx==p->mp->loc[p->mp->locN-1].scLocIdx)
  1613. break;
  1614. scLocIdx += 1;
  1615. }
  1616. if( i==p->mp->locN)
  1617. return cmCtxRtCondition( &p->obj, cmSubSysFailRC, "Score matcher reset failed.");
  1618. return cmOkRC;
  1619. }
  1620. bool cmScMatcherInputMidi( cmScMatcher* p, unsigned smpIdx, unsigned status, cmMidiByte_t d0, cmMidiByte_t d1 )
  1621. {
  1622. if( (status&0xf0) != kNoteOnMdId)
  1623. return false;
  1624. if( d1 == 0 )
  1625. return false;
  1626. unsigned mi = p->mn-1;
  1627. //printf("%3i %4s\n",p->mni,cmMidiToSciPitch(d0,NULL,0));
  1628. // shift the new MIDI event onto the end of the MIDI buffer
  1629. memmove(p->midiBuf, p->midiBuf+1, sizeof(cmScMatchMidi_t)*mi);
  1630. p->midiBuf[mi].locIdx = cmInvalidIdx;
  1631. p->midiBuf[mi].scEvtIdx = cmInvalidIdx;
  1632. p->midiBuf[mi].mni = p->mni++;
  1633. p->midiBuf[mi].smpIdx = smpIdx;
  1634. p->midiBuf[mi].pitch = d0;
  1635. p->midiBuf[mi].vel = d1;
  1636. if( p->mbi > 0 )
  1637. --p->mbi;
  1638. return true;
  1639. }
  1640. void _cmScMatcherStoreResult( cmScMatcher* p, unsigned locIdx, unsigned scEvtIdx, unsigned flags, const cmScMatchMidi_t* mp )
  1641. {
  1642. // don't store missed score note results
  1643. assert( mp != NULL );
  1644. bool matchFl = cmIsFlag(flags,kSmMatchFl);
  1645. bool tpFl = locIdx!=cmInvalidIdx && matchFl;
  1646. bool fpFl = locIdx==cmInvalidIdx || matchFl==false;
  1647. cmScMatcherResult_t * rp = NULL;
  1648. unsigned i;
  1649. cmScMatcherResult_t r;
  1650. assert( tpFl==false || (tpFl==true && locIdx != cmInvalidIdx ) );
  1651. // it is possible that the same MIDI event is reported more than once
  1652. // (due to step->scan back tracking) - try to find previous result records
  1653. // associated with this MIDI event
  1654. for(i=0; i<p->ri; ++i)
  1655. if( p->res[i].mni == mp->mni )
  1656. {
  1657. // if this is not the first time this note was reported and it is a true positive
  1658. if( tpFl )
  1659. {
  1660. rp = p->res + i;
  1661. break;
  1662. }
  1663. // a match was found but this was not a true-pos so ignore it
  1664. return;
  1665. }
  1666. if( rp == NULL )
  1667. {
  1668. if( p->ri >= p->rn )
  1669. {
  1670. rp = &r;
  1671. memset(rp,0,sizeof(r));
  1672. }
  1673. else
  1674. {
  1675. rp = p->res + p->ri;
  1676. ++p->ri;
  1677. }
  1678. }
  1679. rp->locIdx = locIdx;
  1680. rp->scEvtIdx = scEvtIdx;
  1681. rp->mni = mp->mni;
  1682. rp->smpIdx = mp->smpIdx;
  1683. rp->pitch = mp->pitch;
  1684. rp->vel = mp->vel;
  1685. rp->flags = flags | (tpFl ? kSmTruePosFl : 0) | (fpFl ? kSmFalsePosFl : 0);
  1686. if( p->cbFunc != NULL )
  1687. p->cbFunc(p,p->cbArg,rp);
  1688. }
  1689. void cmScMatcherPrintPath( cmScMatcher* p )
  1690. {
  1691. _cmScMatchPrintPath(p->mp, p->mp->p_opt, p->begSyncLocIdx, p->midiBuf );
  1692. }
  1693. unsigned cmScMatcherScan( cmScMatcher* p, unsigned bli, unsigned hopCnt )
  1694. {
  1695. assert( p->mp != NULL && p->mp->mmn > 0 );
  1696. unsigned i_opt = cmInvalidIdx;
  1697. double s_opt = DBL_MAX;
  1698. cmRC_t rc = cmOkRC;
  1699. unsigned i;
  1700. // initialize the internal values set by this function
  1701. p->missCnt = 0;
  1702. p->eli = cmInvalidIdx;
  1703. p->s_opt = DBL_MAX;
  1704. // if the MIDI buf is not full
  1705. if( p->mbi != 0 )
  1706. return cmInvalidIdx;
  1707. // calc the edit distance from pitchV[] to a sliding score window
  1708. for(i=0; rc==cmOkRC && (hopCnt==cmInvalidCnt || i<hopCnt); ++i)
  1709. {
  1710. rc = cmScMatchExec(p->mp, bli + i, p->mp->msn, p->midiBuf, p->mp->mmn, s_opt );
  1711. switch(rc)
  1712. {
  1713. case cmOkRC: // normal result
  1714. if( p->mp->opt_cost < s_opt )
  1715. {
  1716. s_opt = p->mp->opt_cost;
  1717. i_opt = bli + i;
  1718. }
  1719. break;
  1720. case cmEofRC: // score window encountered the end of the score
  1721. break;
  1722. default: // error state
  1723. return cmInvalidIdx;
  1724. }
  1725. }
  1726. // store the cost assoc'd with i_opt
  1727. p->s_opt = s_opt;
  1728. if( i_opt == cmInvalidIdx )
  1729. return cmInvalidIdx;
  1730. // set the locIdx field in midiBuf[], trailing miss count and
  1731. // return the latest positive-match locIdx
  1732. p->eli = cmScMatchDoSync(p->mp,i_opt,p->midiBuf,p->mp->mmn,&p->missCnt);
  1733. // if no positive matches were found
  1734. if( p->eli == cmInvalidIdx )
  1735. i_opt = cmInvalidIdx;
  1736. else
  1737. {
  1738. cmScMatchPath_t* cp;
  1739. // record result
  1740. for(cp=p->mp->p_opt; cp!=NULL; cp=cp->next)
  1741. if( cp->code != kSmInsIdx )
  1742. _cmScMatcherStoreResult(p, cp->locIdx, cp->scEvtIdx, cp->flags, p->midiBuf + cp->ri - 1);
  1743. }
  1744. return i_opt;
  1745. }
  1746. cmRC_t cmScMatcherStep( cmScMatcher* p )
  1747. {
  1748. int i;
  1749. unsigned pitch = p->midiBuf[ p->mn-1 ].pitch;
  1750. unsigned locIdx = cmInvalidIdx;
  1751. unsigned pidx = cmInvalidIdx;
  1752. // the tracker must be sync'd to step
  1753. if( p->eli == cmInvalidIdx )
  1754. return cmCtxRtCondition( &p->obj, cmInvalidArgRC, "The p->eli value must be valid to perform a step operation.");
  1755. // if the end of the score has been reached
  1756. if( p->eli + 1 >= p->mp->locN )
  1757. return cmEofRC;
  1758. // attempt to match to next location first
  1759. if( (pidx = _cmScMatchIsMatchIndex(p->mp->loc + p->eli + 1, pitch)) != cmInvalidIdx )
  1760. {
  1761. locIdx = p->eli + 1;
  1762. }
  1763. else
  1764. {
  1765. //
  1766. for(i=2; i<p->stepCnt; ++i)
  1767. {
  1768. // go forward
  1769. if( p->eli+i < p->mp->locN && (pidx=_cmScMatchIsMatchIndex(p->mp->loc + p->eli + i, pitch))!=cmInvalidIdx )
  1770. {
  1771. locIdx = p->eli + i;
  1772. break;
  1773. }
  1774. // go backward
  1775. if( p->eli >= (i-1) && (pidx=_cmScMatchIsMatchIndex(p->mp->loc + p->eli - (i-1), pitch))!=cmInvalidIdx )
  1776. {
  1777. locIdx = p->eli - (i-1);
  1778. break;
  1779. }
  1780. }
  1781. }
  1782. unsigned scEvtIdx = locIdx==cmInvalidIdx ? cmInvalidIdx : p->mp->loc[locIdx].evtV[pidx].scEvtIdx;
  1783. p->midiBuf[ p->mn-1 ].locIdx = locIdx;
  1784. p->midiBuf[ p->mn-1 ].scEvtIdx = scEvtIdx;
  1785. if( locIdx == cmInvalidIdx )
  1786. ++p->missCnt;
  1787. else
  1788. {
  1789. p->missCnt = 0;
  1790. p->eli = locIdx;
  1791. }
  1792. // store the result
  1793. _cmScMatcherStoreResult(p, locIdx, scEvtIdx, locIdx!=cmInvalidIdx ? kSmMatchFl : 0, p->midiBuf + p->mn - 1);
  1794. if( p->missCnt >= p->maxMissCnt )
  1795. {
  1796. unsigned begScanLocIdx = p->eli > p->mn ? p->eli - p->mn : 0;
  1797. p->s_opt = DBL_MAX;
  1798. unsigned bli = cmScMatcherScan(p,begScanLocIdx,p->mn*2);
  1799. ++p->scanCnt;
  1800. // if the scan failed find a match
  1801. if( bli == cmInvalidIdx )
  1802. return cmCtxRtCondition( &p->obj, cmSubSysFailRC, "Scan resync. failed.");
  1803. }
  1804. return cmOkRC;
  1805. }
  1806. cmRC_t cmScMatcherExec( cmScMatcher* p, unsigned smpIdx, unsigned status, cmMidiByte_t d0, cmMidiByte_t d1, unsigned* scLocIdxPtr )
  1807. {
  1808. bool fl = p->mbi > 0;
  1809. cmRC_t rc = cmOkRC;
  1810. unsigned org_eli = p->eli;
  1811. if( scLocIdxPtr != NULL )
  1812. *scLocIdxPtr = cmInvalidIdx;
  1813. // update the MIDI buffer with the incoming note
  1814. if( cmScMatcherInputMidi(p,smpIdx,status,d0,d1) == false )
  1815. return rc;
  1816. // if the MIDI buffer transitioned to full then perform an initial scan sync.
  1817. if( fl && p->mbi == 0 )
  1818. {
  1819. if( (p->begSyncLocIdx = cmScMatcherScan(p,p->ili,p->initHopCnt)) == cmInvalidIdx )
  1820. {
  1821. rc = cmInvalidArgRC; // signal init. scan sync. fail
  1822. }
  1823. else
  1824. {
  1825. //cmScMatcherPrintPath(p);
  1826. }
  1827. }
  1828. else
  1829. {
  1830. // if the MIDI buffer is full then perform a step sync.
  1831. if( !fl && p->mbi == 0 )
  1832. rc = cmScMatcherStep(p);
  1833. }
  1834. // if we lost sync
  1835. if( p->eli == cmInvalidIdx )
  1836. {
  1837. // IF WE LOST SYNC THEN WE BETTER DO SOMETHING - LIKE INCREASE THE SCAN HOPS
  1838. // ON THE NEXT EVENT.
  1839. p->eli = org_eli;
  1840. }
  1841. else
  1842. {
  1843. if( scLocIdxPtr!=NULL && p->eli != org_eli )
  1844. {
  1845. //printf("LOC:%i bar:%i\n",p->eli,p->mp->loc[p->eli].barNumb);
  1846. *scLocIdxPtr = p->mp->loc[p->eli].scLocIdx;
  1847. }
  1848. }
  1849. return rc;
  1850. }
  1851. double cmScMatcherFMeas( cmScMatcher* p )
  1852. {
  1853. unsigned bli = p->mp->locN;
  1854. unsigned eli = 0;
  1855. unsigned scNoteCnt = 0; // total count of score notes
  1856. unsigned matchCnt = 0; // count of matched notes (true positives)
  1857. unsigned wrongCnt = 0; // count of incorrect notes (false positives)
  1858. unsigned missCnt = 0; // count of missed score notes (false negatives)
  1859. unsigned i;
  1860. for(i=0; i<p->ri; ++i)
  1861. if( p->res[i].locIdx != cmInvalidIdx )
  1862. {
  1863. bli = cmMin(bli,p->res[i].locIdx);
  1864. eli = cmMax(eli,p->res[i].locIdx);
  1865. if( cmIsFlag(p->res[i].flags,kSmTruePosFl) )
  1866. ++matchCnt;
  1867. if( cmIsFlag(p->res[i].flags,kSmFalsePosFl) )
  1868. ++wrongCnt;
  1869. }
  1870. scNoteCnt = eli - bli + 1;
  1871. missCnt = scNoteCnt - matchCnt;
  1872. double prec = (double)2.0 * matchCnt / (matchCnt + wrongCnt);
  1873. double rcal = (double)2.0 * matchCnt / (matchCnt + missCnt);
  1874. double fmeas = prec * rcal / (prec + rcal);
  1875. //printf("total:%i match:%i wrong:%i miss:%i\n",scNoteCnt,matchCnt,wrongCnt,missCnt);
  1876. return fmeas;
  1877. }
  1878. typedef struct cmScMatcherPrint_str
  1879. {
  1880. unsigned flags;
  1881. unsigned scLocIdx;
  1882. unsigned mni;
  1883. unsigned pitch;
  1884. unsigned vel;
  1885. unsigned barNumb;
  1886. } cmScMatcherPrint_t;
  1887. void _cmScMatcherInsertPrint(cmScMatcherPrint_t* a, unsigned i, unsigned* anp, unsigned aan, const cmScMatcherResult_t* rp, unsigned scLocIdx )
  1888. {
  1889. assert( *anp + 1 <= aan );
  1890. memmove(a + i + 1, a + i, (*anp-i)*sizeof(cmScMatcherPrint_t));
  1891. memset( a + i, 0, sizeof(cmScMatcherPrint_t));
  1892. *anp += 1;
  1893. a[i].flags = rp->flags;
  1894. a[i].scLocIdx = scLocIdx;
  1895. a[i].mni = rp->mni;
  1896. a[i].pitch = rp->pitch;
  1897. a[i].vel = rp->vel;
  1898. }
  1899. void cmScMatcherPrint( cmScMatcher* p )
  1900. {
  1901. unsigned bsli = cmScoreEvtCount(p->mp->scH);
  1902. unsigned esli = 0;
  1903. unsigned i,j,k;
  1904. // get first/last scLocIdx from res[]
  1905. for(i=0; i<p->ri; ++i)
  1906. if( p->res[i].locIdx != cmInvalidIdx )
  1907. {
  1908. bsli = cmMin(bsli,p->mp->loc[p->res[i].locIdx].scLocIdx);
  1909. esli = cmMax(esli,p->mp->loc[p->res[i].locIdx].scLocIdx);
  1910. }
  1911. unsigned an = 0;
  1912. unsigned aan = p->ri;
  1913. // calc the count of score events between bsli and esli.
  1914. for(i=bsli; i<=esli; ++i)
  1915. {
  1916. cmScoreLoc_t* lp = cmScoreLoc(p->mp->scH, i);
  1917. assert(lp != NULL);
  1918. aan += lp->evtCnt;
  1919. }
  1920. // allocate an array off 'aan' print records
  1921. cmScMatcherPrint_t* a = cmMemAllocZ(cmScMatcherPrint_t,aan);
  1922. // fill a[] note and bar events from cmScoreLoc()
  1923. for(i=bsli; i<=esli; ++i)
  1924. {
  1925. unsigned scLocIdx = i;
  1926. cmScoreLoc_t* lp = cmScoreLoc(p->mp->scH, scLocIdx );
  1927. for(j=0; j<lp->evtCnt; ++j)
  1928. {
  1929. assert( an < aan );
  1930. cmScoreEvt_t* ep = lp->evtArray[j];
  1931. cmScMatcherPrint_t* pp = a + an;
  1932. an += 1;
  1933. switch( ep->type )
  1934. {
  1935. case kBarEvtScId:
  1936. pp->flags = kSmBarFl;
  1937. break;
  1938. case kNonEvtScId:
  1939. pp->flags = kSmNoteFl;
  1940. break;
  1941. }
  1942. pp->scLocIdx = scLocIdx;
  1943. pp->mni = cmInvalidIdx;
  1944. pp->pitch = ep->pitch;
  1945. pp->vel = kInvalidMidiVelocity;
  1946. pp->barNumb = ep->barNumb;
  1947. }
  1948. }
  1949. // for each result record
  1950. for(i=0; i<p->ri; ++i)
  1951. {
  1952. cmScMatcherResult_t* rp = p->res + i;
  1953. // if this result recd matched a score event
  1954. if( cmIsFlag(rp->flags,kSmTruePosFl) )
  1955. {
  1956. // locate the matching score event
  1957. for(k=0; k<an; ++k)
  1958. if( a[k].scLocIdx==p->mp->loc[rp->locIdx].scLocIdx && a[k].pitch==rp->pitch )
  1959. {
  1960. a[k].mni = rp->mni;
  1961. a[k].vel = rp->vel;
  1962. a[k].flags |= kSmMatchFl;
  1963. break;
  1964. }
  1965. }
  1966. // if this result did not match a score event
  1967. if( cmIsFlag(rp->flags,kSmFalsePosFl) )
  1968. {
  1969. unsigned d_min = 0;
  1970. cmScMatcherPrint_t* dp = NULL;
  1971. unsigned scLocIdx = cmInvalidIdx;
  1972. // if this result does not have a valid locIdx
  1973. // (e.g. errant MIDI notes: scan:'delete' note or a step:mis-match note)
  1974. if( rp->locIdx == cmInvalidIdx )
  1975. {
  1976. // find the print recd with the closet 'mni'
  1977. for(k=0; k<an; ++k)
  1978. if( a[k].mni != cmInvalidIdx )
  1979. {
  1980. unsigned d;
  1981. if( a[k].mni > rp->mni )
  1982. d = a[k].mni - rp->mni;
  1983. else
  1984. d = rp->mni - a[k].mni;
  1985. if( dp==NULL || d < d_min )
  1986. {
  1987. dp = a + k;
  1988. d_min = d;
  1989. }
  1990. }
  1991. k = dp - a;
  1992. assert( k < an );
  1993. scLocIdx = p->mp->loc[k].scLocIdx;
  1994. if( a[k].mni < rp->mni )
  1995. ++k;
  1996. }
  1997. else // result w/ a valid locIdx (e.g. scan 'substitute' with no match)
  1998. {
  1999. scLocIdx = p->mp->loc[rp->locIdx].scLocIdx;
  2000. // find the print recd with the closest scIdx
  2001. for(k=0; k<an; ++k)
  2002. if( a[k].scLocIdx != cmInvalidIdx )
  2003. {
  2004. unsigned d;
  2005. if( a[k].scLocIdx > scLocIdx )
  2006. d = a[k].scLocIdx - scLocIdx;
  2007. else
  2008. d = scLocIdx - a[k].scLocIdx;
  2009. if( dp==NULL || d < d_min )
  2010. {
  2011. dp = a + k;
  2012. d_min = d;
  2013. }
  2014. }
  2015. k = dp - a;
  2016. assert( k < an );
  2017. if( a[k].scLocIdx < scLocIdx )
  2018. ++k;
  2019. }
  2020. // create a new print recd to represent the false-positive result recd
  2021. assert( dp != NULL );
  2022. _cmScMatcherInsertPrint(a, k, &an,aan,rp,scLocIdx);
  2023. }
  2024. }
  2025. for(i=0; i<an; ++i)
  2026. {
  2027. printf("%4i %4i %4i %4s %c%c%c\n",a[i].scLocIdx,a[i].barNumb,a[i].mni,
  2028. cmIsFlag(a[i].flags,kSmBarFl) ? "|" : cmMidiToSciPitch(a[i].pitch,NULL,0),
  2029. cmIsFlag(a[i].flags,kSmNoteFl) ? 'n' : ' ',
  2030. cmIsFlag(a[i].flags,kSmMatchFl) ? 'm' : (cmIsFlag(a[i].flags,kSmTransFl) ? 't' : ' '),
  2031. cmIsFlag(a[i].flags,kSmFalsePosFl) ? '*' : ' '
  2032. );
  2033. }
  2034. cmMemFree(a);
  2035. }
  2036. //=======================================================================================================================
  2037. cmScMeas* cmScMeasAlloc( cmCtx* c, cmScMeas* p, cmScH_t scH, double srate, const unsigned* dynRefArray, unsigned dynRefCnt )
  2038. {
  2039. cmScMeas* op = cmObjAlloc(cmScMeas,c,p);
  2040. op->mp = cmScMatchAlloc( c, NULL, cmScNullHandle, 0, 0 );
  2041. if( cmScoreIsValid(scH) )
  2042. if( cmScMeasInit(op,scH,srate,dynRefArray,dynRefCnt) != cmOkRC )
  2043. cmScMeasFree(&op);
  2044. return op;
  2045. }
  2046. cmRC_t cmScMeasFree( cmScMeas** pp )
  2047. {
  2048. cmRC_t rc = cmOkRC;
  2049. if( pp==NULL || *pp==NULL )
  2050. return rc;
  2051. cmScMeas* p = *pp;
  2052. if((rc = cmScMeasFinal(p)) != cmOkRC )
  2053. return rc;
  2054. cmScMatchFree(&p->mp);
  2055. cmMemFree(p->midiBuf);
  2056. cmMemFree(p->set);
  2057. cmMemFree(p->dynRef);
  2058. cmObjFree(pp);
  2059. return rc;
  2060. }
  2061. void _cmScMeasPrint( cmScMeas* p )
  2062. {
  2063. unsigned i;
  2064. for(i=0; i<p->sn; ++i)
  2065. {
  2066. cmScMeasSet_t* sp = p->set + i;
  2067. printf("%4i: sli:%4i %4i li:%4i %4i\n", i, sp->bsli, sp->esli, sp->bli, sp->eli );
  2068. }
  2069. }
  2070. int _cmScMeasSortFunc( const void* p0, const void* p1 )
  2071. {
  2072. const cmScMeasSet_t* s0 = (const cmScMeasSet_t*)p0;
  2073. const cmScMeasSet_t* s1 = (const cmScMeasSet_t*)p1;
  2074. return s0->esli - s1->esli;
  2075. }
  2076. cmRC_t cmScMeasInit( cmScMeas* p, cmScH_t scH, double srate, const unsigned* dynRefArray, unsigned dynRefCnt )
  2077. {
  2078. cmRC_t rc;
  2079. unsigned i,j;
  2080. unsigned si;
  2081. unsigned maxScWndN = 0;
  2082. if((rc = cmScMeasFinal(p)) != cmOkRC )
  2083. return rc;
  2084. p->mii = 0;
  2085. p->mn = 2 * cmScoreEvtCount(scH);
  2086. p->midiBuf = cmMemResizeZ(cmScMatchMidi_t,p->midiBuf,p->mn);
  2087. p->sn = cmScoreSetCount(scH);
  2088. p->set = cmMemResizeZ(cmScMeasSet_t,p->set,p->sn);
  2089. p->dynRef = cmMemResizeZ(unsigned,p->dynRef,dynRefCnt);
  2090. p->dn = dynRefCnt;
  2091. p->srate = srate;
  2092. memcpy(p->dynRef,dynRefArray,sizeof(dynRefArray[0])*dynRefCnt);
  2093. unsigned n = cmScoreLocCount(scH);
  2094. // for each score location
  2095. for(i=0,si=0; i<n; ++i)
  2096. {
  2097. cmScoreLoc_t* lp = cmScoreLoc(scH,i);
  2098. cmScoreSet_t* sp = lp->setList;
  2099. // for each set that ends on this score location
  2100. for(; sp!=NULL; sp=sp->llink,++si)
  2101. {
  2102. assert(si < p->sn);
  2103. cmScMeasSet_t* msp = p->set + si;
  2104. msp->sp = sp;
  2105. msp->bsli = cmScoreLocCount(scH);
  2106. msp->esli = 0;
  2107. msp->bsei = cmScoreEvtCount(scH);
  2108. msp->esei = 0;
  2109. msp->bli = cmInvalidIdx;
  2110. msp->eli = cmInvalidIdx;
  2111. for(j=0; j<sp->eleCnt; ++j)
  2112. {
  2113. msp->bsli = cmMin(msp->bsli,sp->eleArray[j]->locIdx);
  2114. msp->esli = cmMax(msp->esli,sp->eleArray[j]->locIdx);
  2115. msp->bsei = cmMin(msp->bsei,sp->eleArray[j]->index);
  2116. msp->esei = cmMax(msp->esei,sp->eleArray[j]->index);
  2117. }
  2118. }
  2119. }
  2120. // initialize p->mp so that mp->loc[] is loaded - use dummy scWndN and midiN
  2121. if((rc = cmScMatchInit(p->mp, scH, 11, 10 )) != cmOkRC )
  2122. return rc;
  2123. // assign set[].bli and set[].eli
  2124. for(j=0; j<p->sn; ++j)
  2125. {
  2126. cmScMeasSet_t* msp = p->set + j;
  2127. for(i=0; i<p->mp->locN; ++i)
  2128. {
  2129. if( msp->bli==cmInvalidIdx && msp->bsli==p->mp->loc[i].scLocIdx )
  2130. msp->bli = i;
  2131. if( msp->esli==p->mp->loc[i].scLocIdx )
  2132. msp->eli = i;
  2133. }
  2134. assert( msp->eli > msp->bli );
  2135. maxScWndN = cmMax( maxScWndN, msp->eli - msp->bli + 1 );
  2136. }
  2137. // setup the match
  2138. if((rc = cmScMatchInit(p->mp, scH, 2*maxScWndN+1, 2*maxScWndN )) != cmOkRC )
  2139. return rc;
  2140. // sort set[] on cmScMeasSet_t.esli
  2141. qsort(p->set, p->sn, sizeof(cmScMeasSet_t), _cmScMeasSortFunc );
  2142. //_cmScMeasPrint(p);
  2143. cmScMeasReset(p);
  2144. return rc;
  2145. }
  2146. cmRC_t cmScMeasFinal( cmScMeas* p )
  2147. { return cmScMatchFinal(p->mp); }
  2148. cmRC_t cmScMeasReset( cmScMeas* p )
  2149. {
  2150. cmRC_t rc = cmOkRC;
  2151. p->mii = 0;
  2152. p->nsi = cmInvalidIdx;
  2153. p->vsi = cmInvalidIdx;
  2154. p->nsli = cmInvalidIdx;
  2155. unsigned i;
  2156. for(i=0; i<p->sn; ++i)
  2157. {
  2158. p->set[i].value = DBL_MAX;
  2159. p->set[i].tempo = 0;
  2160. p->set[i].match_cost = 0;
  2161. }
  2162. return rc;
  2163. }
  2164. typedef struct
  2165. {
  2166. unsigned scLocIdx; // score loc index
  2167. double frac; // score based fraction of beat
  2168. unsigned smpIdx; // time of assoc'd MIDI event
  2169. unsigned cnt; //
  2170. double val; //
  2171. } _cmScMeasTimeEle_t;
  2172. typedef struct
  2173. {
  2174. unsigned setN; // set length
  2175. unsigned midiN; // count of MIDI events to match to score
  2176. unsigned alignN; // count of score events in the alignment (<= setN)
  2177. unsigned matchN; // count of positive matches
  2178. double tempo;
  2179. double value;
  2180. } _cmScMeasResult_t;
  2181. double _cmScMeasCalcTempo( const _cmScMeasTimeEle_t* b, unsigned bn, double srate )
  2182. {
  2183. assert( bn >= 2 );
  2184. assert( b[bn-1].smpIdx != cmInvalidIdx );
  2185. assert( b[0].smpIdx != cmInvalidIdx );
  2186. double durSmpCnt = b[bn-1].smpIdx - b[0].smpIdx;
  2187. double beats = 0;
  2188. unsigned i;
  2189. for(i=0; i<bn; ++i)
  2190. beats += b[i].frac;
  2191. assert(beats != 0);
  2192. return beats / (durSmpCnt / (srate * 60.0));
  2193. }
  2194. // Note: On successful completion (return!=0) the first
  2195. // and last record returned in c[cn] will be matched records.
  2196. unsigned _cmScMeasTimeAlign( cmScMeas* p, cmScMeasSet_t* sp, cmScMatchMidi_t* m, unsigned mn, _cmScMeasTimeEle_t* c, unsigned cn, _cmScMeasResult_t* rp )
  2197. {
  2198. int i,j,k;
  2199. int an = sp->sp->eleCnt;
  2200. _cmScMeasTimeEle_t* b = NULL;
  2201. int bn = 0;
  2202. bool tempoFl = false;
  2203. unsigned matchN = 0;
  2204. assert( an!=0);
  2205. // alloc a 'score set' element array
  2206. _cmScMeasTimeEle_t a[an];
  2207. // get the scLocIdx of each set element from the score
  2208. for(i=0,j=0; i<an; ++i)
  2209. if( i==0 || sp->sp->eleArray[i-1]->locIdx != sp->sp->eleArray[i]->locIdx )
  2210. {
  2211. assert( sp->sp->eleArray[i]->locIdx != cmInvalidIdx );
  2212. a[j].scLocIdx = sp->sp->eleArray[i]->locIdx;
  2213. a[j].frac = sp->sp->eleArray[i]->frac;
  2214. a[j].smpIdx = cmInvalidIdx;
  2215. a[j].cnt = 0;
  2216. ++j;
  2217. }
  2218. an = j; // set the count of unique score locations (new length of a[])
  2219. // collect the 'smpIdx' for each MIDI event which matches a set element
  2220. for(i=0; i<mn; ++i)
  2221. if( m[i].locIdx != cmInvalidIdx )
  2222. {
  2223. for(j=0; j<an; ++j)
  2224. if( p->mp->loc[m[i].locIdx].scLocIdx == a[j].scLocIdx )
  2225. {
  2226. a[j].smpIdx += m[i].smpIdx;
  2227. a[j].cnt += 1;
  2228. if( a[j].cnt == 1 )
  2229. matchN += 1; // only cnt one match per sc loc.
  2230. break;
  2231. }
  2232. }
  2233. // remove leading missing values
  2234. for(i=0; i<an; ++i)
  2235. if( a[i].smpIdx != cmInvalidIdx )
  2236. {
  2237. b = a + i;
  2238. bn = an - i;
  2239. break;
  2240. }
  2241. // remove trailing missing values
  2242. for(i=bn-1; i>=0; --i,--bn)
  2243. if( b[i].smpIdx != cmInvalidIdx )
  2244. break;
  2245. // can't measure evenness against less than 2 values
  2246. if( bn < 2 )
  2247. {
  2248. return 0;
  2249. }
  2250. assert(b[0].smpIdx != cmInvalidIdx && b[bn-1].smpIdx != cmInvalidIdx);
  2251. // calc avg. smpIdx, insert missing values, and convert b[].smpIdx to delta smp index
  2252. for(i=0,j=0; i<bn; ++i)
  2253. {
  2254. if( b[i].cnt > 1 )
  2255. b[i].smpIdx /= b[i].cnt;
  2256. if( b[i].smpIdx == cmInvalidIdx )
  2257. ++j; // incr missing value count
  2258. else
  2259. {
  2260. if( i > 0 )
  2261. {
  2262. // fill in missing values
  2263. ++j;
  2264. unsigned d = (b[i].smpIdx - b[i-j].smpIdx)/j;
  2265. for(k=0; k<j; ++k)
  2266. b[i-j+k].val = d;
  2267. }
  2268. j=0;
  2269. }
  2270. if( b[i].frac != 0 )
  2271. tempoFl = true;
  2272. }
  2273. rp->setN = an;
  2274. rp->midiN = mn;
  2275. rp->alignN = bn;
  2276. rp->matchN = matchN;
  2277. rp->tempo = 0;
  2278. rp->value = 0;
  2279. // calculate tempo
  2280. if( tempoFl )
  2281. rp->tempo = _cmScMeasCalcTempo(b,bn,p->srate);
  2282. assert(bn<=cn);
  2283. // TODO: this copy should be eliminated
  2284. // copy to output
  2285. for(i=0; i<bn && i<cn; ++i)
  2286. c[i] = b[i];
  2287. return bn;
  2288. }
  2289. double _cmScMeasEven( cmScMeas* p, cmScMeasSet_t* sp, cmScMatchMidi_t* m, unsigned mn, _cmScMeasResult_t* rp )
  2290. {
  2291. unsigned bn = sp->sp->eleCnt;
  2292. _cmScMeasTimeEle_t b[bn];
  2293. unsigned i;
  2294. if((bn = _cmScMeasTimeAlign(p,sp,m,mn,b,bn,rp)) == 0 )
  2295. return DBL_MAX;
  2296. // calc avg. delta time
  2297. double d_avg = 0;
  2298. for(i=0; i<bn-1; ++i)
  2299. d_avg += b[i].val;
  2300. d_avg /= (bn-1);
  2301. // calc std-dev of delta time
  2302. double d_sd = 0;
  2303. for(i=0; i<bn-1; ++i)
  2304. d_sd += (b[i].val-d_avg) * (b[i].val-d_avg);
  2305. // if there is no deviation then we can't compute a z-score
  2306. // (this will happen if we fill in all the missing values based on 2 values)
  2307. if( d_sd == 0 )
  2308. return 1.0;
  2309. d_sd = sqrt(d_sd/(bn-1));
  2310. // calc avg. z-score
  2311. double z = 0;
  2312. for(i=0; i<bn-1; ++i)
  2313. z += fabs(b[i].val - d_avg)/d_sd;
  2314. double val = z / (bn-1);
  2315. rp->value = val;
  2316. return val;
  2317. }
  2318. // return Tempo estimation in BPM
  2319. double _cmScMeasTempo( cmScMeas* p, cmScMeasSet_t* sp, cmScMatchMidi_t* m, unsigned mn, _cmScMeasResult_t* rp )
  2320. {
  2321. unsigned bn = sp->sp->eleCnt;
  2322. _cmScMeasTimeEle_t b[bn];
  2323. if((bn= _cmScMeasTimeAlign(p,sp,m,mn,b,bn,rp)) == 0 )
  2324. return DBL_MAX;
  2325. return rp->tempo;
  2326. }
  2327. double _cmScMeasDyn( cmScMeas* p, cmScMeasSet_t* sp, cmScMatchMidi_t* m, unsigned mn, _cmScMeasResult_t* rp )
  2328. {
  2329. typedef struct
  2330. {
  2331. unsigned scEvtIdx;
  2332. unsigned vel;
  2333. double val;
  2334. } ele_t;
  2335. int i,j;
  2336. int n = sp->sp->eleCnt;
  2337. double vv = 0;
  2338. unsigned vn = 0;
  2339. unsigned matchN = 0;
  2340. unsigned alignN = 0;
  2341. assert( n!=0);
  2342. ele_t a[n];
  2343. // get the scEvtIdx of each set element
  2344. for(i=0; i<n; ++i)
  2345. {
  2346. cmScoreEvt_t* ep = cmScoreEvt( p->mp->scH, sp->sp->eleArray[i]->index );
  2347. assert( ep != NULL );
  2348. a[i].scEvtIdx = sp->sp->eleArray[i]->index;
  2349. a[i].vel = 0;
  2350. a[i].val = ep->dynVal;
  2351. }
  2352. // set the performed vel. of each note in the set
  2353. // (if a note was not played it's a[].vel is left at 0)
  2354. for(i=0; i<mn; ++i)
  2355. if( m[i].scEvtIdx != cmInvalidIdx )
  2356. {
  2357. alignN += 1;
  2358. for(j=0; j<n; ++j)
  2359. if( m[i].scEvtIdx == a[j].scEvtIdx )
  2360. {
  2361. matchN += 1;
  2362. a[j].vel = m[i].vel;
  2363. break;
  2364. }
  2365. }
  2366. // assign a dynamics category to each note in the set
  2367. for(i=0; i<n; ++i)
  2368. if( a[i].vel > 0 )
  2369. {
  2370. unsigned mnv = 0; // lower bound for first dyn's category
  2371. for(j=0; j<p->dn; ++j)
  2372. {
  2373. if( mnv <= a[i].vel && a[i].vel < p->dynRef[j] )
  2374. {
  2375. // accum. the diff. between the ref. and performed dyn. category
  2376. vv += fabs(a[i].val - j);
  2377. vn += 1;
  2378. break;
  2379. }
  2380. mnv = p->dynRef[j];
  2381. }
  2382. assert(j<p->dn);
  2383. }
  2384. rp->setN = n;
  2385. rp->midiN = mn;
  2386. rp->alignN = alignN;
  2387. rp->matchN = matchN;
  2388. rp->tempo = 0;
  2389. rp->value = vn == 0 ? DBL_MAX : vv/vn;
  2390. return rp->value;
  2391. }
  2392. unsigned MEAS_MATCH_CNT = 0;
  2393. void _cmScMeasPrintResult( cmScMeas* p, cmScMeasSet_t* sp, _cmScMeasResult_t* rp, unsigned bli, const cmScMatchMidi_t* mb )
  2394. {
  2395. const char* label = "<none>";
  2396. switch( sp->sp->varId )
  2397. {
  2398. case kEvenVarScId:
  2399. label = "even";
  2400. break;
  2401. case kDynVarScId:
  2402. label = "dyn";
  2403. break;
  2404. case kTempoVarScId:
  2405. label = "tempo";
  2406. break;
  2407. }
  2408. const cmChar_t* msg = "";
  2409. if( rp->value == DBL_MAX )
  2410. {
  2411. msg = "Measure FAILED.";
  2412. sp->value = 0;
  2413. }
  2414. printf("%i set:%i %s bsli:%i esli:%i [set:%i match:%i] cost:%f val:%f %s",MEAS_MATCH_CNT, p->nsi, label, sp->bsli, sp->esli, rp->setN, rp->matchN, p->mp->opt_cost, sp->value, msg);
  2415. if( rp->tempo != 0 )
  2416. printf(" tempo:%f ",rp->tempo);
  2417. printf("\n");
  2418. _cmScMatchPrintPath(p->mp, p->mp->p_opt, bli, mb );
  2419. }
  2420. void _cmScMeasCalcVal( cmScMeas* p, cmScMeasSet_t* sp, int n_mii )
  2421. {
  2422. unsigned mn = 0;
  2423. int i,k = cmInvalidIdx;
  2424. if( n_mii == 0 )
  2425. return;
  2426. // Determine the count of MIDI notes to match to the set score
  2427. // by searching from the MIDI note just recieved (midiBuf[n_mii]
  2428. // back toward the beginning until a MIDI event which occurs just
  2429. // prior to the set's begScLocIdx.
  2430. for(i=n_mii; i>=0; --i)
  2431. {
  2432. if( p->midiBuf[i].locIdx != cmInvalidIdx )
  2433. {
  2434. k = i;
  2435. unsigned scLocIdx = p->mp->loc[ p->midiBuf[i].locIdx ].scLocIdx;
  2436. if( scLocIdx < sp->bsli )
  2437. break;
  2438. }
  2439. }
  2440. assert(k != cmInvalidIdx);
  2441. mn = n_mii - k + 1;
  2442. i = k;
  2443. assert(i>=0);
  2444. assert(mn>0);
  2445. // Create a copy of the the MIDI buffer to prevent the
  2446. // p->midiBuf[].locIdx from being overwritten by cmScMatchDoSync().
  2447. cmScMatchMidi_t mb[ mn ];
  2448. unsigned j;
  2449. for(j=0; j<mn; ++j)
  2450. {
  2451. mb[j] = p->midiBuf[i+j];
  2452. mb[j].locIdx = cmInvalidIdx;
  2453. }
  2454. // In general the first and last MIDI event should be assigned
  2455. // to a score location - it's possible however that no MIDI
  2456. // event's prior to the one at p->midiBuf[n_mii] were assigned.
  2457. assert( (i==0 || p->midiBuf[i].locIdx!=cmInvalidIdx) && p->midiBuf[i+mn-1].locIdx != cmInvalidIdx);
  2458. unsigned l0i = cmMin(p->midiBuf[i].locIdx,p->midiBuf[i+mn-1].locIdx);
  2459. unsigned l1i = cmMax(p->midiBuf[i].locIdx,p->midiBuf[i+mn-1].locIdx);
  2460. unsigned bli = l0i;
  2461. unsigned ln = l1i - bli + 1;
  2462. double min_cost = DBL_MAX;
  2463. _cmScMeasResult_t r;
  2464. memset(&r,0,sizeof(r));
  2465. // match MIDI to score
  2466. if( cmScMatchExec(p->mp, bli, ln, mb, mn, min_cost ) != cmOkRC )
  2467. return;
  2468. // sync the score and MIDI based on the match information
  2469. if( cmScMatchDoSync(p->mp, bli, mb, mn, NULL ) == cmInvalidIdx )
  2470. return;
  2471. if( p->mp->opt_cost != DBL_MAX )
  2472. sp->match_cost = p->mp->opt_cost / sp->sp->eleCnt;
  2473. switch( sp->sp->varId )
  2474. {
  2475. case kEvenVarScId:
  2476. sp->value = _cmScMeasEven(p, sp, mb, mn, &r );
  2477. break;
  2478. case kDynVarScId:
  2479. sp->value = _cmScMeasDyn(p, sp, mb, mn, &r );
  2480. break;
  2481. case kTempoVarScId:
  2482. sp->value = _cmScMeasTempo(p, sp, mb, mn, &r );
  2483. break;
  2484. default:
  2485. { assert(0); }
  2486. }
  2487. sp->tempo = r.tempo;
  2488. // print the result
  2489. //_cmScMeasPrintResult(p, sp, &r, bli, mb );
  2490. MEAS_MATCH_CNT++;
  2491. }
  2492. cmRC_t cmScMeasExec( cmScMeas* p, unsigned mni, unsigned locIdx, unsigned scEvtIdx, unsigned flags, unsigned smpIdx, unsigned pitch, unsigned vel )
  2493. {
  2494. cmRC_t rc = cmOkRC;
  2495. // if the midi buffer is full
  2496. if( p->mii >= p->mn )
  2497. return cmCtxRtCondition( &p->obj, cmEofRC, "The MIDI buffer is full.");
  2498. int n_mii = cmInvalidIdx;
  2499. // locate the MIDI event assoc'd with 'mni' ...
  2500. if( p->mii>0 && mni <= p->midiBuf[p->mii-1].mni )
  2501. {
  2502. if( locIdx != cmInvalidIdx )
  2503. {
  2504. for(n_mii=p->mii-1; n_mii>=0; --n_mii)
  2505. if( p->midiBuf[n_mii].mni == mni )
  2506. break;
  2507. if( n_mii<0 )
  2508. n_mii = cmInvalidIdx;
  2509. }
  2510. }
  2511. else // ... or push a new record onto p->midiBuf[]
  2512. {
  2513. n_mii = p->mii;
  2514. ++p->mii;
  2515. }
  2516. // store the MIDI event
  2517. p->midiBuf[n_mii].mni = mni;
  2518. p->midiBuf[n_mii].locIdx = locIdx;
  2519. p->midiBuf[n_mii].scEvtIdx = scEvtIdx;
  2520. p->midiBuf[n_mii].smpIdx = smpIdx;
  2521. p->midiBuf[n_mii].pitch = pitch;
  2522. p->midiBuf[n_mii].vel = vel;
  2523. // setting vsi=nsi and vsli=nsli will indicate to the calling
  2524. // program that no new sets are ready.
  2525. p->vsi = p->nsi;
  2526. p->vsli = p->nsli;
  2527. if( locIdx == cmInvalidIdx )
  2528. return cmOkRC;
  2529. //
  2530. unsigned scLocIdx = p->mp->loc[ locIdx ].scLocIdx;
  2531. unsigned maxScLocIdx = cmScoreLocCount(p->mp->scH)-1;
  2532. // if this cmScMeas object has not yet synchronized to the cmScMatcher
  2533. // (if p->nsli is not valid)
  2534. if( p->nsli == cmInvalidIdx )
  2535. {
  2536. unsigned i;
  2537. for(i=0; i<p->sn; ++i)
  2538. if( p->set[i].esli+1 == scLocIdx )
  2539. {
  2540. p->nsli = scLocIdx;
  2541. p->nsi = i;
  2542. break;
  2543. }
  2544. if(i==p->sn)
  2545. return rc;
  2546. }
  2547. p->vsi = p->nsi;
  2548. p->vsli = p->nsli;
  2549. // for each cmScore location between p->nsli and scLocIdx
  2550. for(; p->nsli<=scLocIdx && p->nsi < p->sn; ++p->nsli)
  2551. {
  2552. // if this score location index (p->nsli) is one score location
  2553. // ahead of the next sets ending location.
  2554. while( cmMin(maxScLocIdx,p->set[p->nsi].esli+1) == p->nsli )
  2555. {
  2556. // calculate the value assoc'd with p->set[p->nsi]
  2557. _cmScMeasCalcVal(p, p->set + p->nsi, n_mii );
  2558. // advance the set index
  2559. ++p->nsi;
  2560. }
  2561. }
  2562. return rc;
  2563. }
  2564. //=======================================================================================================================
  2565. cmRC_t cmScAlignScanToTimeLineEvent( cmScMatcher* p, cmTlH_t tlH, cmTlObj_t* top, unsigned endSmpIdx )
  2566. {
  2567. assert( top != NULL );
  2568. cmTlMidiEvt_t* mep = NULL;
  2569. cmRC_t rc = cmOkRC;
  2570. // as long as more MIDI events are available get the next MIDI msg
  2571. while( rc==cmOkRC && (mep = cmTlNextMidiEvtObjPtr(tlH, top, top->seqId )) != NULL )
  2572. {
  2573. top = &mep->obj;
  2574. // if the msg falls after the end of the marker then we are through
  2575. if( mep->obj.seqSmpIdx != cmInvalidIdx && mep->obj.seqSmpIdx > endSmpIdx )
  2576. break;
  2577. // if the time line MIDI msg a note-on
  2578. if( (mep->msg->status&0xf0) == kNoteOnMdId )
  2579. {
  2580. rc = cmScMatcherExec(p, mep->obj.seqSmpIdx, mep->msg->status, mep->msg->u.chMsgPtr->d0, mep->msg->u.chMsgPtr->d1, NULL );
  2581. switch( rc )
  2582. {
  2583. case cmOkRC: // continue processing MIDI events
  2584. break;
  2585. case cmEofRC: // end of the score was encountered
  2586. break;
  2587. case cmInvalidArgRC: // p->eli was not set correctly
  2588. break;
  2589. case cmSubSysFailRC: // scan resync failed
  2590. break;
  2591. default:
  2592. { assert(0); }
  2593. }
  2594. }
  2595. }
  2596. if( rc == cmEofRC )
  2597. rc = cmOkRC;
  2598. return rc;
  2599. }
  2600. // This callback connects/feeds the cmScMeas object from the cmScMatcher object.
  2601. // (See _cmScMatcherStoreResult().)
  2602. void cmScMatcherCb( cmScMatcher* p, void* arg, cmScMatcherResult_t* rp )
  2603. {
  2604. cmScMeas* mp = (cmScMeas*)arg;
  2605. cmScMeasExec(mp, rp->mni, rp->locIdx, rp->scEvtIdx, rp->flags, rp->smpIdx, rp->pitch, rp->vel );
  2606. }
  2607. void cmScAlignScanMarkers( cmRpt_t* rpt, cmTlH_t tlH, cmScH_t scH )
  2608. {
  2609. unsigned i;
  2610. double srate = cmTimeLineSampleRate(tlH);
  2611. unsigned midiN = 7;
  2612. unsigned scWndN = 10;
  2613. unsigned markN = 291;
  2614. unsigned dynRefArray[] = { 14, 28, 42, 56, 71, 85, 99, 113,128 };
  2615. unsigned dynRefCnt = sizeof(dynRefArray)/sizeof(dynRefArray[0]);
  2616. cmCtx* ctx = cmCtxAlloc(NULL, rpt, cmLHeapNullHandle, cmSymTblNullHandle );
  2617. cmScMeas* mp = cmScMeasAlloc(ctx,NULL,scH,srate,dynRefArray,dynRefCnt);
  2618. cmScMatcher* p = cmScMatcherAlloc(ctx,NULL,srate,scH,scWndN,midiN,cmScMatcherCb,mp);
  2619. double scoreThresh = 0.5;
  2620. unsigned candCnt = 0;
  2621. unsigned initFailCnt = 0;
  2622. unsigned otherFailCnt = 0;
  2623. unsigned scoreFailCnt = 0;
  2624. bool printFl = false;
  2625. unsigned markCharCnt = 31;
  2626. cmChar_t markText[ markCharCnt+1 ];
  2627. cmTimeSpec_t t0,t1;
  2628. cmTimeGet(&t0);
  2629. // for each marker
  2630. for(i=0; i<markN; ++i)
  2631. {
  2632. // form the marker text
  2633. snprintf(markText,markCharCnt,"Mark %i",i);
  2634. // locate the marker
  2635. cmTlMarker_t* tlmp = cmTimeLineMarkerFind( tlH, markText );
  2636. if( tlmp == NULL )
  2637. {
  2638. if( printFl )
  2639. printf("The marker '%s' was not found.\n\n",markText);
  2640. continue;
  2641. }
  2642. // skip markers which do not contain text
  2643. if( cmTextIsEmpty(tlmp->text) )
  2644. {
  2645. if( printFl )
  2646. printf("The marker '%s' is being skipped because it has no text.\n\n",markText);
  2647. continue;
  2648. }
  2649. printf("=================== MARKER:%s ===================\n",markText);
  2650. cmScMatcherReset(p,0); // reset the score follower to the beginnig of the score
  2651. cmScMeasReset(mp);
  2652. ++candCnt;
  2653. // scan to the beginning of the marker
  2654. cmRC_t rc = cmScAlignScanToTimeLineEvent(p,tlH,&tlmp->obj,tlmp->obj.seqSmpIdx+tlmp->obj.durSmpCnt);
  2655. bool pfl = true;
  2656. if( rc != cmOkRC || p->begSyncLocIdx==cmInvalidIdx)
  2657. {
  2658. bool fl = printFl;
  2659. printFl = true;
  2660. // if a no alignment was found
  2661. if( p->begSyncLocIdx == cmInvalidIdx )
  2662. rc = cmInvalidArgRC;
  2663. if( p->mni == 0 )
  2664. {
  2665. if( printFl )
  2666. printf("mark:%i midi:%i Not enough MIDI notes to fill the scan buffer.\n",i,p->mni);
  2667. pfl = false;
  2668. }
  2669. else
  2670. {
  2671. switch(rc)
  2672. {
  2673. case cmInvalidArgRC:
  2674. if( printFl )
  2675. printf("mark:%i INITIAL SYNC FAIL\n",i);
  2676. ++initFailCnt;
  2677. pfl = false;
  2678. break;
  2679. case cmSubSysFailRC:
  2680. if( printFl )
  2681. printf("mark:%i SCAN RESYNC FAIL\n",i);
  2682. ++otherFailCnt;
  2683. break;
  2684. default:
  2685. if( printFl )
  2686. printf("mark:%i UNKNOWN FAIL\n",i);
  2687. ++otherFailCnt;
  2688. }
  2689. }
  2690. printFl = fl;
  2691. }
  2692. if( pfl )
  2693. {
  2694. double fmeas = cmScMatcherFMeas(p);
  2695. if( printFl )
  2696. printf("mark:%i midi:%i loc:%i bar:%i cost:%f f-meas:%f text:%s\n",i,p->mni,p->begSyncLocIdx,p->mp->loc[p->begSyncLocIdx].barNumb,p->s_opt,fmeas,tlmp->text);
  2697. if( fmeas < scoreThresh )
  2698. ++scoreFailCnt;
  2699. }
  2700. //print score and match for entire marker
  2701. //cmScMatcherPrint(p);
  2702. // ONLY USE ONE MARKER DURING TESTING
  2703. // break;
  2704. if( printFl )
  2705. printf("\n");
  2706. }
  2707. printf("cand:%i fail:%i - init:%i score:%i other:%i\n\n",candCnt,initFailCnt+scoreFailCnt+otherFailCnt,initFailCnt,scoreFailCnt,otherFailCnt);
  2708. cmTimeGet(&t1);
  2709. printf("elapsed:%f\n", (double)cmTimeElapsedMicros(&t0,&t1)/1000000.0 );
  2710. cmScMatcherFree(&p);
  2711. cmScMeasFree(&mp);
  2712. cmCtxFree(&ctx);
  2713. }
  2714. //=======================================================================================================================
  2715. cmScModulator* cmScModulatorAlloc( cmCtx* c, cmScModulator* p, cmCtx_t* ctx, cmSymTblH_t stH, double srate, unsigned samplesPerCycle, const cmChar_t* fn, const cmChar_t* modLabel, cmScModCb_t cbFunc, void* cbArg )
  2716. {
  2717. cmScModulator* op = cmObjAlloc(cmScModulator,c,p);
  2718. if( ctx != NULL )
  2719. if( cmScModulatorInit(op,ctx,stH,srate,samplesPerCycle,fn,modLabel,cbFunc,cbArg) != cmOkRC )
  2720. cmScModulatorFree(&op);
  2721. return op;
  2722. }
  2723. cmRC_t cmScModulatorFree( cmScModulator** pp )
  2724. {
  2725. cmRC_t rc = cmOkRC;
  2726. if( pp==NULL || *pp==NULL )
  2727. return rc;
  2728. cmScModulator* p = *pp;
  2729. if((rc = cmScModulatorFinal(p)) != cmOkRC )
  2730. return rc;
  2731. cmMemFree(p->earray);
  2732. cmObjFree(pp);
  2733. return rc;
  2734. }
  2735. typedef struct
  2736. {
  2737. unsigned typeId;
  2738. unsigned minArgCnt;
  2739. const cmChar_t* label;
  2740. } _cmScModTypeMap_t;
  2741. _cmScModTypeMap_t _cmScModTypeArray[] =
  2742. {
  2743. { kSetModTId, 1, "set" },
  2744. { kLineModTId, 2, "line" },
  2745. { kSetLineModTId, 3, "sline" },
  2746. { kPostModTId, 4, "post" },
  2747. { kInvalidModTId, 0, "<invalid>"}
  2748. };
  2749. const _cmScModTypeMap_t* _cmScModTypeLabelToMap( const cmChar_t* label )
  2750. {
  2751. unsigned i;
  2752. for(i=0; _cmScModTypeArray[i].typeId!=kInvalidModTId; ++i)
  2753. if( strcmp(_cmScModTypeArray[i].label,label) == 0 )
  2754. return _cmScModTypeArray + i;
  2755. return NULL;
  2756. }
  2757. cmScModVar_t* _cmScModSymToVar( cmScModulator* p, unsigned varSymId )
  2758. {
  2759. cmScModVar_t* vp = p->vlist;
  2760. for(; vp!=NULL; vp=vp->vlink)
  2761. if( varSymId == vp->varSymId )
  2762. return vp;
  2763. return NULL;
  2764. }
  2765. cmScModVar_t* _cmScModulatorInsertVar( cmScModulator* p, unsigned varSymId, unsigned flags )
  2766. {
  2767. cmScModVar_t* vp = _cmScModSymToVar(p,varSymId);
  2768. if( vp == NULL )
  2769. {
  2770. vp = cmMemAllocZ(cmScModVar_t,1);
  2771. vp->varSymId = varSymId;
  2772. vp->outVarId = cmInvalidId;
  2773. vp->vlink = p->vlist;
  2774. p->vlist = vp;
  2775. }
  2776. vp->flags = flags;
  2777. vp->value = DBL_MAX;
  2778. vp->min = DBL_MAX;
  2779. vp->max = DBL_MAX;
  2780. vp->rate = DBL_MAX;
  2781. vp->phase = 0;
  2782. vp->entry = NULL;
  2783. vp->alink = NULL;
  2784. return vp;
  2785. }
  2786. cmScModEntry_t* _cmScModulatorInsertEntry(cmScModulator* p, unsigned idx, unsigned scLocIdx, unsigned modSymId, unsigned varSymId, unsigned typeId, unsigned paramCnt )
  2787. {
  2788. assert( idx < p->en );
  2789. p->earray[idx].scLocIdx = scLocIdx;
  2790. p->earray[idx].typeId = typeId;
  2791. p->earray[idx].varPtr = _cmScModulatorInsertVar(p,varSymId,0);
  2792. if( p->earray[idx].varPtr->outVarId == cmInvalidIdx )
  2793. p->earray[idx].varPtr->outVarId = p->outVarCnt++;
  2794. return p->earray + idx;
  2795. }
  2796. /*
  2797. {
  2798. [
  2799. { loc:123, mod:modlabel, var:varlabel, param:[ ] }
  2800. ]
  2801. }
  2802. */
  2803. // Parameter values are found as values of the 'data','min' or 'max' fields.
  2804. // A parameter value may be either a symbol identifier (mapped to a variable)
  2805. // or a literal number. This function determines which form the paramter
  2806. // value takes and parses it accordingly.
  2807. cmRC_t _cmScModulatorParseParam( cmScModulator* p, cmSymTblH_t stH, cmJsonNode_t* np, cmScModParam_t* pp )
  2808. {
  2809. cmRC_t rc = cmOkRC;
  2810. switch( np->typeId )
  2811. {
  2812. case kIntTId:
  2813. case kRealTId:
  2814. if( cmJsonRealValue(np, &pp->val ) != kOkJsRC )
  2815. {
  2816. rc = cmCtxRtCondition( &p->obj, cmInvalidArgRC, "Error parsing in Modulator literal value." );
  2817. goto errLabel;
  2818. }
  2819. pp->pid = kLiteralModPId;
  2820. break;
  2821. case kStringTId:
  2822. {
  2823. const cmChar_t* label = NULL;
  2824. if( cmJsonStringValue(np, &label) != kOkJsRC )
  2825. {
  2826. rc = cmCtxRtCondition( &p->obj, cmInvalidArgRC, "Error parsing in Modulator symbol label." );
  2827. goto errLabel;
  2828. }
  2829. pp->symId = cmSymTblRegisterSymbol(stH,label);
  2830. pp->pid = kSymbolModPId;
  2831. }
  2832. break;
  2833. default:
  2834. rc = cmCtxRtCondition( &p->obj, cmInvalidArgRC, "Parameter value is not a number or identifier." );
  2835. goto errLabel;
  2836. break;
  2837. }
  2838. errLabel:
  2839. return rc;
  2840. }
  2841. cmRC_t _cmScModulatorParse( cmScModulator* p, cmCtx_t* ctx, cmSymTblH_t stH, const cmChar_t* fn )
  2842. {
  2843. cmRC_t rc = cmOkRC;
  2844. cmJsonNode_t* jnp = NULL;
  2845. cmJsonH_t jsH = cmJsonNullHandle;
  2846. unsigned i = cmInvalidIdx;
  2847. unsigned j = cmInvalidIdx;
  2848. // read the JSON file
  2849. if( cmJsonInitializeFromFile(&jsH, fn, ctx ) != kOkJsRC )
  2850. return cmCtxRtCondition( &p->obj, cmInvalidArgRC, "JSON file parse failed on the modulator file: %s.",cmStringNullGuard(fn) );
  2851. jnp = cmJsonRoot(jsH);
  2852. // validate that the first child as an array
  2853. if( jnp==NULL || ((jnp = cmJsonNodeMemberValue(jnp,"array")) == NULL) || cmJsonIsArray(jnp)==false )
  2854. {
  2855. rc = cmCtxRtCondition( &p->obj, cmInvalidArgRC, "Modulator file header syntax error in file:%s",cmStringNullGuard(fn) );
  2856. goto errLabel;
  2857. }
  2858. // allocate the entry array
  2859. unsigned entryCnt = cmJsonChildCount(jnp);
  2860. p->earray = cmMemResizeZ(cmScModEntry_t,p->earray,entryCnt);
  2861. p->en = entryCnt;
  2862. unsigned prvScLocIdx = cmInvalidIdx;
  2863. const cmChar_t* prvModLabel = NULL;
  2864. const cmChar_t* prvVarLabel = NULL;
  2865. const cmChar_t* prvTypeLabel = NULL;
  2866. for(i=0; i<entryCnt; ++i)
  2867. {
  2868. cmJsRC_t jsRC;
  2869. const char* errLabelPtr = NULL;
  2870. unsigned scLocIdx = cmInvalidIdx;
  2871. const cmChar_t* modLabel = NULL;
  2872. const cmChar_t* varLabel = NULL;
  2873. const cmChar_t* typeLabel = NULL;
  2874. cmJsonNode_t* onp = cmJsonArrayElement(jnp,i);
  2875. cmJsonNode_t* dnp = NULL;
  2876. const _cmScModTypeMap_t* map = NULL;
  2877. if((jsRC = cmJsonMemberValues( onp, &errLabelPtr,
  2878. "loc", kIntTId | kOptArgJsFl, &scLocIdx,
  2879. "mod", kStringTId | kOptArgJsFl, &modLabel,
  2880. "var", kStringTId | kOptArgJsFl, &varLabel,
  2881. "type",kStringTId | kOptArgJsFl, &typeLabel,
  2882. NULL )) != kOkJsRC )
  2883. {
  2884. if( errLabelPtr == NULL )
  2885. rc = cmCtxRtCondition( &p->obj, cmInvalidArgRC, "Error:%s on record at index %i in file:%s",errLabelPtr,i,cmStringNullGuard(fn) );
  2886. else
  2887. rc = cmCtxRtCondition( &p->obj, cmInvalidArgRC, "Synax error in Modulator record at index %i in file:%s",i,cmStringNullGuard(fn) );
  2888. goto errLabel;
  2889. }
  2890. // if the score location was not given use the previous score location
  2891. if( scLocIdx == cmInvalidIdx )
  2892. scLocIdx = prvScLocIdx;
  2893. else
  2894. prvScLocIdx = scLocIdx;
  2895. // if the mod label was not given use the previous one
  2896. if( modLabel == NULL )
  2897. modLabel = prvModLabel;
  2898. else
  2899. prvModLabel = modLabel;
  2900. if( modLabel == NULL )
  2901. {
  2902. rc = cmCtxRtCondition(&p->obj, cmInvalidArgRC, "No 'mod' label has been set in mod file '%s'.",cmStringNullGuard(fn));
  2903. goto errLabel;
  2904. }
  2905. // if the var label was not given use the previous one
  2906. if( varLabel == NULL )
  2907. varLabel = prvVarLabel;
  2908. else
  2909. prvVarLabel = varLabel;
  2910. if( varLabel == NULL )
  2911. {
  2912. rc = cmCtxRtCondition(&p->obj, cmInvalidArgRC, "No 'var' label has been set in mod file '%s'.",cmStringNullGuard(fn));
  2913. goto errLabel;
  2914. }
  2915. // if the type label was not given use the previous one
  2916. if( typeLabel == NULL )
  2917. typeLabel = prvTypeLabel;
  2918. else
  2919. prvTypeLabel = typeLabel;
  2920. if( typeLabel == NULL )
  2921. {
  2922. rc = cmCtxRtCondition(&p->obj, cmInvalidArgRC, "No 'type' label has been set in mod file '%s'.",cmStringNullGuard(fn));
  2923. goto errLabel;
  2924. }
  2925. // validate the entry type label
  2926. if((map = _cmScModTypeLabelToMap(typeLabel)) == NULL )
  2927. {
  2928. rc = cmCtxRtCondition( &p->obj, cmInvalidArgRC, "Unknown entry type '%s' in Modulator record at index %i in file:%s",cmStringNullGuard(typeLabel),i,cmStringNullGuard(fn) );
  2929. goto errLabel;
  2930. }
  2931. unsigned modSymId = cmSymTblRegisterSymbol(stH,modLabel);
  2932. unsigned varSymId = cmSymTblRegisterSymbol(stH,varLabel);
  2933. // the mod entry label must match the modulators label
  2934. if( p->modSymId != modSymId )
  2935. {
  2936. --p->en;
  2937. continue;
  2938. }
  2939. // get the count of the elmenets in the data array
  2940. unsigned paramCnt = cmJsonChildCount(onp);
  2941. // fill the entry record and find or create the target var
  2942. cmScModEntry_t* ep = _cmScModulatorInsertEntry(p,i,scLocIdx,modSymId,varSymId,map->typeId,paramCnt);
  2943. typedef struct
  2944. {
  2945. const cmChar_t* label;
  2946. cmScModParam_t* param;
  2947. } map_t;
  2948. // parse the var and parameter records
  2949. map_t mapArray[] =
  2950. {
  2951. { "min", &ep->min },
  2952. { "max", &ep->max },
  2953. { "rate",&ep->rate },
  2954. { "val", &ep->beg },
  2955. { "end", &ep->end },
  2956. { "dur", &ep->dur },
  2957. { NULL, NULL }
  2958. };
  2959. unsigned j=0;
  2960. for(j=0; mapArray[j].param!=NULL; ++j)
  2961. if((dnp = cmJsonFindValue(jsH,mapArray[j].label, onp, kInvalidTId )) != NULL )
  2962. if((rc = _cmScModulatorParseParam(p,stH,dnp,mapArray[j].param)) != cmOkRC )
  2963. goto errLabel;
  2964. }
  2965. errLabel:
  2966. if( rc != cmOkRC )
  2967. cmCtxRtCondition( &p->obj, cmInvalidArgRC, "Error parsing in Modulator 'data' record at index %i value index %i in file:%s",i,j,cmStringNullGuard(fn) );
  2968. // release the JSON tree
  2969. if( cmJsonIsValid(jsH) )
  2970. cmJsonFinalize(&jsH);
  2971. return rc;
  2972. }
  2973. cmRC_t _cmScModulatorReset( cmScModulator* p, cmCtx_t* ctx, unsigned scLocIdx )
  2974. {
  2975. cmRC_t rc = cmOkRC;
  2976. p->alist = NULL;
  2977. p->elist = NULL;
  2978. p->nei = 0;
  2979. p->outVarCnt = 0;
  2980. // reload the file
  2981. if((rc = _cmScModulatorParse(p,ctx,p->stH,p->fn)) != cmOkRC )
  2982. goto errLabel;
  2983. // clear the active flag on all variables
  2984. cmScModVar_t* vp = p->vlist;
  2985. for(; vp!=NULL; vp=vp->vlink)
  2986. {
  2987. vp->flags = cmClrFlag(vp->flags,kActiveModFl);
  2988. vp->alink = NULL;
  2989. }
  2990. errLabel:
  2991. return rc;
  2992. }
  2993. cmRC_t cmScModulatorInit( cmScModulator* p, cmCtx_t* ctx, cmSymTblH_t stH, double srate, unsigned samplesPerCycle, const cmChar_t* fn, const cmChar_t* modLabel, cmScModCb_t cbFunc, void* cbArg )
  2994. {
  2995. cmRC_t rc;
  2996. if((rc = cmScModulatorFinal(p)) != cmOkRC )
  2997. return rc;
  2998. p->fn = cmMemAllocStr(fn);
  2999. p->stH = stH;
  3000. p->modSymId = cmSymTblRegisterSymbol(stH,modLabel);
  3001. p->cbFunc = cbFunc;
  3002. p->cbArg = cbArg;
  3003. p->samplesPerCycle = samplesPerCycle;
  3004. p->srate = srate;
  3005. if( rc != cmOkRC )
  3006. cmScModulatorFinal(p);
  3007. else
  3008. _cmScModulatorReset(p,ctx,0);
  3009. return rc;
  3010. }
  3011. cmRC_t cmScModulatorFinal( cmScModulator* p )
  3012. {
  3013. cmMemFree(p->fn);
  3014. // release each var record
  3015. cmScModVar_t* vp = p->vlist;
  3016. while( vp!=NULL )
  3017. {
  3018. cmScModVar_t* np = vp->vlink;
  3019. cmMemFree(vp);
  3020. vp=np;
  3021. }
  3022. return cmOkRC;
  3023. }
  3024. unsigned cmScModulatorOutVarCount( cmScModulator* p )
  3025. { return p->outVarCnt; }
  3026. cmScModVar_t* cmScModulatorOutVar( cmScModulator* p, unsigned idx )
  3027. {
  3028. unsigned i;
  3029. for(i=0; i<p->en; ++i)
  3030. if( p->earray[i].varPtr->outVarId == idx )
  3031. return p->earray[i].varPtr;
  3032. return NULL;
  3033. }
  3034. cmRC_t cmScModulatorSetValue( cmScModulator* p, unsigned varSymId, double value, double min, double max )
  3035. {
  3036. cmScModVar_t* vp;
  3037. // if the var does not exist ....
  3038. if((vp = _cmScModSymToVar(p, varSymId )) == NULL )
  3039. {
  3040. // ... then create it
  3041. vp = _cmScModulatorInsertVar(p,varSymId,kCalcModFl);
  3042. assert(vp!=NULL);
  3043. }
  3044. assert( min <= max);
  3045. vp->min = min;
  3046. vp->max = max;
  3047. vp->value = value;
  3048. return cmOkRC;
  3049. }
  3050. cmRC_t cmScModulatorReset( cmScModulator* p, cmCtx_t* ctx, unsigned scLocIdx )
  3051. {
  3052. _cmScModulatorReset(p,ctx,scLocIdx);
  3053. return cmScModulatorExec(p,scLocIdx);
  3054. }
  3055. void _cmScModUnlinkActive( cmScModulator* p, cmScModVar_t* vp, cmScModVar_t* pp )
  3056. {
  3057. // if vp is the first link on the chain
  3058. if( vp == p->alist )
  3059. p->alist = vp->alink;
  3060. // if vp is the last link on the chain
  3061. if( vp == p->elist )
  3062. p->elist = pp;
  3063. if( pp != NULL )
  3064. pp->alink = vp->alink;
  3065. vp->flags = cmClrFlag(vp->flags,kActiveModFl);
  3066. vp->alink = NULL;
  3067. vp->entry = NULL;
  3068. }
  3069. // If the requested parameter has a value then return it in *valPtr.
  3070. // If it does not then do nothing. This function applies scaling to RHS values.
  3071. cmRC_t _cmScModGetParam( cmScModulator* p, const cmScModParam_t* pp, double* valPtr )
  3072. {
  3073. cmRC_t rc = cmOkRC;
  3074. switch( pp->pid )
  3075. {
  3076. case kInvalidModPId:
  3077. rc = cmCtxRtCondition( &p->obj, cmInvalidArgRC, "An invalid parameter was encountered.");
  3078. goto errLabel;
  3079. break;
  3080. case kLiteralModPId:
  3081. *valPtr = pp->val;
  3082. break;
  3083. case kSymbolModPId:
  3084. {
  3085. cmScModVar_t* vp;
  3086. // get a pointer to the parameter variable
  3087. if((vp = _cmScModSymToVar(p, pp->symId )) == NULL )
  3088. {
  3089. rc = cmCtxRtCondition( &p->obj, cmInvalidArgRC, "Variable '%s' not found.",cmSymTblLabel(p->stH,pp->symId));
  3090. goto errLabel;
  3091. }
  3092. // if this is not a 'calculated' paramter then scale it here.
  3093. if( cmIsFlag(vp->flags,kCalcModFl ) && vp->min!=DBL_MAX && vp->max!=DBL_MAX )
  3094. *valPtr = (vp->value - vp->min)/(vp->max-vp->min);
  3095. else
  3096. *valPtr = vp->value;
  3097. }
  3098. break;
  3099. default:
  3100. { assert(0); }
  3101. }
  3102. errLabel:
  3103. return rc;
  3104. }
  3105. // Type specific variable activation -
  3106. cmRC_t _cmScModActivate(cmScModulator* p, cmScModEntry_t* ep )
  3107. {
  3108. cmRC_t rc = cmOkRC;
  3109. cmScModVar_t* vp = ep->varPtr;
  3110. // optionally update the min/max/rate values in the target var
  3111. if( ep->min.pid != kInvalidModPId )
  3112. if((rc = _cmScModGetParam(p,&ep->min,&vp->min)) != cmOkRC )
  3113. goto errLabel;
  3114. if( ep->max.pid != kInvalidModPId )
  3115. if((rc = _cmScModGetParam(p,&ep->max,&vp->max)) != cmOkRC )
  3116. goto errLabel;
  3117. if( ep->rate.pid != kInvalidModPId )
  3118. if((rc = _cmScModGetParam(p,&ep->rate,&vp->rate)) != cmOkRC )
  3119. goto errLabel;
  3120. switch( ep->typeId )
  3121. {
  3122. case kSetModTId:
  3123. break;
  3124. case kLineModTId:
  3125. vp->v0 = vp->value;
  3126. vp->phase = 0;
  3127. break;
  3128. case kSetLineModTId:
  3129. _cmScModGetParam(p,&ep->beg,&vp->value); // starting value
  3130. vp->v0 = vp->value; // set initial value
  3131. vp->phase = 0; // reset phase
  3132. break;
  3133. case kPostModTId:
  3134. p->postFl = vp->value;
  3135. break;
  3136. default:
  3137. { assert(0); }
  3138. }
  3139. errLabel:
  3140. return rc;
  3141. }
  3142. // Callback the application with a new variable value.
  3143. cmRC_t _cmScModExecSendValue( cmScModulator* p, cmScModVar_t* vp )
  3144. {
  3145. cmRC_t rc = cmOkRC;
  3146. bool sendFl = true;
  3147. double v = vp->value;
  3148. // scale the output value - this is equiv to scaling the LHS
  3149. if( cmIsFlag(vp->flags,kCalcModFl) && vp->min!=DBL_MAX && vp->max!=DBL_MAX )
  3150. v = vp->min + v * (vp->max - vp->min);
  3151. // if an output rate throttle is in effect ....
  3152. if( vp->rate!=DBL_MAX && vp->phase!=0 )
  3153. sendFl = remainder(vp->phase*p->samplesPerCycle, p->srate*vp->rate/1000 ) < p->samplesPerCycle;
  3154. if(sendFl)
  3155. p->cbFunc(p->cbArg,vp->varSymId,v,p->postFl);
  3156. return rc;
  3157. }
  3158. // Return true if vp should be deactivated otherwise return false.
  3159. bool _cmScModExec( cmScModulator* p, cmScModVar_t* vp )
  3160. {
  3161. cmRC_t rc = cmOkRC;
  3162. bool fl = false;
  3163. bool sendFl = true;
  3164. switch( vp->entry->typeId )
  3165. {
  3166. case kSetModTId:
  3167. {
  3168. if((rc = _cmScModGetParam(p,&vp->entry->beg,&vp->value)) != cmOkRC )
  3169. goto errLabel;
  3170. vp->phase = 0; // force the value to be sent
  3171. fl = true;
  3172. }
  3173. break;
  3174. case kSetLineModTId:
  3175. case kLineModTId:
  3176. {
  3177. double v1=0, td=0;
  3178. // get the target value
  3179. if((rc = _cmScModGetParam(p,&vp->entry->end,&v1)) != cmOkRC)
  3180. goto errLabel;
  3181. // get the time duration
  3182. if((rc = _cmScModGetParam(p,&vp->entry->dur,&td)) != cmOkRC)
  3183. goto errLabel;
  3184. double v = vp->v0 + (v1-vp->v0) * (vp->phase * p->samplesPerCycle) / (p->srate * td);
  3185. if((fl = (vp->value <= v1 && v >= v1) || (vp->value >= v1 && v <= v1 )) == true )
  3186. v = v1;
  3187. vp->value = v;
  3188. }
  3189. break;
  3190. case kPostModTId:
  3191. sendFl = false;
  3192. break;
  3193. default:
  3194. { assert(0); }
  3195. }
  3196. // notify the application that a new variable value has been generated
  3197. if(sendFl)
  3198. {
  3199. rc = _cmScModExecSendValue(p,vp);
  3200. // increment the phase - after send because send notices when phase is zero
  3201. vp->phase += 1;
  3202. }
  3203. errLabel:
  3204. if( rc != cmOkRC )
  3205. fl = true;
  3206. return fl;
  3207. }
  3208. cmRC_t cmScModulatorExec( cmScModulator* p, unsigned scLocIdx )
  3209. {
  3210. cmRC_t trc;
  3211. cmRC_t rc = cmOkRC;
  3212. // trigger entries that have expired since the last call to this function
  3213. for(; p->nei<p->en && (p->earray[p->nei].scLocIdx==-1 || p->earray[p->nei].scLocIdx<=scLocIdx); ++p->nei)
  3214. {
  3215. cmScModEntry_t* ep = p->earray + p->nei;
  3216. // if the variable assoc'd with this entry is not on the active list ...
  3217. if( cmIsFlag(ep->varPtr->flags,kActiveModFl) == false )
  3218. {
  3219. // ... then append it to the end of the active list ...
  3220. ep->varPtr->flags |= kActiveModFl;
  3221. if( p->elist == NULL )
  3222. p->elist = ep->varPtr;
  3223. else
  3224. {
  3225. p->elist->alink = ep->varPtr;
  3226. p->elist = ep->varPtr;
  3227. }
  3228. p->elist->alink = NULL;
  3229. if( p->alist == NULL )
  3230. p->alist = ep->varPtr;
  3231. }
  3232. // do type specific activation
  3233. if((trc = _cmScModActivate(p,ep)) != cmOkRC )
  3234. rc = trc;
  3235. ep->varPtr->entry = ep;
  3236. }
  3237. // Update the active variables
  3238. cmScModVar_t* pp = NULL;
  3239. cmScModVar_t* vp = p->alist;
  3240. for(; vp!=NULL; vp=vp->alink)
  3241. {
  3242. if( _cmScModExec(p,vp) )
  3243. _cmScModUnlinkActive(p,vp,pp);
  3244. else
  3245. pp = vp;
  3246. }
  3247. return rc;
  3248. }
  3249. void _cmScModDumpParam( cmScModulator* p, const cmChar_t* label, cmScModParam_t* pp )
  3250. {
  3251. printf("%s: ",label);
  3252. switch( pp->pid )
  3253. {
  3254. case kInvalidModPId:
  3255. printf("<invalid>");
  3256. break;
  3257. case kLiteralModPId:
  3258. if( pp->val == DBL_MAX )
  3259. printf("<max> ");
  3260. else
  3261. printf("%f ",pp->val);
  3262. break;
  3263. case kSymbolModPId:
  3264. printf("%s ",cmSymTblLabel(p->stH,pp->symId));
  3265. break;
  3266. default:
  3267. { assert(0); }
  3268. }
  3269. }
  3270. void _cmScModDumpVal( cmChar_t* label, double val )
  3271. {
  3272. printf("%s:",label);
  3273. if( val == DBL_MAX )
  3274. printf("<max> " );
  3275. else
  3276. printf("%f ",val);
  3277. }
  3278. void _cmScModDumpVar( cmScModulator* p, const cmScModVar_t* vp )
  3279. {
  3280. printf("%7s %3i fl:0x%x entry:%p alink:%p ",cmSymTblLabel(p->stH,vp->varSymId),vp->outVarId,vp->flags,vp->entry,vp->alink);
  3281. _cmScModDumpVal("val",vp->value);
  3282. _cmScModDumpVal("min",vp->min);
  3283. _cmScModDumpVal("max",vp->max);
  3284. _cmScModDumpVal("rate",vp->rate);
  3285. _cmScModDumpVal("v0",vp->v0);
  3286. }
  3287. cmRC_t cmScModulatorDump( cmScModulator* p )
  3288. {
  3289. cmRC_t rc = cmOkRC;
  3290. printf("MOD:\n");
  3291. printf("nei:%i alist:%p outVarCnt:%i\n",p->nei,p->alist,p->outVarCnt);
  3292. printf("ENTRIES:\n");
  3293. unsigned i;
  3294. for(i=0; i<p->en; ++i)
  3295. {
  3296. cmScModEntry_t* ep = p->earray + i;
  3297. printf("%3i %4i %2i %7s ", i, ep->scLocIdx, ep->typeId, cmSymTblLabel(p->stH,ep->varPtr->varSymId));
  3298. _cmScModDumpParam(p," beg", &ep->beg);
  3299. _cmScModDumpParam(p," end", &ep->end);
  3300. _cmScModDumpParam(p," min", &ep->min);
  3301. _cmScModDumpParam(p," max", &ep->max);
  3302. _cmScModDumpParam(p," rate",&ep->rate);
  3303. printf("\n");
  3304. }
  3305. printf("VARIABLES\n");
  3306. cmScModVar_t* vp = p->vlist;
  3307. for(; vp!=NULL; vp=vp->vlink)
  3308. {
  3309. _cmScModDumpVar(p,vp);
  3310. printf("\n");
  3311. }
  3312. return rc;
  3313. }
  3314. //=======================================================================================================================
  3315. cmRecdPlay* cmRecdPlayAlloc( cmCtx* c, cmRecdPlay* p, double srate, unsigned fragCnt, unsigned chCnt, double initFragSecs, double maxLaSecs, double curLaSecs )
  3316. {
  3317. cmRecdPlay* op = cmObjAlloc(cmRecdPlay,c,p);
  3318. if( cmRecdPlayInit(op,srate,fragCnt,chCnt,initFragSecs,maxLaSecs,curLaSecs) != cmOkRC )
  3319. cmRecdPlayFree(&op);
  3320. return op;
  3321. }
  3322. cmRC_t cmRecdPlayFree( cmRecdPlay** pp )
  3323. {
  3324. cmRC_t rc = cmOkRC;
  3325. if( pp==NULL || *pp==NULL )
  3326. return rc;
  3327. cmRecdPlay* p = *pp;
  3328. if((rc = cmRecdPlayFinal(p)) != cmOkRC )
  3329. return rc;
  3330. cmObjFree(pp);
  3331. return rc;
  3332. }
  3333. cmRC_t cmRecdPlayInit( cmRecdPlay* p, double srate, unsigned fragCnt, unsigned chCnt, double initFragSecs, double maxLaSecs, double curLaSecs )
  3334. {
  3335. cmRC_t rc;
  3336. unsigned i;
  3337. if( curLaSecs > maxLaSecs )
  3338. return cmCtxRtCondition( &p->obj, cmInvalidArgRC, "The initial look-ahead time %f is greater than the maximum look-ahead time %f.",curLaSecs,maxLaSecs);
  3339. if((rc = cmRecdPlayFinal(p)) != cmOkRC )
  3340. return rc;
  3341. if( chCnt == 0 )
  3342. return cmOkRC;
  3343. p->frags = cmMemAllocZ(cmRecdPlayFrag,fragCnt);
  3344. p->fragCnt = fragCnt;
  3345. p->srate = srate;
  3346. p->chCnt = chCnt;
  3347. p->initFragSecs = initFragSecs;
  3348. p->maxLaSmpCnt = floor(maxLaSecs*srate);
  3349. p->curLaSmpCnt = floor(curLaSecs*srate);
  3350. p->laChs = cmMemAllocZ(cmSample_t*,chCnt);
  3351. p->laSmpIdx = 0;
  3352. for(i=0; i<chCnt; ++i)
  3353. p->laChs[i] = cmMemAllocZ(cmSample_t,p->maxLaSmpCnt);
  3354. return rc;
  3355. }
  3356. cmRC_t cmRecdPlayFinal( cmRecdPlay* p )
  3357. {
  3358. unsigned i,j;
  3359. // free the fragments
  3360. for(i=0; i<p->fragCnt; ++i)
  3361. {
  3362. for(j=0; j<p->chCnt; ++j)
  3363. cmMemFree(p->frags[i].chArray[j]);
  3364. cmMemFree(p->frags[i].chArray);
  3365. }
  3366. // free the look-ahead buffers
  3367. for(i=0; i<p->chCnt; ++i)
  3368. cmMemFree(p->laChs[i]);
  3369. cmMemPtrFree(&p->laChs);
  3370. cmMemPtrFree(&p->frags);
  3371. p->fragCnt = 0;
  3372. p->chCnt = 0;
  3373. p->rlist = NULL;
  3374. p->plist = NULL;
  3375. return cmOkRC;
  3376. }
  3377. cmRC_t cmRecdPlayRegisterFrag( cmRecdPlay* p, unsigned fragIdx, unsigned labelSymId )
  3378. {
  3379. assert( fragIdx < p->fragCnt );
  3380. unsigned i;
  3381. p->frags[ fragIdx ].labelSymId = labelSymId;
  3382. p->frags[ fragIdx ].chArray = cmMemResizeZ(cmSample_t*,p->frags[fragIdx].chArray,p->chCnt);
  3383. for(i=0; i<p->chCnt; ++i)
  3384. {
  3385. p->frags[ fragIdx ].allocCnt = floor(p->initFragSecs * p->srate);
  3386. p->frags[ fragIdx ].chArray[i] = cmMemResizeZ(cmSample_t,p->frags[ fragIdx ].chArray[i],p->frags[fragIdx].allocCnt);
  3387. }
  3388. return cmOkRC;
  3389. }
  3390. cmRC_t cmRecdPlayRewind( cmRecdPlay* p )
  3391. {
  3392. unsigned i;
  3393. p->laSmpIdx = 0;
  3394. while( p->plist != NULL )
  3395. cmRecdPlayEndPlay(p,p->plist->labelSymId);
  3396. while( p->rlist != NULL )
  3397. cmRecdPlayEndRecord(p,p->plist->labelSymId);
  3398. for(i=0; i<p->fragCnt; ++i)
  3399. p->frags[i].playIdx = 0;
  3400. return cmOkRC;
  3401. }
  3402. cmRC_t cmRecdPlayBeginRecord( cmRecdPlay* p, unsigned labelSymId )
  3403. {
  3404. unsigned i;
  3405. for(i=0; i<p->fragCnt; ++i)
  3406. if( p->frags[i].labelSymId == labelSymId )
  3407. {
  3408. // if the frag is not already on the recd list
  3409. if( p->frags[i].rlink == NULL )
  3410. {
  3411. p->frags[i].recdIdx = 0;
  3412. p->frags[i].playIdx = 0;
  3413. p->frags[i].rlink = p->rlist;
  3414. p->rlist = p->frags + i;
  3415. // handle LA buf longer than frag buf.
  3416. int cpyCnt = cmMin(p->curLaSmpCnt,p->frags[i].allocCnt);
  3417. // go backwards in LA buf from newest sample to find init src offset
  3418. int srcOffs = p->laSmpIdx - cpyCnt;
  3419. // if the src is before the first sample in the LA buf then wrap to end of buf
  3420. if( srcOffs < 0 )
  3421. srcOffs += p->maxLaSmpCnt;
  3422. assert( 0 <= srcOffs && srcOffs < p->maxLaSmpCnt );
  3423. // cnt of samples to copy from LA buf (limited by end of LA buf)
  3424. int n0 = cmMin(cpyCnt,p->maxLaSmpCnt - srcOffs);
  3425. // if necessary wrap to begin of LA buf for remaining samples
  3426. int n1 = cpyCnt>n0 ? n1 = cpyCnt-n0 : 0;
  3427. int j;
  3428. assert(n0+n1 == cpyCnt );
  3429. for(j=0; j<p->chCnt; ++j)
  3430. cmVOS_Copy(p->frags[i].chArray[j],n0,p->laChs[j]+srcOffs);
  3431. if( n1 > 0 )
  3432. {
  3433. for(j=0; j<p->chCnt; ++j)
  3434. cmVOS_Copy(p->frags[i].chArray[j]+n0,n1,p->laChs[j]);
  3435. }
  3436. p->frags[i].recdIdx = cpyCnt;
  3437. }
  3438. return cmOkRC;
  3439. }
  3440. return cmCtxRtCondition( &p->obj, cmInvalidArgRC, "The fragment label symbol id '%i' not found for 'begin record'.",labelSymId);
  3441. }
  3442. cmRC_t cmRecdPlayEndRecord( cmRecdPlay* p, unsigned labelSymId )
  3443. {
  3444. cmRecdPlayFrag* fp = p->rlist;
  3445. cmRecdPlayFrag* pp = NULL;
  3446. for(; fp != NULL; fp=fp->rlink )
  3447. {
  3448. if( fp->labelSymId == labelSymId )
  3449. {
  3450. if( pp == NULL )
  3451. p->rlist = fp->rlink;
  3452. else
  3453. pp->rlink = fp->rlink;
  3454. fp->rlink = NULL;
  3455. return cmOkRC;
  3456. }
  3457. pp = fp;
  3458. }
  3459. return cmCtxRtCondition( &p->obj, cmInvalidArgRC, "The fragment label symbol id '%i' not found for 'end record'.",labelSymId);
  3460. }
  3461. cmRC_t cmRecdPlayBeginPlay( cmRecdPlay* p, unsigned labelSymId )
  3462. {
  3463. unsigned i;
  3464. for(i=0; i<p->fragCnt; ++i)
  3465. if( p->frags[i].labelSymId == labelSymId )
  3466. {
  3467. // if the frag is not already on the play list
  3468. if( p->frags[i].plink == NULL )
  3469. {
  3470. p->frags[i].playIdx = 0;
  3471. p->frags[i].fadeSmpIdx = 0;
  3472. p->frags[i].fadeDbPerSec = 0.0;
  3473. p->frags[i].plink = p->plist;
  3474. p->plist = p->frags + i;
  3475. }
  3476. return cmOkRC;
  3477. }
  3478. return cmCtxRtCondition( &p->obj, cmInvalidArgRC, "The fragment label symbol id '%i' not found for 'begin play'.",labelSymId);
  3479. }
  3480. cmRC_t cmRecdPlayEndPlay( cmRecdPlay* p, unsigned labelSymId )
  3481. {
  3482. cmRecdPlayFrag* fp = p->plist;
  3483. cmRecdPlayFrag* pp = NULL;
  3484. for(; fp != NULL; fp=fp->plink )
  3485. {
  3486. if( fp->labelSymId == labelSymId )
  3487. {
  3488. if( pp == NULL )
  3489. p->plist = fp->plink;
  3490. else
  3491. pp->plink = fp->plink;
  3492. fp->plink = NULL;
  3493. return cmOkRC;
  3494. }
  3495. pp = fp;
  3496. }
  3497. return cmCtxRtCondition( &p->obj, cmInvalidArgRC, "The fragment label symbol id '%i' not found for 'end play'.",labelSymId);
  3498. }
  3499. cmRC_t cmRecdPlayBeginFade( cmRecdPlay* p, unsigned labelSymId, double fadeDbPerSec )
  3500. {
  3501. cmRecdPlayFrag* fp = p->plist;
  3502. for(; fp != NULL; fp=fp->plink )
  3503. if( fp->labelSymId == labelSymId )
  3504. {
  3505. fp->fadeDbPerSec = -fabs(fadeDbPerSec);
  3506. return cmOkRC;
  3507. }
  3508. return cmCtxRtCondition( &p->obj, cmInvalidArgRC, "The fragment label symbol id '%i' not found for 'fade begin'.",labelSymId);
  3509. }
  3510. cmRC_t cmRecdPlayExec( cmRecdPlay* p, const cmSample_t** iChs, cmSample_t** oChs, unsigned chCnt, unsigned smpCnt )
  3511. {
  3512. unsigned i;
  3513. chCnt = cmMin(chCnt, p->chCnt);
  3514. //-------------------------------------------------------------------
  3515. // copy incoming audio into the look-head buffers
  3516. //
  3517. // if the number of incoming samples is longer than the look-head buffer
  3518. // then copy exactly maxLaSmpCnt samples from the end of the incoming sample
  3519. // buffer to the look-ahead buffer.
  3520. unsigned srcOffs = 0;
  3521. unsigned srcSmpCnt = smpCnt;
  3522. if( srcSmpCnt > p->maxLaSmpCnt )
  3523. {
  3524. // advance incoming sample buffer so that there are maxLaSmpCnt samples remaining
  3525. srcOffs = smpCnt-p->maxLaSmpCnt;
  3526. srcSmpCnt = p->maxLaSmpCnt; // decrease the total samples to copy
  3527. }
  3528. // count of samples from cur posn to end of the LA buffer.
  3529. unsigned n0 = cmMin(srcSmpCnt, p->maxLaSmpCnt - p->laSmpIdx );
  3530. // count of samples past the end of the LA buffer to be wrapped into begin of buffer
  3531. unsigned n1 = srcSmpCnt>n0 ? srcSmpCnt-n0 : 0;
  3532. assert(n0+n1 == srcSmpCnt);
  3533. // copy first block to end of LA buffer
  3534. for(i=0; i<chCnt; ++i)
  3535. cmVOS_Copy(p->laChs[i]+p->laSmpIdx,n0,iChs[i] + srcOffs);
  3536. p->laSmpIdx += n0;
  3537. if( n1!=0)
  3538. {
  3539. // copy second block to begin of LA buffer
  3540. for(i=0; i<chCnt; ++i)
  3541. cmVOS_Copy(p->laChs[i],n1,iChs[i] + srcOffs + n0);
  3542. p->laSmpIdx = n1;
  3543. }
  3544. //-------------------------------------------------------------------
  3545. // copy incoming audio into the active record buffers
  3546. //
  3547. cmRecdPlayFrag* fp = p->rlist;
  3548. for(; fp!=NULL; fp=fp->rlink)
  3549. {
  3550. assert( fp->recdIdx <= fp->allocCnt);
  3551. unsigned n = cmMin(fp->allocCnt - fp->recdIdx,smpCnt);
  3552. unsigned i;
  3553. for(i=0; i<p->chCnt; ++i)
  3554. {
  3555. cmVOS_Copy(fp->chArray[i] + fp->recdIdx, n, iChs[i] );
  3556. fp->recdIdx += n;
  3557. }
  3558. }
  3559. //-------------------------------------------------------------------
  3560. // copy outgoing audio out of the active play buffers
  3561. //
  3562. fp = p->plist;
  3563. for(; fp!=NULL; fp=fp->rlink)
  3564. {
  3565. assert( fp->playIdx <= fp->recdIdx);
  3566. double gain = pow(10.0,((fp->fadeSmpIdx / p->srate) * fp->fadeDbPerSec)/20.0);
  3567. unsigned n = cmMin(fp->recdIdx - fp->playIdx,smpCnt);
  3568. unsigned i;
  3569. for(i=0; i<p->chCnt; ++i)
  3570. {
  3571. cmVOS_MultVVS(oChs[i],n,fp->chArray[i] + fp->playIdx,gain);
  3572. fp->playIdx += n;
  3573. }
  3574. // if a fade rate has been set then advance the fade phase
  3575. if(fp->fadeDbPerSec!=0.0)
  3576. fp->fadeSmpIdx += smpCnt;
  3577. }
  3578. return cmOkRC;
  3579. }