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Rewrote pitch tracker

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This commit is contained in:
kevin 2012-11-18 22:41:27 -08:00
parent 0f776fb762
commit 68696bce20
6 changed files with 166 additions and 56 deletions
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171
cmProc4.c
View File

@ -25,11 +25,11 @@
cmScFol* cmScFolAlloc( cmCtx* c, cmScFol* p, cmReal_t srate, unsigned wndN, cmReal_t wndMs, cmScH_t scH )
cmScFol* cmScFolAlloc( cmCtx* c, cmScFol* p, cmReal_t srate, unsigned bufN, cmReal_t wndMs, cmScH_t scH )
{
cmScFol* op = cmObjAlloc(cmScFol,c,p);
if( srate != 0 )
if( cmScFolInit(op,srate,wndN,wndMs,scH) != cmOkRC )
if( cmScFolInit(op,srate,bufN,wndMs,scH) != cmOkRC )
cmScFolFree(&op);
return op;
}
@ -62,14 +62,14 @@ void _cmScFolPrint( cmScFol* p )
int i,j;
for(i=0; i<p->locN; ++i)
{
printf("%2i %5i ",p->loc[i].barNumb,p->loc[i].evtIdx);
printf("%2i %5i ",p->loc[i].barNumb,p->loc[i].scIdx);
for(j=0; j<p->loc[i].pitchCnt; ++j)
printf("%s ",cmMidiToSciPitch(p->loc[i].pitchV[j],NULL,0));
printf("\n");
}
}
cmRC_t cmScFolInit( cmScFol* p, cmReal_t srate, unsigned wndN, cmReal_t wndMs, cmScH_t scH )
cmRC_t cmScFolInit( cmScFol* p, cmReal_t srate, unsigned bufN, cmReal_t wndMs, cmScH_t scH )
{
cmRC_t rc;
if((rc = cmScFolFinal(p)) != cmOkRC )
@ -77,22 +77,19 @@ cmRC_t cmScFolInit( cmScFol* p, cmReal_t srate, unsigned wndN, cmReal_t wndMs
p->srate = srate;
p->scH = scH;
p->maxWndSmp = floor(wndMs * srate / 1000.0);
p->wndN = wndN;
p->wndV = cmMemResizeZ(cmScFolWndEle_t,p->wndV,wndN);
p->bufN = bufN;
p->bufV = cmMemResizeZ(cmScFolBufEle_t,p->bufV,bufN);
p->locN = cmScoreEvtCount(scH);
p->loc = cmMemResizeZ(cmScFolLoc_t,p->loc,p->locN);
p->sri = cmInvalidIdx;
p->sbi = cmInvalidIdx;
p->sei = cmInvalidIdx;
p->edWndMtx = cmVOU_LevEditDistAllocMtx(p->wndN);
p->evalWndN = 5;
p->allowedMissCnt = 1;
p->msln = 7;
p->mswn = 30;
p->edWndMtx = cmVOU_LevEditDistAllocMtx(p->bufN);
assert(p->evalWndN<p->wndN);
int i,n;
double maxDSecs = 0; // max time between events to be considered simultaneous
double maxDSecs = 0; // max time between score entries to be considered simultaneous
cmScoreEvt_t* e0p = NULL;
int j0 = 0;
@ -106,7 +103,7 @@ cmRC_t cmScFolInit( cmScFol* p, cmReal_t srate, unsigned wndN, cmReal_t wndMs
{
assert( j0+n < p->locN );
p->loc[j0+n].evtIdx = i;
p->loc[j0+n].scIdx = i;
p->loc[j0+n].barNumb = ep->barNumb;
// if the first event has not yet been selected
@ -141,7 +138,7 @@ cmRC_t cmScFolInit( cmScFol* p, cmReal_t srate, unsigned wndN, cmReal_t wndMs
for(m=0; m<n; ++m)
{
cmScoreEvt_t* tp = cmScoreEvt(scH,p->loc[j0+m].evtIdx);
cmScoreEvt_t* tp = cmScoreEvt(scH,p->loc[j0+m].scIdx);
assert(tp!=NULL);
p->loc[j0+k].pitchV[m] = tp->pitch;
}
@ -166,43 +163,34 @@ cmRC_t cmScFolReset( cmScFol* p, unsigned scoreIndex )
{
int i;
// zero the event index
memset(p->wndV,0,sizeof(cmScFolWndEle_t)*p->wndN);
// empty the event buffer
memset(p->bufV,0,sizeof(cmScFolBufEle_t)*p->bufN);
// don't allow the score index to be prior to the first note
if( scoreIndex < p->loc[0].evtIdx )
scoreIndex = p->loc[0].evtIdx;
if( scoreIndex < p->loc[0].scIdx )
scoreIndex = p->loc[0].scIdx;
p->sei = cmInvalidIdx;
p->sbi = cmInvalidIdx;
// locate the score element in svV[] that is closest to,
// and possibly after, scoreIndex.
for(i=0; i<p->locN-1; ++i)
if( p->loc[i].evtIdx <= scoreIndex && scoreIndex < p->loc[i+1].evtIdx )
break;
// force scEvtIndex to be valid
assert( i<p->locN );
p->sri = i;
if( p->loc[i].scIdx <= scoreIndex && scoreIndex < p->loc[i+1].scIdx )
{
p->sbi = i;
// score event window is dBar bars before and after scEvtIndex;
int dBar = 1;
// backup dBar bars from the 'scoreIndex'
for(; i>=0; --i)
if( p->loc[i].barNumb >= (p->loc[p->sri].barNumb-dBar) )
p->sbi = i;
else
break;
}
dBar = 3;
// move forward dBar bars from 'scoreIndex'
for(i=p->sri; i<p->locN; ++i)
if( p->loc[i].barNumb <= (p->loc[p->sri].barNumb+dBar) )
// locate the score element at the end of the look-ahead region
for(; i<p->locN-1; ++i)
if( p->loc[i].scIdx <= scoreIndex + p->msln && scoreIndex + p->msln < p->loc[i+1].scIdx )
{
p->sei = i;
else
break;
}
return cmOkRC;
}
@ -244,7 +232,7 @@ int _cmScFolDist(unsigned mtxMaxN, unsigned* m, const unsigned* s1, const cmScFo
return v;
}
/*
unsigned cmScFolExec( cmScFol* p, unsigned smpIdx, unsigned status, cmMidiByte_t d0, cmMidiByte_t d1 )
{
assert( p->sri != cmInvalidIdx );
@ -266,7 +254,8 @@ unsigned cmScFolExec( cmScFol* p, unsigned smpIdx, unsigned status, cmMidiByt
int en = 0;
for(; i>=0; --i,++en)
{
if( p->wndV[i].validFl /*&& ((smpIdx-p->wnd[i].smpIdx)<=maxWndSmp)*/)
//if( p->wndV[i].validFl && ((smpIdx-p->wnd[i].smpIdx)<=maxWndSmp))
if( p->wndV[i].validFl )
ewnd[i] = p->wndV[i].val;
else
break;
@ -306,7 +295,8 @@ unsigned cmScFolExec( cmScFol* p, unsigned smpIdx, unsigned status, cmMidiByt
// a successful match has <= allowedMissCnt and an exact match on the last element
//if( dist <= p->allowedMissCnt && ewnd[p->wndN-1] == p->loc[p->sbi+minIdx+en-1] )
if( /*dist <= p->allowedMissCnt &&*/ _cmScFolIsMatch(p->loc+(p->sbi+minIdx+en-1),ewnd[p->wndN-1]))
//if( dist <= p->allowedMissCnt && _cmScFolIsMatch(p->loc+(p->sbi+minIdx+en-1),ewnd[p->wndN-1]))
if( _cmScFolIsMatch(p->loc+(p->sbi+minIdx+en-1),ewnd[p->wndN-1]))
{
p->sbi = p->sbi + minIdx;
p->sei = cmMin(p->sei+minIdx,p->locN-1);
@ -317,3 +307,96 @@ unsigned cmScFolExec( cmScFol* p, unsigned smpIdx, unsigned status, cmMidiByt
return ret_idx;
}
*/
unsigned cmScFolExec( cmScFol* p, unsigned smpIdx, unsigned status, cmMidiByte_t d0, cmMidiByte_t d1 )
{
unsigned ret_idx = cmInvalidIdx;
unsigned ebuf[ p->bufN ];
if( status != kNoteOnMdId && d1>0 )
return ret_idx;
// left shift bufV[] to make the right-most element available - then copy in the new element
memmove(p->bufV, p->bufV+1, sizeof(cmScFolBufEle_t)*(p->bufN-1));
p->bufV[ p->bufN-1 ].smpIdx = smpIdx;
p->bufV[ p->bufN-1 ].val = d0;
p->bufV[ p->bufN-1 ].validFl= true;
// fill in ebuf[] with the valid values in bufV[]
int i = p->bufN-1;
int en = 0;
for(; i>=0; --i,++en)
{
if( p->bufV[i].validFl)
ebuf[i] = p->bufV[i].val;
else
break;
}
++i; // increment i to the first valid element in ebuf[].
// en is the count of valid elements in ebuf[].
// ebuf[p->boi] is the first valid element
int j = 0;
int minDist = INT_MAX;
int minIdx = cmInvalidIdx;
int dist;
// the score wnd must always be as long as the buffer n
// at the end of the score this may not be the case
// (once sei hits locN - at this point we must begin
// shrinking ewnd[] to contain only the last p->sei-p->sbi+1 elements)
assert( p->sei-p->sbi+1 >= en );
for(j=0; p->sbi+en+j <= p->sei; ++j)
if((dist = _cmScFolDist(p->bufN, p->edWndMtx, ebuf+i, p->loc + p->sbi+j, en )) < minDist )
{
minDist = dist;
minIdx = j;
}
// The best fit is on the score window: p->loc[sbi+minIdx : sbi+minIdx+en-1 ]
// if a perfect match occurred
if( minDist == 0 )
{
// we had a perfect match - shrink the window to it's minumum size
p->sbi += (en==p->bufN) ? minIdx + 1 : 0; // move wnd begin forward to just past first match
p->sei = p->sbi + minIdx + en + p->msln; // move wnd end forward to just past last match
ret_idx = p->sbi + minIdx + en - 1;
// BUG BUG BUG - is the window length valid -
// - sbi and sei must be inside 0:locN
// - sei-sbi + 1 must be >= en
}
else
{
// if the last event matched - then return the match location as the current score location
if( _cmScFolIsMatch(p->loc+(p->sbi+minIdx+en-1),ebuf[p->bufN-1]) )
ret_idx = p->sbi + minIdx + en - 1;
// even though we didn't match move the end of the score window forward
// this will enlarge the score window by one
p->sei += 1;
assert( p->sei > p->sbi );
// if the score window length surpasses the max score window size
// move the beginning index forward
if( p->sei - p->sbi + 1 > p->mswn && p->sei > p->mswn )
p->sbi = p->sei - p->mswn + 1;
// BUG BUG BUG - is the window length valid -
// - sbi and sei must be inside 0:locN
// - sei-sbi + 1 must be >= en
}
// BUG BUG BUG - this is not currently guarded against
assert( p->sei < p->locN );
assert( p->sbi < p->locN );
return ret_idx;
}

37
cmProc4.h
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@ -13,17 +13,17 @@ typedef struct
cmMidiByte_t val; //
bool validFl; //
} cmScFolWndEle_t;
} cmScFolBufEle_t;
typedef struct
{
unsigned pitchCnt; //
unsigned* pitchV; // pitchV[pitchCnt]
unsigned evtIdx; // index of the score event (into cmScoreEvt[]) at this location
unsigned scIdx; // index of the score event (into cmScoreEvt[]) at this location
int barNumb; // bar number of this location
} cmScFolLoc_t;
/*
typedef struct
{
cmObj obj;
@ -44,14 +44,37 @@ typedef struct
unsigned* edWndMtx;
} cmScFol1;
*/
typedef struct
{
cmObj obj;
cmReal_t srate; //
cmScH_t scH; // score handle
unsigned bufN; // event buffer count
cmScFolBufEle_t* bufV; // event buffer bufV[bufN] - bufV[bufN-1] newest event, bufV[boi] oldest event
int locN; // count of score locations
cmScFolLoc_t* loc; // score loc[locN]
unsigned sbi; // oldest score window index
unsigned sei; // newest score window index
unsigned msln; // minimum score look ahead count
unsigned mswn; // maximum score window length
//unsigned evalWndN; // (dflt:5) count of elements to use for refined match window
//unsigned allowedMissCnt; // (dflt:1) count of non-match elements in refined match where a match is still signaled
unsigned* edWndMtx;
} cmScFol;
// wndN = max count of elements in the score following window.
// wndMs = max length of the score following window in time
cmScFol* cmScFolAlloc( cmCtx* ctx, cmScFol* p, cmReal_t srate, unsigned wndN, cmReal_t wndMs, cmScH_t scH );
// wndN = max count of elements in the score following window.
// wndMs = max length of the score following window in time
cmScFol* cmScFolAlloc( cmCtx* ctx, cmScFol* p, cmReal_t srate, unsigned bufN, cmReal_t wndMs, cmScH_t scH );
cmRC_t cmScFolFree( cmScFol** pp );
cmRC_t cmScFolInit( cmScFol* p, cmReal_t srate, unsigned wndN, cmReal_t wndMs, cmScH_t scH );
cmRC_t cmScFolInit( cmScFol* p, cmReal_t srate, unsigned bufN, cmReal_t wndMs, cmScH_t scH );
cmRC_t cmScFolFinal( cmScFol* p );
cmRC_t cmScFolReset( cmScFol* p, unsigned scoreIndex );
unsigned cmScFolExec( cmScFol* p, unsigned smpIdx, unsigned status, cmMidiByte_t d0, cmMidiByte_t d1 );

1
dsp/cmDspBuiltIn.c
View File

@ -4992,6 +4992,7 @@ cmDspClassConsFunc_t _cmDspClassBuiltInArray[] =
cmTimeLineClassCons,
cmMidiFilePlayClassCons,
cmScFolClassCons,
NULL,
};

2
dsp/cmDspKr.c
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@ -686,11 +686,13 @@ cmDspRC_t _cmDspScFolRecv(cmDspCtx_t* ctx, cmDspInst_t* inst, const cmDspEvt_t*
switch( evt->dstVarId )
{
case kIndexSfId:
if( cmScoreIsValid(p->scH) )
if( cmScFolReset( p->sfp, cmDspUInt(inst,kIndexSfId) ) != cmOkRC )
cmErrMsg(&inst->classPtr->err, kSubSysFailDspRC, "Score follower reset to score index '%i' failed.");
break;
case kStatusSfId:
if( cmScoreIsValid(p->scH))
{
unsigned idx = cmScFolExec(p->sfp, ctx->cycleCnt, cmDspUInt(inst,kStatusSfId), cmDspUInt(inst,kD0SfId), cmDspUInt(inst,kD1SfId));
if( idx != cmInvalidIdx )

1
dsp/cmDspKr.h
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@ -8,6 +8,7 @@ extern "C" {
struct cmDspClass_str* cmKrClassCons( cmDspCtx_t* ctx );
struct cmDspClass_str* cmTimeLineClassCons( cmDspCtx_t* ctx );
struct cmDspClass_str* cmMidiFilePlayClassCons( cmDspCtx_t* ctx );
struct cmDspClass_str* cmScFolClassCons( cmDspCtx_t* ctx );
#ifdef __cplusplus
}

2
dsp/cmDspPgmKr.c
View File

@ -39,7 +39,7 @@ cmDspRC_t _cmDspSysPgm_TimeLine(cmDspSysH_t h, void** userPtrPtr )
cmDspRC_t rc = kOkDspRC;
const cmChar_t* tlFn = "/home/kevin/src/cmgv/src/gv/data/tl7.js";
const cmChar_t* audPath = "/home/kevin/media/audio/20110723-Kriesberg/Audio Files";
const cmChar_t* scFn = "/home/kevin/src/cmgv/src/gv/data/mod2.csv";
const cmChar_t* scFn = "/home/kevin/src/cmgv/src/gv/data/mod2b.txt";
cmDspInst_t* sci = cmDspSysAllocInst(h,"Scalar", "ScIdx", 5, kNumberDuiId, 0.0, 10000.0, 1.0, 0.0);