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cmTimeLine.h/c Added cmTimeLineSeqToLocalSampleIndex()

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This commit is contained in:
kevin 2012-11-17 17:31:11 -08:00
parent 0e06db1593
commit bf8fceead1
2 changed files with 20 additions and 11 deletions
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28
app/cmTimeLine.c
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@ -635,9 +635,9 @@ cmTlRC_t _cmTlProcMidiFile( _cmTl_t* p, _cmTlObj_t* op, cmMidiFileH_t mfH )
unsigned mn = cmMidiFileMsgCount(mfH);
const cmMidiTrackMsg_t** mapp = cmMidiFileMsgArray(mfH);
unsigned mi = 0;
double accum = 0;
//double accum = 0;
_cmTlObj_t* refOp = op;
bool fl = false;
//bool fl = false;
unsigned dtick = 0;
mfp->noteOnCnt = 0;
@ -649,16 +649,16 @@ cmTlRC_t _cmTlProcMidiFile( _cmTl_t* p, _cmTlObj_t* op, cmMidiFileH_t mfH )
dtick = mp->dtick;
if( fl )
{
dtick = 0;
fl = mp->dtick == 0;
}
//if( fl )
//{
// dtick = 0;
// fl = mp->dtick == 0;
//}
accum += dtick * p->srate / 1000000;
//accum += dtick * p->srate / 1000000;
//int begSmpIdx = floor(accum_micros * p->srate / 1000000);
int begSmpIdx = floor( dtick * p->srate / 1000000 );
int begSmpIdx = dtick; //floor( dtick * p->srate / 1000000.0 );
int durSmpCnt = 0;
unsigned midiTrkMsgByteCnt = cmMidiFilePackTrackMsgBufByteCount( mp );
unsigned recdByteCnt = sizeof(cmTlMidiEvt_t) + midiTrkMsgByteCnt;
@ -669,7 +669,8 @@ cmTlRC_t _cmTlProcMidiFile( _cmTl_t* p, _cmTlObj_t* op, cmMidiFileH_t mfH )
// count the note-on messages
if( mp->status == kNoteOnMdId )
{
durSmpCnt = floor(mp->u.chMsgPtr->durTicks * p->srate / 1000000 );
//durSmpCnt = floor(mp->u.chMsgPtr->durTicks * p->srate / 1000000.0 );
durSmpCnt = mp->u.chMsgPtr->durTicks;
++mfp->noteOnCnt;
}
@ -727,7 +728,7 @@ cmTlRC_t _cmTlAllocMidiFileRecd( _cmTl_t* p, const cmChar_t* nameStr, const cmCh
unsigned durSmpCnt = floor(cmMidiFileDurSecs(mfH)*p->srate);
// convert the midi file from ticks to microseconds
cmMidiFileTickToMicros(mfH);
cmMidiFileTickToSamples(mfH,p->srate,false);
// assign note durations to all note-on msg's
cmMidiFileCalcNoteDurations(mfH);
@ -957,6 +958,11 @@ double cmTimeLineSampleRate( cmTlH_t h )
return p->srate;
}
int cmTimeLineSeqToLocalSampleIndex( int seqSmpIdx, cmTlObj_t* localObjPtr )
{
return seqSmpIdx - localObjPtr->seqSmpIdx;
}
cmTlObj_t* _cmTimeLineIdToObj( _cmTl_t* p, unsigned seqId, unsigned id )
{
assert( seqId < p->seqCnt );

3
app/cmTimeLine.h
View File

@ -111,6 +111,9 @@ extern "C" {
bool cmTimeLineIsValid( cmTlH_t h );
double cmTimeLineSampleRate( cmTlH_t h );
// Convert global (sequence) time to a time relative to an object.
int cmTimeLineSeqToLocalSampleIndex( int seqSmpIdx, cmTlObj_t* localObjPtr );
// Given cmTlObj_t.uid return a pointer to the associated record.
// seqId is optional (dflt:cmInvalidId)
cmTlObj_t* cmTimeLineIdToObj( cmTlH_t h, unsigned seqId, unsigned uid );