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cmDspBuiltIn.c : The AudioFileOut object no longer creates an output

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file when the object is created. It now waits until it is sent an
'open' symbol to create the audio output file.

If the AudioFileOut object is sent a directory rather than a file then
it automatically generates a file name in the given directory.
This commit is contained in:
kevin 2013-09-28 12:39:43 -07:00
parent a4a2b601a9
commit 9567d9211d
1 changed files with 22 additions and 4 deletions
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24
dsp/cmDspBuiltIn.c
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@ -1474,6 +1474,7 @@ typedef struct
cmAudioFileH_t afH;
unsigned openSymId;
unsigned closeSymId;
const cmChar_t* afn;
} cmDspAudioFileOut_t;
cmDspRC_t _cmDspAudioFileOutCreateFile( cmDspCtx_t* ctx, cmDspInst_t* inst, unsigned chCnt )
@ -1485,6 +1486,17 @@ cmDspRC_t _cmDspAudioFileOutCreateFile( cmDspCtx_t* ctx, cmDspInst_t* inst, unsi
if(cmAudioFileIsValid(p->afH) )
cmAudioFileDelete(&p->afH);
// if the supplied audio file name is actually a directory name then generate a file name
if( cmFsIsDir(fn) )
{
cmMemPtrFree(&p->afn);
if( cmFsGenFn(fn,"recd","aiff",&p->afn) != kOkFsRC )
return cmDspInstErr(ctx,&p->inst,kFileSysFailDspRC,"An output audio file name could not be generated.");
fn = p->afn;
}
if( cmAudioFileIsValid(p->afH = cmAudioFileNewCreate(fn, cmDspSampleRate(ctx), p->bits, chCnt, &rc, ctx->rpt )) == false )
rc = cmDspClassErr(ctx,inst->classPtr,kVarArgParseFailDspRC,"The output audio file '%s' create failed.",fn);
@ -1495,7 +1507,7 @@ cmDspInst_t* _cmDspAudioFileOutAlloc(cmDspCtx_t* ctx, cmDspClass_t* classPtr, u
{
cmDspVarArg_t args[] =
{
{ "fn", kFnAofId, 0, 0, kInDsvFl | kStrzDsvFl | kReqArgDsvFl, "Audio file name"},
{ "fn", kFnAofId, 0, 0, kInDsvFl | kStrzDsvFl | kReqArgDsvFl, "Audio file or directory name"},
{ "chs", kChCntAofId, 0, 0, kInDsvFl | kUIntDsvFl | kReqArgDsvFl, "Channel count"},
{ "gain0", kGain0AofId, 0, 0, kInDsvFl | kDoubleDsvFl | kOptArgDsvFl, "Output gain 0 multiplier"},
{ "gain1", kGain1AofId, 0, 0, kInDsvFl | kDoubleDsvFl | kOptArgDsvFl, "Output gain 1 multiplier"},
@ -1534,7 +1546,7 @@ cmDspRC_t _cmDspAudioFileOutReset(cmDspCtx_t* ctx, cmDspInst_t* inst, const cmDs
p->smpCnt = cmDspSamplesPerCycle(ctx) * chCnt;
p->smpBuf = cmLhResizeN(ctx->lhH, cmSample_t, p->smpBuf, p->smpCnt);
rc = _cmDspAudioFileOutCreateFile( ctx, inst, chCnt );
//rc = _cmDspAudioFileOutCreateFile( ctx, inst, chCnt );
return rc;
}
@ -1548,6 +1560,10 @@ cmDspRC_t _cmDspAudioFileOutExec(cmDspCtx_t* ctx, cmDspInst_t* inst, const cmDsp
cmSample_t* chArray[chCnt];
unsigned i,j;
if(!cmAudioFileIsValid(p->afH) )
return rc;
for(i=0,j=0; i<chCnt; ++i)
{
unsigned chVarId = i == 0 ? kIn0AofId : kIn1AofId; // get audio buf var id for this ch
@ -1561,7 +1577,7 @@ cmDspRC_t _cmDspAudioFileOutExec(cmDspCtx_t* ctx, cmDspInst_t* inst, const cmDsp
{
cmSample_t gain = cmDspSample(inst,i==0?kGain0AofId:kGain1AofId); // get ch gain
chArray[j] = cmDspAudioBuf(ctx,inst,chVarId,i); // get incoming audio buf ptr
chArray[j] = cmDspAudioBuf(ctx,inst,chVarId,0); // get incoming audio buf ptr
if( gain != 1.0 )
cmVOS_MultVVS(chArray[j], iSmpCnt, chArray[j], gain); // apply gain
@ -1625,6 +1641,8 @@ cmDspRC_t _cmDspAudioFileOutFree( cmDspCtx_t* ctx, struct cmDspInst_str* inst,
if(cmAudioFileIsValid(p->afH) )
cmAudioFileDelete(&p->afH);
cmMemPtrFree(&p->afn);
return kOkDspRC;
}