cwFileOps.h/cpp: Added fade in/out fucnctionality to selectToFile().
This commit is contained in:
kevin
parent
8a36583630
commit
c2409ca4be
@ -12,6 +12,155 @@
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#include "cwVectOps.h"
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#include "cwDsp.h"
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namespace cw
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{
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namespace afop
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{
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typedef struct _cutMixArg_str
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{
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const cutMixArg_t* arg;
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char* srcFn;
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unsigned srcFrmIdx;
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unsigned srcFrmN;
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unsigned srcFadeInFrmN;
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unsigned srcFadeOutFrmN;
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unsigned dstFrmIdx;
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audiofile::handle_t afH;
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audiofile::info_t afInfo;
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} _cutMixArg_t;
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rc_t _cutAndMixOpen( const char* srcDir, const cutMixArg_t* argL, _cutMixArg_t* xArgL, unsigned argN, unsigned& chN_Ref, double& srate_Ref, unsigned& dstFrmN_Ref, unsigned& maxSrcFrmN_Ref )
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{
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rc_t rc = kOkRC;
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maxSrcFrmN_Ref = 0;
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chN_Ref = 0;
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for(unsigned i = 0; i<argN; ++i)
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{
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// create the source audio file name
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xArgL[i].srcFn = filesys::makeFn(srcDir, argL[i].srcFn, NULL, NULL);
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// get the audio file info
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if((rc = audiofile::open( xArgL[i].afH, xArgL[i].srcFn, &xArgL[i].afInfo )) != kOkRC )
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{
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rc = cwLogError(rc, "Unable to obtain info for the source audio file: '%s'.", cwStringNullGuard(xArgL[i].srcFn));
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goto errLabel;
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}
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// get the system sample rate from the first file
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if( i == 0 )
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srate_Ref = xArgL[i].afInfo.srate;
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// if the file sample rate does not match the system sample rate
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if( srate_Ref != xArgL[i].afInfo.srate )
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{
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rc = cwLogError(kInvalidArgRC,"'%s' sample rate %f does not match the system sample rate %f.", xArgL[i].srcFn, xArgL[i].afInfo.srate, srate_Ref );
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goto errLabel;
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}
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// verify the source file begin/end time
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if( argL[i].srcBegSec > argL[i].srcEndSec )
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{
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rc = cwLogError(kInvalidArgRC,"The end time is prior to the begin time on source file '%s'.", xArgL[i].srcFn);
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goto errLabel;
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}
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xArgL[i].arg = argL + i;
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xArgL[i].srcFrmIdx = floor(argL[i].srcBegSec * srate_Ref);
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xArgL[i].srcFrmN = floor(argL[i].srcEndSec * srate_Ref) - xArgL[i].srcFrmIdx;
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xArgL[i].srcFadeInFrmN = floor(argL[i].srcBegFadeSec * srate_Ref);
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xArgL[i].srcFadeOutFrmN = floor(argL[i].srcEndFadeSec * srate_Ref);
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xArgL[i].dstFrmIdx = floor(argL[i].dstBegSec * srate_Ref);
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//printf("cm beg:%f end:%f dst:%f gain:%f %s\n", argL[i].srcBegSec, argL[i].srcEndSec, argL[i].dstBegSec, argL[i].gain, argL[i].srcFn );
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chN_Ref = std::max( chN_Ref, xArgL[i].afInfo.chCnt );
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maxSrcFrmN_Ref = std::max( maxSrcFrmN_Ref, xArgL[i].srcFrmN );
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dstFrmN_Ref = std::max( dstFrmN_Ref, xArgL[i].dstFrmIdx + xArgL[i].srcFrmN );
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}
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errLabel:
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return rc;
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}
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rc_t _cutAndMixClose( _cutMixArg_t* xArgL, unsigned argN )
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{
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rc_t rc = kOkRC;
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for(unsigned i = 0; i<argN; ++i)
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{
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if((rc = audiofile::close( xArgL[i].afH )) != kOkRC )
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{
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rc = cwLogError(kOpFailRC,"'%s' file closed.", xArgL[i].srcFn );
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goto errLabel;
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}
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mem::release( xArgL[i].srcFn );
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}
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errLabel:
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return rc;
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}
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enum { kLinearFadeFl = 0x01, kEqualPowerFadeFl=0x02, kFadeInFl=0x04, kFadeOutFl=0x08 };
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void _fadeOneChannel( float* xV, unsigned frmN, unsigned fadeFrmN, unsigned flags )
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{
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int i0,d,offs;
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if( cwIsFlag(flags,kFadeInFl ) )
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{
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// count forward
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i0 = 0;
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d = 1;
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offs = 0;
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}
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else
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{
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// count backward
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i0 = (int)fadeFrmN;
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d = -1;
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offs = frmN-fadeFrmN;
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}
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// do a linear fade
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if( cwIsFlag(flags,kLinearFadeFl) )
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{
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for(int i = i0,j=0; j<(int)fadeFrmN; i+=d,++j )
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{
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assert(0 <= offs+j && offs+j < (int)frmN );
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xV[offs+j] *= ((float)i) / fadeFrmN;
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}
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}
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else // do an equal power fade
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{
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for(int i = i0,j=0; j<(int)fadeFrmN; i+=d,++j )
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{
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assert(0 <= offs+j && offs+j < (int)frmN );
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xV[offs+j] *= std::sqrt(((float)i) / fadeFrmN);
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}
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}
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}
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void _fadeAllChannels( float* chBufL[], unsigned chN, unsigned frmN, unsigned fadeFrmN, unsigned flags )
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{
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fadeFrmN = std::min(frmN,fadeFrmN);
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for(unsigned i=0; i<chN; ++i)
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_fadeOneChannel(chBufL[i],frmN,fadeFrmN,flags);
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}
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}
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}
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cw::rc_t cw::afop::sine( const char* fn, double srate, unsigned bits, double hz, double gain, double secs )
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{
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rc_t rc = kOkRC;
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@ -230,7 +379,7 @@ cw::rc_t cw::afop::mix( const object_t* cfg )
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return rc;
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}
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cw::rc_t cw::afop::selectToFile( const char* srcFn, double begSec, double endSec, unsigned outBits, const char* outDir, const char* outFn )
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cw::rc_t cw::afop::selectToFile( const char* srcFn, double beg0Sec, double beg1Sec, double end0Sec, double end1Sec, unsigned outBits, const char* outDir, const char* outFn )
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{
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rc_t rc = kOkRC;
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char* iFn = filesys::expandPath(srcFn);
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@ -240,62 +389,93 @@ cw::rc_t cw::afop::selectToFile( const char* srcFn, double begSec, double endSe
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audiofile::handle_t iH;
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audiofile::handle_t oH;
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//
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if( beg1Sec < beg0Sec )
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{
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rc = cwLogError(kInvalidArgRC,"Invalid fade in time selection. Begin fade time (%f) is greater than end fade time (%f). ", beg0Sec, beg1Sec );
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goto errLabel;
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}
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//
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if( end1Sec != -1 && end1Sec < end0Sec )
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{
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rc = cwLogError(kInvalidArgRC,"Invalid fade out time selection. Begin fade time (%f) is greater than end fade time (%f). ", end0Sec, end1Sec );
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goto errLabel;
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}
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//
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if( beg1Sec > end0Sec )
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{
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rc = cwLogError(kInvalidArgRC,"Invalid time selection. Begin time (%f) is greater than end time (%f). ", beg1Sec, end0Sec );
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goto errLabel;
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}
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// open the source file
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if((rc = audiofile::open( iH, iFn, &info )) != kOkRC )
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goto errLabel;
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//
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if( begSec >= endSec )
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{
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rc = cwLogError(kInvalidArgRC,"Invalid time selection. Begin time (%f) is greater than end time (%f). ", begSec, endSec );
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goto errLabel;
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}
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// create the output file
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if((rc = audiofile::create( oH, oFn, info.srate, outBits, info.chCnt)) != kOkRC )
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goto errLabel;
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else
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{
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unsigned begFrmIdx = (unsigned)floor(begSec * info.srate);
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unsigned endFrmIdx = endSec==-1 ? info.frameCnt : (unsigned)floor(endSec * info.srate);
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unsigned ttlFrmN = endFrmIdx - begFrmIdx;
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unsigned beg0FrmIdx = (unsigned)floor(beg0Sec * info.srate);
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unsigned beg1FrmIdx = (unsigned)floor(beg1Sec * info.srate);
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unsigned end0FrmIdx = (unsigned)floor(end0Sec * info.srate);
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unsigned end1FrmIdx = end1Sec==-1 ? info.frameCnt : (unsigned)floor(end1Sec * info.srate);
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unsigned ttlFrmN = end1FrmIdx - beg0FrmIdx;
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unsigned actualBufFrmN = 0;
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const unsigned bufFrmN = 8196; // read/write buffer size
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float buf[ bufFrmN*info.chCnt ];
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float* chBuf[ info.chCnt ];
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beg0FrmIdx = std::max(0u,std::min(beg0FrmIdx,info.frameCnt));
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beg1FrmIdx = std::max(0u,std::min(beg1FrmIdx,info.frameCnt));
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end0FrmIdx = std::max(0u,std::min(end0FrmIdx,info.frameCnt));
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end1FrmIdx = std::max(0u,std::min(end1FrmIdx,info.frameCnt));
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cwLogInfo("beg:%f %f end: %f %f : src:%s dst:%s", beg0Sec,beg1Sec,end0Sec,end1Sec,iFn,oFn);
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// Seek to the start of the read location
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if((rc = audiofile::seek( iH, beg0FrmIdx )) != kOkRC )
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goto errLabel;
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// set up the read/write channel buffer
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for(unsigned i = 0; i<info.chCnt; ++i)
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chBuf[i] = buf + i*bufFrmN;
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chBuf[i] = mem::alloc<float>(ttlFrmN);
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// seek to first frame
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if((rc = audiofile::seek(iH,begFrmIdx)) != kOkRC )
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goto errLabel;
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// for each read/write buffer in the selected region
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for(unsigned curFrmN=0; curFrmN<ttlFrmN; curFrmN += actualBufFrmN )
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// read the audio file
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if((rc = audiofile::readFloat( iH, ttlFrmN, 0, info.chCnt, chBuf, &actualBufFrmN)) != kOkRC )
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{
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rc = cwLogError(kOpFailRC,"Read failed on file '%s'.", iFn );
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goto errLabel;
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}
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// read a buffer of audio from the source.
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if((rc = audiofile::readFloat( iH, bufFrmN, 0, info.chCnt, chBuf, &actualBufFrmN)) != kOkRC )
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{
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rc = cwLogError(kOpFailRC,"Read failed on source '%s'.", iFn );
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goto errLabel;
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}
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// if this buffer would write more frames than the total frame count
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// then decrease the count of samples in chBuf[]
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if( curFrmN + actualBufFrmN > ttlFrmN )
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actualBufFrmN -= ttlFrmN - curFrmN;
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// write the buffer to the output file
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if((rc = audiofile::writeFloat(oH, actualBufFrmN, info.chCnt, chBuf )) != kOkRC )
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{
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rc = cwLogError(kOpFailRC,"Write failed on output file '%s'.", oFn );
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goto errLabel;
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}
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}
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// if there is a fade-in then generate it
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if( beg1FrmIdx > beg0FrmIdx )
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_fadeAllChannels( chBuf, info.chCnt, ttlFrmN, beg1FrmIdx-beg0FrmIdx, kLinearFadeFl | kFadeInFl );
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// if there is a fade-out then generate it
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if( end1FrmIdx > end0FrmIdx )
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{
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float* fadeChBuf[ info.chCnt ];
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for(unsigned i = 0; i<info.chCnt; ++i)
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fadeChBuf[i] = chBuf[i] + actualBufFrmN - (end1FrmIdx - end0FrmIdx);
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_fadeAllChannels( fadeChBuf, info.chCnt, ttlFrmN, end1FrmIdx-end0FrmIdx, kLinearFadeFl | kFadeOutFl );
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}
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// write the buffer to the output file
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if((rc = audiofile::writeFloat(oH, actualBufFrmN, info.chCnt, chBuf )) != kOkRC )
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{
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rc = cwLogError(kOpFailRC,"Write failed on output file '%s'.", oFn );
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goto errLabel;
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}
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}
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errLabel:
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@ -312,189 +492,71 @@ cw::rc_t cw::afop::selectToFile( const char* srcFn, double begSec, double endSe
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cw::rc_t cw::afop::selectToFile( const object_t* cfg )
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{
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rc_t rc = kOkRC;
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const object_t* selectL = nullptr;
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const char* oDir = nullptr;
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unsigned outBits = 16;
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rc_t rc = kOkRC;
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const object_t* selectL = nullptr;
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const char* oDir = nullptr;
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const char* src0Fn = nullptr;
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double fadeInSec = 0;
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double fadeOutSec = 0;
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bool fadeInPreFl = false;
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bool fadeOutPostFl = false;
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unsigned outBits = 16;
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// read the top level cfg record
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if((rc = cfg->getv("outDir",oDir,"outBits",outBits,"selectL",selectL)) != kOkRC )
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goto errLabel;
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goto errLabel;
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else
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{
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unsigned selN = selectL->child_count();
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for(unsigned i=0; i<selN; ++i)
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if((rc = cfg->getv_opt("srcFn",src0Fn,"fadeInSec",fadeInSec,"fadeOutSec",fadeOutSec,"fadeInPreFl",fadeInPreFl,"fadeOutPreFl",fadeOutPostFl)) != kOkRC )
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goto errLabel;
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else
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{
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double begSec = 0;
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double endSec = -1;
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const char* dstFn = nullptr;
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const char* srcFn = nullptr;
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unsigned selN = selectL->child_count();
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if((rc = selectL->child_ele(i)->getv("begSec",begSec,"endSec",endSec,"dst",dstFn, "src",srcFn)) != kOkRC )
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for(unsigned i=0; i<selN; ++i)
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{
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rc = cwLogError(kSyntaxErrorRC,"'Select to file' index %i syntax error.");
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goto errLabel;
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double begSec = 0;
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double endSec = -1;
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const char* dstFn = nullptr;
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const char* src1Fn = nullptr;
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if((rc = selectL->child_ele(i)->getv("begSec",begSec,"endSec",endSec,"dst",dstFn)) != kOkRC )
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{
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rc = cwLogError(kSyntaxErrorRC,"Argument error in 'select to file' index %i syntax error.");
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goto errLabel;
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}
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if((rc = selectL->child_ele(i)->getv_opt("src",src1Fn)) != kOkRC )
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{
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rc = cwLogError(kSyntaxErrorRC,"Optional argument parse error in 'select to file' index %i syntax error.");
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goto errLabel;
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}
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if( src0Fn == nullptr && src1Fn == nullptr )
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{
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rc = cwLogError(kInvalidArgRC,"selection at index %i does not have a source file.",i);
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goto errLabel;
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}
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double beg0Sec = fadeInPreFl ? std::max(0.0,begSec-fadeInSec) : begSec;
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double beg1Sec = fadeInPreFl ? begSec : begSec + fadeInSec;
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double end0Sec = fadeOutPostFl ? endSec : std::max(0.0,endSec - fadeOutSec);
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double end1Sec = fadeOutPostFl ? endSec+fadeOutSec : endSec;
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beg1Sec = std::max(beg0Sec,beg1Sec);
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end1Sec = std::max(end0Sec,end1Sec);
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if((rc = selectToFile( src1Fn==nullptr ? src0Fn : src1Fn, beg0Sec, beg1Sec, end0Sec, end1Sec, outBits, oDir, dstFn )) != kOkRC )
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goto errLabel;
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}
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if((rc = selectToFile( srcFn, begSec, endSec, outBits, oDir, dstFn )) != kOkRC )
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goto errLabel;
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}
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}
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errLabel:
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return rc;
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}
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namespace cw
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{
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namespace afop
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{
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typedef struct _cutMixArg_str
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{
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const cutMixArg_t* arg;
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char* srcFn;
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unsigned srcFrmIdx;
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unsigned srcFrmN;
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unsigned srcFadeInFrmN;
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unsigned srcFadeOutFrmN;
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unsigned dstFrmIdx;
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audiofile::handle_t afH;
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audiofile::info_t afInfo;
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} _cutMixArg_t;
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rc_t _cutAndMixOpen( const char* srcDir, const cutMixArg_t* argL, _cutMixArg_t* xArgL, unsigned argN, unsigned& chN_Ref, double& srate_Ref, unsigned& dstFrmN_Ref, unsigned& maxSrcFrmN_Ref )
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{
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rc_t rc = kOkRC;
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maxSrcFrmN_Ref = 0;
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chN_Ref = 0;
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for(unsigned i = 0; i<argN; ++i)
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{
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// create the source audio file name
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xArgL[i].srcFn = filesys::makeFn(srcDir, argL[i].srcFn, NULL, NULL);
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// get the audio file info
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if((rc = audiofile::open( xArgL[i].afH, xArgL[i].srcFn, &xArgL[i].afInfo )) != kOkRC )
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{
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rc = cwLogError(rc, "Unable to obtain info for the source audio file: '%s'.", cwStringNullGuard(xArgL[i].srcFn));
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goto errLabel;
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}
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// get the system sample rate from the first file
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if( i == 0 )
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srate_Ref = xArgL[i].afInfo.srate;
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// if the file sample rate does not match the system sample rate
|
||||
if( srate_Ref != xArgL[i].afInfo.srate )
|
||||
{
|
||||
rc = cwLogError(kInvalidArgRC,"'%s' sample rate %f does not match the system sample rate %f.", xArgL[i].srcFn, xArgL[i].afInfo.srate, srate_Ref );
|
||||
goto errLabel;
|
||||
}
|
||||
|
||||
// verify the source file begin/end time
|
||||
if( argL[i].srcBegSec > argL[i].srcEndSec )
|
||||
{
|
||||
rc = cwLogError(kInvalidArgRC,"The end time is prior to the begin time on source file '%s'.", xArgL[i].srcFn);
|
||||
goto errLabel;
|
||||
}
|
||||
|
||||
xArgL[i].arg = argL + i;
|
||||
xArgL[i].srcFrmIdx = floor(argL[i].srcBegSec * srate_Ref);
|
||||
xArgL[i].srcFrmN = floor(argL[i].srcEndSec * srate_Ref) - xArgL[i].srcFrmIdx;
|
||||
xArgL[i].srcFadeInFrmN = floor(argL[i].srcBegFadeSec * srate_Ref);
|
||||
xArgL[i].srcFadeOutFrmN = floor(argL[i].srcEndFadeSec * srate_Ref);
|
||||
xArgL[i].dstFrmIdx = floor(argL[i].dstBegSec * srate_Ref);
|
||||
|
||||
//printf("cm beg:%f end:%f dst:%f gain:%f %s\n", argL[i].srcBegSec, argL[i].srcEndSec, argL[i].dstBegSec, argL[i].gain, argL[i].srcFn );
|
||||
|
||||
|
||||
chN_Ref = std::max( chN_Ref, xArgL[i].afInfo.chCnt );
|
||||
maxSrcFrmN_Ref = std::max( maxSrcFrmN_Ref, xArgL[i].srcFrmN );
|
||||
|
||||
dstFrmN_Ref = std::max( dstFrmN_Ref, xArgL[i].dstFrmIdx + xArgL[i].srcFrmN );
|
||||
|
||||
}
|
||||
|
||||
errLabel:
|
||||
return rc;
|
||||
}
|
||||
|
||||
rc_t _cutAndMixClose( _cutMixArg_t* xArgL, unsigned argN )
|
||||
{
|
||||
rc_t rc = kOkRC;
|
||||
|
||||
for(unsigned i = 0; i<argN; ++i)
|
||||
{
|
||||
|
||||
if((rc = audiofile::close( xArgL[i].afH )) != kOkRC )
|
||||
{
|
||||
rc = cwLogError(kOpFailRC,"'%s' file closed.", xArgL[i].srcFn );
|
||||
goto errLabel;
|
||||
|
||||
}
|
||||
|
||||
mem::release( xArgL[i].srcFn );
|
||||
}
|
||||
|
||||
errLabel:
|
||||
return rc;
|
||||
}
|
||||
|
||||
enum { kLinearFadeFl = 0x01, kEqualPowerFadeFl=0x02, kFadeInFl=0x04, kFadeOutFl=0x08 };
|
||||
|
||||
void _fadeOneChannel( float* xV, unsigned frmN, unsigned fadeFrmN, unsigned flags )
|
||||
{
|
||||
int i0,d,offs;
|
||||
|
||||
if( cwIsFlag(flags,kFadeInFl ) )
|
||||
{
|
||||
// count forward
|
||||
i0 = 0;
|
||||
d = 1;
|
||||
offs = 0;
|
||||
}
|
||||
else
|
||||
{
|
||||
// count backward
|
||||
i0 = (int)fadeFrmN;
|
||||
d = -1;
|
||||
offs = frmN-fadeFrmN;
|
||||
}
|
||||
|
||||
// do a linear fade
|
||||
if( cwIsFlag(flags,kLinearFadeFl) )
|
||||
{
|
||||
for(int i = i0,j=0; j<(int)fadeFrmN; i+=d,++j )
|
||||
{
|
||||
assert(0 <= offs+j && offs+j < (int)frmN );
|
||||
xV[offs+j] *= ((float)i) / fadeFrmN;
|
||||
}
|
||||
}
|
||||
else // do an equal power fade
|
||||
{
|
||||
for(int i = i0,j=0; j<(int)fadeFrmN; i+=d,++j )
|
||||
{
|
||||
assert(0 <= offs+j && offs+j < (int)frmN );
|
||||
xV[offs+j] *= std::sqrt(((float)i) / fadeFrmN);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void _fadeAllChannels( float* chBufL[], unsigned chN, unsigned frmN, unsigned fadeFrmN, unsigned flags )
|
||||
{
|
||||
fadeFrmN = std::min(frmN,fadeFrmN);
|
||||
|
||||
for(unsigned i=0; i<chN; ++i)
|
||||
_fadeOneChannel(chBufL[i],frmN,fadeFrmN,flags);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
cw::rc_t cw::afop::cutAndMix( const char* dstFn, unsigned dstBits, const char* srcDir, const cutMixArg_t* argL, unsigned argN )
|
||||
{
|
||||
|
||||
@ -21,7 +21,7 @@ namespace cw
|
||||
rc_t mix( const object_t* cfg );
|
||||
|
||||
// Copy a time selection to an audio output file.
|
||||
rc_t selectToFile( const char* srcFn, double begSec, double endSec, unsigned outBits, const char* outDir, const char* outFn );
|
||||
rc_t selectToFile( const char* srcFn, double beg0Sec, double beg1Sec, double end0Sec, double end1Sec, unsigned outBits, const char* outDir, const char* outFn );
|
||||
rc_t selectToFile( const object_t* cfg );
|
||||
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user