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Diffstat (limited to 'htk_io/src/KaldiLib/Features.cc')
| -rw-r--r-- | htk_io/src/KaldiLib/Features.cc | 1798 |
1 files changed, 1798 insertions, 0 deletions
diff --git a/htk_io/src/KaldiLib/Features.cc b/htk_io/src/KaldiLib/Features.cc new file mode 100644 index 0000000..64b63e8 --- /dev/null +++ b/htk_io/src/KaldiLib/Features.cc @@ -0,0 +1,1798 @@ + +//enable feature repository profiling +#define PROFILING 1 + +#include <sstream> +#include <map> +#include <list> +#include <cstdio> + +#include "Features.h" +#include "Tokenizer.h" +#include "StkMatch.h" +#include "Types.h" + + + +namespace TNet +{ + const char + FeatureRepository:: + mpParmKindNames[13][16] = + { + {"WAVEFORM"}, + {"LPC"}, + {"LPREFC"}, + {"LPCEPSTRA"}, + {"LPDELCEP"}, + {"IREFC"}, + {"MFCC"}, + {"FBANK"}, + {"MELSPEC"}, + {"USER"}, + {"DISCRETE"}, + {"PLP"}, + {"ANON"} + }; + + //*************************************************************************** + //*************************************************************************** + + FileListElem:: + FileListElem(const std::string & rFileName) + { + std::string::size_type pos; + + mLogical = rFileName; + mWeight = 1.0; + + // some slash-backslash replacement hack + for (size_t i = 0; i < mLogical.size(); i++) { + if (mLogical[i] == '\\') { + mLogical[i] = '/'; + } + } + + // read sentence weight definition if any ( physical_file.fea[s,e]{weight} ) + if ((pos = mLogical.find('{')) != std::string::npos) + { + std::string tmp_weight(mLogical.begin() + pos + 1, mLogical.end()); + std::stringstream tmp_ss(tmp_weight); + + tmp_ss >> mWeight; + mLogical.erase(pos); + } + + // look for "=" symbol and if found, split it + if ((pos = mLogical.find('=')) != std::string::npos) + { + // copy all from mLogical[pos+1] till the end to mPhysical + mPhysical.assign(mLogical.begin() + pos + 1, mLogical.end()); + // erase all from pos + 1 till the end from mLogical + mLogical.erase(pos); + // trim the leading and trailing spaces + Trim(mPhysical); + Trim(mLogical); + } + else + { + // trim the leading and trailing spaces + Trim(mLogical); + + mPhysical = mLogical; + } + } + + + //########################################################################### + //########################################################################### + // FeatureRepository section + //########################################################################### + //########################################################################### + + //*************************************************************************** + //*************************************************************************** + void + FeatureRepository:: + ReadCepsNormFile( + const char * pFileName, + char ** pLastFileName, + BaseFloat ** vec_buff, + int sampleKind, + CNFileType type, + int coefs) + { + FILE* fp; + int i; + char s1[64]; + char s2[64]; + const char* typeStr = (type == CNF_Mean ? "MEAN" : + type == CNF_Variance ? "VARIANCE" : "VARSCALE"); + + const char* typeStr2 = (type == CNF_Mean ? "CMN" : + type == CNF_Variance ? "CVN" : "VarScale"); + + if (*pLastFileName != NULL && !strcmp(*pLastFileName, pFileName)) { + return; + } + free(*pLastFileName); + *pLastFileName=strdup(pFileName); + *vec_buff = (BaseFloat*) realloc(*vec_buff, coefs * sizeof(BaseFloat)); + + if (*pLastFileName == NULL || *vec_buff== NULL) + throw std::runtime_error("Insufficient memory"); + + if ((fp = fopen(pFileName, "r")) == NULL) { + throw std::runtime_error(std::string("Cannot open ") + typeStr2 + + " pFileName: '" + pFileName + "'"); + } + + if ((type != CNF_VarScale + && (fscanf(fp, " <%64[^>]> <%64[^>]>", s1, s2) != 2 + || strcmp(StrToUpper(s1), "CEPSNORM") + || ReadParmKind(s2, false) != sampleKind)) + || fscanf(fp, " <%64[^>]> %d", s1, &i) != 2 + || strcmp(StrToUpper(s1), typeStr) + || i != coefs) + { + ParmKind2Str(sampleKind, s2); + + //std::cout << "[[[TADY!!!!]]]" << pFileName << "\n" << std::flush; + + throw std::runtime_error(std::string("") + + (type == CNF_VarScale ? "" : "<CEPSNORM> <") + + (type == CNF_VarScale ? "" : s2) + + (type == CNF_VarScale ? "" : ">") + + " <" + typeStr + " ... expected in " + typeStr2 + + " file " + pFileName); + } + + for (i = 0; i < coefs; i++) { + if (fscanf(fp, " "FLOAT_FMT, *vec_buff+i) != 1) { + if (fscanf(fp, "%64s", s2) == 1) { + throw std::runtime_error(std::string("Decimal number expected but '") + + s2 + "' found in " + typeStr2 + " file " + pFileName); + } + else if (feof(fp)) { + throw std::runtime_error(std::string("Unexpected end of ") + + typeStr2 + " file "+ pFileName); + } + else { + throw std::runtime_error(std::string("Cannot read ") + typeStr2 + + " file " + pFileName); + } + } + + if (type == CNF_Variance) + (*vec_buff)[i] = BaseFloat(1 / sqrt((*vec_buff)[i])); + else if (type == CNF_VarScale) + (*vec_buff)[i] = BaseFloat(sqrt((*vec_buff)[i])); + } + + if (fscanf(fp, "%64s", s2) == 1) + { + throw std::runtime_error(std::string("End of file expected but '") + + s2 + "' found in " + typeStr2 + " file " + pFileName); + } + + fclose(fp); + } // ReadCepsNormFile(...) + + + //*************************************************************************** + //*************************************************************************** + void + FeatureRepository:: + HtkFilter(const char* pFilter, const char* pValue, FeatureRepository& rOut) + { + std::list<FileListElem>::iterator it; + std::string str; + + rOut.mSwapFeatures = mSwapFeatures; + rOut.mStartFrameExt = mStartFrameExt; + rOut.mEndFrameExt = mEndFrameExt; + rOut.mTargetKind = mTargetKind; + rOut.mDerivOrder = mDerivOrder; + rOut.mDerivWinLengths = mDerivWinLengths; + + rOut.mpCvgFile = mpCvgFile; + rOut.mpCmnPath = mpCmnPath; + rOut.mpCmnMask = mpCmnMask; + rOut.mpCvnPath = mpCvnPath; + rOut.mpCvnMask = mpCvnMask; + + rOut.mInputQueue.clear(); + + // go through all records and check the mask + for (it=mInputQueue.begin(); it!= mInputQueue.end(); ++it) { + if (pFilter == NULL + || (ProcessMask(it->Logical(), pFilter, str) && (str == pValue))) { + rOut.mInputQueue.push_back(*it); + } + } + + // set the queue position to the begining + rOut.mInputQueueIterator = mInputQueue.end(); + + rOut.mCurrentIndexFileName = ""; + rOut.mCurrentIndexFileDir = ""; + rOut.mCurrentIndexFileExt = ""; + + mStream.close(); + mStream.clear(); + + rOut.mpLastFileName = NULL; + rOut.mLastFileName = ""; + rOut.mpLastCmnFile = NULL; + rOut.mpLastCvnFile = NULL; + rOut.mpLastCvgFile = NULL; + rOut.mpCmn = NULL; + rOut.mpCvn = NULL; + rOut.mpCvg = NULL; + rOut.mpA = NULL; + rOut.mpB = NULL; + + } + + + //*************************************************************************** + //*************************************************************************** + void + FeatureRepository:: + HtkSelection(const char* pFilter, std::list< std::string >& rOut) + { + std::map< std::string, bool> aux_map; + std::map< std::string, bool>::iterator map_it; + std::list<FileListElem>::iterator it; + std::string str; + + rOut.clear(); + + if(pFilter != NULL) { + // go through all records and check the mask + for (it=mInputQueue.begin(); it!= mInputQueue.end(); ++it) { + if (ProcessMask(it->Logical(), pFilter, str)) { + aux_map[str] = true; + } + } + } else { + aux_map[std::string("default speaker")] = true; + } + + for (map_it = aux_map.begin(); map_it != aux_map.end(); ++map_it) { + rOut.push_back(map_it->first); + } + } + + + //*************************************************************************** + //*************************************************************************** + int + FeatureRepository:: + ParmKind2Str(unsigned parmKind, char *pOutString) + { + // :KLUDGE: Absolutely no idea what this is... + if ((parmKind & 0x003F) >= sizeof(mpParmKindNames)/sizeof(mpParmKindNames[0])) + return 0; + + strcpy(pOutString, mpParmKindNames[parmKind & 0x003F]); + + if (parmKind & PARAMKIND_E) strcat(pOutString, "_E"); + if (parmKind & PARAMKIND_N) strcat(pOutString, "_N"); + if (parmKind & PARAMKIND_D) strcat(pOutString, "_D"); + if (parmKind & PARAMKIND_A) strcat(pOutString, "_A"); + if (parmKind & PARAMKIND_C) strcat(pOutString, "_C"); + if (parmKind & PARAMKIND_Z) strcat(pOutString, "_Z"); + if (parmKind & PARAMKIND_K) strcat(pOutString, "_K"); + if (parmKind & PARAMKIND_0) strcat(pOutString, "_0"); + if (parmKind & PARAMKIND_V) strcat(pOutString, "_V"); + if (parmKind & PARAMKIND_T) strcat(pOutString, "_T"); + + return 1; + } + + + // //*************************************************************************** + // //*************************************************************************** + // void + // AddFileListToFeatureRepositories( + // const char* pFileName, + // const char* pFilter, + // std::queue<FeatureRepository *> &featureRepositoryList) + // { + // IStkStream l_stream; + // std::string file_name; + // Tokenizer file_list(pFileName, ","); + // Tokenizer::iterator p_file_name; + + // //:TODO: error if empty featureRepositoryList + // + // for (p_file_name = file_list.begin(); p_file_name != file_list.end(); ++p_file_name) + // { + // // get rid of initial and trailing blanks + // Trim(*p_file_name); + + // // open file name + // l_stream.open(p_file_name->c_str(), std::ios::in, pFilter); + // + // if (!l_stream.good()) { + // //:TODO: + // // Warning or error ... Why warning? -Lukas + // throw std::runtime_error(std::string("Cannot not open list file ") + + // *p_file_name); + // } + + // // read all lines and parse them + // for(;;) + // { + // l_stream >> file_name; + // //:TODO: if(l_stream.badl()) Error() + // // Reading after last token set the fail bit + // if(l_stream.fail()) + // break; + // // we can push_back a std::string as new FileListElem object + // // is created using FileListElem(const std::string&) constructor + // // and logical and physical names are correctly extracted + // featureRepositoryList.front()->mInputQueue.push_back(file_name); + // + // //cycle in the featureRepositoryList + // featureRepositoryList.push(featureRepositoryList.front()); + // featureRepositoryList.pop(); + // } + // l_stream.close(); + // } + // } // AddFileList(const std::string & rFileName) + + + //*************************************************************************** + //*************************************************************************** + void + FeatureRepository:: + Init( + bool swap, + int extLeft, + int extRight, + int targetKind, + int derivOrder, + int* pDerivWinLen, + const char* pCmnPath, + const char* pCmnMask, + const char* pCvnPath, + const char* pCvnMask, + const char* pCvgFile) + { + mSwapFeatures = swap; + mStartFrameExt = extLeft; + mEndFrameExt = extRight; + mTargetKind = targetKind; + mDerivOrder = derivOrder; + mDerivWinLengths = pDerivWinLen; + mpCmnPath = pCmnPath; + mpCmnMask = pCmnMask; + mpCvnPath = pCvnPath; + mpCvnMask = pCvnMask; + mpCvgFile = pCvgFile; + } // Init() + + + //*************************************************************************** + //*************************************************************************** + void + FeatureRepository:: + AddFile(const std::string & rFileName) + { + mInputQueue.push_back(rFileName); + } // AddFile(const std::string & rFileName) + + + //*************************************************************************** + //*************************************************************************** + void + FeatureRepository:: + AddFileList(const char* pFileName, const char* pFilter) + { + IStkStream l_stream; + std::string file_name; + Tokenizer file_list(pFileName, ","); + Tokenizer::iterator p_file_name; + + for (p_file_name = file_list.begin(); p_file_name != file_list.end(); ++p_file_name) + { + // get rid of spaces + Trim(*p_file_name); + + // open the file + l_stream.open(p_file_name->c_str(), std::ios::in, pFilter); + + if (!l_stream.good()) + { + //:TODO: + // Warning or error ... Why warning? -Lukas + throw std::runtime_error(std::string("Cannot not open list file ") + + *p_file_name); + } + // read all lines and parse them + for(;;) + { + l_stream >> file_name; + //:TODO: if(l_stream.badl()) Error() + // Reading after last token set the fail bit + if(l_stream.fail()) + break; + // we can push_back a std::string as new FileListElem object + // is created using FileListElem(const std::string&) constructor + // and logical and physical names are correctly extracted + mInputQueue.push_back(file_name); + } + l_stream.close(); + } + } // AddFileList(const std::string & rFileName) + + + //*************************************************************************** + //*************************************************************************** + void + FeatureRepository:: + MoveNext() + { + assert (mInputQueueIterator != mInputQueue.end()); + mInputQueueIterator++; + } // ReadFullMatrix(Matrix<BaseFloat>& rMatrix) + + + //*************************************************************************** + //*************************************************************************** + bool + FeatureRepository:: + ReadFullMatrix(Matrix<BaseFloat>& rMatrix) + { + // clear the matrix + rMatrix.Destroy(); + + // extract index file name + if (!mCurrentIndexFileDir.empty()) + { + char tmp_name[mCurrentIndexFileDir.length() + + mCurrentIndexFileExt.length() + + mInputQueueIterator->Physical().length()]; + + MakeHtkFileName(tmp_name, mInputQueueIterator->Physical().c_str(), + mCurrentIndexFileDir.c_str(), mCurrentIndexFileExt.c_str()); + + mCurrentIndexFileName = tmp_name; + } + else + mCurrentIndexFileName = ""; + + //get the 3-letter suffix + int pos_last_three_chars = mInputQueueIterator->Physical().size() - 3; + if (pos_last_three_chars < 0) pos_last_three_chars = 0; + //read the gzipped ascii features + if (mInputQueueIterator->Physical().substr(pos_last_three_chars) == ".gz") { + return ReadGzipAsciiFeatures(*mInputQueueIterator, rMatrix); + } + + // read the matrix and return the result + return ReadHTKFeatures(*mInputQueueIterator, rMatrix); + } // ReadFullMatrix(Matrix<BaseFloat>& rMatrix) + + + + //*************************************************************************** + //*************************************************************************** + bool + FeatureRepository:: + WriteFeatureMatrix(const Matrix<BaseFloat>& rMatrix, const std::string& filename, int targetKind, int samplePeriod) + { + FILE* fp = fopen(filename.c_str(),"w"); + if(NULL == fp) { Error(std::string("Cannot create file:") + filename); return false; } + + WriteHTKFeatures(fp, samplePeriod, targetKind, mSwapFeatures, const_cast<Matrix<BaseFloat>&>(rMatrix)); + + fclose(fp); + + return true; + } + + + //*************************************************************************** + //*************************************************************************** + // private: + int + FeatureRepository:: + ReadHTKHeader() + { + // TODO + // Change this... We should read from StkStream + FILE* fp = mStream.fp(); + + if (!fread(&mHeader.mNSamples, sizeof(INT_32), 1, fp)) return -1; + if (!fread(&mHeader.mSamplePeriod, sizeof(INT_32), 1, fp)) return -1; + if (!fread(&mHeader.mSampleSize, sizeof(INT_16), 1, fp)) return -1; + if (!fread(&mHeader.mSampleKind, sizeof(UINT_16), 1, fp)) return -1; + + if (mSwapFeatures) + { + swap4(mHeader.mNSamples); + swap4(mHeader.mSamplePeriod); + swap2(mHeader.mSampleSize); + swap2(mHeader.mSampleKind); + } + + if (mHeader.mSamplePeriod < 0 + || mHeader.mSamplePeriod > 1000000 + || mHeader.mNSamples < 0 + || mHeader.mSampleSize < 0) + { + return -1; + } + + return 0; + } + + + //*************************************************************************** + //*************************************************************************** + // private: + int + FeatureRepository:: + ReadHTKFeature( + BaseFloat* pIn, + size_t feaLen, + bool decompress, + BaseFloat* pScale, + BaseFloat* pBias) + { + FILE* fp = mStream.fp(); + + size_t i; + + if (decompress) + { + INT_16 s; + // BaseFloat pScale = (xmax - xmin) / (2*32767); + // BaseFloat pBias = (xmax + xmin) / 2; + + for (i = 0; i < feaLen; i++) + { + if (fread(&s, sizeof(INT_16), 1, fp) != 1) + return -1; + + if (mSwapFeatures) swap2(s); + pIn[i] = ((BaseFloat)s + pBias[i]) / pScale[i]; + } + + return 0; + } + +#if !DOUBLEPRECISION + if (fread(pIn, sizeof(FLOAT_32), feaLen, fp) != feaLen) + return -1; + + if (mSwapFeatures) + for (i = 0; i < feaLen; i++) + swap4(pIn[i]); +#else + float f; + + for (i = 0; i < feaLen; i++) + { + if (fread(&f, sizeof(FLOAT_32), 1, fp) != 1) + return -1; + + if (mSwapFeatures) + swap4(f); + + pIn[i] = f; + } +#endif + return 0; + } // int ReadHTKFeature + + + + //*************************************************************************** + //*************************************************************************** +/* bool + FeatureRepository:: + ReadHTKFeatures(const std::string& rFileName, Matrix<BaseFloat>& rFeatureMatrix) + { + std::string file_name(rFileName); + std::string cmn_file_name; + std::string cvn_file_name; + + int ext_left = mStartFrameExt; + int ext_right = mEndFrameExt; + int from_frame; + int to_frame; + int tot_frames; + int trg_vec_size; + int src_vec_size; + int src_deriv_order; + int lo_src_tgz_deriv_order; + int i; + int j; + int k; + int e; + int coefs; + int trg_E; + int trg_0; + int trg_N; + int src_E; + int src_0; + int src_N; + int comp; + int coef_size; + char* chptr; + + + + // read frame range definition if any ( physical_file.fea[s,e] ) + if ((chptr = strrchr(file_name.c_str(), '[')) == NULL || + ((i=0), sscanf(chptr, "[%d,%d]%n", &from_frame, &to_frame, &i), + chptr[i] != '\0')) + { + chptr = NULL; + } + + if (chptr != NULL) + *chptr = '\0'; + + // Experimental changes... + // if ((strcmp(file_name.c_str(), "-")) + // && (mpLastFileName != NULL) + // && (!strcmp(mpLastFileName, file_name.c_str()))) + // { + // mHeader = mLastHeader; + // } + // else + // { + // if (mpLastFileName) + // { + // //if (mpFp != stdin) + // // fclose(mpFp); + // mStream.close(); + // + // free(mpLastFileName); + // mpLastFileName = NULL; + // } + + if ((file_name != "-" ) + && (!mLastFileName.empty()) + && (mLastFileName == file_name)) + { + mHeader = mLastHeader; + } + else + { + if (!mLastFileName.empty()) + { + mStream.close(); + mLastFileName = ""; + } + + + // open the feature file + mStream.open(file_name.c_str(), ios::binary); + if (!mStream.good()) + { + Error("Cannot open feature file: '%s'", file_name.c_str()); + } + + + if (ReadHTKHeader()) + Error("Invalid HTK header in feature file: '%s'", file_name.c_str()); + + if (mHeader.mSampleKind & PARAMKIND_C) + { + // File is in compressed form, scale and pBias vectors + // are appended after HTK header. + + int coefs = mHeader.mSampleSize/sizeof(INT_16); + mpA = (BaseFloat*) realloc(mpA, coefs * sizeof(BaseFloat)); + mpB = (BaseFloat*) realloc(mpB, coefs * sizeof(BaseFloat)); + if (mpA == NULL || mpB == NULL) Error("Insufficient memory"); + + e = ReadHTKFeature(mpA, coefs, 0, 0, 0); + e |= ReadHTKFeature(mpB, coefs, 0, 0, 0); + + if (e) + Error("Cannot read feature file: '%s'", file_name.c_str()); + + mHeader.mNSamples -= 2 * sizeof(FLOAT_32) / sizeof(INT_16); + } + + // remember current settings + mLastFileName = file_name; + mLastHeader = mHeader; + } + + if (chptr != NULL) + *chptr = '['; + + if (chptr == NULL) + { // Range [s,e] was not specified + from_frame = 0; + to_frame = mHeader.mNSamples-1; + } + + src_deriv_order = PARAMKIND_T & mHeader.mSampleKind ? 3 : + PARAMKIND_A & mHeader.mSampleKind ? 2 : + PARAMKIND_D & mHeader.mSampleKind ? 1 : 0; + src_E = (PARAMKIND_E & mHeader.mSampleKind) != 0; + src_0 = (PARAMKIND_0 & mHeader.mSampleKind) != 0; + src_N = ((PARAMKIND_N & mHeader.mSampleKind) != 0) * (src_E + src_0); + comp = PARAMKIND_C & mHeader.mSampleKind; + + mHeader.mSampleKind &= ~PARAMKIND_C; + + if (mTargetKind == PARAMKIND_ANON) + { + mTargetKind = mHeader.mSampleKind; + } + else if ((mTargetKind & 077) == PARAMKIND_ANON) + { + mTargetKind &= ~077; + mTargetKind |= mHeader.mSampleKind & 077; + } + + trg_E = (PARAMKIND_E & mTargetKind) != 0; + trg_0 = (PARAMKIND_0 & mTargetKind) != 0; + trg_N =((PARAMKIND_N & mTargetKind) != 0) * (trg_E + trg_0); + + coef_size = comp ? sizeof(INT_16) : sizeof(FLOAT_32); + coefs = (mHeader.mSampleSize/coef_size + src_N) / + (src_deriv_order+1) - src_E - src_0; + src_vec_size = (coefs + src_E + src_0) * (src_deriv_order+1) - src_N; + + //Is coefs dividable by 1 + number of derivatives specified in header + if (src_vec_size * coef_size != mHeader.mSampleSize) + { + Error("Invalid HTK header in feature file: '%s'. " + "mSampleSize do not match with parmKind", file_name.c_str()); + } + + if (mDerivOrder < 0) + mDerivOrder = src_deriv_order; + + + if ((!src_E && trg_E) || (!src_0 && trg_0) || (src_N && !trg_N) || + (trg_N && !trg_E && !trg_0) || (trg_N && !mDerivOrder) || + (src_N && !src_deriv_order && mDerivOrder) || + ((mHeader.mSampleKind & 077) != (mTargetKind & 077) && + (mHeader.mSampleKind & 077) != PARAMKIND_ANON)) + { + char srcParmKind[64]; + char trgParmKind[64]; + + ParmKind2Str(mHeader.mSampleKind, srcParmKind); + ParmKind2Str(mTargetKind, trgParmKind); + Error("Cannot convert %s to %s", srcParmKind, trgParmKind); + } + + lo_src_tgz_deriv_order = LOWER_OF(src_deriv_order, mDerivOrder); + trg_vec_size = (coefs + trg_E + trg_0) * (mDerivOrder+1) - trg_N; + + i = LOWER_OF(from_frame, mStartFrameExt); + from_frame -= i; + ext_left -= i; + + i = LOWER_OF(mHeader.mNSamples-to_frame-1, mEndFrameExt); + to_frame += i; + ext_right -= i; + + if (from_frame > to_frame || from_frame >= mHeader.mNSamples || to_frame< 0) + Error("Invalid frame range for feature file: '%s'", file_name.c_str()); + + tot_frames = to_frame - from_frame + 1 + ext_left + ext_right; + + // initialize matrix + rFeatureMatrix.Init(tot_frames, trg_vec_size); + + // fill the matrix with features + for (i = 0; i <= to_frame - from_frame; i++) + { + BaseFloat* A = mpA; + BaseFloat* B = mpB; + BaseFloat* mxPtr = rFeatureMatrix[i+ext_left]; + + // seek to the desired position + fseek(mStream.fp(), + sizeof(HtkHeader) + (comp ? src_vec_size * 2 * sizeof(FLOAT_32) : 0) + + (from_frame + i) * src_vec_size * coef_size, + SEEK_SET); + + e = ReadHTKFeature(mxPtr, coefs, comp, A, B); + + mxPtr += coefs; + A += coefs; + B += coefs; + + if (src_0 && !src_N) e |= ReadHTKFeature(mxPtr, 1, comp, A++, B++); + if (trg_0 && !trg_N) mxPtr++; + if (src_E && !src_N) e |= ReadHTKFeature(mxPtr, 1, comp, A++, B++); + if (trg_E && !trg_N) mxPtr++; + + for (j = 0; j < lo_src_tgz_deriv_order; j++) + { + e |= ReadHTKFeature(mxPtr, coefs, comp, A, B); + mxPtr += coefs; + A += coefs; + B += coefs; + + if (src_0) e |= ReadHTKFeature(mxPtr, 1, comp, A++, B++); + if (trg_0) mxPtr++; + if (src_E) e |= ReadHTKFeature(mxPtr, 1, comp, A++, B++); + if (trg_E) mxPtr++; + } + + if (e) + Error("Cannot read feature file: '%s' frame %d/%d", file_name.c_str(), + i, to_frame - from_frame + 1); + } + + // From now, coefs includes also trg_0 + trg_E ! + coefs += trg_0 + trg_E; + + // If extension of the matrix to the left or to the right is required, + // perform it here + for (i = 0; i < ext_left; i++) + { + memcpy(rFeatureMatrix[i], + rFeatureMatrix[ext_left], + (coefs * (1+lo_src_tgz_deriv_order) - trg_N) * sizeof(BaseFloat)); + } + + for (i = tot_frames - ext_right; i < tot_frames; i++) + { + memcpy(rFeatureMatrix[i], + rFeatureMatrix[tot_frames - ext_right - 1], + (coefs * (1+lo_src_tgz_deriv_order) - trg_N) * sizeof(BaseFloat)); + } + + // Sentence cepstral mean normalization + if( (mpCmnPath == NULL) + && !(PARAMKIND_Z & mHeader.mSampleKind) + && (PARAMKIND_Z & mTargetKind)) + { + // for each coefficient + for(j=0; j < coefs; j++) + { + BaseFloat norm = 0.0; + for(i=0; i < tot_frames; i++) // for each frame + { + norm += rFeatureMatrix[i][j - trg_N]; + //norm += fea_mx[i*trg_vec_size - trg_N + j]; + } + + norm /= tot_frames; + + for(i=0; i < tot_frames; i++) // for each frame + rFeatureMatrix[i][j - trg_N] -= norm; + //fea_mx[i*trg_vec_size - trg_N + j] -= norm; + } + } + + // Compute missing derivatives + for (; src_deriv_order < mDerivOrder; src_deriv_order++) + { + int winLen = mDerivWinLengths[src_deriv_order]; + BaseFloat norm = 0.0; + + for (k = 1; k <= winLen; k++) + { + norm += 2 * k * k; + } + + // for each frame + for (i=0; i < tot_frames; i++) + { + // for each coefficient + for (j=0; j < coefs; j++) + { + //BaseFloat* src = fea_mx + i*trg_vec_size + src_deriv_order*coefs - trg_N + j; + BaseFloat* src = &rFeatureMatrix[i][src_deriv_order*coefs - trg_N + j]; + + *(src + coefs) = 0.0; + + if (i < winLen || i >= tot_frames-winLen) + { // boundaries need special treatment + for (k = 1; k <= winLen; k++) + { + *(src+coefs) += k*(src[ LOWER_OF(tot_frames-1-i,k)*rFeatureMatrix.Stride()] + -src[-LOWER_OF(i, k)*rFeatureMatrix.Stride()]); + } + } + else + { // otherwise use more efficient code + for (k = 1; k <= winLen; k++) + { + *(src+coefs) += k*(src[ k * rFeatureMatrix.Stride()] + -src[-k * rFeatureMatrix.Stride()]); + } + } + *(src + coefs) /= norm; + } + } + } + + mHeader.mNSamples = tot_frames; + mHeader.mSampleSize = trg_vec_size * sizeof(FLOAT_32); + mHeader.mSampleKind = mTargetKind & ~(PARAMKIND_D | PARAMKIND_A | PARAMKIND_T); + + + //////////////////////////////////////////////////////////////////////////// + /////////////// Cepstral mean and variance normalization /////////////////// + //////////////////////////////////////////////////////////////////////////// + //......................................................................... + if (mpCmnPath != NULL + && mpCmnMask != NULL) + { + // retrieve file name + ProcessMask(file_name, mpCmnMask, cmn_file_name); + // add the path correctly + cmn_file_name.insert(0, "/"); + cmn_file_name.insert(0, mpCmnPath); + + // read the file + ReadCepsNormFile(cmn_file_name.c_str(), &mpLastCmnFile, &mpCmn, + mHeader.mSampleKind & ~PARAMKIND_Z, CNF_Mean, coefs); + + // recompute feature values + for (i=0; i < tot_frames; i++) + { + for (j=trg_N; j < coefs; j++) + { + rFeatureMatrix[i][j - trg_N] -= mpCmn[j]; + } + } + } + + mHeader.mSampleKind |= mDerivOrder==3 ? PARAMKIND_D | PARAMKIND_A | PARAMKIND_T : + mDerivOrder==2 ? PARAMKIND_D | PARAMKIND_A : + mDerivOrder==1 ? PARAMKIND_D : 0; + + //......................................................................... + if (mpCvnPath != NULL + && mpCvnMask != NULL) + { + // retrieve file name + ProcessMask(file_name, mpCvnMask, cvn_file_name); + // add the path correctly + cvn_file_name.insert(0, "/"); + cvn_file_name.insert(0, mpCvnPath); + + // read the file + ReadCepsNormFile(cvn_file_name.c_str(), &mpLastCvnFile, &mpCvn, + mHeader.mSampleKind, CNF_Variance, trg_vec_size); + + // recompute feature values + for (i=0; i < tot_frames; i++) + { + for (j=trg_N; j < trg_vec_size; j++) + { + rFeatureMatrix[i][j - trg_N] *= mpCvn[j]; + } + } + } + + //......................................................................... + // process the global covariance file + if (mpCvgFile != NULL) + { + ReadCepsNormFile(mpCvgFile, &mpLastCvgFile, &mpCvg, + -1, CNF_VarScale, trg_vec_size); + + // recompute feature values + for (i=0; i < tot_frames; i++) + { + for (j=trg_N; j < trg_vec_size; j++) + { + rFeatureMatrix[i][j - trg_N] *= mpCvg[j]; + } + } + } + + return true; + } +*/ + + //*************************************************************************** + //*************************************************************************** + + + + + + //*************************************************************************** + //*************************************************************************** + bool + FeatureRepository:: + ReadHTKFeatures(const FileListElem& rFileNameRecord, + Matrix<BaseFloat>& rFeatureMatrix) + { + std::string file_name(rFileNameRecord.Physical()); + std::string cmn_file_name; + std::string cvn_file_name; + + int ext_left = mStartFrameExt; + int ext_right = mEndFrameExt; + int from_frame; + int to_frame; + int tot_frames; + int trg_vec_size; + int src_vec_size; + int src_deriv_order; + int lo_src_tgz_deriv_order; + int i; + int j; + int k; + int e; + int coefs; + int trg_E; + int trg_0; + int trg_N; + int src_E; + int src_0; + int |