add unnamed namespaces and implement filename chunk parser from ftbuffer

mne-tools · Sep 22, 2021 · c26e7bf · c26e7bf
1 parent 31fc5c6
commit c26e7bf
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Showing 6 changed files with 83 additions and 57 deletions.
diff --git a/applications/mne_scan/plugins/ftbuffer/ftconnector.cpp b/applications/mne_scan/plugins/ftbuffer/ftconnector.cpp
@@ -573,11 +573,14 @@ BufferInfo FtConnector::getBufferInfo()
 
 //=============================================================================================================
 
-FIFFLIB::FiffInfo FtConnector::infoFromSimpleHeader()
+FIFFLIB::FiffInfo FtConnector::infoFromSimpleHeader() const
 {
     FIFFLIB::FiffInfo defaultInfo;
 
-    defaultInfo.sfreq = m_fSampleFreq;
+    defaultInfo.meas_date[0] = static_cast<int32_t>(QDateTime::currentDateTime().toSecsSinceEpoch());
+    defaultInfo.meas_date[1] = 0;
+
+    defaultInfo.sfreq = m_fSamplingFreq;
     defaultInfo.nchan = m_iNumChannels;
 
     defaultInfo.chs.clear();
@@ -598,3 +601,43 @@ FIFFLIB::FiffInfo FtConnector::infoFromSimpleHeader()
 
     return defaultInfo;
 }
+
+//=============================================================================================================
+
+void FtConnector::checkForMissingMetadataFields(MetaData& data) const
+{
+    if (!data.bFiffInfo){
+        data.setFiffinfo(infoFromSimpleHeader());
+    } else {
+        if ( data.info.meas_date[0] == -1 )
+        {
+            data.info.meas_date[0] = static_cast<int32_t>(QDateTime::currentDateTime().toSecsSinceEpoch());
+            data.info.meas_date[1] = 0;
+        }
+
+        if ( data.info.sfreq <= 0 )
+        {
+            data.info.sfreq = m_fSamplingFreq;
+        }
+        if ( data.info.nchan == -1 )
+        {
+            data.info.nchan = m_iNumChannels;
+            data.info.chs.clear();
+            for (int chani = 0; chani< m_iNumChannels; chani++)
+            {
+                FIFFLIB::FiffChInfo channel;
+
+                channel.ch_name = "Ch. " + QString::number(chani);
+                channel.kind = FIFFV_MEG_CH;
+                channel.unit = FIFF_UNIT_T;
+                channel.unit_mul = FIFF_UNITM_NONE;
+                channel.chpos.coil_type = FIFFV_COIL_NONE;
+
+                data.info.chs.append(channel);
+
+                data.info.ch_names.append("Ch. " + QString::number(chani));
+
+            }
+        }
+    }
+}
diff --git a/applications/mne_scan/plugins/ftbuffer/ftconnector.h b/applications/mne_scan/plugins/ftbuffer/ftconnector.h
@@ -293,8 +293,8 @@ class FtConnector : public QObject
      * @param[out] buffer       QBuffer to which daa will be written.
      * @param[in] numBytes      How many bytes to read from socket.
      */
-    void copyAllChunks(QBuffer &buffer,
-                    int numBytes);
+    void copyResponse(QBuffer &buffer,
+                       int numBytes);
 
     //=========================================================================================================
     /**
@@ -310,7 +310,16 @@ class FtConnector : public QObject
      *
      * @return FiffInfo object based on filedtrip header
      */
-    FIFFLIB::FiffInfo infoFromSimpleHeader();
+    FIFFLIB::FiffInfo infoFromSimpleHeader() const;
+
+    //=========================================================================================================
+    /**
+     * Checks for empty or invalid important fields in the parsed metadata and attempts to fill them.
+     *
+     * @param[in] data FiffInfo structure with information parsed from the FTBuffer headers.
+     *
+     */
+    void checkForMissingMetadataFields(MetaData& data) const;
 
     int                                     m_iMinSampleRead;                       /**< Number of samples that need to be added t obuffer before we try to read. */
     int                                     m_iNumSamples;                          /**< Number of samples we've read from the buffer. */
@@ -323,7 +332,7 @@ class FtConnector : public QObject
 
     bool                                    m_bNewData;                             /**< Indicate whether we've received new data. */
 
-    float                                   m_fSampleFreq;                          /**< Sampling frequency of data in the buffer. */
+    float                                   m_fSamplingFreq;                        /**< Sampling frequency of data in the buffer. */
 
     QString                                 m_sAddress;                             /**< Address where the ft buffer is found. */
 

diff --git a/applications/mne_scan/plugins/ftbuffer/ftheaderparser.cpp b/applications/mne_scan/plugins/ftbuffer/ftheaderparser.cpp
@@ -38,6 +38,8 @@
 //=============================================================================================================
 
 #include "ftheaderparser.h"
+#include "fiff/fiff_ch_info.h"
+#include "fiff/fiff_constants.h"
 
 //=============================================================================================================
 // QT INCLUDES
@@ -85,40 +87,23 @@ void parseChannelNamesHeader( MetaData& data, QBuffer& channelNamesBuffer)
 
 //    qInfo() << channelNames;
     FIFFLIB::FiffInfo info;
-    info.clear();
-    info.file_id =
-    info.meas_id =
-    info.meas_date[0] =
-    info.meas_date[1] =
-
-    info.nchan =
-    info.chs =
-    info.ch_names =
-
-    info.sfreq =
-    info.linefreq =
-
-    info.highpass =
-    info.lowpass =
-
-    info.dig   = dig;
-    if (!dig_trans.isEmpty())
-        info.dig_trans = dig_trans;
-
-    info.experimenter = experimenter;
-    info.description = description;
-    info.proj_id = proj_id;
-    info.proj_name = proj_name;
-    info.xplotter_layout = xplotter_layout;
-    info.gantry_angle = gantry_angle;
-    info.utc_offset = utc_offset;
-
-    info.bads  = bads;
-    info.projs = projs;
-    info.comps = comps;
-    info.acq_pars = acq_pars;
-    info.acq_stim = acq_stim;
 
+    info.nchan = static_cast<FIFFLIB::fiff_int_t>(channelNames.size());
+
+    QList<FIFFLIB::FiffChInfo> chanList;
+    for ( auto& name : channelNames)
+    {
+        FIFFLIB::FiffChInfo chanInfo;
+        chanInfo.ch_name = name;
+        chanInfo.kind = FIFFV_MEG_CH;
+        chanInfo.unit = FIFF_UNIT_T;
+        chanInfo.unit_mul = FIFF_UNITM_NONE;
+        chanList.append(chanInfo);
+    }
+    info.chs = chanList;
+    info.ch_names = channelNames;
+
+    data.setFiffinfo(info);
 }
 
 //=============================================================================================================
@@ -185,7 +170,7 @@ FtHeaderParser::FtHeaderParser()
 
 //=============================================================================================================
 
-MetaData FtHeaderParser::parseHeader(QBuffer &buffer)
+MetaData FtHeaderParser::parseExtendedHeader(QBuffer &buffer)
 {
     MetaData data;
     while(!buffer.atEnd()){

diff --git a/applications/mne_scan/plugins/ftbuffer/ftheaderparser.h b/applications/mne_scan/plugins/ftbuffer/ftheaderparser.h
@@ -87,18 +87,6 @@ struct FTBUFFER_EXPORT MetaData{
                                                                          bFiffDigitizerData = true;};
 };
 
-//namespace {
-
-//void parseChannelNamesHeader(MetaData& data, const QBuffer& neuromagBuffer);
-
-//void parseNeuromagHeader(MetaData& data, QBuffer& neuromagBuffer);
-
-//void parseIsotrakHeader(MetaData& data, QBuffer& isotrakBuffer);
-
-//QStringList extractChannelNamesFromBuffer(QBuffer& buffer);
-
-//} //namespace details
-
 //=============================================================================================================
 /**
  * This class parses the extended header chunks of a fieldtrip buffer and returns measurement metadata.
@@ -125,7 +113,7 @@ class FTBUFFER_EXPORT FtHeaderParser{
      *
      * @return Returns MetaData object containing buffer/measurement metadata.
      */
-    MetaData parseHeader(QBuffer& buffer);
+    MetaData parseExtendedHeader(QBuffer& buffer);
 
 private:
     class Chunk

diff --git a/libraries/fiff/fiff_ch_info.cpp b/libraries/fiff/fiff_ch_info.cpp
@@ -56,10 +56,10 @@ FiffChInfo::FiffChInfo()
 , kind(0)
 , range(1.0f)
 , cal(1.0f)
-, coord_frame(FIFFV_COORD_UNKNOWN)
 , unit(0)
 , unit_mul(0)
 , ch_name(QString(""))
+, coord_frame(FIFFV_COORD_UNKNOWN)
 {
     coil_trans.setIdentity();
 }
@@ -73,12 +73,12 @@ FiffChInfo::FiffChInfo(const FiffChInfo &p_FiffChInfo)
 , range(p_FiffChInfo.range)
 , cal(p_FiffChInfo.cal)
 , chpos(p_FiffChInfo.chpos)
-, coil_trans(p_FiffChInfo.coil_trans)
-, eeg_loc(p_FiffChInfo.eeg_loc)
-, coord_frame(p_FiffChInfo.coord_frame)
 , unit(p_FiffChInfo.unit)
 , unit_mul(p_FiffChInfo.unit_mul)
 , ch_name(p_FiffChInfo.ch_name)
+, coil_trans(p_FiffChInfo.coil_trans)
+, eeg_loc(p_FiffChInfo.eeg_loc)
+, coord_frame(p_FiffChInfo.coord_frame)
 {
 }
 

diff --git a/libraries/fiff/fiff_constants.h b/libraries/fiff/fiff_constants.h
@@ -198,6 +198,7 @@ namespace FIFFLIB
 #define FIFFV_COIL_KRISS_GRAD                   9001    /**< KRISS gradiometer. */
 #define FIFFV_COIL_COMPUMEDICS_ADULT_GRAD       9101    /**< Compumedics adult gradiometer. */
 #define FIFFV_COIL_COMPUMEDICS_PEDIATRIC_GRAD   9102    /**< Compumedics pediatric gradiometer. */
+#define FIFFV_COIL_FIELDLINE_OPM               10001    /**< Fieldliine OPM magnetometer. */
 
 #define FIFFM_IS_VV_COIL(c) ((c)/1000 == 3)