From 552b3ba5f310a5cffdc7931f66cab4fefe769dc4 Mon Sep 17 00:00:00 2001
From: Peter L Jones <peter@drealm.info>
Date: Wed, 3 Jun 2020 22:31:52 +0100
Subject: [PATCH] #315 Provide Audacity "list of file" for session

---
 ChangeLog                     |  2 +-
 src/recorder/creaperproject.h | 21 ---------
 src/recorder/cwavestream.h    | 25 ++++++++++
 src/recorder/jamrecorder.cpp  | 86 +++++++++++++++++++++++++----------
 src/recorder/jamrecorder.h    |  2 +
 5 files changed, 91 insertions(+), 45 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 3bde676a..9f584bac 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -19,7 +19,7 @@
 - bug fix: on MacOS declare an activity to ensure the process doesn't get throttled
   by OS level Nap, Sleep, and Thread Priority systems, coded by AronVietti (#23)
 
-
+- add Audacity "list of files" writer to jam recorder, by pljones (#315)
 
 
 
diff --git a/src/recorder/creaperproject.h b/src/recorder/creaperproject.h
index be6f190a..1fbb57ea 100755
--- a/src/recorder/creaperproject.h
+++ b/src/recorder/creaperproject.h
@@ -32,21 +32,6 @@
 
 namespace recorder {
 
-struct STrackItem
-{
-    STrackItem(int numAudioChannels, qint64 startFrame, qint64 frameCount, QString fileName) :
-        numAudioChannels(numAudioChannels),
-        startFrame(startFrame),
-        frameCount(frameCount),
-        fileName(fileName)
-    {
-    }
-    int numAudioChannels;
-    qint64 startFrame;
-    qint64 frameCount;
-    QString fileName;
-};
-
 class CReaperItem : public QObject
 {
     Q_OBJECT
@@ -59,12 +44,6 @@ private:
     const QUuid iguid = QUuid::createUuid();
     const QUuid guid = QUuid::createUuid();
     QString out;
-
-    inline QString secondsAt48K( const qint64 frames,
-                                 const int    frameSize )
-    {
-        return QString::number( static_cast<double>( frames * frameSize ) / 48000, 'f', 14 );
-    }
 };
 
 class CReaperTrack : public QObject
diff --git a/src/recorder/cwavestream.h b/src/recorder/cwavestream.h
index f3ceab66..6d8f1ec8 100755
--- a/src/recorder/cwavestream.h
+++ b/src/recorder/cwavestream.h
@@ -27,6 +27,31 @@
 
 namespace recorder {
 
+inline QString secondsAt48K( const qint64 frames,
+                             const int    frameSize )
+{
+    return QString::number( static_cast<double>( frames * frameSize ) / 48000, 'f', 14 );
+}
+
+struct STrackItem
+{
+    STrackItem ( int numAudioChannels,
+                 qint64 startFrame,
+                 qint64 frameCount,
+                 QString fileName ) :
+        numAudioChannels ( numAudioChannels ),
+        startFrame       ( startFrame ),
+        frameCount       ( frameCount ),
+        fileName         ( fileName )
+    {
+    }
+
+    int numAudioChannels;
+    qint64 startFrame;
+    qint64 frameCount;
+    QString fileName;
+};
+
 class HdrRiff
 {
 public:
diff --git a/src/recorder/jamrecorder.cpp b/src/recorder/jamrecorder.cpp
index d8dc9833..40e10321 100755
--- a/src/recorder/jamrecorder.cpp
+++ b/src/recorder/jamrecorder.cpp
@@ -381,35 +381,15 @@ void CJamRecorder::OnEnd()
         isRecording = false;
         currentSession->End();
 
-        QString reaperProjectFileName = currentSession->SessionDir().filePath(currentSession->Name().append(".rpp"));
-        const QFileInfo fi(reaperProjectFileName);
-
-        if (fi.exists())
-        {
-            qWarning() << "CJamRecorder::OnEnd():" << fi.absolutePath() << "exists and will not be overwritten.";
-            reaperProjectFileName = QString::Null();
-        }
-        else
-        {
-            QFile outf (reaperProjectFileName);
-            if ( outf.open(QFile::WriteOnly) )
-            {
-                QTextStream out(&outf);
-                out << CReaperProject( currentSession->Tracks(), iServerFrameSizeSamples ).toString() << endl;
-                qDebug() << "Session RPP:" << reaperProjectFileName;
-            }
-            else
-            {
-                qWarning() << "CJamRecorder::OnEnd():" << fi.absolutePath() << "could not be created, no RPP written.";
-                reaperProjectFileName = QString::Null();
-            }
-        }
+        ReaperProjectFromCurrentSession();
+        AudacityLofFromCurrentSession();
 
         delete currentSession;
         currentSession = nullptr;
     }
 }
 
+
 /**
  * @brief CJamRecorder::OnTriggerSession End one session and start a new one
  */
@@ -432,6 +412,66 @@ void CJamRecorder::OnAboutToQuit()
     thisThread->exit();
 }
 
+void CJamRecorder::ReaperProjectFromCurrentSession()
+{
+    QString reaperProjectFileName = currentSession->SessionDir().filePath(currentSession->Name().append(".rpp"));
+    const QFileInfo fi(reaperProjectFileName);
+
+    if (fi.exists())
+    {
+        qWarning() << "CJamRecorder::ReaperProjectFromCurrentSession():" << fi.absolutePath() << "exists and will not be overwritten.";
+    }
+    else
+    {
+        QFile outf (reaperProjectFileName);
+        if ( outf.open(QFile::WriteOnly) )
+        {
+            QTextStream out(&outf);
+            out << CReaperProject( currentSession->Tracks(), iServerFrameSizeSamples ).toString() << endl;
+            qDebug() << "Session RPP:" << reaperProjectFileName;
+        }
+        else
+        {
+            qWarning() << "CJamRecorder::ReaperProjectFromCurrentSession():" << fi.absolutePath() << "could not be created, no RPP written.";
+        }
+    }
+}
+
+void CJamRecorder::AudacityLofFromCurrentSession()
+{
+    QString audacityLofFileName = currentSession->SessionDir().filePath(currentSession->Name().append(".lof"));
+    const QFileInfo fi(audacityLofFileName);
+
+    if (fi.exists())
+    {
+        qWarning() << "CJamRecorder::AudacityLofFromCurrentSession():" << fi.absolutePath() << "exists and will not be overwritten.";
+    }
+    else
+    {
+        QFile outf (audacityLofFileName);
+        if ( outf.open(QFile::WriteOnly) )
+        {
+            QTextStream sOut(&outf);
+
+            foreach ( auto trackName, currentSession->Tracks().keys() )
+            {
+                foreach ( auto item, currentSession->Tracks()[trackName] ) {
+                    QFileInfo fi ( item.fileName );
+                    sOut << "file " << '"' << fi.fileName() << '"';
+                    sOut << " offset " << secondsAt48K( item.startFrame, iServerFrameSizeSamples ) << endl;
+                }
+            }
+
+            sOut.flush();
+            qDebug() << "Session LOF:" << audacityLofFileName;
+        }
+        else
+        {
+            qWarning() << "CJamRecorder::AudacityLofFromCurrentSession():" << fi.absolutePath() << "could not be created, no LOF written.";
+        }
+    }
+}
+
 /**
  * @brief CJamRecorder::SessionDirToReaper Replica of CJamRecorder::OnEnd() but using the directory contents to construct the CReaperProject object
  * @param strSessionDirName
diff --git a/src/recorder/jamrecorder.h b/src/recorder/jamrecorder.h
index 0dec305f..b0e2651c 100755
--- a/src/recorder/jamrecorder.h
+++ b/src/recorder/jamrecorder.h
@@ -159,6 +159,8 @@ public:
 
 private:
     void Start();
+    void ReaperProjectFromCurrentSession();
+    void AudacityLofFromCurrentSession();
 
     QDir recordBaseDir;