new branch muse2, first checkin

1 files changed, 105 insertions, 0 deletions

diff --git a/muse2/share/scripts/SwingQuantize1 b/muse2/share/scripts/SwingQuantize1
new file mode 100755
index 00000000..11fded84
--- /dev/null
+++ b/muse2/share/scripts/SwingQuantize1
@@ -0,0 +1,105 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+# MusE external midi processing script
+# By: Robert Jonsson 2009
+# Quantize
+
+import sys,time
+from PyQt4 import QtGui, QtCore
+import random
+
+class Quantize(QtGui.QWidget):
+    def __init__(self, parent=None):
+        QtGui.QWidget.__init__(self, parent)
+
+        self.setWindowTitle('Swing quantize V1')
+
+        
+        self.beatEdit = QtGui.QComboBox()
+        self.beatEdit.addItem('1/1',1)
+        self.beatEdit.addItem('1/2',2)
+        self.beatEdit.addItem('1/4',4)
+        self.beatEdit.addItem('1/8',8)
+        self.beatEdit.addItem('1/16',16)
+        self.beatEdit.addItem('1/32',32)
+        self.beatEdit.setCurrentIndex(2)
+        self.spreadEdit = QtGui.QLineEdit()
+        self.spreadEdit.setText('10')
+        
+        button = QtGui.QPushButton("Execute")
+        self.connect(button,  QtCore.SIGNAL('clicked()'), self.execute) 
+
+        grid = QtGui.QGridLayout()
+        grid.setSpacing(3)
+
+        grid.addWidget(QtGui.QLabel('Beat granularity:'), 1, 0)
+        grid.addWidget(self.beatEdit, 1, 1)
+        grid.addWidget(QtGui.QLabel('Spread/Swing(ticks)'), 2, 0)
+        grid.addWidget(self.spreadEdit, 2, 1)
+        grid.addWidget(button, 3, 1)
+
+        self.setLayout(grid)
+        self.resize(200, 100)
+        button.setFocus()
+
+    def execute(self):
+        testFile = file(sys.argv[1],"r")
+        inputEvents = testFile.readlines()
+        testFile.close()
+        
+        beatDiv = self.beatEdit.itemData(self.beatEdit.currentIndex()).toInt()[0]
+        minSize=0 # fill in when we get the beat size value
+        outputEvents=[]
+        quantLen=0
+
+        #get beat length to calculate minimum length of event
+        for line in inputEvents:
+            if line.startswith('BEATLEN'):
+              tag,tick = line.split(' ')
+              beatLen=int(tick)
+              quantLen=int(tick)/beatDiv*4
+              print "quantLen=%d beatDiv=%d"%(quantLen, beatDiv)
+            print line.strip()
+        #loop through events and quantize to the given beat
+        eventList=[]
+        for line in inputEvents:
+            if line.startswith('NOTE'):
+              tag,tick,pitch,length,velocity = line.split(' ')
+
+              # over quantize
+              lowerBound=(int(tick)/quantLen)*quantLen
+              upperBound=lowerBound+quantLen
+              lowDiff=int(tick)-lowerBound
+              highDiff=upperBound - int(tick)
+              if( lowDiff < highDiff):
+                newTick=lowerBound
+              else:
+                newTick=upperBound
+
+              # apply swing factor to every other 8 beat
+              print "float =%f int = %d"%((float(newTick+beatLen)) / beatLen/2,((newTick+beatLen))/beatLen/2)
+              if  ((float(newTick+beatLen)) / beatLen/2 - ((newTick+beatLen))/beatLen/2) < 0.1:
+                  print "adding swing to:",newTick
+                  newTick=int(random.gauss(newTick,self.spreadEdit.text().toInt()[0]))
+                  if (newTick < 0):
+                    newTick=0
+
+              newLine="NOTE "+ str(newTick)+" " + pitch  + " "+ length + " " + velocity
+              print "newLine:",newLine.strip()
+              outputEvents.append(newLine)
+            else:
+              outputEvents.append(line)
+            
+
+
+        testFile = file(sys.argv[1],"w")
+        testFile.writelines(outputEvents)
+        testFile.close()
+
+        quit()
+
+
+app = QtGui.QApplication(sys.argv)
+qb = Quantize()
+qb.show()
+sys.exit(app.exec_())