/
main.py
executable file
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/
main.py
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#! /usr/bin/env python
import sys
import os
import copy
import time
import datetime
import sounddevice as sd
import scipy.io.wavfile as wf
from PyQt4 import QtCore, QtGui
from PyQt4.QtCore import QTime
from form import Ui_Form
from main_window import Ui_MusicSplitter
from vad import VAD
from progressbar import ProgressBar
class MyTableModel(QtCore.QAbstractTableModel):
""" Table model class.
"""
def __init__(self, datain, headerdata, parent=None, *args):
""" Class constructor.
"""
QtCore.QAbstractTableModel.__init__(self, parent, *args)
self.arraydata = datain
self.headerdata = headerdata
def rowCount(self, parent):
""" Get number of rows.
"""
return len(self.arraydata)
def columnCount(self, parent):
""" Get number of columns.
"""
return 0 if self.arraydata == [] else len(self.arraydata[0])
def data(self, index, role):
""" Set data.
"""
if not index.isValid():
return QtCore.QVariant()
elif role != QtCore.Qt.DisplayRole:
return QtCore.QVariant()
return QtCore.QVariant(self.arraydata[index.row()][index.column()])
def headerData(self, col, o, role):
""" Set header data.
"""
if o == QtCore.Qt.Horizontal and role == QtCore.Qt.DisplayRole:
return QtCore.QVariant(self.headerdata[col])
return QtCore.QVariant()
@staticmethod
def setupColumns(table):
""" Setup columns - size policy.
"""
h = table.horizontalHeader()
h.setResizeMode(0, QtGui.QHeaderView.ResizeToContents)
h.setResizeMode(1, QtGui.QHeaderView.Stretch)
h.setResizeMode(2, QtGui.QHeaderView.ResizeToContents)
h.setResizeMode(3, QtGui.QHeaderView.ResizeToContents)
class MyForm(QtGui.QMainWindow):
""" Main form class.
"""
def __init__(self, parent=None):
""" Class constructor.
"""
QtGui.QWidget.__init__(self, parent)
# UI setup
self.ui = Ui_MusicSplitter()
self.ui.setupUi(self)
self.ui.browseButton.clicked.connect(self.HandleBrowseButton)
self.ui.processButton.clicked.connect(self.HandleProcessButton)
self.ui.saveButton.clicked.connect(self.HandleSaveButton)
self.ui.tableView.resizeColumnsToContents()
self.ui.tableView.setSelectionBehavior(QtGui.QTableView.SelectRows);
self.ui.tableView.clicked.connect(self.HandleTableClicked)
self.ui.tableView.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
self.tableModel = None
# VAD class
self.vad = VAD()
bandStart = self.ui.bandStartBox.value()
self.vad.music_start_band = bandStart
bandEnd = self.ui.bandEndBox.value()
self.vad.music_end_band = bandEnd
minSongLen = self.ui.songLenBox.value()
self.vad.min_song_len = minSongLen
self.foundSongs = None
# Class members
self.inputFile = None
def HandleTableClicked(self, clickedIndex):
""" Handle clicked table.
"""
index = clickedIndex.row()
form = EditForm(self)
song = copy.deepcopy(self.foundSongs[index])
song[1] = os.path.join(os.path.dirname(str(self.inputFile)), str(song[1]))
form.Init(song, self.vad.data, self.vad.bitrate)
form.exec_()
if form.result == []:
self.foundSongs.pop(index)
self.SetupTable(self.foundSongs)
elif form.result is None:
pass
else:
form.result[1] = os.path.join(os.path.dirname(str(self.inputFile)), form.result[1])
form.result[1] = os.path.relpath(form.result[1], os.path.dirname(str(self.inputFile)))
self.foundSongs[index] = form.result
self.SetupTable(self.foundSongs)
def HandleBrowseButton(self):
""" Handle browse button, select input wav file and open it.
"""
f = QtGui.QFileDialog.getOpenFileName(self)
if f:
try:
self.inputFile = open(f, 'r')
self.inputFile.close()
self.inputFile = f
self.ui.chosenFile.setText(f)
except IOError:
self.ShowInformationDialog('Can not open input file!')
self.inputFile = None
def HandleProcessButton(self):
""" Handle button for audio processing.
"""
self.InitVAD()
songs_list = self.vad.ProcessFile(self.inputFile, self.ui.mediancheckBox.isChecked())
# self.emit(QtCore.SIGNAL('BAR_PROGRESS'), None)
if songs_list is None:
self.ShowInformationDialog('Can not process input file!')
elif not songs_list:
self.ShowInformationDialog('No songs found in input wav file!')
else:
self.SetupTable(songs_list)
def InitVAD(self):
""" Init VAD members when processing.
:returns: True if it was possible to initialize, False otherwise
:rtype: bool
"""
if self.ui.levelBox.value() > 0 and self.ui.lengthBox.value() > 0 and self.inputFile is not None \
and self.ui.bandStartBox.value() < self.ui.bandEndBox.value():
self.foundSongs = None
self.vad.thr = self.ui.levelBox.value()
self.vad.sil_len = self.ui.lengthBox.value()
self.vad.music_start_band = self.ui.bandStartBox.value()
self.vad.music_end_band = self.ui.bandEndBox.value()
self.vad.min_song_len = self.ui.songLenBox.value()
self.vad.coresNum = self.ui.coresNumBox.value()
else:
self.ShowInformationDialog(
'Please, set input file and appropriate parameters!')
def HandleSaveButton(self):
""" Handle save all files button.
"""
if self.foundSongs is not None:
for x in self.foundSongs:
name = os.path.join(os.path.dirname(str(self.inputFile)), x[1])
start = EditForm.Time2Frames(x[2], self.vad.bitrate)
end = EditForm.Time2Frames(x[3], self.vad.bitrate)
wf.write(name, self.vad.bitrate, self.vad.data[start:end])
else:
MyForm.ShowInformationDialog('No results to save!')
def SetupTable(self, data):
""" Initialize table with data.
:param data: table data
:type data: list
"""
self.foundSongs = data
header = ['Num', 'File Name', 'Start', 'End']
self.tableModel = MyTableModel(data, header, self)
self.ui.tableView.setModel(self.tableModel)
MyTableModel.setupColumns(self.ui.tableView)
@staticmethod
def ShowInformationDialog(text):
""" Show simple information dialog.
"""
msg = QtGui.QMessageBox()
msg.setIcon(QtGui.QMessageBox.Information)
msg.setText(text)
msg.setStandardButtons(QtGui.QMessageBox.Ok)
msg.exec_()
class EditForm(QtGui.QDialog):
""" Edit one song - small dialog.
"""
def __init__(self, parent=None):
""" Class constructor.
"""
super(EditForm, self).__init__(parent)
# UI setup
self.ui = Ui_Form()
self.ui.setupUi(self)
self.ui.saveButton.clicked.connect(self.HandleSaveButton)
self.ui.okButton.clicked.connect(self.HandleOkButton)
self.ui.resetButton.clicked.connect(self.HandleResetButton)
self.ui.deleteButton.clicked.connect(self.HandleDeleteButton)
self.ui.musicButton.clicked.connect(self.HandleMusicButton)
self.ui.saveFileButton.clicked.connect(self.HandleSaveFileButton)
self.ui.startTime.setDisplayFormat('hh:mm:ss')
self.ui.endTime.setDisplayFormat('hh:mm:ss')
self.ui.startTime.setMinimumTime(QTime(0, 0, 0))
# Class members
self.song = None
self.data = None
self.resetData = None
self.bitrate = None
self.name = None
self.result = None
self.index = None
self.isPlaying = False
def __del__(self):
""" Class destuctor.
"""
if self.isPlaying:
sd.stop()
def Init(self, song, data, bitrate):
""" Initialize with song.
:param song: input song
:type song: list
:param data: input data from wav file
:type data: numpy.array
:param bitrate: bitrate of input file
:type bitrate: int
"""
self.song = copy.deepcopy(song)
self.index = self.song[0]
self.name = self.song[1]
self.ui.saveButton.setText(self.name)
self.data = data
self.resetData = copy.deepcopy(song)
self.bitrate = bitrate
h, m, s = EditForm.ParseTime(self.song[2])
self.ui.startTime.setTime(QTime(h, m, s))
h, m, s = EditForm.ParseTime(self.song[3])
self.ui.endTime.setTime(QTime(h, m, s))
end_time = datetime.timedelta(seconds=int(self.data.shape[0] / self.bitrate))
h, m, s = EditForm.ParseTime(str(end_time))
self.ui.endTime.setMaximumTime(QTime(h, m, s))
def HandleSaveButton(self):
""" Handle save button. Saves separate file.
"""
name = QtGui.QFileDialog.getSaveFileName(self, 'Save File')
if len(name) > 0:
self.name = name
self.ui.saveButton.setText(name)
def HandleOkButton(self):
""" Handle ok button. Save changes to parent window(table).
"""
start = str(self.ui.startTime.time().toString())
end = str(self.ui.endTime.time().toString())
self.result = [self.index, str(self.name), start, end]
self.accept()
def HandleResetButton(self):
""" Handle reset button. Resets to default configuration.
"""
self.ui.saveButton.setText(self.resetData[1])
h, m, s = EditForm.ParseTime(self.resetData[2])
self.ui.startTime.setTime(QTime(h, m, s))
h, m, s = EditForm.ParseTime(self.resetData[3])
self.ui.endTime.setTime(QTime(h, m, s))
def HandleDeleteButton(self):
""" Handle delete button. Deletes input row from table.
"""
self.result = []
self.accept()
def HandleMusicButton(self):
""" Handle music playing button. Play/Stop music by input interval.
"""
if not self.isPlaying:
self.ui.musicButton.setText('Stop')
start = EditForm.Time2Frames(str(self.ui.startTime.time().toString()), self.bitrate)
end = EditForm.Time2Frames(str(self.ui.endTime.time().toString()), self.bitrate)
sd.play(self.data[start:end], self.bitrate)
self.isPlaying = True
else:
self.ui.musicButton.setText('Play')
sd.stop()
self.isPlaying = False
def HandleSaveFileButton(self):
""" Handle separated save file button.
"""
start = EditForm.Time2Frames(str(self.ui.startTime.time().toString()), self.bitrate)
end = EditForm.Time2Frames(str(self.ui.endTime.time().toString()), self.bitrate)
wf.write(self.name, self.bitrate, self.data[start:end])
@staticmethod
def ParseTime(time):
""" Parse time in format hh:mm:ss.
:param time: input time
:type time: str
:returns: hours, minutes, seconds
:rtype: tuple
"""
f = time.find(':')
l = time.rfind(':')
h = time[:f]
m = time[f + 1:l]
s = time[l + 1:]
return int(h), int(m), int(s)
@staticmethod
def Time2Frames(time, freq):
""" Transfer time in h:m:s string to index by frequency.
:param time: input time
:type time: str
:param freq: input frequency
:type freq: int
"""
time = EditForm.ParseTime(time)
sec = time[0] * 3600 + time[1] * 60 + time[2]
return sec * freq
if __name__ == "__main__":
app = QtGui.QApplication(sys.argv)
myapp = MyForm()
myapp.show()
sys.exit(app.exec_())