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midi2exo_117b.py
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midi2exo_117b.py
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from copy import deepcopy
from math import ceil
from mido import MidiFile, tempo2bpm, bpm2tempo, tick2second
from os.path import normpath, exists, expanduser
from sys import argv, exit
from PyQt5 import QtCore, QtWidgets
from PyQt5.QtWidgets import QAction, QApplication, QCheckBox, QFileDialog, QGroupBox, QHBoxLayout, QLabel, QLineEdit, QMainWindow, QMessageBox, QProgressDialog, QPushButton, QTreeWidget, QTreeWidgetItem, QVBoxLayout, QWidget
from PyQt5.QtGui import QBrush, QColor, QIcon, QTextFormat
from PyQt5.Qt import Qt, QIntValidator, QRegularExpressionValidator, QRegularExpression
from PyQt5.QtCore import QEvent, QObject
from pyaviutl.exo117b import *
version = '1.1a'
illegalChars = dict((ord(char), None) for char in '\/*?:"<>|')
exts = ['mp4', 'ts', 'wmv', 'mov', 'mkv', 'avi']
def toFileName(s):
return s.translate(illegalChars)
class DropFileHandler(QObject):
def eventFilter(self, watched, event):
if event.type() == QEvent.DragEnter:
event.accept()
elif event.type() == QEvent.Drop:
mime = event.mimeData()
if mime.hasUrls():
watched.setText(normpath(event.mimeData().urls()[0].toLocalFile()))
return True
return super().eventFilter(watched, event)
class MenuItem:
def __init__(self, parent, name, tip=None, target=None, shortcut=None):
self.name = name
self.action = QAction(name, parent)
if shortcut is not None:
self.action.setShortcut(shortcut)
if tip is not None:
self.action.setStatusTip(tip)
if target is not None:
self.action.triggered.connect(target)
class Channel:
def __init__(self, name, items, path, alpha, flip):
self.items = items
self.name = name
self.auto = True
self.path = path
self.alpha = alpha
self.flip = flip
self.exists = False
self.enabled = True
def clearAuto(self):
self.auto = False
def size(self):
return len(self.items)
class Note:
def __init__(self, start=1, layer=1, objid=1):
self.start, self.layer, self.objid = start, layer, objid
class Midi2ExoMain(QMainWindow):
titlePref = 'midi2exo v{0}'.format(version)
nowChl = -1
def __init__(self):
global app
super().__init__()
self.menu = {
'文件': [
MenuItem(self, '打开', '打开 MIDI 文件', self.open, 'Ctrl+O'),
MenuItem(self, '导出 EXO', '导出 EXO 文件', self.save, 'Ctrl+S'),
MenuItem(self, '|'),
MenuItem(self, '退出', '退出本应用程序', self.close, 'Alt+F4')
],
'帮助': [MenuItem(self, '关于', '关于本程序', self.about)]
}
self.file = ''
self.tempo = None
self.channels = []
self.setAcceptDrops(True)
app.focusChanged.connect(self.onFocusChanged)
self.render()
def dragEnterEvent(self, event):
if event.mimeData().hasUrls():
event.accept()
else:
event.ignore()
def dropEvent(self, event):
files = [u.toLocalFile() for u in event.mimeData().urls()]
if len(files) != 0:
self.file = files[0]
self.handleMidi()
def about(self):
msgBox = QMessageBox(self)
msgBox.setIcon(QMessageBox.Information)
msgBox.setWindowTitle('关于')
msgBox.setText('''
<center>
<h3>midi2exo</h3>
<font color=grey align=left>
<div>版本：v{0}</div>
<div>作者：xszqxszq</div>
<div>适用：AviUtl 中文版 1.17b</div>
</font>
</center>'''.format(version))
msgBox.setTextFormat(Qt.RichText)
msgBox.setInformativeText('本程序可以利用 MIDI 文件生成 exo 文件，以减轻在 AviUtl 中音乐相关剪辑（如音MAD）的工作量。')
aboutQt = msgBox.addButton('关于 Qt', QMessageBox.ActionRole)
msgBox.addButton(QMessageBox.Ok)
msgBox.exec_()
if msgBox.clickedButton() == aboutQt:
QMessageBox.aboutQt(self, '关于 Qt')
def open(self):
self.file, _ = QFileDialog.getOpenFileName(self, '打开 MIDI 文件', filter='MIDI 文件 (*.mid)')
if self.file:
self.handleMidi()
def setDefSrcPath(self):
path = QFileDialog.getExistingDirectory(self, '选择素材默认存放文件夹', self.defSrcPathLE.text())
if path != '':
self.defSrcPathLE.setText(normpath(path))
def setNowSrcPath(self):
path, _ = QFileDialog.getOpenFileName(self, '选择素材文件', self.nowSrcPathLE.text())
if path != '':
self.nowSrcPathLE.setText(normpath(path))
def handleMidi(self, targetTempo = None):
try:
self.midi = MidiFile(self.file)
except Exception as e:
QMessageBox.critical(self, '错误', '文件无法读取，该文件可能不是midi文件')
return
self.channels = []
nowLayer, nowTempo = 0, 500000
if targetTempo:
nowTempo = targetTempo
for track in self.midi.tracks:
initial = True
nowPosition = 0
lastNote = None
for msg in track:
nowPosition += msg.time
if msg.type == 'set_tempo' and not targetTempo:
nowTempo = msg.tempo
self.tempo = nowTempo
self.bpmLE.setText(str(round(tempo2bpm(nowTempo), 2)))
elif msg.type == 'note_on':
if initial:
nowLayer += 1
self.channels.append(Channel(track.name, [], self.getPath(self.defSrcPathLE.text(), track.name, self.extLE.text()), self.defAlpha.checkState(), self.defFlip.checkState()))
initial = False
if lastNote and lastNote.start == nowPosition:
continue
if lastNote:
self.channels[lastNote.objid].items.append(ExoVideo(
start = tick2second(lastNote.start, self.midi.ticks_per_beat, nowTempo),
end = tick2second(nowPosition, self.midi.ticks_per_beat, nowTempo),
layer = lastNote.layer
))
lastNote = Note(nowPosition, nowLayer, nowLayer-1)
if lastNote is not None:
self.channels[lastNote.objid].items.append(ExoVideo(
start = tick2second(lastNote.start, self.midi.ticks_per_beat, nowTempo),
end = tick2second(nowPosition, self.midi.ticks_per_beat, nowTempo),
layer = lastNote.layer
))
self.nowChl = -1
self.refresh()
self.setWindowTitle('{0} - {1}'.format(self.titlePref, self.file))
self.chlLstWid.clearSelection()
def anyNonExist(self):
for i in self.channels:
if i.enabled and not i.exists:
return True
return False
def save(self):
self.refresh()
if self.anyNonExist():
reply = QMessageBox.warning(self, '警告', '有轨道的素材文件不存在，这可能导致exo文件在导入时会不断报错，是否仍要导出？', QMessageBox.Yes | QMessageBox.No)
if reply == QMessageBox.No:
return
path, _ = QFileDialog.getSaveFileName(self, '导出 EXO 文件', filter='EXO 文件 (*.exo)')
if not path:
return
exo = {}
exo['exedit'] = {
'width': int(self.geomWLE.text()),
'height': int(self.geomHLE.text()),
'rate': int(self.fps.text()),
'scale': 1,
'audio_rate': int(self.sr.text()),
'audio_ch': 2,
}
exo['exedit']['length'] = ceil(self.midi.length * exo['exedit']['rate']) # !Important: Length must be calculated
nowObj = 0
for ch in self.channels:
if not ch.enabled:
continue
vid = SceneSettings(ch.path, alpha=ch.alpha//2)
for v in ch.items:
exo[nowObj] = deepcopy(v)
exo[nowObj].group = nowObj + 1
exo[nowObj]['sceneSettings'] = vid
exo[nowObj]['effects'][0]['左右翻转'] = ch.flip // 2 * (nowObj % 2)
exo[nowObj]['start'], exo[nowObj]['end'] = 1 + ceil(v['start'] * exo['exedit']['rate']), ceil(v['end'] * exo['exedit']['rate'])
nowObj += 1
if nowObj != 0:
exo[nowObj-1]['end'] = exo['exedit']['length']
with open(path, 'w', encoding='GBK') as f:
for key, value in exo.items():
f.write('[{0}]\n'.format(key))
if type(value) == ExoVideo:
attid = 1
for ikey, ival in value.items():
if ikey == 'sceneSettings':
f.write('[{0}.0]\n'.format(key))
for skey, sval in ival.items():
if skey == 'scene':
f.write('={0}\n'.format(sval))
else:
f.write('{0}={1}\n'.format(skey, sval))
elif ikey == 'effects':
for e in ival:
f.write('[{0}.{1}]\n'.format(key, attid))
for akey, aval in e.items():
f.write('{0}={1}\n'.format(akey, aval))
attid += 1
else:
f.write('{0}={1}\n'.format(ikey, ival))
else:
for ikey, ival in value.items():
f.write('{0}={1}\n'.format(ikey, ival))
QMessageBox.information(self, '导出完毕', 'EXO 文件已成功导出。')
def getPath(self, prvPath, prefix, default):
global exts
for i in [default, *exts]:
nowPath = normpath(prvPath + '/' + toFileName(prefix + '.' + i))
if exists(nowPath):
return nowPath
return normpath(prvPath + '/' + toFileName(prefix + '.' + default))
def refresh(self):
for i in self.channels:
if i.auto:
i.path = self.getPath(self.defSrcPathLE.text(), i.name, self.extLE.text())
i.exists = exists(i.path)
self.renderList()
def renderList(self):
self.chlLstWid.clear()
for index, i in enumerate(self.channels):
item = QTreeWidgetItem(self.chlLstWid)
if not i.enabled:
item.setText(0, '已禁用')
item.setForeground(0, QBrush(QColor('#C0C0C0')))
elif i.exists:
item.setText(0, '正常')
item.setForeground(0, QBrush(QColor('#009900')))
else:
item.setText(0, '文件不存在')
item.setForeground(0, QBrush(Qt.red))
item.setText(1, str(index))
item.setText(2, i.name)
item.setText(3, str(i.size()))
item.setText(4, i.path)
i.item = item
self.chlLstWid.addTopLevelItem(item)
for i in range(5):
self.chlLstWid.resizeColumnToContents(i)
self.propGrp.setEnabled(self.nowChl != -1)
def render(self):
# Basic window properties
self.setWindowTitle(self.titlePref)
# Show status bar
self.statusBar()
# Show menu
menuBar = self.menuBar()
for name, column in self.menu.items():
menu = menuBar.addMenu('&' + name)
for i in column:
if i.name == '|':
menu.addSeparator()
else:
menu.addAction(i.action)
# Show workspace
prjPropGrp = QGroupBox('工程设置', self)
prjPropGrpLyt = QVBoxLayout()
geomLyt = QHBoxLayout()
self.geomWLE = QLineEdit(prjPropGrp)
self.geomHLE = QLineEdit(prjPropGrp)
self.fps = QLineEdit(prjPropGrp)
self.sr = QLineEdit(prjPropGrp)
self.extLE = QLineEdit(prjPropGrp)
self.bpmLE = QLineEdit(prjPropGrp)
self.geomWLE.setText('1920')
self.geomHLE.setText('1080')
self.fps.setText('60')
self.sr.setText('48000')
self.extLE.setText('mp4')
self.geomWLE.setValidator(QIntValidator(1, 100000, self))
self.geomHLE.setValidator(QIntValidator(1, 100000, self))
self.fps.setValidator(QIntValidator(1, 10000, self))
self.sr.setValidator(QIntValidator(0, 22579200, self))
self.extLE.setValidator(QRegularExpressionValidator(QRegularExpression('^[a-zA-Z0-9]*$')))
self.bpmLE.setValidator(QRegularExpressionValidator(QRegularExpression('^[0-9]*$')))
self.geomWLE.setFixedWidth(40)
self.geomHLE.setFixedWidth(40)
self.fps.setFixedWidth(40)
self.sr.setFixedWidth(40)
self.extLE.setFixedWidth(40)
geomLyt.addWidget(QLabel('图像大小'))
geomLyt.addWidget(self.geomWLE)
geomLyt.addWidget(QLabel('×'))
geomLyt.addWidget(self.geomHLE)
geomLyt.addStretch()
geomLyt.addWidget(QLabel('帧速率'))
geomLyt.addWidget(self.fps)
geomLyt.addStretch()
geomLyt.addWidget(QLabel('音频采样率'))
geomLyt.addWidget(self.sr)
srcLyt = QHBoxLayout()
srcLyt.addWidget(QLabel('首选素材扩展名'))
srcLyt.addWidget(self.extLE)
srcLyt.addStretch()
srcLyt.addWidget(QLabel('BPM'))
srcLyt.addWidget(self.bpmLE)
srcLyt.addStretch()
defSrcSel = QHBoxLayout()
defSrcSel.addWidget(QLabel('默认素材位置'))
self.defSrcPathLE = QLineEdit(prjPropGrp)
self.defSrcPathLE.setText(normpath(expanduser("~/Desktop")))
self.defSrcPathLE.installEventFilter(DropFileHandler(self))
defSrcSel.addWidget(self.defSrcPathLE)
defSrcSelBtn = QPushButton('...')
defSrcSelBtn.clicked.connect(self.setDefSrcPath)
defSrcSel.addWidget(defSrcSelBtn)
defChkLyt = QHBoxLayout()
self.defAlpha = QCheckBox('默认导入Alpha通道', prjPropGrp)
self.defFlip = QCheckBox('默认启用左右翻转', prjPropGrp)
self.defFlip.setCheckState(2)
defApplyBtn = QPushButton('应用')
defApplyBtn.clicked.connect(self.apply)
defChkLyt.addWidget(self.defAlpha)
defChkLyt.addWidget(self.defFlip)
defChkLyt.addStretch()
defChkLyt.addWidget(defApplyBtn)
prjPropGrpLyt.addLayout(defSrcSel)
prjPropGrpLyt.addLayout(geomLyt)
prjPropGrpLyt.addLayout(srcLyt)
prjPropGrpLyt.addLayout(defChkLyt)
prjPropGrp.setLayout(prjPropGrpLyt)
lstGrp = QGroupBox('轨道列表', self)
lstGrpLyt = QVBoxLayout()
self.chlLstWid = QTreeWidget(self)
self.chlLstWid.setHeaderLabels(['状态', '编号', '音轨名称', '音符数', '素材路径'])
self.chlLstWid.setRootIsDecorated(False)
lstGrpLyt.addWidget(self.chlLstWid)
lstGrp.setLayout(lstGrpLyt)
self.chlLstWid.itemClicked.connect(self.onItemClicked)
self.propGrp = QGroupBox('轨道设置', self)
propGrpLyt = QVBoxLayout()
infoLyt = QHBoxLayout()
self.nowChlLE = QLineEdit(self.propGrp)
self.nowChlLE.setReadOnly(True)
infoLyt.addWidget(QLabel('音轨名称'))
infoLyt.addWidget(self.nowChlLE)
infoLyt.addStretch()
self.nowState = QCheckBox('启用轨道')
self.nowState.stateChanged.connect(self.onStateChanged)
srcSel = QHBoxLayout()
srcSel.addWidget(QLabel('素材路径'))
self.nowSrcPathLE = QLineEdit(self.propGrp)
self.nowSrcPathLE.textChanged.connect(self.onPathChanged)
self.nowSrcPathLE.installEventFilter(DropFileHandler(self))
srcSel.addWidget(self.nowSrcPathLE)
srcSelBtn = QPushButton('...')
srcSelBtn.clicked.connect(self.setNowSrcPath)
srcSel.addWidget(srcSelBtn)
chkLyt = QHBoxLayout()
self.nowAlpha = QCheckBox('导入Alpha通道', self.propGrp)
self.nowAlpha.stateChanged.connect(self.onAlphaChanged)
self.nowFlip = QCheckBox('启用左右翻转', self.propGrp)
self.nowFlip.stateChanged.connect(self.onFlipChanged)
chkLyt.addWidget(self.nowAlpha)
chkLyt.addWidget(self.nowFlip)
propGrpLyt.addLayout(infoLyt)
propGrpLyt.addWidget(self.nowState)
propGrpLyt.addLayout(srcSel)
propGrpLyt.addLayout(chkLyt)
propGrpLyt.addStretch()
self.propGrp.setLayout(propGrpLyt)
chlUtls = QHBoxLayout()
chlUtls.addWidget(lstGrp)
chlUtls.addWidget(self.propGrp)
mainLyt = QVBoxLayout()
mainLyt.addWidget(prjPropGrp)
mainLyt.addLayout(chlUtls)
wid = QWidget(self)
self.setCentralWidget(wid)
wid.setLayout(mainLyt)
self.renderList()
self.show()
def apply(self):
for i in self.channels:
if i.auto:
i.alpha = self.defAlpha.checkState()
i.flip = self.defFlip.checkState()
if self.bpmLE.text() != '':
nowBPM = float(self.bpmLE.text())
if not self.tempo or self.tempo != nowBPM:
self.tempo = nowBPM
self.handleMidi(bpm2tempo(nowBPM))
self.refresh()
@QtCore.pyqtSlot()
def onFocusChanged(self):
self.refresh()
@QtCore.pyqtSlot(QtWidgets.QTreeWidgetItem, int)
def onItemClicked(self, it, col):
self.nowChl = int(it.text(1))
self.propGrp.setEnabled(True)
self.nowItem = it
self.nowChlLE.setText(self.channels[self.nowChl].name)
self.nowSrcPathLE.setText(self.channels[self.nowChl].path)
self.nowAlpha.setCheckState(self.channels[self.nowChl].alpha)
self.nowFlip.setCheckState(self.channels[self.nowChl].flip)
self.nowState.setCheckState(self.channels[self.nowChl].enabled * 2)
@QtCore.pyqtSlot(str)
def onPathChanged(self, new):
if self.nowChl == -1 or self.channels[self.nowChl].path == new:
return
self.channels[self.nowChl].path = new
self.channels[self.nowChl].clearAuto()
self.refresh()
@QtCore.pyqtSlot(int)
def onAlphaChanged(self, new):
if self.nowChl == -1 or self.channels[self.nowChl].alpha == new:
return
self.channels[self.nowChl].alpha = new
self.channels[self.nowChl].clearAuto()
@QtCore.pyqtSlot(int)
def onFlipChanged(self, new):
if self.nowChl == -1 or self.channels[self.nowChl].flip == new:
return
self.channels[self.nowChl].flip = new
self.channels[self.nowChl].clearAuto()
@QtCore.pyqtSlot(int)
def onStateChanged(self, new):
if self.nowChl == -1:
return
self.channels[self.nowChl].enabled = new == 2
self.refresh()
if __name__ == '__main__':
app = QApplication(argv)
ex = Midi2ExoMain()
exit(app.exec_())