def __init__(self, view):
self.view = view
loader = QtUiTools.QUiLoader()
uifile = QtCore.QFile(':/ui/ddScreenGrabber.ui')
assert uifile.open(uifile.ReadOnly)
self.frameCount = 0
self.widget = loader.load(uifile)
self.ui = WidgetDict(self.widget.children())
self.ui.lockViewSizeCheck.connect('clicked()', self.onLockViewSize)
self.ui.screenshotOutputBrowseButton.connect(
'clicked()', self.onChooseScreenshotOutputDir)
self.ui.movieOutputBrowseButton.connect('clicked()',
self.onChooseMovieOutputDir)
self.ui.saveScreenshotButton.connect('clicked()',
self.onSaveScreenshot)
self.ui.recordMovieButton.connect('clicked()', self.onRecordMovie)
self.ui.viewSizeCombo.connect('currentIndexChanged(const QString&)',
self.updateViewSize)
self.ui.viewHeightSpin.connect('valueChanged(int)',
self.onViewSizeChanged)
self.ui.viewWidthSpin.connect('valueChanged(int)',
self.onViewSizeChanged)
self.updateViewSize()
self.onLockViewSize()
self.recordTimer = QtCore.QTimer()
self.recordTimer.connect('timeout()', self.onRecordTimer)
self.fpsCounter = FPSCounter()
self.eventFilter = PythonQt.dd.ddPythonEventFilter()
self.ui.scrollArea.installEventFilter(self.eventFilter)
self.eventFilter.addFilteredEventType(QtCore.QEvent.Resize)
self.eventFilter.connect('handleEvent(QObject*, QEvent*)',
self.onEvent)
def __init__(self, view):
self.view = view
loader = QtUiTools.QUiLoader()
uifile = QtCore.QFile(':/ui/ddScreenGrabber.ui')
assert uifile.open(uifile.ReadOnly)
self.frameCount = 0
self.widget = loader.load(uifile)
self.ui = WidgetDict(self.widget.children())
self.ui.lockViewSizeCheck.connect('clicked()', self.onLockViewSize)
self.ui.screenshotOutputBrowseButton.connect('clicked()', self.onChooseScreenshotOutputDir)
self.ui.movieOutputBrowseButton.connect('clicked()', self.onChooseMovieOutputDir)
self.ui.saveScreenshotButton.connect('clicked()', self.onSaveScreenshot)
self.ui.recordMovieButton.connect('clicked()', self.onRecordMovie)
self.ui.viewSizeCombo.connect('currentIndexChanged(const QString&)', self.updateViewSize)
self.ui.viewHeightSpin.connect('valueChanged(int)', self.onViewSizeChanged)
self.ui.viewWidthSpin.connect('valueChanged(int)', self.onViewSizeChanged)
self.updateViewSize()
self.onLockViewSize()
self.recordTimer = QtCore.QTimer()
self.recordTimer.connect('timeout()', self.onRecordTimer)
self.fpsCounter = FPSCounter()
self.eventFilter = PythonQt.dd.ddPythonEventFilter()
self.ui.scrollArea.installEventFilter(self.eventFilter)
self.eventFilter.addFilteredEventType(QtCore.QEvent.Resize)
self.eventFilter.connect('handleEvent(QObject*, QEvent*)', self.onEvent)
class ScreenGrabberPanel(object):
def __init__(self, view):
self.view = view
loader = QtUiTools.QUiLoader()
uifile = QtCore.QFile(':/ui/ddScreenGrabber.ui')
assert uifile.open(uifile.ReadOnly)
self.frameCount = 0
self.widget = loader.load(uifile)
self.ui = WidgetDict(self.widget.children())
self.ui.lockViewSizeCheck.connect('clicked()', self.onLockViewSize)
self.ui.screenshotOutputBrowseButton.connect(
'clicked()', self.onChooseScreenshotOutputDir)
self.ui.movieOutputBrowseButton.connect('clicked()',
self.onChooseMovieOutputDir)
self.ui.saveScreenshotButton.connect('clicked()',
self.onSaveScreenshot)
self.ui.recordMovieButton.connect('clicked()', self.onRecordMovie)
self.ui.viewSizeCombo.connect('currentIndexChanged(const QString&)',
self.updateViewSize)
self.ui.viewHeightSpin.connect('valueChanged(int)',
self.onViewSizeChanged)
self.ui.viewWidthSpin.connect('valueChanged(int)',
self.onViewSizeChanged)
self.updateViewSize()
self.onLockViewSize()
self.recordTimer = QtCore.QTimer()
self.recordTimer.connect('timeout()', self.onRecordTimer)
self.fpsCounter = FPSCounter()
self.eventFilter = PythonQt.dd.ddPythonEventFilter()
self.ui.scrollArea.installEventFilter(self.eventFilter)
self.eventFilter.addFilteredEventType(QtCore.QEvent.Resize)
self.eventFilter.connect('handleEvent(QObject*, QEvent*)',
self.onEvent)
def onEvent(self, obj, event):
minSize = self.ui.scrollArea.widget().minimumSizeHint.width(
) + self.ui.scrollArea.verticalScrollBar().width
self.ui.scrollArea.setMinimumWidth(minSize)
def dateTimeString(self):
return datetime.datetime.fromtimestamp(
time.time()).strftime('%Y-%m-%d_%H:%M:%S')
def movieOutputDirectory(self):
return os.path.expanduser(self.ui.movieOutputDirectory.text)
def screenshotOutputDirectory(self):
return os.path.expanduser(self.ui.screenshotOutputDirectory.text)
def captureRate(self):
return self.ui.captureRateSpin.value
def chooseDirectory(self):
return QtGui.QFileDialog.getExistingDirectory(
app.getMainWindow(), "Choose directory...",
self.movieOutputDirectory())
def ensureDirectoryIsWritable(self, dirname):
if not os.path.isdir(dirname):
try:
os.makedirs(dirname)
except OSError:
app.showErrorMessage('Error creating directory: %s' % dirname)
return False
if not os.access(dirname, os.W_OK | os.X_OK):
app.showErrorMessage('Directory is not writable: %s' % dirname)
return False
return True
def onChooseScreenshotOutputDir(self):
newDir = self.chooseDirectory()
if newDir:
self.ui.screenshotOutputDirectory.text = newDir
def onChooseMovieOutputDir(self):
newDir = self.chooseDirectory()
if newDir:
self.ui.movieOutputDirectory.text = newDir
def onSaveScreenshot(self):
outDir = self.screenshotOutputDirectory()
if not self.ensureDirectoryIsWritable(outDir):
return
filename = os.path.join(outDir,
'Screenshot-' + self.dateTimeString() + '.png')
saveScreenshot(self.view, filename)
app.getMainWindow().statusBar().showMessage('Saved: ' + filename, 2000)
def nextMovieFileName(self):
filename = os.path.join(self.movieOutputDirectory(),
'frame_%07d.tiff' % self.frameCount)
self.frameCount += 1
return filename
def updateRecordingStats(self):
isRecordMode = self.ui.recordMovieButton.checked
currentRate = 0.0
writeQueue = 0.0
self.ui.currentRateValueLabel.setText('%.1f' % currentRate)
self.ui.writeQueueValueLabel.setText('%.1f' % currentRate)
def isRecordMode(self):
return self.ui.recordMovieButton.checked
def updateRecordingButtons(self):
isRecordMode = self.isRecordMode()
self.ui.movieOutputDirectory.setEnabled(not isRecordMode)
self.ui.movieOutputBrowseButton.setEnabled(not isRecordMode)
self.ui.captureRateSpin.setEnabled(not isRecordMode)
self.ui.captureRateLabel.setEnabled(not isRecordMode)
self.ui.moveOutputDirectoryLabel.setEnabled(not isRecordMode)
self.ui.currentRateLabel.setEnabled(isRecordMode)
self.ui.currentRateValueLabel.setEnabled(isRecordMode)
self.ui.writeQueueLabel.setEnabled(isRecordMode)
self.ui.writeQueueValueLabel.setEnabled(isRecordMode)
self.updateRecordingStats()
def onRecordMovie(self):
# Enforce even width number, otherwise avconv will fail
_width = (self.view.width if self.view.width %
2 == 0 else self.view.width + 1)
_height = (self.view.height if self.view.height %
2 == 0 else self.view.height + 1)
self.view.setFixedSize(_width, _height)
if self.isRecordMode():
self.startRecording()
else:
self.stopRecording()
self.updateRecordingButtons()
def startRecording(self):
self.frameCount = 0
if not self.ensureDirectoryIsWritable(self.movieOutputDirectory()):
self.ui.recordMovieButton.checked = False
return
existingFiles = glob.glob(
os.path.join(self.movieOutputDirectory(), '*.tiff'))
if len(existingFiles):
choice = QtGui.QMessageBox.question(
app.getMainWindow(), 'Continue?',
'There are existing image files in the output directory. They will be deleted prior to recording. Continue?',
QtGui.QMessageBox.Yes | QtGui.QMessageBox.No,
QtGui.QMessageBox.No)
if choice == QtGui.QMessageBox.No:
self.ui.recordMovieButton.checked = False
return
for fileToRemove in existingFiles:
os.remove(fileToRemove)
self.fpsCounter.tick()
self.startT = time.time()
interval = int(round(1000.0 / self.captureRate()))
self.recordTimer.setInterval(interval)
self.recordTimer.start()
def stopRecording(self):
self.recordTimer.stop()
if self.frameCount > 0:
self.showEncodingDialog()
def showEncodingDialog(self):
msg = 'Recorded %d frames. For encoding, use this command line:\n\n\n' % self.frameCount
msg += ' cd "%s"\n\n' % self.movieOutputDirectory()
msg += ' avconv -r %d -i frame_%%07d.tiff \\\n' % self.captureRate()
msg += ' -vcodec libx264 \\\n'
msg += ' -preset slow \\\n'
msg += ' -crf 18 \\\n'
msg += ' output.mp4\n\n\n'
app.showInfoMessage(msg, title='Recording Stopped')
def updateViewSize(self):
current = str(self.ui.viewSizeCombo.currentText)
useCustom = (current == 'Custom')
self.ui.viewWidthSpin.setEnabled(useCustom)
self.ui.viewHeightSpin.setEnabled(useCustom)
if useCustom:
return
else:
viewSize = [
int(value) for value in current.split(' ')[0].split('x')
]
self.ui.viewWidthSpin.value = viewSize[0]
self.ui.viewHeightSpin.value = viewSize[1]
def onViewSizeChanged(self):
self.onLockViewSize()
def viewSize(self):
return self.ui.viewWidthSpin.value, self.ui.viewHeightSpin.value
def lockViewSize(self):
self.view.setFixedSize(*self.viewSize())
self.ui.viewSizeFrame.setEnabled(True)
def unlockViewSize(self):
self.ui.viewSizeFrame.setEnabled(False)
qtwidgetMaxViewSize = 16777215
self.view.setFixedSize(qtwidgetMaxViewSize, qtwidgetMaxViewSize)
def onLockViewSize(self):
if self.ui.lockViewSizeCheck.checked:
self.lockViewSize()
else:
self.unlockViewSize()
def onRecordTimer(self):
saveScreenshot(self.view, self.nextMovieFileName(), shouldRender=False)
self.fpsCounter.tick()
tNow = time.time()
if tNow - self.startT > 1.0:
self.startT = tNow
self.ui.currentRateValueLabel.text = '%.1f' % self.fpsCounter.getAverageFPS(
)
class ScreenGrabberPanel(object):
def __init__(self, view):
self.view = view
loader = QtUiTools.QUiLoader()
uifile = QtCore.QFile(':/ui/ddScreenGrabber.ui')
assert uifile.open(uifile.ReadOnly)
self.frameCount = 0
self.widget = loader.load(uifile)
self.ui = WidgetDict(self.widget.children())
self.ui.lockViewSizeCheck.connect('clicked()', self.onLockViewSize)
self.ui.screenshotOutputBrowseButton.connect('clicked()', self.onChooseScreenshotOutputDir)
self.ui.movieOutputBrowseButton.connect('clicked()', self.onChooseMovieOutputDir)
self.ui.saveScreenshotButton.connect('clicked()', self.onSaveScreenshot)
self.ui.recordMovieButton.connect('clicked()', self.onRecordMovie)
self.ui.viewSizeCombo.connect('currentIndexChanged(const QString&)', self.updateViewSize)
self.ui.viewHeightSpin.connect('valueChanged(int)', self.onViewSizeChanged)
self.ui.viewWidthSpin.connect('valueChanged(int)', self.onViewSizeChanged)
self.updateViewSize()
self.onLockViewSize()
self.recordTimer = QtCore.QTimer()
self.recordTimer.connect('timeout()', self.onRecordTimer)
self.fpsCounter = FPSCounter()
self.eventFilter = PythonQt.dd.ddPythonEventFilter()
self.ui.scrollArea.installEventFilter(self.eventFilter)
self.eventFilter.addFilteredEventType(QtCore.QEvent.Resize)
self.eventFilter.connect('handleEvent(QObject*, QEvent*)', self.onEvent)
def onEvent(self, obj, event):
minSize = self.ui.scrollArea.widget().minimumSizeHint.width() + self.ui.scrollArea.verticalScrollBar().width
self.ui.scrollArea.setMinimumWidth(minSize)
def dateTimeString(self):
return datetime.datetime.fromtimestamp(time.time()).strftime('%Y-%m-%d_%H:%M:%S')
def movieOutputDirectory(self):
return os.path.expanduser(self.ui.movieOutputDirectory.text)
def screenshotOutputDirectory(self):
return os.path.expanduser(self.ui.screenshotOutputDirectory.text)
def captureRate(self):
return self.ui.captureRateSpin.value
def chooseDirectory(self):
return QtGui.QFileDialog.getExistingDirectory(app.getMainWindow(), "Choose directory...", self.movieOutputDirectory())
def ensureDirectoryIsWritable(self, dirname):
if not os.path.isdir(dirname):
try:
os.makedirs(dirname)
except OSError:
app.showErrorMessage('Error creating directory: %s' % dirname)
return False
if not os.access(dirname, os.W_OK | os.X_OK):
app.showErrorMessage('Directory is not writable: %s' % dirname)
return False
return True
def onChooseScreenshotOutputDir(self):
newDir = self.chooseDirectory()
if newDir:
self.ui.screenshotOutputDirectory.text = newDir
def onChooseMovieOutputDir(self):
newDir = self.chooseDirectory()
if newDir:
self.ui.movieOutputDirectory.text = newDir
def onSaveScreenshot(self):
outDir = self.screenshotOutputDirectory()
if not self.ensureDirectoryIsWritable(outDir):
return
filename = os.path.join(outDir, 'Screenshot-' + self.dateTimeString() + '.png')
saveScreenshot(self.view, filename)
app.getMainWindow().statusBar().showMessage('Saved: ' + filename, 2000)
def nextMovieFileName(self):
filename = os.path.join(self.movieOutputDirectory(), 'frame_%07d.tiff' % self.frameCount)
self.frameCount += 1
return filename
def updateRecordingStats(self):
isRecordMode = self.ui.recordMovieButton.checked
currentRate = 0.0
writeQueue = 0.0
self.ui.currentRateValueLabel.setText('%.1f' % currentRate)
self.ui.writeQueueValueLabel.setText('%.1f' % currentRate)
def isRecordMode(self):
return self.ui.recordMovieButton.checked
def updateRecordingButtons(self):
isRecordMode = self.isRecordMode()
self.ui.movieOutputDirectory.setEnabled(not isRecordMode)
self.ui.movieOutputBrowseButton.setEnabled(not isRecordMode)
self.ui.captureRateSpin.setEnabled(not isRecordMode)
self.ui.captureRateLabel.setEnabled(not isRecordMode)
self.ui.moveOutputDirectoryLabel.setEnabled(not isRecordMode)
self.ui.currentRateLabel.setEnabled(isRecordMode)
self.ui.currentRateValueLabel.setEnabled(isRecordMode)
self.ui.writeQueueLabel.setEnabled(isRecordMode)
self.ui.writeQueueValueLabel.setEnabled(isRecordMode)
self.updateRecordingStats()
def onRecordMovie(self):
# Enforce even width number, otherwise avconv will fail
_width = (self.view.width if self.view.width % 2 == 0 else self.view.width + 1)
_height = (self.view.height if self.view.height % 2 == 0 else self.view.height + 1)
self.view.setFixedSize(_width, _height)
if self.isRecordMode():
self.startRecording()
else:
self.stopRecording()
self.updateRecordingButtons()
def startRecording(self):
self.frameCount = 0
if not self.ensureDirectoryIsWritable(self.movieOutputDirectory()):
self.ui.recordMovieButton.checked = False
return
existingFiles = glob.glob(os.path.join(self.movieOutputDirectory(), '*.tiff'))
if len(existingFiles):
choice = QtGui.QMessageBox.question(app.getMainWindow(), 'Continue?',
'There are existing image files in the output directory. They will be deleted prior to recording. Continue?',
QtGui.QMessageBox.Yes | QtGui.QMessageBox.No,
QtGui.QMessageBox.No)
if choice == QtGui.QMessageBox.No:
self.ui.recordMovieButton.checked = False
return
for fileToRemove in existingFiles:
os.remove(fileToRemove)
self.fpsCounter.tick()
self.startT = time.time()
interval = int(round(1000.0 / self.captureRate()))
self.recordTimer.setInterval(interval)
self.recordTimer.start()
def stopRecording(self):
self.recordTimer.stop()
if self.frameCount > 0:
self.showEncodingDialog()
def showEncodingDialog(self):
msg = 'Recorded %d frames. For encoding, use this command line:\n\n\n' % self.frameCount
msg += ' cd "%s"\n\n' % self.movieOutputDirectory()
msg += ' avconv -r %d -i frame_%%07d.tiff \\\n' % self.captureRate()
msg += ' -vcodec libx264 \\\n'
msg += ' -preset slow \\\n'
msg += ' -crf 18 \\\n'
msg += ' output.mp4\n\n\n'
app.showInfoMessage(msg, title='Recording Stopped')
def updateViewSize(self):
current = str(self.ui.viewSizeCombo.currentText)
useCustom = (current == 'Custom')
self.ui.viewWidthSpin.setEnabled(useCustom)
self.ui.viewHeightSpin.setEnabled(useCustom)
if useCustom:
return
else:
viewSize = [int(value) for value in current.split(' ')[0].split('x')]
self.ui.viewWidthSpin.value = viewSize[0]
self.ui.viewHeightSpin.value = viewSize[1]
def onViewSizeChanged(self):
self.onLockViewSize()
def viewSize(self):
return self.ui.viewWidthSpin.value, self.ui.viewHeightSpin.value
def lockViewSize(self):
self.view.setFixedSize(*self.viewSize())
self.ui.viewSizeFrame.setEnabled(True)
def unlockViewSize(self):
self.ui.viewSizeFrame.setEnabled(False)
qtwidgetMaxViewSize = 16777215
self.view.setFixedSize(qtwidgetMaxViewSize, qtwidgetMaxViewSize)
def onLockViewSize(self):
if self.ui.lockViewSizeCheck.checked:
self.lockViewSize()
else:
self.unlockViewSize()
def onRecordTimer(self):
saveScreenshot(self.view, self.nextMovieFileName(), shouldRender=False)
self.fpsCounter.tick()
tNow = time.time()
if tNow - self.startT > 1.0:
self.startT = tNow
self.ui.currentRateValueLabel.text = '%.1f' % self.fpsCounter.getAverageFPS()
