import gi
from gi.repository import Gtk,Gdk
from gi.repository.GdkPixbuf import Pixbuf, InterpType
from PIL import Image
import inspect
window = Gdk.get_default_root_window()
pb = Gdk.pixbuf_get_from_window(window, 840,380,240,230)
height=pb.get_height()
width=pb.get_width()
#print pb.get_pixels()
im = Image.frombuffer("RGB", (width,height) ,pb.get_pixels(), 'raw', 'RGB', 0, 1)
im.save('f.png')
这是我在python中捕获截图的代码。 我需要它来通过处理这个镜头给我的图像在电脑上玩游戏。 但我的问题是它对于玩游戏来说太慢了。 所以我需要一个非常快速的方法来捕获至少25 fps
答案 0 :(得分：0)
下面的代码是截取pyside的示例代码。少量编辑可以帮助您获得结果。
#!/usr/bin/env python
#############################################################################
##
## Copyright (C) 2005-2005 Trolltech AS. All rights reserved.
##
## This file is part of the example classes of the Qt Toolkit.
##
## This file may be used under the terms of the GNU General Public
## License version 2.0 as published by the Free Software Foundation
## and appearing in the file LICENSE.GPL included in the packaging of
## this file. Please review the following information to ensure GNU
## General Public Licensing requirements will be met:
## http://www.trolltech.com/products/qt/opensource.html
##
## If you are unsure which license is appropriate for your use, please
## review the following information:
## http://www.trolltech.com/products/qt/licensing.html or contact the
## sales department at sales@trolltech.com.
##
## This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
## WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
##
#############################################################################
from PySide import QtCore, QtGui
class Screenshot(QtGui.QWidget):
def __init__(self):
super(Screenshot, self).__init__()
self.screenshotLabel = QtGui.QLabel()
self.screenshotLabel.setSizePolicy(QtGui.QSizePolicy.Expanding,
QtGui.QSizePolicy.Expanding)
self.screenshotLabel.setAlignment(QtCore.Qt.AlignCenter)
self.screenshotLabel.setMinimumSize(240, 160)
self.createOptionsGroupBox()
self.createButtonsLayout()
mainLayout = QtGui.QVBoxLayout()
mainLayout.addWidget(self.screenshotLabel)
mainLayout.addWidget(self.optionsGroupBox)
mainLayout.addLayout(self.buttonsLayout)
self.setLayout(mainLayout)
self.shootScreen()
self.delaySpinBox.setValue(5)
self.setWindowTitle("Screenshot")
self.resize(300, 200)
def resizeEvent(self, event):
scaledSize = self.originalPixmap.size()
scaledSize.scale(self.screenshotLabel.size(), QtCore.Qt.KeepAspectRatio)
if not self.screenshotLabel.pixmap() or scaledSize != self.screenshotLabel.pixmap().size():
self.updateScreenshotLabel()
def newScreenshot(self):
if self.hideThisWindowCheckBox.isChecked():
self.hide()
self.newScreenshotButton.setDisabled(True)
QtCore.QTimer.singleShot(self.delaySpinBox.value() * 1000,
self.shootScreen)
def saveScreenshot(self):
format = 'png'
initialPath = QtCore.QDir.currentPath() + "/untitled." + format
fileName,_ = QtGui.QFileDialog.getSaveFileName(self, "Save As",
initialPath,
"%s Files (*.%s);;All Files (*)" % (format.upper(), format))
if fileName:
self.originalPixmap.save(fileName, format)
def shootScreen(self):
if self.delaySpinBox.value() != 0:
QtGui.qApp.beep()
# Garbage collect any existing image first.
self.originalPixmap = None
self.originalPixmap = QtGui.QPixmap.grabWindow(QtGui.QApplication.desktop().winId())
self.updateScreenshotLabel()
self.newScreenshotButton.setDisabled(False)
if self.hideThisWindowCheckBox.isChecked():
self.show()
def updateCheckBox(self):
if self.delaySpinBox.value() == 0:
self.hideThisWindowCheckBox.setDisabled(True)
else:
self.hideThisWindowCheckBox.setDisabled(False)
def createOptionsGroupBox(self):
self.optionsGroupBox = QtGui.QGroupBox("Options")
self.delaySpinBox = QtGui.QSpinBox()
self.delaySpinBox.setSuffix(" s")
self.delaySpinBox.setMaximum(60)
self.delaySpinBox.valueChanged.connect(self.updateCheckBox)
self.delaySpinBoxLabel = QtGui.QLabel("Screenshot Delay:")
self.hideThisWindowCheckBox = QtGui.QCheckBox("Hide This Window")
optionsGroupBoxLayout = QtGui.QGridLayout()
optionsGroupBoxLayout.addWidget(self.delaySpinBoxLabel, 0, 0)
optionsGroupBoxLayout.addWidget(self.delaySpinBox, 0, 1)
optionsGroupBoxLayout.addWidget(self.hideThisWindowCheckBox, 1, 0, 1, 2)
self.optionsGroupBox.setLayout(optionsGroupBoxLayout)
def createButtonsLayout(self):
self.newScreenshotButton = self.createButton("New Screenshot",
self.newScreenshot)
self.saveScreenshotButton = self.createButton("Save Screenshot",
self.saveScreenshot)
self.quitScreenshotButton = self.createButton("Quit", self.close)
self.buttonsLayout = QtGui.QHBoxLayout()
self.buttonsLayout.addStretch()
self.buttonsLayout.addWidget(self.newScreenshotButton)
self.buttonsLayout.addWidget(self.saveScreenshotButton)
self.buttonsLayout.addWidget(self.quitScreenshotButton)
def createButton(self, text, member):
button = QtGui.QPushButton(text)
button.clicked.connect(member)
return button
def updateScreenshotLabel(self):
self.screenshotLabel.setPixmap(self.originalPixmap.scaled(
self.screenshotLabel.size(), QtCore.Qt.KeepAspectRatio,
QtCore.Qt.SmoothTransformation))
if __name__ == '__main__':
import sys
app = QtGui.QApplication(sys.argv)
screenshot = Screenshot()
screenshot.show()
sys.exit(app.exec_())
答案 1 :(得分：0)
我根据您的要求编写了程序。它在同一目录中创建文件夹Capture。 Png图像将保存在＆＃34; Capture＆＃34;文件夹中。
如果您需要超过25fps，我建议使用OBS软件。
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file 'ScreenCapture.ui'
#
# Created: Sat May 06 15:32:13 2017
# by: pyside-uic 0.2.15 running on PySide 1.2.4
#
# WARNING! All changes made in this file will be lost!
from PySide import QtCore, QtGui
class Ui_ScreenCapture(QtGui.QWidget):
def __init__(self):
QtGui.QWidget.__init__(self)
self.setupUi(self)
self.CreateCaptureFolder()
def setupUi(self, ScreenCapture):
ScreenCapture.setObjectName("ScreenCapture")
ScreenCapture.resize(180, 90)
self.verticalLayout = QtGui.QVBoxLayout(ScreenCapture)
self.verticalLayout.setObjectName("verticalLayout")
self.gridLayout = QtGui.QGridLayout()
self.gridLayout.setObjectName("gridLayout")
self.start = QtGui.QPushButton(ScreenCapture)
self.start.setObjectName("start")
self.gridLayout.addWidget(self.start, 1, 0, 1, 1)
#self.stop = QtGui.QPushButton(ScreenCapture)
#self.stop.setObjectName("stop")
#self.gridLayout.addWidget(self.stop, 1, 1, 1, 1)
self.sbfps = QtGui.QSpinBox(ScreenCapture)
self.sbfps.setPrefix("")
self.sbfps.setMinimum(1)
self.sbfps.setMaximum(60)
self.sbfps.setObjectName("sbfps")
self.gridLayout.addWidget(self.sbfps, 0, 1, 1, 1)
self.label = QtGui.QLabel(ScreenCapture)
self.label.setObjectName("label")
self.gridLayout.addWidget(self.label, 0, 0, 1, 1)
self.verticalLayout.addLayout(self.gridLayout)
self.retranslateUi(ScreenCapture)
QtCore.QMetaObject.connectSlotsByName(ScreenCapture)
def retranslateUi(self, ScreenCapture):
ScreenCapture.setWindowTitle(QtGui.QApplication.translate("ScreenCapture", "Screen Capture", None, QtGui.QApplication.UnicodeUTF8))
self.start.setText(QtGui.QApplication.translate("ScreenCapture", "Start", None, QtGui.QApplication.UnicodeUTF8))
#self.stop.setText(QtGui.QApplication.translate("ScreenCapture", "Stop", None, QtGui.QApplication.UnicodeUTF8))
self.sbfps.setSuffix(QtGui.QApplication.translate("ScreenCapture", " fps", None, QtGui.QApplication.UnicodeUTF8))
self.label.setText(QtGui.QApplication.translate("ScreenCapture", "Screen Shot FPS", None, QtGui.QApplication.UnicodeUTF8))
###########################################################################
self.fname = 1
self.start.clicked.connect(self.loop)
###########################################################################
def CreateCaptureFolder(self):
if QtCore.QDir("Capture").exists():
print "Folder Exists"
pass
else:
print "Capture folder not exists"
QtCore.QDir().mkdir("Capture")
print "Created folder capture"
def Capture(self):
self.start.setEnabled(False)
self.originalPixmap = None
self.originalPixmap = QtGui.QPixmap.grabWindow(QtGui.QApplication.desktop().winId())
format = 'png'
initialPath = QtCore.QDir.currentPath() + "/Capture/"
fileName = initialPath + str(self.fname) + '.' + format
if fileName:
self.originalPixmap.save(fileName, format)
self.fname+=1
def loop(self):
self.timer = QtCore.QTimer()
self.timer.setSingleShot(False)
self.timer.timeout.connect(self.Capture)
self.timer.start(1000/self.sbfps.value())
def stop(self):
self.timer.stop()
if __name__ == "__main__":
import sys
app = QtGui.QApplication(sys.argv)
if not app:
app = QtGui.QApplication(sys.argv)
ui = Ui_ScreenCapture()
ui.show()
sys.exit(app.exec_())