I need help on taking a flash webvideo screenshot on Pyside or PyQt4

rasheedahmed27

i have an issue on taking a screenshot of the youtube video page.

in Pyside i have enabled flash function using below command to play video on Pyside browser

@ s.setAttribute(QWebSettings.PluginsEnabled, True)
s.setAttribute(QWebSettings.JavascriptEnabled, True)@

now my script can open video embedded website and playing videos but when i tried to capture screenshot it showing Black screen on video embedded place.

Script:

#!/usr/bin/env python
#-- coding:utf-8 --

@from PySide.QtCore import Qt, QUrl, QTimer, Slot
from PySide.QtGui import QApplication, QImage, QPainter
from PySide.QtWebKit import QWebView, QWebPage, QWebSettings
from PySide.QtNetwork import QNetworkRequest, QNetworkReply
import time, sys

class Render(QWebView):
def init(self, url, filename, image_crop, translate_page, parent=None):
super(Render, self).init(parent)
self.image_crop = image_crop
self.fileName = time.strftime("%Y%m%d%H%M%S",time.localtime()) +"_test.jpg"
self.finished = False

    # Settings
    s = self.page().settings()
    s.setAttribute(QWebSettings.AutoLoadImages, True)
    s.setAttribute(QWebSettings.PluginsEnabled, True)
    s.setAttribute(QWebSettings.JavascriptEnabled, True)
    s.setAttribute(QWebSettings.JavaEnabled, False)
    s.setAttribute(QWebSettings.JavascriptCanOpenWindows, False)
    s.setAttribute(QWebSettings.DeveloperExtrasEnabled, True)    

    #self.page().mainFrame().setScrollBarPolicy(Qt.Horizontal, Qt.ScrollBarAlwaysOff)
    self.page().mainFrame().setScrollBarPolicy(Qt.Vertical, Qt.ScrollBarAlwaysOff)

    self.timerScreen = QTimer()
    self.timerScreen.setInterval(10000)
    self.timerScreen.setSingleShot(True)
    self.timerScreen.timeout.connect(self.takeScreenshot)

    self.loadFinished.connect(self.timerScreen.start)
    self.load(QUrl(url)) 

@Slot(QNetworkReply)           
def takeScreenshot(self):        
    [x,y,width,height] = self.image_crop
    frame = self.page().mainFrame()
    size = frame.contentsSize()
    size.setWidth(1000)
    size.setHeight(2000)
    self.page().setViewportSize(size)
    image = QImage(self.page().viewportSize(), QImage.Format_ARGB32)
    painter = QPainter(image)
    frame.render(painter)
    painter.end()
    image1 = image.copy(x,y,width,height)
    image1.save(self.fileName)
    self.finished = True

def run(url, filename, image_crop, translate_page):
app=QApplication.instance()
if not app:
app = QApplication(sys.argv)
app.setApplicationName('myWindow')
r = Render(url, filename, image_crop, translate_page)
r.show()
while not r.finished:
app.processEvents()
time.sleep(0.01)
return r.filepath

Screenshot_Name = run("http://www.youtube.com/watch?v=frrvOnEZO3k", 'www.youtube.com', [0,0,1000,1000], translate_page='NO')
print Screenshot_Name@

Luke_del

The qt library probably can't take screenshots of content in plugins.

You can try the workaround I describe in stackoverflow.com/a/13976054/1699750 of taking a screenshot using other tools like the imagemagic import command

rasheedahmed27

Thanks for the quick response. is there any other methods to take screenshot with video from self.page().mainFrame() ?