View Full Version : Avi File Class
ascii
9th November 2008, 15:53
Hi..
i want to do an easy screen recorder. But i can't create avi file. i think if i create an avi file i can add an pixmap or png file to avi file. i am trying windows avi file but it works for mfc but dont work with Qt. is there any solution for this problem. Or sample code. i couldnt find.
is there any alternative solution for screen record api, i can try.
please help me.. this problem make me crazy.
thanks...
caduel
9th November 2008, 18:50
reading the docs does help sometimes: desktop-screenshot
SunnySan
10th November 2008, 11:58
an idea:
use screenshot to take a number of pictures every 0.5sec or less
then use
Qprocess with mencoder to transform the images into an .avi file
QProcess *mencodeProcess = new QProcess(this);
mencodeProcess->setWorkingDirectory("C:/JPG");
QStringList arg;
QString program = "C:/JPG/mencoder";
arg << "mf://*.jpg" << "-mf" << "w=800:h=600:fps=25:type=jpg" << "-ovc"
<< "lavc" << "-lavcopts" << "vcodec=mpeg4" << "-oac" << "copy"
<< "-o" << "a.avi";//tested worked fine
mencodeProcess->start(program, arg);
QString msg;
if (!mencodeProcess->waitForFinished(1000))
msg = "Mencoder failed:" + mencodeProcess->errorString();
else
msg = "Mencoder output:" + mencodeProcess->readAll();
qDebug() << msg;
I use this little code before to transform a sequence of jpg to an video .avi
ascii
10th November 2008, 22:30
so thank you...
mencoder works... :)
its work but i have another problem now.:confused:
i couldn't capture screen with mouse, is there any way?:rolleyes:
Or can i draw a mouse arrow at event.x() and event.y() position on captured QPixmap?:rolleyes:
ascii
12th November 2008, 11:34
can i record screen realtime?
for example i grab screen as a Pixmap or image and add to created avi file it.
create avi file "x"?
while()
{
grabWindow
add avi file
}
like this
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