thanks for the clarification about ImageStream Robert. If I understand right ImageStream buffers the frames in a PixelBufferObject and switches the frames in the compileBuffer() function. So if I could get feedback from this function then I could determine the frame count. Possibly the _compiledList[contextID] variable might help with this. Am I on the right track? Can you offer any advice?
Richard Hi *Richard*, > > These methods are virtual methods, and ImageStream is a base class... > that implementations subclass from, so the fact a header doesn't > implement something doesn't say anything about the actual > implementations that are meant to implement it. > > Secondly the getReferenceTime() and TimeMultiplier are an time offset > and multiple, that is used by the ImageStream implementations to > compute the current time, and not the current time of the movie. > > The actual time of the movie is something that would have to added to > ImageStream and its implementations, it should be possible to do this, > something like a getMovieTime(). > > Robert. > > On Fri, Sep 19, 2008 at 6:52 AM, *Richard* Baron *Penman* > <richardbp+...<http://groups.google.com/groups/unlock?_done=/group/osg-users/browse_thread/thread/bde4593fbcf2f787/c30a4b7745126399%3Flnk%3Dgst%26q%3Drichard%2Bpenman&msg=00cb577c06825440> > @gmail.com> wrote: > > hello, > > > I would like to display what percentage of a video has been played. I'm > > using the ImageStream class and I thought getReferenceTime() or > > getTimeMultiplier() might help me, but they always return 0. > > > Examining the header file I found this: > > 72 virtual double getLength() const { return 0.0; } > > 73 > > 74 virtual void setReferenceTime(double) {} > > 75 virtual double getReferenceTime() const { return 0.0; } > > 76 > > 77 virtual void setTimeMultiplier(double) {} > > 78 virtual double getTimeMultiplier() const { return 0.0; } > > > So it seems this functionality is not ready yet. Does anyone have an > > alternative way to determine the current playing video frame? > > > regards, > > *Richard* > > _______________________________________________ > > osg-users mailing list > > osg-us...<http://groups.google.com/groups/unlock?_done=/group/osg-users/browse_thread/thread/bde4593fbcf2f787/c30a4b7745126399%3Flnk%3Dgst%26q%3Drichard%2Bpenman&msg=00cb577c06825440> > @lists.openscenegraph.org > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph...<http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org> >
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