This feature is on the QtMobility roadmap, but not yet scheduled for a particular release:
http://bugreports.qt.nokia.com/browse/QTMOBILITY-589 If you're interested in it, please vote up the JIRA issue and, if appropriate, add comments to clarify your requirements. Gareth > -----Original Message----- > From: qt-mobility-feedback-bounces+ext-gareth.stockwell=nokia....@qt.nokia.com > [mailto:qt-mobility-feedback-bounces+ext- > [email protected]] On Behalf Of ext Niels Mayer > Sent: Thursday, February 10, 2011 1:42 AM > To: qt next > Cc: [email protected] > Subject: Re: [Qt-mobility-feedback] thumbnail of a video > > On Tue, Feb 8, 2011 at 2:45 PM, qt next <[email protected]> wrote: > > I have a qml application that use video. I need to render a poster frame of > > the video at variable position. It seems there is no easy way to do that > > with Qt-Mobility : the only I've find is to reimplement [...] > > Why not just run an external thumbnailer program? I don't see how this > depends on QtMobility... it's a matter of invoking, an external > program to do it... e.g. http://code.google.com/p/ffmpegthumbnailer/ > http://code.google.com/p/ffmpegsource/ ( I was planning on adding > some thumbnailing facilities to http://code.google.com/p/spekle/ -- > sorry it's in Vala -- which is included with MeeGo :-) ). > > Otherwise the path you suggest is actually even more circuitous -- > invoking a separate plugin (e.g. gstreamer) which would then invoke a > decoder, streaming from that, render from that, and capturing the > output.... But it's not a streaming operation, it's simply a data > operation -- so why invoke all that infrastructure instead of using a > specific tool for the purpose? > > Having thumbnailing done "under the hood" in QtMobility and QML > certainly sounds like a worthy feature request -- in that the > thumbnailing or other image or audio processing off a compressed > stream is something that many applications need. > > Please let me know what you come up with as I will want thumbnailing > in http://code.google.com/p/ytd- > meego/wiki/CitizenJournalismWithYoutubeDirectForMeego > -- I was planning to invoke an external process, launched out of > python/pyside. > > By the way, one thing that would really help doing this kind of thing > would be to have QML add a "declarative subprocess" facility -- > anybody want to give this feature request some love?? > http://bugreports.qt.nokia.com/browse/QTBUG-15178 > > Niels > http://nielsmayer.com > _______________________________________________ > Qt-mobility-feedback mailing list > [email protected] > http://lists.qt.nokia.com/mailman/listinfo/qt-mobility-feedback _______________________________________________ Qt-mobility-feedback mailing list [email protected] http://lists.qt.nokia.com/mailman/listinfo/qt-mobility-feedback
