> The trick is this, I can put this on several different machines - all are > Windows 7 Pro: > 1.) machine 1 - development box, can play some mp4s but not others (all > h264) > 2.) machine 2 - personal household box, will play the sampleFile mp4 > sometimes > 3.) machine 3 - COMPLETELY clean windows 7 pro install, aside from the > code above, has nothing installed on it, NEVER plays the mp4. > > All 3 machines can play the sampleFile.mp4 in Windows Media Player. > > As a final note, none of these will play FLV either. > > Pointers anyone? What am I missing here? >
QtMultimedia relies on 'backends' to work on different OS'. For Windows I think it uses 'DirectShow'. Is that installed and working properly on the machines you're trying? Here's more detail on the state of art: http://qt-project.org/wiki/Qt_Multimedia_Backends Places where video is not playing, it's possible that there's no support for the codec/container in the backend being used (DirectShow or some other). HTH, -mandeep > > Thanks! > > -Jason > > > > > > _______________________________________________ > Interest mailing list > Interest@qt-project.org > http://lists.qt-project.org/mailman/listinfo/interest >
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