Thank you Jason. I agree with you that GStreamer has neither a DRM framework nor general DRM API.
But GStreamer has a flexible signal mechanism. A DRM-aware plug-in can emit a self-defined signal for DRM message, warning or errors. And the application can process it in a signal handler. So I wonder whether Qt Mobility can provide a mechanism to translate such GStreamer plug-in signals to the application? Or Qt Mobility can define some common DRM signal or error codes ? Thanks Amanda From: Jason H [mailto:scorp...@yahoo.com] Sent: Thursday, October 21, 2010 8:49 AM To: Lin, Mengdong; qt-mobility-feedback@trolltech.com Subject: Re: [Qt-mobility-feedback] Will Qt & Qt Mobility provide general DRM API for protected media objects? I would say no, since Qt does not implement back ends. It uses GStreamer. So unless gstreamer implements it, then it won't work. On Windows, it is up to your DirectShow Filters. I've worked on such filters. I've not used them in Qt, but they worked with any DS-compatible software. As for more simple stuff, you can always write a QAbstractFileEngine interface, which should work via the QNAM stuff. In fact, I have. But I've not tested it against QML yet. ________________________________ From: "Lin, Mengdong" <mengdong....@intel.com> To: "qt-mobility-feedback@trolltech.com" <qt-mobility-feedback@trolltech.com> Sent: Wed, October 20, 2010 4:55:00 AM Subject: [Qt-mobility-feedback] Will Qt & Qt Mobility provide general DRM API for protected media objects? There are multiple DRM schemes existing in the mobile market now, to protect various media objects including image, ringtone, music and video. It would be very convenient if Qt and Qt Mobility can provide a general MeeGo DRM API for applications. Thus a image viewer or a media player need not care about which DRM scheme (e.g. OMA DRM or WM DRM) is actually used at the lower layer. Does Qt & Qt Mobility have a plan to provide such a DRM API? And will a DRM framework at the application level be possible in Qt ? Thanks & Best Regards Amanda
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