Well no joy when using -opengl. I just get a blank screen, no video. Running it in raster works, as it should.
Curiously, my CPU shoots up when it should be playing, and only to 1/2 of the raster engine's usage, which is encouraging. I'm on Ubuntu 10.10, With linux .35, qt 4.7.1, Mobility 1.1.0, gstreamer 0.10.6-1 ----- Original Message ---- From: Jason H <[email protected]> To: Dmytro Poplavskiy <[email protected]>; [email protected] Sent: Tue, November 30, 2010 11:33:00 PM Subject: Re: [Qt-mobility-feedback] gstreamer vs mplayer-vaapi I'm using it on a NVidia ION platform. I've got the X accelerated drivers. I'm using the stock qmlviewer binary. Prompted by your reply, I looked at the options, and added -opengl and wow, what a difference! My QML barely breaks 5% now. (should opengl be the default?) I'll look again at video usage using an opengl-enabled viewer. ----- Original Message ---- From: Dmytro Poplavskiy <[email protected]> To: [email protected] Cc: ext Jason H <[email protected]> Sent: Tue, November 30, 2010 8:00:42 PM Subject: Re: [Qt-mobility-feedback] gstreamer vs mplayer-vaapi On Wed, 1 Dec 2010 08:50:22 am ext Jason H wrote: > I've been doing some research and it seems gstreamer is not accelerated. It can be accelerated, depending on elements installed on the system. It's certainly accelerated on mobile devices. What platform are you asking about? > On more limited CPUs, video and QML will be a problem, as some of my QML > spikes at 80-90% It may also be related to video rendering, are you using QGLWidget based viewport? > > I hear that mplayer has the VA-api, which is hardware accelerated. How hard > is it to get the backend switched out? > > What are people doing on mobile CPUs for QML with video? > It depends on platform capabilities, HW accelerated decoding + rendering (using overlay or texture streaming/etc). Regards Dmytro. _______________________________________________ Qt-mobility-feedback mailing list [email protected] http://lists.trolltech.com/mailman/listinfo/qt-mobility-feedback _______________________________________________ Qt-mobility-feedback mailing list [email protected] http://lists.trolltech.com/mailman/listinfo/qt-mobility-feedback
