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[directfb-users] Re: directfb and dfbmga
On Mon, Feb 02, 2004 at 10:14:47AM +0100, Werner John wrote: > Hello everyone > > First of all, thanks for DirectFB, I really like it! > > Last weekend, I played with mplayer's -vo option. Usually, I use -vo dfbmga > (my hardware is a Matrox G450) to get an image on TV. Then, I used -vo > directfb:layer=2 and also got an image on my TV, as expected. My question > is now, what is the difference (technically)? In that particular case very little. vo_dfbmga uses CRTC2 sub-picture layer to display the OSD and vo_directfb renders the OSD onto the video. There's also some difference how the two plugins use mplayer's direct rendering mechanism. Oh and last time I checked vo_directfb always used DSFLIP_WAITFORSYNC flag which makes triple buffering useless (it behaves exactly the same as double buffering). vo_dfbmga uses DSFLIP_ONSYNC with triple buffering. There are some other differences too. vo_dfbmga supports output to CRTC2 and BES at the same time. And it also handles fullscreen playback on the BES better than vo_directfb. vo_directfb is more versatile because it tries to handle all kinds of hardware not just Matrox cards. -- Ville Syrjälä firstname.lastname@example.org http://www.sci.fi/~syrjala/ -- Info: To unsubscribe send a mail to email@example.com with "unsubscribe directfb-users" as subject.