On Wednesday 09 March 2005 03:33 pm, Jeroen Brosens wrote: > > On Wednesday 09 March 2005 02:06 pm, Jeroen Brosens wrote: > >> I'd like to add that I'd like to challenge the MythTV dev-people to > >> review > >> the Xv/XvMC code regarding the handling of vsync while using bobdeint. > >> > >> One needs hardware with OpenGL support to have a Vsync to get bobdeint > >> working without going out of sync now and then (horrible jittering > >> occurs) > >> and that isn't good news for users of a barebone with built-in graphics > >> that can't support that, like myself (using an ASUS Pundit). > > > > Well, how do you expect it to know when to flip the buffers, if the video > > card > > can't tell it accurately? Magic? > > > > Isaac > > No Isaac, just something else than GL Vsync. I am not venting my > frustrations upon people either, rather just stirring up some new ideas on > this.
But it does - myth also supports getting the vsync info through the DRM interface. What 'new ideas' are you stirring up? I mean, it's obvious that you don't know what you're talking about, but other than that, it seems like you're just whinging to me. > Afterall, this is MythTV, Linux, Open Source... where meeting > challenges is the fun of everything! I also could have installed Windows > MCE and to be 'just a regular user on the safe side' but I want to be able > to participate in meeting the challenges where I can. > > What I understand now is that all of the devvers use nVidia, can you agree > that this diminishes compatibility regarding video-related > functionalities? I am not a C++ developer you know; if I were I would have > tried to fix the problems myself but I can't. No, I don't agree that it 'diminishes compatability' at all. There's nothing nvidia specific in either the drm or opengl vsync methods. If the driver for a particular video card doesn't provide certain services, such as, oh, providing a method to know when the next vsync will be, there's absolutely nothing that I can do about it. > Now on topic; am I talking plain nonsense when I ask whether the VBI > device can be used for Vsyncing? What I know is, that it is used for > teletext data and 'walks' in sync with the video fields so maybe that is > an alternative for using GL vsync. Err, the vbi device would be input, not output. Isaac _______________________________________________ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users