The reason I use directfb is that tv output is handled at native NTSC (or PAL) resolution.
Using the kernel fb means setting modelines which will then be scaled to NTSC resolution for TV output. This means when playing a video file the file is being scaled to the fb resolution, then scaled again for TV output. Using directfb means that the video is scaled for TV, thats it. i.e. with a modeline of 640x480, when playing a DVD the picture will be scaled down from native resoltion to fit the screen, then the TV output hardware will upconvert that back to 720x480. Mame for fb doesn't scale as far as I know, what it will do is select the nearest modeline from /etc/fb.modes and use that. If you have a single modeline, then no scaling occurs, and you'll probably end up with a small window in the middle of the screen. Having a bunch of modes will allow mame to chose the nearest one, but then you're getting double scaling again. I tried xdirectfb from cvs a few weeks ago but didn't get very far, I could get X working, put an xterm on it etc. but the CPU usage was huge and the colors were off. I'll look into it again when I get more free time in the new year. On Thu, 11 Dec 2003 11:10:02 +0800, "Mick" <[EMAIL PROTECTED]> said: > the matrox series of cards (G4/45/500) can be used with fb in kernal as > apposed to directfb. I think mame will scale in fb.. > > > On Fri, 2003-12-05 at 00:18, Chris Griffiths wrote: > > I find the quality of my G400 excellent under directfb - i got one of > > ebay for ~20 bucks or so and made the cable myself. > > > > It takes some hassle to set up directb, and the screen goes blank when > > mplayer initializes it etc, but the main thing is that it outputs at true > > tv res, 720x480 (ntsc) not scaling 800x600 or 640x480 like most graphics > > cards and converters do. > > > > It also overscans perfectly, just like a dvd player would do. > > > > I'm only using a p2-400 with it, but performance is fine playing back > > divx's, passing ac3 audio (where available) out through a cheap-o trident > > 4mx card. Most divx's are using 30% cpu or less, as mplayer & directfb > > offload a lot of the work to the matrox card. > > > > The only thing is your limited to directfb apps - and in the case of > > xmame, which can use it - won't scale things, it will try to use a > > modline to adjust the resolution, which won't work with the fixed > > resolution the directfb tv output is working at (mplayer scales > > perfectly). > > > > Also factor in that from what I've heard xine's directfb output is > > broken, so dvd's are via mplayer only, which doesn't support dvd menus. > > > > Hope this helps, > > Chris > > > > On Thu, 04 Dec 2003 15:46:33 +1100, "Gordon Staines" > > <[EMAIL PROTECTED]> said: > > > Hi, > > > > > > Im thinking about putting together a multimedia PC to use as a TV and > > > DVD Player etc. I want to connect this to my TV just like my regular VCR > > > etc. > > > > > > My current PC has a TV out, but the signal doesnt appear to stretch to > > > the edges of my TV screen and looks rather ugly. I can find no way to > > > fix this. The card is an ASUS 7100 GForce2MX with TV out, I have so far > > > had no luck getting the TV out to work under linux, this isnt a problem > > > since I intend to build a new PC for this. > > > > > > Can someone recommend either a Motherboard or video card with TV out > > > card where you can set the default primary display without using > > > software. Some motherboards have TV out built in (various AOpen m/boards > > > do anyway) Does anyone know if you can enable the TV out to be the > > > primary display in bios or something? > > > > > > I know that some mini-itx boards will do this, but I was hoping to just > > > use a regular PC with some more grunt to do re-encoding etc > > > > > > Cheers > > > > > > -- > > > Gordon Staines > > > Software Developer > > > AdOnline Project > > > Phone: 03 9601 2768 > > > Mobile: 0419 568 411 > > > > > > > > > > > > > > > ********************************************************************************* > > > The information contained in this e-mail message and any accompanying > > > files is or may be confidential. If you are not the intended recipient, > > > any use, dissemination, reliance, forwarding, printing or copying of this > > > e-mail or any attached files is unauthorised. This e-mail is subject to > > > copyright. 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