See inline. -- Joe
--- Scott Harris <[EMAIL PROTECTED]> wrote: > > > > > It's my understanding that if you are displaying > the desktop > > solely on your PVR-350 (like I do) using it's X > driver > > supplied with ivtv drivers, then the capabilities > of only the > > PVR card are important. > > Currently, the PVR-350 card does not have XV > support, which > > means when playing back video that is not the same > size as > > the framebuffer of the PVR (720x480 for NTSC, > 720x576 for > > PAL) then some scaling is required. > > This is where the current problem lies when trying > to use > > mythvideo on the PVR-350 output - it just isn't > quite quick > > enough to do this. (at least on my Cel 2.4 system) > > > > When playing live TV or PVR recordings from the > PVR-350, > > obviously everything is the correct size, but when > trying to > > play XVid or DivX files via mythvideo, usually > files are not > > 720x480 - typically 640x352 or thereabouts and > this results > > in the stuttering you are likely to see. I would > think that > > DVD playback is more likely to work, as the frame > sizes > > should be the same as the framebuffer, resulting > in no/less jittering. > > > > XV support for your on-board video would be useful > anyway to > > speed things up when you are using your regular > VGA monitor > > etc, and will reduce the burden on your CPU a lot. > You may > > find that there are newer drivers for your VGA > available with > > XV support. If you are only going to be using the > system for > > mythtv, consider whether you want to use the 350 > for all > > output, or use it with another video card. If you > are only > > going to use the 350, you do not need XV support > for your > > other card, as X is only running on the 350. > Fingers crossed, > > in the near future the X driver for the PVR-350 > cards will > > support XV and things will speed up no end. > > > > In the meantime, you may want to see whether there > are newer > > drivers for your current on-board video chipset, > or obtain a > > newer video card that does have TV-Out and XV > support (e.g. a > > recent NVidia or ATI card > > - NVidia GeForce cards seems to have the edge on > this mailing > > list in terms of ease of installation and driver > support. I > > have found ATI's support to be slow and incomplete > so far on > > my Pundit-R system, but > > YMMV) > > > > Let us know what on-board chip you have, maybe an > updated > > driver is out. > > > > HTH, > > Nick > > Thanks for the reply, grealy appreciated. > My onboard is the following: > > 01:00.0 VGA compatible controller: S3 Inc. VT8375 > [ProSavage8 > KM266/KL266] (prog-if 00 [VGA]) > Subsystem: Micro-Star International Co., > Ltd.: Unknown device > 3908 > Flags: bus master, 66Mhz, medium devsel, > latency 32, IRQ 11 > Memory at e5000000 (32-bit, > non-prefetchable) [disabled] > [size=512K] > Memory at d8000000 (32-bit, prefetchable) > [disabled] [size=128M] > Capabilities: [dc] Power Management version > 2 > Capabilities: [80] AGP version 2.0 > > I think where I was confused is that I thought > xine/mplayer/ogle would > need to decode the image before sending the raw data > out to the pvr-350. Depending on the program you use, it might have to decode. MPlayer supports outputting to the PVR-350 natively, but I don't think that xine and ogle do yet. > So, if I had a faster video card (or one that > supported xv) it would be > able to decode the data faster, then just dump to > the out of the 350. No! The video cards are not chained! You would output either to your onboard video (or whatever card replaces it), OR to the PVR-350 card. Not both. Your regular video card cannot access the PVR-350 at all. The "faster video card" being able to decode the data does not help the PVR-350 at all. Nor does the PVR-350's MPEG-2 decoding help your regular video card out. Having a card that supports Xv would help out with scaling the image, so that it is done in hardware, instead of software. This is not implemented in the PVR-350 yet (and may not ever be, I don't know), but is implemented in a fair number of recent graphics cards. > > This is a dedicated system, so no need for X at all > really. > > Thanks, > > Scott > > _______________________________________________ > mythtv-users mailing list > [email protected] > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users > __________________________________ Do you Yahoo!? Yahoo! Small Business - Try our new resources site! http://smallbusiness.yahoo.com/resources/
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