On Tue, 2001-11-27 at 15:22, Mike McGuire wrote: > On Mon, Nov 26, 2001 at 10:41:33PM +0100, Romain Lerallut wrote: > > Thus spake Mart van de Wege on Mon, Nov 26, 2001 at 08:32:47PM +0100: > > > > > > Using the dvdnav plugin for Xine, dvd playback skips a lot. It will play > > > a few scenes, the drive light goes on for more data, and at that moment > > > playback halts for a couple of seconds. All it does is print the > > > following message to the console: '406 frames delivered, 1 frames > > > skipped, 367 frames discarded'. > > > > > > ... > > > > I've got the same thing, mostly with dvdnav (can stop for 30sec > > sometimes) and slightly with dvdnav (stop for 1/2 seconds). > > This is with kernel 2.4.10 and 2.4.14, however it works used to work > > lawlessly with kernel 2.4.3 (at least nothing noticeable). > > (xine* 0.9.4 on Duron 700, Via chipset, GeForce 2MX) > > > > I can possibly run a few tests if someone needs it, including > > reviving my old 2.4.3. Anyway, if somebody has a fix, cc: to me, > > please. > > eh. Just an thought, but since you asked: > If it worked in 2.4.3 and doesn't work in the later kernel versions, > it could be an issue with the VM. (heh. I don't even know quite what > that means. :) I do know it deals with I/O, and from the description > of it, the dvdnav plugin sounds like it does some (non-sequential) > reads from the DVD to get the info for the navigation stuff. ...and > all sorts of I/O related pauses and outright hangs have been blamed > on the VM lately. It might be fixed soon- from my occasional look at > the LKML archive just yesterday there was some discussion on it. You > could try waiting a week or two and then get the latest kernel that > doesn't have any known severe bugs (like fs corruption, that'd be > bad...) > Ok,
(not snipping for full context) It might be indeed a VM problem. I have noticed that Xine claims an awful lot of memory (after quitting, some 75% of my 256M is freed up) and playing a DVD also seems to claim a lot of swap. Another thing might be the DeCSS plugin used. I've seen some skipping in normal playback too using the d4d plugin. I just switched to the dmd plugin from the VideoLAN site, and that appears to play a lot better (currently watching 'Das Boot' which used to skip with the d4d plugin, now it plays a lot better). Anyone see comparable behaviour under recent kernels? I'm now running 2.4.16, and everything appears normal, except the dvdnav plugin still causes skipping. Mart -- A dirty mind is a joy forever, Its sleaziness will never cease.
